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  • Programatic re-evalutation of MVVM command's "can execute" state

    - by dzs
    Hello! I'm writing a WPF application using the MVVM pattern, based on the following article: WPF Apps With The Model-View-ViewModel Design Pattern I have two buttons on my View with the buttons' "Command" property bound (with data binding) to a given instance of the RelayCommand class (see "Figure 3 The RelayCommand Class" from the article above). The RelayCommand class has support for checking whether the given command can be executed. WPF automatically disables buttons whose command cannot be executed. Each of my commands (in the ViewModel class) start a background operation, and the command cannot be executed again until the background operation is finished. The RelayCommand instances have information whether the background operation is still working or it is finished. My problem is the following: after pressing the any of the buttons, the buttons automaticaly go disabled (which is OK) because the background operation started and the command cannot be executed until it is finished, but after the operation had finished, the buttons don't go enabled automatically because their command's "can be executed" predicate is not automatically reevaluated. The reevaluation can be manually triggered by having the application loose and regain focus (by pressing ALT+TAB). After doing this trick, the buttons get enabled once again. How can I programatically reevaluate the buttons' command's "can execute" state?

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  • Show cue banner for wpf ComboBox with grouping

    - by Adam Duston
    I have a ComboBox in my WPF form: <ComboBox Margin="75,0,15,102" Name="videoFormatCombo" Height="23" VerticalAlignment="Bottom" DataContext="{StaticResource GroupedVideoFormats}" ItemsSource="{Binding}" ItemTemplate="{StaticResource VideoFormatTemplate}"> <ComboBox.GroupStyle> <GroupStyle HeaderTemplate="{StaticResource GroupHeader}"/> </ComboBox.GroupStyle> </ComboBox> As you might be able to guess, GroupedVideoFormats is a CollectionViewSource with grouping. I need to get a cue banner to display for this ComboBox. I've attempted the solution that is (very verbosely) outlined in this blog post, but it will not work for a ComboBox with grouped data. The two solutions outlined in superfluousprefixhttp://stackoverflow.com/questions/2548757/how-can-the-blank-space-in-a-c-combobox-be-filled-as-a-hint-for-the-user are for Windows Forms ComboBoxes only, and won't work with WPF. If it would help to see all the original source, this particular form is on github: superfluousprefixhttp://github.com/8planes/mirovideoconverter/blob/master/MSWindows/Windows/FileSelect.xaml . It's an open-source project, so the entire project is on github: superfluousprefixhttp://github.com/8planes/mirovideoconverter/tree/master/MSWindows . Thank you for any advice! Adam P.S. stackoverflow wouldn't let me make more than one anchor tag in my post, hence the long urls with the superfluous prefix. Sorry!

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  • Unhandled exception when DataTemplate created dynamically using Silverlight 3.0

    - by user333397
    Requirement is to create a reusable multi-select combobox custom control. To accomplish this, I am creating the DataTemplate dynamically through code and set the combobox ItemTemplate. I am able to load the datatemplate dynamically and set the ItemTemplate, but getting unhandled exception (code: 7054) when we select the combobox. Here is the code Class MultiSelCombBox: ComboBox { public override void OnApplyTemplate() { base.OnApplyTemplate(); CreateTemplate(); } void CreateTemplate() { DataTemplate dt = null; if (CreateItemTemplate) { if (string.IsNullOrEmpty(CheckBoxBind)) { dt = XamlReader.Load(@"<DataTemplate xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' x:Name=""DropDownTemplate""><Grid xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' x:Name=""CheckboxGrid""><TextBox xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' x:Name=""test"" xml:space=""preserve"" Text='{Binding " + TextContent + "}'/></Grid></DataTemplate>") as DataTemplate; this.ItemTemplate = dt; } } } //Other code goes here }} what am i doing wrong? suggestion?

