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  • How to preserve sibling element position when one sibling is absolutely positioned?

    - by Casey
    In the snippet below, the child div is normally positioned until it is :hovered , when it becomes absolutely positioned. The reasoning behind this markup is to simulate a popup style in a limited environment where I can't use a <select> (among other limitations). When child is hovered, the sibling elements jump around, which is expected, as the contents of the block have changed. But how can I preserve their positioning? That is, what CSS can I add to prevent the siblings from jumping around when child is hovered. Javascript is also not allowed, so please no answers using JS. HTML: <div class="container"> <div class="child"> <span class="d4"></span> <label><input type="radio" name="radio" value="1"/>One</label> <label><input type="radio" name="radio" value="2"/>Two</label> </div> <input type="text" name="sibling"/> <button name="sibling2">Button</button> </div> CSS: .container, .child, button { display:inline-block; } .child { vertical-align: middle; width: 35px; height: 35px; } .child:hover { background: gray; position:absolute; width: 100px; height: auto; } .child:hover > .d4 { display: none; } .child label { display:none; } .child:hover label { display: inline-block; } .d4 { background-position: -411px -1px; width: 35px; height: 35px; background-image: url("https://i.imgur.com/zkgyBOi.png"); background-repeat: no-repeat; color: transparent; display: inline-block; } Here's a fiddle: http://jsfiddle.net/cpctZ/1/

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  • Binding to two values

    - by developer
    Hi All, Is it possible to bind a label content to two values. For eg, I want a single label whose content is displayed as below, UserName= Firstname, Lastname where Firstname and Lastname, both are values from database. If I would be using to labels I would bind as Content={Binding Firstname} for one and Content={Binding Lastname} for another. But I want a single label to display both. Is it possible?

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  • Django forms: how to dynamically create ModelChoiceField labels

    - by Henri
    I would like to create dynamic labels for a forms.ModelChoiceField and I'm wondering how to do that. I have the following form class: class ProfileForm(forms.ModelForm): def __init__(self, data=None, ..., language_code='en', family_name_label='Family name', horoscope_label='Horoscope type', *args, **kwargs): super(ProfileForm, self).__init__(data, *args, **kwargs) self.fields['family_name'].label = family_name_label . . self.fields['horoscope'].label = horoscope_label self.fields['horoscope'].queryset = Horoscope.objects.all() class Meta: model = Profile family_name = forms.CharField(widget=forms.TextInput(attrs={'size':'80', 'class': 'contact_form'})) . . horoscope = forms.ModelChoiceField(queryset = Horoscope.objects.none(), widget=forms.RadioSelect(), empty_label=None) The default labels are defined by the unicode function specified in the Profile definition. However the labels for the radio buttons created by the ModelChoiceField need to be created dynamically. First I thought I could simply override ModelChoiceField as described in the Django documentation. But that creates static labels. It allows you to define any label but once the choice is made, that choice is fixed. So I think I need to adapt add something to init like: class ProfileForm(forms.ModelForm): def __init__(self, data=None, ..., language_code='en', family_name_label='Family name', horoscope_label='Horoscope type', *args, **kwargs): super(ProfileForm, self).__init__(data, *args, **kwargs) self.fields['family_name'].label = family_name_label . . self.fields['horoscope'].label = horoscope_label self.fields['horoscope'].queryset = Horoscope.objects.all() self.fields['horoscope'].<WHAT>??? = ??? Anyone having any idea how to handle this? Any help would be appreciated very much.

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  • java gui changing picture causes heapspace error

    - by pie154
    I have a java programme than when a button is clicked it updates the image on screen to the according image. this will work for the first 15 or so clicks then it causes a java heapspace error. I think it is because of the way I am updating the jpanel that contains the bufferedimage but not sure what the reason is. My code to get make the JPanel contain the new image is, public class extraScreenPanel { static JPanel screenPanel = new JPanel(new BorderLayout()); public static JPanel extraScreenPanel(int dispNum) { JLabel label = new JLabel("" + dispNum + ""); label.setPreferredSize(new Dimension(800, 600)); //label.setUI( new VerticalLabelUI(true) ); label.setVerticalAlignment( SwingConstants.TOP ); screenPanel = imgDisp(dispNum); label.setForeground(Color.white); label.setFont(new Font("Serif", Font.BOLD, 200)); screenPanel.add(label, BorderLayout.PAGE_END ); return screenPanel; } public static JPanel imgDisp(int picNum) { /* String url[] = new String[5000]; String part1; url[0] = "C:/PiPhotoPic/pic16.jpg"; for(Integer i=1;i<5000;i++){ if(i<10){part1 = "C:/temp/new0000000";} else if(i<100){part1 = "C:/temp/new000000";} else if(i<1000){part1 = "C:/temp/new00000";} else {part1 = "C:/temp/new00000";} String num = Integer.toString(i); url[i]= part1 + num + ".jpg"; } if(picNum<0){picNum=0;} String ref = url[picNum];*/ //this code is just to get specific ref for image location BufferedImage loadImg = loadImage(ref); JImagePanel panel = new JImagePanel(loadImg, 0, 0); panel.setPreferredSize(new Dimension(800, 600)); return panel; } public static class JImagePanel extends JPanel{ private BufferedImage image; int x, y; public JImagePanel(BufferedImage image, int x, int y) { super(); this.image = image; this.x = x; this.y = y; } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); g.drawImage(image, x, y, null); } } public static BufferedImage loadImage(String ref) { BufferedImage bimg = null; try { bimg = javax.imageio.ImageIO.read(new File(ref)); } catch (Exception e) { e.printStackTrace(); } BufferedImage bimg2 = resize(bimg,800,600); return bimg2; } public static BufferedImage resize(BufferedImage img, int newW, int newH) { int w = img.getWidth(); int h = img.getHeight(); BufferedImage dimg = dimg = new BufferedImage(newW, newH, img.getType()); Graphics2D g = dimg.createGraphics(); g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); g.drawImage(img, 0, 0, newW, newH, 0, 0, w, h, null); g.dispose(); return dimg; } } And the code that updates my gui is, it works by removing the panel from its containg panel and then readding it to it. picPanel = imgDisp.imgDisp(num); repaintPicPanel(); public static void repaintPicPanel() { picPanel.removeAll(); menuPanel.remove(picPanel);; menuPanel.add(picPanel, BorderLayout.LINE_START); }