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  • 2 javascripts problem

    - by pradeep
    <?php global $user; $userId = $user->uid; /* start with default */ $myresult = ""; /* All Includes - start */ include_once('db.php'); include_once('valid-scripts/validateData.php'); /* All Includes - end */ /* Build All required Variables - start */ $alias = $_GET['alias']; $product = $_GET['product']; $product = strtolower(substr($product,0,-1)); $master_table = $product.'_master'; $rating_master_table = $product.'_rating_master'; $rating_table = $product.'_rating'; $numProperties = 15; /* Build All required Variables - end */ /* Add all Styles required - start */ $myresult .= '<link href="/jquery.rating.css" type="text/css" rel="stylesheet"/>'; /* Add all Styles required - end */ /* Show Hide Variables/parameters - start */ include_once('all_include_files/show_hide.php'); /* Show Hide Variables/parameters - end */ /* All Javascript - start */ //$myresult .= '<script src="/jquery.rating.js" type="text/javascript" language="javascript"></script>'; ?> <style> #tabs { //font-size: 90%; //margin: 20px 0; margin: 2px 0; } #tabs ul { float: right; background: #E3FEFA; width: 600px; //padding-top: 4px; } #tabs li { margin-left: 8px; list-style: none; } * html #tabs li { display: inline; /* ie6 double float margin bug */ } #tabs li, #tabs li a { float: left; } #tabs ul li a { text-decoration: none; //padding: 8px; color: #0073BF; font-weight: bold; } #tabs ul li.active { background: #CEE1EF url(/all_include_files/img/nav-right.gif) no-repeat right top; } #tabs ul li.active a { background: url(/all_include_files/img/nav-left.gif) no-repeat left top; color: #333333; } #tabs div { //background: #CEE1EF; clear: both; //padding: 20px; min-height: 200px; } #tabs div h3 { text-transform: uppercase; margin-bottom: 10px; letter-spacing: 1px; #tabs div p { line-height: 150%; } </style> <script src="/jquery.rating.js" type="text/javascript" language="javascript"></script> <script src="/jquery.metadata.js" type="text/javascript" language="javascript"></script> <script type='text/javascript'> function openComment(number) { alert('working'); $('#comment'+number).css('display',''); } $('.star').rating({ callback: function(value, link){ alert(value); } }); $(document).ready(function() { //$('#tabs div').hide(); //$('#tabs div:first').show(); $('#tabs ul li:first').addClass('active'); $('#tabs ul li a').click(function() { $('#tabs ul li').removeClass('active'); $(this).parent().addClass('active'); var currentTab = $(this).attr('href'); $('#tabs div').hide(); $(currentTab).show(); return false; }); $("#clickit").click(function() { $.post("/mobile/tablechange.php",{ p1:'<?php echo $brand ?>',p2:'<?php echo $model ?>',userid:'<?php echo $userid ?>' } ,function(data){ $("#changetable").html(data); }); }); $('div.expandable p').expander({ slicePoint: 200, // default is 100 expandText: 'more &raquo;', // default is 'read more...' collapseTimer: 0, // re-collapses after 5 seconds; default is 0, so no re-collapsing userCollapseText: '[^]' // default is '[collapse expanded text]' }); }); </script> <?php /* All Javascript - end */ /* Form Processing after submit - start */ /* Form Processing after submit - end */ /* Actual Form or Page - start */ /*fetch all data needed */ /* initial query */ $result_product = query_product_table($product,$alias); /*fetch property names of product */ $product_properties = master_table($master_table); /*rating table query */ $master_rating_properties = master_rating_table($rating_master_table); /*get user ratings*/ $user_ratings = user_ratings($userId,$alias,$rating_table); $myresult .= '<div class=\'Services\'>'; //$myresult .="<form name ='form1' id='form1' method = 'POST' action='".$_SERVER['php_self'] ."'>"; if(!$result_product) { header('Location: /page-not-found'); } else { $row_product = mysql_fetch_array($result_product); $myresult .= "<h3 class='newstyle'>".$row_product['alias']." <a style='float:right;padding-right:20px;color:white;text-decoration:underline;' href='/'>Back</a> </h3>"; /* start actual product display - start*/ $myresult .= "<div class=\"product\">"; /* start table 1*/ $myresult .= '<table border=\'0\' cellspacing=\'0\' cellpadding=\'0\' style=\'width:580px; table-layout:fixed;\'>'; $myresult .= '<tr>'; $myresult .='<td valign=\'top\'>'; /* start table 2*/ $myresult .='<table width=\'100%\' border=\'0\' cellspacing=\'0\' cellpadding=\'0\'>'; $myresult .= '<tr>'; $myresult .= '<td valign=\'top\' style=\'width:164px;\'>'; /* start table 3*/ $myresult .= '<table style=\'width:164px;\' border=\'0\' cellspacing=\'0\' cellpadding=\'0\'>'; $myresult .= "<tr>"; /* start of the pic row */ $myresult .= '<td align=\'center\' class=\'various_product\'>'; if($row_product['pic'] != "") { $myresult .= '<ul id=\'mycarousel\' style=\'display:\';>'; $myresult .= '<li><a href=\'/all_image_scripts/origpicdisplay.php?product='.rawurlencode($product).'&alias='.rawurlencode($alias).'&picid=pic&p= \'rel=\'lightbox[roadtrip]\'><img src=\'/all_image_scripts/picdisplay1.php?product='.rawurlencode($product).'&alias='.rawurlencode($alias).'\'></img></a></li>'; for($p = 1; $p <= 4; $p++) { if($row_product['pic'.$p] != "") { $myresult .= '<li><a href=\'/all_image_scripts/origpicdisplay.php?product='.rawurlencode($product).'&alias='.rawurlencode($alias).'&picid=pic'.rawurlencode($p).'&p='.rawurlencode($p).'\' rel=\'lightbox[roadtrip]\'><img src=\'/all_image_scripts/thumbpicdisplay.php?product='.rawurlencode($product).'&alias='.rawurlencode($alias).'&picid=pic'.rawurlencode($p).'\'></img></a></li>'; } } $myresult .= '</ul>'; } else { $myresult .= "<img width='50' height='70' src='/images/no-image.gif'></img>"; } jcarousel_add('#mycarousel', array('horizontal' => TRUE,'scroll' => 1,'visible' => 1)); $myresult .= "</td>"; /* end display of pic td*/ $myresult .= "</tr>"; /* end display of pic tr*/ $myresult .= "</table></td>"; /* end display of pic table and earlier td - Still 1 open TR td table tr -hint*/ $myresult .= '<td style=\'width:450px;\'>'; /*table - 4*/ $myresult .= '<table width=\'100%\' border=\'0\' cellspacing=\'0\' cellpadding=\'0\' style=\'display:block;\'>'; /* Start showing property and values */ $myresult .= '<tr>'; $myresult .= '<td class=\'tick\'><img src=\'/images/ul_li_bg.gif\' width=\'12\' height=\'12\' /></td>'; $myresult .= '<td class=\'leftText\'>'.ucfirst($product).':</td>'; $myresult .= '<td class=\'rightText\'>'.$row_product['alias'] .'</td>'; $myresult .= "</tr>"; for($j = 3; $j <= 5 ; $j++){ if($product_properties['property'.$j.'_name'] != "") { if($row_product['property'.$j] != "") { $myresult .= '<tr>'; $myresult .= '<td class=\'tick\'><img src=\'/images/ul_li_bg.gif\' width=\'12\' height=\'12\' /></td>'; $myresult .= '<td class=\'leftText\'>'.$product_properties['property'.$j.'_name'].':</td>'; $myresult .= '<td class=\'rightText\'>'.$row_product['property'.$j] .'</td>'; $myresult .= '</tr>'; } /* end if*/ } /* end if*/ } /* end for*/ /* show hide block */ $myresult .= '<tbody id=\'extra_properties\' style=\'display: none;\'>'; for($j = 6; $j <= 15 ; $j++){ if($product_properties['property'.$j.'_name'] != "") { if($row_product['property'.$j] != "") { $myresult .= '<tr>'; $myresult .= '<td class=\'tick\'><img src=\'/images/ul_li_bg.gif\' width=\'12\' height=\'12\' /></td>'; $myresult .= '<td class=\'leftText\'>'.$produtc_properties['property'.$j.'_name'].':</td>'; $myresult .= '<td class=\'rightText\'>'.$row_product['property'.$j] .'</td>'; $myresult .= '</tr>'; } /* end if*/ } /* end if*/ } /* end for */ $myresult .= '</tbody>'; /* end show/hide tbody */ $myresult .= '<tr>'; $myresult .= '<td>'; $myresult .= '&nbsp;'; $myresult .= '</td>'; $myresult .= '<td>'; $myresult .= '&nbsp;'; $myresult .= '</td>'; $myresult .= '<td align=\'right\' style=\'text-align:right;text-decoration:underline;\'>'; $myresult .= '<a class=\'right_link\' href=\'javascript:showMore()\'>Show Additional Details...</a>'; $myresult .= '</td>'; $myresult .= '</tr>'; /* End showing property and values */ $showreview = 'display:'; /* review show hide */ /*$myresult .= '<tbody '.$showreview.'>'; $myresult .= '<tr>'; $myresult .= '<td colspan=\'2\'><span class=\'reviews\'>'; //check //$numreviews = getreviewcount($brand,$model,'mobile_user_reviews'); if($numreviews > 0) { $myresult .= '<a href=\'mobilereviews?alias='.rawurlencode($alias).'\'> <span>$numreviews Reviews</span></a>'; } else { $myresult .= " $numreviews Reviews"; } $myresult .= "</span></td>"; $myresult .= "</tr>"; */ $myresult .= "</tbody>"; /* review show hide - end */ /* count show hide */ $myresult .= '<tbody '.$showcount.'>'; $myresult .= '<tr>'; $myresult .= '<td colspan=\'2\'><span class=\'reviews\'>'; //check //$totalvotes = gettotalvotes($row['property1'],$row['property2'],'mobile_rating'); $myresult .= "</td>"; $myresult .= "</tr>"; $myresult .= "</tbody>"; /* count show hide - end */ $myresult .= "</table></td>"; /* end table 4 */ $myresult .= '</tr>'; /* end 1 row and remaining tr , td ,table */ $myresult .= '</table></td>'; $myresult .= '</tr>'; /* remianing only 1 table */ /* ratings - positive last section starts here */ $max= array(); for ($l = 1 ; $l < 15; $l++){ if($row_product['property'.$l.'_avg']){ $maxarray = 0; $maxarray = $row_product['property'.$l.'_avg']; $max['rating'.$l.'_name'] = $maxarray; } } if(count($max) >0 ) { include('all_include_files/min_max_properties.php'); } if(($row_product['freshness'] <= strtotime("-3 month"))) { $image_type= 'old'; } else if(($row_product['freshness'] <= strtotime("-2 month"))) { $image_type= 'bitold'; } else if(($row_product['freshness'] <= strtotime("-1 month")) || ($row_product['freshness'] > strtotime("-1 month"))) { $image_type= 'new'; } $img_name = $image_type; $myresult .= "<tr>"; $myresult .= "<td>"; $myresult .= "<table width='100%' border='0'>"; $myresult .= "<tr>"; $myresult .= "<td width='170' class=\"ratingz\"><span><u>Overall rating</u></span></td>"; $myresult .= "<td width='150' class=\"ratingz\"><span><u>Positive</u></span></td>"; $myresult .= "<td width='150' class=\"ratingz\"><span><u>Negative</u></span></td>"; if($img_name == 'new'){ $images = "<img src='/sites/default/files/battery-discharging-100.png' width='40' height='40'></img>"; } else if($img_name == 'bitold'){ $images = "<img src='/sites/default/files/battery-discharging-80.png' width='40' height='40'></img>"; } else if($img_name == 'old'){ $images = "<img src='/sites/default/files/battery-discharging-0.png' width='40' height='40'></img>"; } else { $images = ""; } $myresult .= "<td rowspan='2'><p ".$showbattery.">". $images ."</p></td>"; $myresult .= "</tr>"; $myresult .= "<tr>"; $myresult .= "<td>"; $i++; for($k = 0.5; $k <= 10.0; $k+=0.5) { $overall = roundOff($row_product['overall_rating']); if($overall == $k) { $chk ="checked"; } else { $chk = ""; } $myresult .= '<input class=\'star {split:2}\' type=\'radio\' value=\''. $k .'\' '.$chk.' title=\''. $k.' out of 10 \' disabled />'; } $myresult .= '</td>'; $myresult .= '<td ><span>'.$positive.'</span></td>'; $myresult .= '<td ><span>'.$negative.'</span></td>'; $myresult .= '</tr>'; $myresult .= '</table></td>'; $myresult .= '</tr>'; /* ratings - positive last section ends here */ $myresult .= '<tr>'; if($row_product['description'] != ""){ if(words_count($row_product['description']) > 8){ $myresult .= '<td><p><span class=\'description\'><strong><u>Description</u>:</strong></span>&nbsp;&nbsp; <div class=\'expandable\'><p>'.$row_product['description'].'</div></p></p></td>'; } else { $myresult .= '<td><p><span class=\'description\'><strong><u>Description</u>:</strong></span>&nbsp;&nbsp;'. $row_product['description'] .'</p></td>'; } } $myresult .= '</tr>'; $myresult .= '</table>'; /* end 1st table */ $myresult .= '</div>'; /* start actual product display - end*/ /*start the form to take ratings */ $myresult .= '<div id=\'tabs\'>'; $myresult .= '<ul>'; $myresult .= '<li><a href=\'#tab-1\'>Ratings</a></li>'; $myresult .= '<li><a href=\'#tab-2\'>Click here to rate</a></li>'; $myresult .= '</ul>'; $myresult .= '<div id=\'tab-1\'>'; /* actual rating table - start - jsut display ratings */ $myresult .= '<table id=\'rounded-corner\'>'; /* thead - start */ $myresult .= '<thead>'; $myresult .= '<tr>'; $myresult .= '<th width=\'30%\' class=\'rounded-company\' scope=\'col\'><span style=\'font: normal 18px Arial, Helvetica, sans-serif; color:#FFF;\'>Ratings</span></th>'; $myresult .= '<th width=\'70%\' colspan=\'2\'class=\'rounded-q4\' scope=\'col\'><a href=\'#rounded-corner\' id=\'clickit\' style=\'color:white;text-decoration:underline;\' $disabled ></a></th> '; /*$myresult .= '<th width=\'70%\' colspan=\'2\'class=\'rounded-q4\' scope=\'col\'><a href=\'#rounded-corner\' id=\'clickit\' style=\'color:white;text-decoration:underline;\' $disabled >Click here to rate</a></th> ';*/ $myresult .= '</tr>'; $myresult .= '</thead>'; /* thead - end */ /* tbody - start */ $myresult .= '<tbody>'; /*start printing the table wth feature and ratings */ for ($i = 1 ; $i < $numProperties; $i++){ if($master_rating_properties['rating'.$i.'_name']){ $myresult .= '<tr>'; $myresult .= '<td width=\'22%\'>'; $indfeature = 0; $indfeature = $row_product['property'.$i.'_avg']; $myresult .= $master_rating_properties['rating'.$i.'_name'].' ( '.$indfeature .')'; $myresult .= '</td>'; $myresult .= '<td colspan=\'0\' width=\'38%\' >'; $tocheck = $indfeature; for($k = 0.5; $k <= 10.0; $k+=0.5){ $tocheck = roundOff($tocheck); if(($tocheck) == $k) { $chk = "checked"; } else { $chk = ""; } $myresult .= '<input class=\'star {split:2}\' type=\'radio\' name=\'drating'.$i.'\' id=\'drating'.$i.''.$k.'\' value=\''. $k .'\' '.$chk.' title=\''. $k.' out of 10 \' disabled \'/>'; } /* for k loop end */ $myresult .= '</tr>'; } /* end if loop */ } /* end i for loop */ $myresult .= '</tbody>'; /* end tbody */ /* footer round corner start */ $myresult .= '<tfoot>'; $myresult .= '<tr>'; $myresult .= '<td class=\'rounded-foot-left\'>&nbsp;</td>'; $myresult .= '<td class=\'rounded-foot-right\' colspan=\'4\' >'; $myresult .= '</td>'; $myresult .= '</tr>'; $myresult .= '</tfoot>'; $myresult .= '</table>'; /*round corner table end */ $myresult .= '</div>'; /*end 1st tab */ /*start 2nd tab */ $myresult .= '<div id=\'tab-2\'>'; $myresult .= '<form name =\'form1\' id=\'form1\' method = \'POST\' action=\''.$_SERVER['php_self'] .'\'>'; /* actual rating table - start - actual rate/update */ $myresult .= '<table id=\'rounded-corner\'>'; /* thead - start */ $myresult .= '<thead>'; $myresult .= '<tr>'; $myresult .= '<th width=\'30%\' class=\'rounded-company\' scope=\'col\'><span style=\'font: normal 18px Arial, Helvetica, sans-serif; color:#FFF;\'>Ratings</span></th>'; $myresult .= '<th width=\'70%\' colspan=\'2\'class=\'rounded-q4\' scope=\'col\'></th>'; $myresult .= '</tr>'; $myresult .= '</thead>'; /* thead - end */ /* tbody - start */ $myresult .= '<tbody>'; unset($i); /*start printing the table wth feature and ratings */ for ($i = 1 ; $i < $numProperties; $i++){ if($master_rating_properties['rating'.$i.'_name']){ $myresult .= '<tr>'; /*fetch ratings and comments - 1st make it to null */ $indfeature = 0; $comment = ''; $indfeature = $user_ratings['rating'.$i]; if($indfeature == NULL){ $indfeature = 0; } $comment = $user_ratings['rating'.$i.'_comment']; $myresult .= '<td width=\'22%\'>'; $myresult .= $master_rating_properties['rating'.$i.'_name'].' ( '.$indfeature.' )'; $myresult .= '</td>'; $myresult .= '<td colspan=\'0\' width=\'38%\' >'; if(($userId != '0') && (is_array($user_ratings))) { $tocheck = $indfeature; } else { $tocheck = '0'; } for($k = 0.5; $k <= 10.0; $k+=0.5){ $tocheck = roundOff($tocheck); if(($tocheck) == $k) { $chk = "checked"; } else { $chk = ""; } $myresult .= '<input class=\'star {split:2}\' type=\'radio\' name=\'rating'.$i.'\' id=\'rating'.$i.''.$k.'\' value=\''. $k .'\' '.$chk.' title=\''. $k.' out of 10 \' '.$disabled.' \' />'; } /* for k loop end */ $myresult .= '</td>'; $myresult .= '<td width=\'40%\'>'; $myresult .= '<input title=\'Reason for this Rating.. \'type=\'text\' size=\'25\' name=\'comment'.$i.'\' id=\'comment'.$i.'\' style=\'display:;\' maxlength=\'255\' value="'.$comment.'">'; $myresult .= '</td>'; $myresult .= '</tr>'; } /* end if loop */ } /* end i for loop */ $myresult .= '</tbody>'; /* end tbody */ /* footer round corner start */ $myresult .= '<tfoot>'; $myresult .= '<tr>'; $myresult .= '<td class=\'rounded-foot-left\'>&nbsp;</td>'; $myresult .= '<td class=\'rounded-foot-right\' colspan=\'4\' >'; if(($userId != '0') && (is_array($user_ratings))) { $myresult .= '<input type=\'button\' id=\'update_form\' value=\'Update\'>'; } else { $myresult .= '<input type=\'button\' id=\'save_form\' value=\'Save\'>'; } $myresult .= '</td>'; $myresult .= '</tr>'; $myresult .= '</tfoot>'; $myresult .= '</table>'; /*round corner table end */ $myresult .= '</form>'; /*end the form to take ratings */ $myresult .= '</div>'; /*end 2nd tab */ $myresult .= '</div>'; /*end tabs div */ /* actual rating table - end */ /* 1st form ends here id- ratings_form */ } /* end of if loop result_product loop */ /* start table 3 - overall comment*/ $myresult .= '<table border=\'0\' cellspacing=\'0\' cellpadding=\'0\' style=\'width:580px; table-layout:fixed;\' id=\'rounded-corner\'>'; $myresult .= '<tbody>'; /* thead - start */ $myresult .= '<thead>'; $myresult .= '<tr>'; $myresult .= '<th width=\'100%\' colspan=\'2\' class=\'rounded-company\' scope=\'col\'><span style=\'font: normal 18px Arial, Helvetica, sans-serif; color:#FFF;\'>Overall Comments</span></th>'; $myresult .= '<th colspan=\'3\' class=\'rounded-q4\' scope=\'col\'></th>'; $myresult .= '</tr>'; $myresult .= '</thead>'; /* thead - end */ $myresult .= '<tr>'; $myresult .= '<td colspan=\'4\'>'; $myresult .= '<textarea title=\'OverAll Comment\' name=\'overall_comment\' cols=\'65\'></textarea>'; $myresult .= '</td>'; $myresult .= '</tr>'; $myresult .= '<tbody>'; $myresult .= '</table>'; /* end table 3 - overall comment*/ /* start table 4 - summary*/ $myresult .= '<table border=\'0\' cellspacing=\'0\' cellpadding=\'0\' style=\'width:580px; table-layout:fixed;\' id=\'rounded-corner\'>'; $myresult .= '<tbody>'; /* thead - start */ $myresult .= '<thead>'; $myresult .= '<tr>'; $myresult .= '<th colspan=\'2\' class=\'rounded-company\' scope=\'col\'><span style=\'font: normal 18px Arial, Helvetica, sans-serif; color:#FFF;\'>Your Opinion</span></th>'; $myresult .= '<th colspan=\'2\'class=\'rounded-q4\' scope=\'col\'></th>'; $myresult .= '</tr>'; $myresult .= '</thead>'; /* thead - end */ $myresult .= '<tr>'; $myresult .= '<td colspan=\'2\'>'; $myresult .= 'Do you Agree with the Ratings'; $myresult .= '</td>'; $myresult .= '<td colspan=\'2\'>'; $myresult .= 'Was the Information Helpful'; $myresult .= '</td>'; $myresult .= '</tr>'; $myresult .= '<tr>'; $myresult .= '<form name=\'form2\' id=\'form2\' method=\'post\'>'; $myresult .= '<td>'; $myresult .= '<input type=\'button\' class=\'agree\' value=\'agree\'>'; $myresult .= '</td>'; $myresult .= '<td>'; $myresult .= '<input type=\'button\' class=\'disagree\' value=\'disagree\'>'; $myresult .= '</td>'; $myresult .= '<input type=\'hidden\' name=\'agree_disagree\' id=\'agree_disagree\'>'; $myresult .= '</form>'; $myresult .= '<form name=\'form3\' id=\'form3\' method=\'post\'>'; $myresult .= '<td>'; $myresult .= '<input type=\'button\' class=\'helpful\' value=\'Helpful\'>'; $myresult .= '</td>'; $myresult .= '<td>'; $myresult .= '<input type=\'button\' class=\'nothelpful\' value=\'Not Helpful\'>'; $myresult .= '</td>'; $myresult .= '<input type=\'hidden\' name=\'help_nohelp\' id=\'help_nohelp\'>'; $myresult .= '</form>'; $myresult .= '</tr>'; $myresult .= '</tbody>'; $myresult .= '</table>'; /*end table 4 summary table */ $myresult .= '</div>'; /* Actual Form or Page - end */ echo $myresult; //echo 'Product: '.$product; //echo '<br/>Alias: '.$alias; ?> hey this code is working fine for me . as required. the star class code is taken from http://www.fyneworks.com/jquery/star-rating/ ... it works well.. but when i insert code to add tabs for content ,the starts is not visible at all. but when i check source code. the stars are actually there . dono whats the prob. any suggestions on this this is the tabs code $('#tabs div').hide(); ('#tabs div:first').show(); $('#tabs ul li:first').addClass('active'); $('#tabs ul li a').click(function() { $('#tabs ul li').removeClass('active'); $(this).parent().addClass('active'); var currentTab = $(this).attr('href'); $('#tabs div').hide(); $(currentTab).show(); return false; });

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  • GridView's NewValues and OldValues empty in the OnRowUpdating event.

    - by Abe Miessler
    I have the GridView below. I am binding to a custom datasource in the code behind. It gets into the "OnRowUpdating" event just fine, but there are no NewValues or OldValues. Any suggestions as to how I can get these values? <asp:GridView ID="gv_Personnel" runat="server" OnRowDataBound="gv_Personnel_DataBind" OnRowCancelingEdit="gv_Personnel_CancelEdit" OnRowEditing="gv_Personnel_EditRow" OnRowUpdating="gv_Personnel_UpdateRow" AutoGenerateColumns="false" ShowFooter="true" DataKeyNames="BudgetLineID" AutoGenerateEditButton="true" AutoGenerateDeleteButton="true" > <Columns> <asp:BoundField HeaderText="Level of Staff" DataField="LineDescription" /> <%--<asp:BoundField HeaderText="Hrs/Units requested" DataField="NumberOfUnits" />--%> <asp:TemplateField HeaderText="Hrs/Units requested"> <ItemTemplate> <%# Eval("NumberOfUnits")%> </ItemTemplate> <EditItemTemplate> <asp:TextBox ID="tb_NumUnits" runat="server" Text='<%# Bind("NumberOfUnits")%>' /> </EditItemTemplate> </asp:TemplateField> <asp:BoundField HeaderText="Hrs/Units of Applicant Cost Share" DataField="" NullDisplayText="0" /> <asp:BoundField HeaderText="Hrs/Units of Partner Cost Share" DataField="" NullDisplayText="0" /> <asp:BoundField FooterStyle-Font-Bold="true" FooterText="TOTAL PERSONNEL SERVICES:" HeaderText="Rate" DataFormatString="{0:C}" DataField="UnitPrice" /> <asp:TemplateField HeaderText="Amount Requested" ItemStyle-HorizontalAlign="Right" FooterStyle-HorizontalAlign="Right" FooterStyle-BorderWidth="2" FooterStyle-Font-Bold="true"/> <asp:TemplateField HeaderText="Applicant Cost Share" ItemStyle-HorizontalAlign="Right" FooterStyle-HorizontalAlign="Right" FooterStyle-BorderWidth="2" FooterStyle-Font-Bold="true"/> <asp:TemplateField HeaderText="Partner Cost Share" ItemStyle-HorizontalAlign="Right" FooterStyle-HorizontalAlign="Right" FooterStyle-BorderWidth="2" FooterStyle-Font-Bold="true"/> <asp:TemplateField HeaderText="Total Projet Cost" ItemStyle-HorizontalAlign="Right" FooterStyle-HorizontalAlign="Right" FooterStyle-BorderWidth="2" FooterStyle-Font-Bold="true"/> </Columns> </asp:GridView>

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  • Trigger doesn't work

    - by Pasha
    Hello everyone, I have an user control, It is editable text block. The content of the control is: <DataTemplate x:Key="DisplayModeTemplate"> <TextBlock Text="{Binding ElementName=mainControl, Path=FormattedText}" Margin="5,3,5,3" /> </DataTemplate> <Style TargetType="{x:Type Controls:EditableTextBlock}"> <Setter Property="ContentTemplate" Value="{StaticResource EditModeTemplate}"/> <Style.Triggers> <Trigger Property="IsInEditMode" Value="True"> <Setter Property="ContentTemplate" Value="{StaticResource EditModeTemplate}" /> </Trigger> <Trigger Property="IsInEditMode" Value="False"> <Setter Property="ContentTemplate" Value="{StaticResource DisplayModeTemplate}" /> </Trigger> </Style.Triggers> </Style> </UserControl.Resources> Also i have another window with tree view: When treeView1_KeyDown fires I set IsInEditMode to true, but it seems that trigger doesn't work, because content template don't change. Anyone, please explain me why?

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  • How to implement menuitems that depend on current selection in WPF MVVM explorer-like application

    - by Doug
    I am new to WPF and MVVM, and I am working on an application utilizing both. The application is similar to windows explorer, so consider an app with a main window with menu (ShellViewModel), a tree control (TreeViewModel), and a list control (ListViewModel). I want to implement menu items such as Edit - Delete, which deletes the currently selected item (which may be in the tree or in the list). I am using Josh Smith's RelayCommand, and binding the menuitem to a DeleteItemCommand in the ShellViewModel is easy. It seems like implementing the DeleteItemCommand, however, requires some fairly tight coupling between the ShellViewModel and the two child view models (TreeViewModel and ListViewModel) to keep track of the focus/selection and direct the action to the proper child for implementation. That seems wrong to me, and makes me think I'm missing something. Writing a focus manager and/or selection manager to do the bookkeeping does not seem too hard, and could be done without coupling the classes together. The windowing system is already keeping track of which view has the focus, and it seems like I'd be duplicating code. What I'm not sure about is how I would route the command from the ShellViewModel down to either the ListViewModel or the TreeViewModel to do the actual work without making a mess of the code. Some day, the application will be extended to include more than two children, and I want the shell to be as ignorant of the children as possible to make that extension as painless as possible. Looking at some sample WPF/MVVM applications (Karl Shifflett's CipherText, Josh Smith's MVVM Demo, etc.), I haven't seen any code that does this (or I didn't understand it). Regardless of whether you think my approach is way off base or I'm just missing a small nuance, please share your thoughts and help me get back on track. Thanks!

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  • How to customize HeaderTemplate of ValidationSummary Silverlight control?

    - by BravcM
    Hello, I'd like to customize HeaderTemplate of ValidationSummary control from Silverlight Toolkit and display localized Header. But I cant figure out how to display error counter right to header's text ... Can anybody help me with this? My current XAML code ... <sdk:ValidationSummary Grid.Row="3"> <sdk:ValidationSummary.HeaderTemplate> <DataTemplate> <Grid Background="Red"> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="Auto" /> </Grid.ColumnDefinitions> <TextBlock UseLayoutRounding="False" Foreground="White" Text="Editing Errors:" /> <TextBlock UseLayoutRounding="True" Foreground="White" FontWeight="Bold" Text="{Binding DisplayedErrors.Count}" Grid.Column="1" /> </Grid> </DataTemplate> </sdk:ValidationSummary.HeaderTemplate> Thanks in advance!

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  • Prevent deferred creation of controls.

    - by Scott Chamberlain
    Here is a test framework to show what I am doing, just create a new project add a tabbed control, on tab 1 put a button on tab 2 put a check box (default names) and paste this code for its code public partial class Form1 : Form { private List<bool> boolList = new List<bool>(); BindingSource bs = new BindingSource(); public Form1() { InitializeComponent(); boolList.Add(false); bs.DataSource = boolList; checkBox1.DataBindings.Add("Checked", bs, ""); } bool updating = false; private void button1_Click(object sender, EventArgs e) { updating = true; boolList[0] = true; bs.ResetBindings(false); Application.DoEvents(); updating = false; } private void checkBox1_CheckedChanged(object sender, EventArgs e) { if (!updating) MessageBox.Show("CheckChanged fired outside of updating"); } } The issue is if you run the program and look at tab 2 then press the button on tab 1 the program works as expected, however if you press the button on tab 1 then look at tab 2 the event for the checkbox will not fire untill you look at tab 2. The reason for this is the controll on tab 2 is not in the "created" state, so its binding to change the checkbox from unchecked to checked does not happen until after the control has been "Created". checkbox1.CreateControl() does not do anything because according to MSDN CreateControl does not create a control handle if the control's Visible property is false. You can either call the CreateHandle method or access the Handle property to create the control's handle regardless of the control's visibility, but in this case, no window handles are created for the control's children. I tried getting the value of Handle(there is no CreateHandle for Button) but still the same result. Any suggestions other than have the program quickly flash all of my tabs that have data-bound check boxes when it first loads?

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  • How do I change the CellErrorStyle for an Xceed Datagrid?

    - by Bob
    So in the Xceed documentation there is a code example that does not work for me. It may be because my grid is bound to a DataGridCollectionView. The objects in the collection used by the datagridcollection are what implement IDataErrorInfo. The errors are showing up just fine. The problem is that they are using the default orange background for errors...I need a red border. Below is the XAML instantiation of my grid. I set the DataCell background property to red just so I could be sure I had access to the grid's properties... I do. I just can't find the way to identify the cell's w/ errors so I can style them. Thanks! <XceedDG:DataGridControl Grid.Row="1" Grid.ColumnSpan="5" ItemsSource="{Binding Path = ABGDataGridCollectionView, UpdateSourceTrigger=PropertyChanged}" Background="{x:Static Views:DataGridControlBackgroundBrushes.ElementalBlue}" IsDeleteCommandEnabled="True" FontSize="16" AutoCreateColumns="False" x:Name="EncounterDataGrid" AllowDrop="True"> <XceedDG:DataGridControl.View> <Views:TableView ColumnStretchMode="All" ShowRowSelectorPane="True" ColumnStretchMinWidth="100"> <Views:TableView.FixedHeaders> <DataTemplate> <XceedDG:InsertionRow Height="40"/> </DataTemplate> </Views:TableView.FixedHeaders> </Views:TableView> </XceedDG:DataGridControl.View> <!--Group Header formatting--> <XceedDG:DataGridControl.Resources> <Style TargetType="{x:Type XceedDG:GroupByControl}"> <Setter Property="Visibility" Value="Collapsed"/> </Style> <Style TargetType="{x:Type XceedDG:DataCell}"> <Setter Property="Background" Value="Red"/> </Style> </XceedDG:DataGridControl.Resources> ...

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  • Cannot edit values of DataGridView bound to a BindingList

    - by m_oLogin
    Hello community, I have trouble editing a databound bindinglist. Let me illustrate it with the following: Say I have the Person class: public Class Person{ private string m_firstname; private string m_lastname; public string FirstName{get;set;} public string LastName{get;set;} public Person{ ... } } I then have a containing class called Population: public class Population{ private BindingList<Person> m_lstPerson = new BindingList<Person>(); private string m_countryName; public BindingList<Person> ListPerson{get; set;} public string CountryName { get; set; } } I then have on one form a first datagridview with DataSource = m_lstPopulation (BindingList). The binding works like a charm when working with the Population objects. When I double click, it opens up a dialog form showing the object details. One tab in the details holds a datagridview bound to that population's ListPerson. The second datagridview displays fine. However, I cannot edit or add cells in this datagridview. None of the columns is set to read-only. In fact, both datagridview have just about the same parameters. What am I missing? It seems that a lock has been placed on the Population object so that its inner fields cannot be edited... Please advise. Thanks.

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  • Ultrawingrid - how to display #1/1/1800# as blank ( as if null )

    - by Charles Hankey
    Ultrawingrid 9.2 VS2008 .net 3.5 My wingrid uses a bindingsource. All datetimes which are null in SQL Server are delivered to the bindingsource as #1/1/1800# I would like Ultrawingrid to display this date as blank as it would a null from source. Also, if the date is null in the grid ( i.e. blanked out ) I would like to update the data source to the date #1/1/1800# ( the framework takes care of getting that date back into the backend as a null ) This seems like it should be a trivial matter but I can find no documentation on just where to intervene so the grid will see a particular date as a null and save a null as a particular date. This is the direction I've been headed but I don't think either is the right place and I can't even get the syntax to work in the BeforeRowUpdate as I cannot see how to set a value that is passed to the data binding without setting the value of control itself, which I think has to remain null in order to display as blank Private Sub ugPropMaster_BeforeRowUpdate(ByVal sender As Object, ByVal e As _ Infragistics.Win.UltraWinGrid.CancelableRowEventArgs) Handles _ ugPropMaster.BeforeRowUpdate If e.Row.Cells.Item("Exdate").Value Is Nothing Then e.Row.Cells("Exdate").Value = CDate(#1/1/1800#) End If End Sub Private Sub ugPropMaster_InitializeRow(ByVal sender As Object, ByVal e As _ Infragistics.Win.UltraWinGrid.InitializeRowEventArgs) Handles _ ugPropMaster.InitializeRow If CDate(e.Row.Cells.Item("Exdate").Value) = CDate(#1/1/1800#) Then e.Row.Cells.Item("Exdate").Value = Nothing End If End Sub Guidance much appreciated

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  • How to copy x and y coordinate from one Flex component to another

    - by Tam
    Hi, I would like to base one component's x and y cooridnates according to another, I tried using the binding notation but it doesn't seem to work! <?xml version="1.0" encoding="utf-8"?> <s:VGroup xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo" xmlns:vld ="com.lal.validators.*" xmlns:effect="com.lal.effects.*" xmlns:components="com.lal.components.*" width="400" height="100%" right="0" horizontalAlign="right" verticalCenter="0"> ...... <s:VGroup width="125" height="100%" horizontalAlign="right" gap="0" width.normal="153" x.normal="247" width.expanded="199" x.expanded="201"> ...... <s:Panel includeIn="expanded" id="buttonsGroup" mouseOut="changeStateToNormal();" mouseOver="stopChangeToNormal();" skinClass="com.lal.skins.TitlelessPanel" title="hi" right="0" width="125" height="700" > ..... <s:Label text="Jump To Date" paddingTop="20" /> <s:TextInput id="wholeDate" width="100" mouseOver="stopChangeToNormal();" click="date1.visible = true" focusOut="date1.visible = false"/> ... </s:Panel> </s:VGroup> <mx:DateChooser id="date1" change="useDate(event); this.visible = false; " visible="false" mouseOver="stopChangeToNormal();" y="{wholeDate.y}" x="{wholeDate.x}" /> </s:VGroup>

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  • Winforms, databinding, Listbox and textbox

    - by Snake
    Hi dear friends, I have a ListBox (MyListBox) on my screen, and a Textbox (MyTextBox). The ListBox is filled with a List(Of T), which are all custom items. Now I try to do this: The ListBox' datasource is the List(Of T). Now when an Item changes I want the textbox to be updated to a particular property of the selected item in my ListBox. In code this means: Me.MyListBox.DisplayMember = "SelectionName" Me.MyListBox.ValueMember = "Id" MyTextbox.DataBindings.Add(New Binding("Text", Me._listOfItems, "SelectedItem.Comment", True, DataSourceUpdateMode.OnPropertyChanged)) Me.MyListBox.DataSource = Me._listOfItems this does not work. But when I bind to SelectedValue instead of SelectedItem it works perfectly. The _listOfItems is declared as this: Dim _listOfItems As List(Of MyItem) = New List(Of MyItem)() Where MyItem is this: public class MyItem { public string SelectionName { get; set; } public int Id { get; set; } public string Comment { get; set; } } I tried overriding the ToString() in MyItem so that it would use that. But that doesn't work either. Anybody care to give it a try? Thanks! -Snakiej

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  • What features do you miss most when switching from IntelliJ to XCode ?

    - by Ori
    Hi, I've started to use XCode several months ago, after using IntelliJ for several years, and there are quite a few features that I really miss. XCode is not that bad, but it is lacking some basic stuff. To trigger the discussion, here are some of the features that I miss most, who knows maybe someone from Apple will bump into this post and steal some Ideas :) Source-level error-highlighting. The write-compile-fix cycle feels like going back in time 15 years ago to my early C days. Many errors can be spotted without having to compile and Java IDEs have been doing it for years. A decent debugger. This is a bit unfair because IntelliJ's debugger is the best I've used so far, but XCode's debugger is at least 5 years behind and Apple has a few more developers than JetBrains... Stronger re-factoring. A no-brainer I guess. XCode has some renaming capabilities (which they call re-factoring), but they are very few. Override method. This one is really amazing. XCode doesn't have an "override method" command which lets you choose the method you want to override from a super class or protocol. You need to go to the documentation or header file and start copy-pasting. Duplicate selected line(s). I've bumped into some posts that offer workarounds for this via custom key-binding, but none of them works, at least for me. Go to last edit point. Bummer! Come on Apple, this one is so easy to implement and so useful! A better open quickly feature. IntelliJ's quick find of classes/files/text is so much better... Turns out that my list goes on and on, so I'll stop here... What other features do you miss most in your transition to XCode?? Ori

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  • DataTable won't DataBind with a DataTable.NewRow()

    - by David
    Is DataRow.NewRow() insufficient as the only row in a DataTable? I would expect this to work, but it doesn't. It's near the end of my Page_Load inside my If(!Postback) block. gridCPCP is GridView DataTable dt = new DataTable(); dt.Columns.Add("ID", int.MinValue.GetType()); dt.Columns.Add("Code", string.Empty.GetType()); dt.Columns.Add("Date", DateTime.MinValue.GetType()); dt.Columns.Add("Date2", DateTime.MinValue.GetType()); dt.Columns.Add("Filename", string.Empty.GetType()); //code to add rows if (dt.Rows.Count > 0) { gridCPCP.DataSource = dt; gridCPCP.DataBind(); } else { dt.Rows.Add(dt.NewRow()); gridCPCP.DataSource = dt; gridCPCP.DataBind(); //EXCEPTION int TotalColumns = gridCPCP.Rows[0].Cells.Count; gridCPCP.Rows[0].Cells.Clear(); gridCPCP.Rows[0].Cells.Add(new TableCell()); gridCPCP.Rows[0].Cells[0].ColumnSpan = TotalColumns; gridCPCP.Rows[0].Cells[0].Text = "No Record Found"; } The exception throws on gridCPCP.DataBind() and only when execution reaches the else block. If there were rows added above via dt.Rows.Add(new object[] { ... } binding works. System.ArgumentOutOfRangeException: Length cannot be less than zero. Parameter name: length

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  • reading csv files in scipy/numpy in Python

    - by user248237
    I am having trouble reading a csv file, delimited by tabs, in python. I use the following function: def csv2array(filename, skiprows=0, delimiter='\t', raw_header=False, missing=None, with_header=True): """ Parse a file name into an array. Return the array and additional header lines. By default, parse the header lines into dictionaries, assuming the parameters are numeric, using 'parse_header'. """ f = open(filename, 'r') skipped_rows = [] for n in range(skiprows): header_line = f.readline().strip() if raw_header: skipped_rows.append(header_line) else: skipped_rows.append(parse_header(header_line)) f.close() if missing: data = genfromtxt(filename, dtype=None, names=with_header, deletechars='', skiprows=skiprows, missing=missing) else: if delimiter != '\t': data = genfromtxt(filename, dtype=None, names=with_header, delimiter=delimiter, deletechars='', skiprows=skiprows) else: data = genfromtxt(filename, dtype=None, names=with_header, deletechars='', skiprows=skiprows) if data.ndim == 0: data = array([data.item()]) return (data, skipped_rows) the problem is that genfromtxt complains about my files, e.g. with the error: Line #27100 (got 12 columns instead of 16) I am not sure where these errors come from. Any ideas? Here's an example file that causes the problem: #Gene 120-1 120-3 120-4 30-1 30-3 30-4 C-1 C-2 C-5 genesymbol genedesc ENSMUSG00000000001 7.32 9.5 7.76 7.24 11.35 8.83 6.67 11.35 7.12 Gnai3 guanine nucleotide binding protein alpha ENSMUSG00000000003 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Pbsn probasin Is there a better way to write a generic csv2array function? thanks.

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  • ASP.net drop down dynamically styling and then remembering the styles on aborted submit

    - by peacedog
    So, I've got an ASP drop down list (this is .net 2.0). I'm binding it with data. Basically, when the page loads and it's not a post back we'll fetch record data, bind all the drop downs, and set them to their appropriate values (strictly speaking we: initialize page with basic set of data from DB, bind drop downs from DB, fetch actual record data from DB, set drown downs to appropriate settings at this time). What I want to do is selectively style the list options. So the database returns 3 items: ID, Text, and a flag indicating whether I the record is "active" (and I'll style appropriately). It's easy enough to do and I've done it. My problem is what happens when a form submission is halted. We have slightly extended the Page class and created an AddError() method, which will create a list of errors from failed business rule checks and then display them in a ValidationSummary. It works something like this, in the submit button's click event: CheckBizRules(); if(Page.IsValid) { SaveData(); } If any business rule check fails, the Page will not be valid. The problem is, when the page re-renders (viewsate is enabled, but no data is rebound) my beautiful conditional styling is now sadly gone, off to live in the land of the missing socks. I need to preserve it. I was hoping to avoid another DB call here (e.g. getting the list data back from the DB again if the page isn't valid, just for purposes of re-styling the list). But it's not the end of the world if that's my course of action. I was hoping someone might have an alternative suggestion. I couldn't think of how to phrase this question better, if anyone has any suggestions or needs clarification don't hesitate to get it, by force if need be. ;)

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  • WCF service returns error 500 on /js request

    - by Cine
    I have a wcf service that randomly begins to fail when requesting the autogenerated javascript that wcf supports making. But I have no luck tracking down why. The js thing is part of the wcf featureset, so I dont know how it can suddenly begin to fail and be unable to work until IIS is recycled. The http log gives me: 2010-06-10 09:11:49 W3SVC2095255988 myip GET /path/myservice.svc/js _=1276161113900 80 - ip browser 500 0 0 So its an error 500, and that is about the only thing I can figure out. The event log contains no information. Requests to /path/myservice.svc works just fine. After recycling IIS it works again, and some days later it begins to fail until I recycle IIS. <service name="path.myservice" behaviorConfiguration="b"> <endpoint address="" behaviorConfiguration="eb" binding="webHttpBinding" contract="path.Imyservice" /> </service> ... <endpointBehaviors> <behavior name="eb"> <enableWebScript /> </behavior> </endpointBehaviors> <serviceBehaviors> <behavior name="b"> <dataContractSerializer maxItemsInObjectGraph="2147483647" /> <serviceMetadata httpGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="true" /> </behavior> </serviceBehaviors> I dont see any problems in the web.config settings either. Any clues how I can track down what the problem is?

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  • C# Delegate under the hood question.

    - by Ted
    Hi Guys I was doing some digging around into delegate variance after reading the following tquestion in SO. "delegate-createdelegate-and-generics-error-binding-to-target-method" (sorry not allowed to post more than one hyperlink as a newbie here!) I found a very nice bit of code from Barry kelly at https://www.blogger.com/comment.g?blogID=8184237816669520763&postID=2109708553230166434 Here it is (in a sugared-up form :-) using System; namespace ConsoleApplication4 { internal class Base { } internal class Derived : Base { } internal delegate void baseClassDelegate(Base b); internal delegate void derivedClassDelegate(Derived d); internal class App { private static void Foo1(Base b) { Console.WriteLine("Foo 1"); } private static void Foo2(Derived b) { Console.WriteLine("Foo 2"); } private static T CastDelegate<T>(Delegate src) where T : class { return (T) (object) Delegate.CreateDelegate( typeof (T), src.Target, src.Method, true); // throw on fail } private static void Main() { baseClassDelegate a = Foo1; // works fine derivedClassDelegate b = Foo2; // works fine b = a.Invoke; // the easy way to assign delegate using variance, adds layer of indirection though b(new Derived()); b = CastDelegate<derivedClassDelegate>(a); // the hard way, avoids indirection b(new Derived()); } } } I understand all of it except this one (what looks very simple) line. b = a.Invoke; // the easy way to assign delegate using variance, adds layer of indirection though Can anyone tell me: how it is possible to call invoke without passing the param required by the static function. When is going on under the hood when you assign the return value from calling invoke What does Barry mean by extra indirection (in his comment)

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  • gridview commandargument on buttonfield pagination used

    - by ClareBear
    Hello all, I am using c#.net I have a gridview which needs to contain a 'Use' button (appointmentId set as the commandargument). Source Code <asp:GridView ID="resultsReturned" runat="server" AllowPaging="True" AutoGenerateColumns="False" EnableSortingAndPagingCallbacks="True" OnPageIndexChanged="resultsReturned_PageIndexChanged" onrowcommand="resultsReturned_RowCommand"> <Columns> <asp:BoundField DataField="UserAppointmentId" HeaderText="App ID" /> <asp:BoundField DataField="UserBookingName" HeaderText="Booking Name" /> <asp:TemplateField> <ItemTemplate> <asp:Button runat="server" ID="UseButton" Text="Use" CommandName="Use" CommandArgument="UserAppointmentId" /> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> Code-Behind protected void resultsReturned_RowCommand(object sender, GridViewCommandEventArgs e) { if (e.CommandName == "Use") { correctAppointmentID.Value = (e.CommandArgument.ToString()); } } This is used for the pagination: private void BindAppointments() { var results = appointmentRepos.GetBookingIdBySearchCriteria(catgoryid, resultsReturned.PageIndex * resultsReturned.PageSize, -1); resultsReturned.DataSource = results; resultsReturned.DataBind(); } I am binding the appointments to the gridview within the PageLoad/search_Click This is the error I am receiving: Callbacks are not supported on TemplateField because some controls cannot update properly in a callback. Turn callbacks off on 'resultsReturned'. Thanks in advance for any help Clare

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  • How to secure login and member area with SSL certificate?

    - by citronas
    Background: I have a asp.net webapplication project that should contain a public and a member area. Now I want to implement a SSL decription to secure communication between the client and the server. (In the university we have a unsecured wireless network and you can use a wlan sniffer to read username/password. I do not want to have this security problem for my application, so I thought of a ssl decription) The application is running on a IIS 7.5. It it possible to have one webapp that has unsecured pages (like the public area) and a secured area (like the member area, which requires a login)? If yes, how can I relealise the communication between these too areas? Example: My webapp is hosted on http://foo.abc. I have pages like http://foo.abc/default.aspx and http://foo.abc/foo.aspx. In the same project is page like /member/default.aspx which is protected by a login on the page http://foo.abc/login.aspx. So I would need to implement SSL for the page /login.aspx and all pages in /member/ How can I do that? I just found out how to create SSL certificates in IIS 7.5 and how to add such a binding to a webapp. How how can I tell my webapp which page should be called with https and not with http. What is the best practise there?

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  • How do I stop ValueConverters from firing when swapping the content of a ContentControl

    - by DanM
    I thought what I was doing was right out of the Josh Smith MVVM handbook, but I seem to be having a lot of problems with value converters firing when no data in the view-model has changed. So, I have a ContentControl defined in XAML like this: <ContentControl Grid.Row="0" Content="{Binding CurrentViewModel}" /> The Window containing this ContentControl references a resource dictionary that looks something like this: <ResourceDictionary ...> <DataTemplate DataType="{x:Type lib_vm:SetupPanelViewModel}"> <lib_v:SetupPanel /> </DataTemplate> <DataTemplate DataType="{x:Type lib_vm:InstructionsPanelViewModel}"> <lib_v:InstructionsPanel /> </DataTemplate> </ResourceDictionary> So, basically, the two data templates specify which view to show with which view-model. This switches the views as expected whenever the CurrentViewModel property on my window's view-model changes, but it also seems to cause value converters on the views to fire even when no data has changed. It's a particular problem with IMultiValueConverter classes, because the values in the value array get set to DependencyProperty.UnsetValue, which causes exceptions unless I specifically check for that. But I'm getting other weird side effects too. This has me wondering if I shouldn't just do everything manually, like this: Instantiate each view. Set the DataContext of each view to the appropriate view-model. Give the ContentControl a name and make it public. Handle the PropertyChanged event for the window. In the event handler, manually set the Content property of the ContentControl to the appropriate view, based the CurrentViewModel (using if statements). This seems to work, but it also seems very inelegant. I'm hoping there's a better way. Could you please advise me the best way to handle view switching so that value converters don't fire unnecessarily?

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  • What is the best way to deserialize generics written with a different version of a signed assembly?

    - by Rick Minerich
    In other cases it has been suggested that you simply add a SerializationBinder which removes the version from the assembly type. However, when using generic collections of a type found in a signed assembly, that type is strictly versioned based on its assembly. Here is what I've found works. internal class WeaklyNamedAssemblyBinder : SerializationBinder { public override Type BindToType(string assemblyName, string typeName) { ResolveEventHandler handler = new ResolveEventHandler(CurrentDomain_AssemblyResolve); AppDomain.CurrentDomain.AssemblyResolve += handler; Type returnedType; try { AssemblyName asmName = new AssemblyName(assemblyName); var assembly = Assembly.Load(asmName); returnedType = assembly.GetType(typeName); } catch { returnedType = null; } finally { AppDomain.CurrentDomain.AssemblyResolve -= handler; } return returnedType; } Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args) { string truncatedAssemblyName = args.Name.Split(',')[0]; Assembly assembly = Assembly.Load(truncatedAssemblyName); return assembly; } } However, causing the binding process to change globally seems rather dangerous to me. Strange things could happen if serialization was happening in multiple threads. Perhaps a better solution is to do some regex manipulation of the typeName? What do you think?

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  • How to bind "rest" variables to list of values in macro in Scheme

    - by Slartibartfast
    I want to make a helper macro for writing match-extensions. I have something like this: (define-match-expander my-expander (? (stx) (let* ([dat (cdr (syntax-e stx))] [var1 (car dat))] [var2 (cadr dat)]) ;transformer goes here ))) So I wanted a macro that will do this let binding. I've started with something like this: (define-syntax-rule (define-my-expander (id vars ...) body) (define-match-expander id (? (stx) (match-let ([(vars ...) (cdr (syntax-e stx))]) body)))) but match-let isn't defined in transformation time. First question would be is there any other way of doing this (making this expanders, I mean)? Maybe there is already something similar in plt-scheme that I'm not aware of, or I'm doing it wrong in some way. Regardless of answer on the first question, if I ever want to bound list of variables to list of values inside of a macro, how should I do it? EDIT: In combination with Eli's answer macro now looks like this: (define-syntax-rule (define-my-expander (id vars ...) body) (define-match-expander id (? (stx) (syntax-case stx () [(_ vars ...) body]))))

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