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  • When I really need to use [NSThread sleepForTimeInterval:1];

    - by Timbo
    Hi there, I have a program that needs to use sleep. Like really needs to. In lieu of spending ages explaining why, suffice to say that it needs it. Now I'm told to split off my code into a separate thread if it requires sleep so I don't lose interface responsiveness, so I've started learning how to use NSThread. I've created a brand new program that is conceptual so to solve the issue for this example will help me in my real program. Short story is I have a class, it has instance variables and I need a loop with a sleep to be depended on the value of that instance variable. Here's what I've put together anyway, your help is very much appreciated :) Cheers Tim /// Start Test1ViewController.h /// #import <UIKit/UIKit.h> @interface Test1ViewController : UIViewController { UILabel* label; } @property (assign) IBOutlet UILabel *label; @end /// End Test1ViewController.h /// /// Start Test1ViewController.m /// #import "Test1ViewController.h" #import "MyClass.h" @implementation Test1ViewController @synthesize label; - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; label.text = @"1"; [NSThread detachNewThreadSelector:@selector(backgroundProcess) toTarget:self withObject:nil]; } - (void)backgroundProcess { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // Create an instance of a class that will eventually store a whole load of variables MyClass *aMyClassInstance = [MyClass new]; [aMyClassInstance createMyClassInstance:(@"Timbo")]; while (aMyClassInstance.myVariable--) { NSLog(@"blah = %i",aMyClassInstance.myVariable); label.text = [NSString stringWithFormat:@"blah = %d", aMyClassInstance.myVariable]; //how do I pass the new value out to the updateLabel method, or reference aMyClassInstance.myVariable? [self performSelectorOnMainThread:@selector(updateLabel) withObject:nil waitUntilDone:NO]; //the sleeping of the thread is absolutely mandatory and must be worked around. The whole point of using NSThread is so I can have sleeps [NSThread sleepForTimeInterval:1]; } [pool release]; } - (void)updateLabel {label.text = [NSString stringWithFormat:@"blah = %d", aMyClassInstance.myVariable]; // be nice if i could } - (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning];} - (void)viewDidUnload {} - (void)dealloc {[super dealloc];} @end /// End Test1ViewController.m /// /// Start MyClass.h /// #import <Foundation/Foundation.h> @interface MyClass : NSObject { NSString* name; int myVariable; } @property int myVariable; @property (assign) NSString *name; - (void) createMyClassInstance: (NSString*)withName; - (int) changeVariable: (int)toAmount; @end /// End MyClass.h /// /// Start MyClass.h /// #import "MyClass.h" @implementation MyClass @synthesize name, myVariable; - (void) createMyClassInstance: (NSString*)withName{ name = withName; myVariable = 10; } - (int) changeVariable: (int)toAmount{ myVariable = toAmount; return toAmount; } @end /// End MyClass.h ///

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  • Can you set a gradient brush for a listboxitem background in silverlight?

    - by Michael
    I am looking for a way to set a gradientbrush as the background for a listbox item. I have a DataTemplate defined and have specified a gradient brush but it always appears as the listbox background (i.e. it never shows as a gradient brush). I have been able to set the background of the listbox itself, and I can set the listboxitem's background to a standard color using the "setter" object....but none of these are what I am after. I really want the background on each list item to be a gradient brush. Below is the datatemplate that I have constructed. <ListBox Name="MyListBox" Margin="12,67,12,169"> <ListBox.ItemTemplate> <DataTemplate> <Grid Height="51" VerticalAlignment="Bottom"> <Grid.Background> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FFC9F4D0"/> <GradientStop Color="#FF2AC12A" Offset="0.333"/> <GradientStop Color="#FF35DE35" Offset="1"/> </LinearGradientBrush> </Grid.Background> <Canvas > <dataInput:Label Width="227" Foreground="Yellow" Canvas.Left="158" Canvas.Top="8" Content="{Binding Place}"/> <dataInput:Label Width="146" Foreground="Yellow" Canvas.Left="8" Canvas.Top="8" Content="{Binding Date}"/> <dataInput:Label Content="{Binding People}" Width="346" FontSize="9.333" Foreground="Black" Canvas.Left="166" Canvas.Top="28"/> <!-- <dataInput:Label Width="45" Content="Accept" Foreground="White" Canvas.Left="8" Canvas.Top="28"/> <dataInput:Label Width="45" Content="Decline" Foreground="White" Canvas.Left="57" Canvas.Top="28"/> --> <dataInput:Label Content="SomeText" Width="101" FontSize="9.333" Foreground="White" Canvas.Left="389" Canvas.Top="10"/> <Image Height="21" Width="21" Canvas.Left="500" Canvas.Top="8" Source="Green Button.png"/> </Canvas> </Grid> </DataTemplate> </ListBox.ItemTemplate> </ListBox> Any Thoughts?

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  • how to get mxml file in ActionScript class

    - by nemade-vipin
    hello friend I want to refer my mxml file into Actionscript class.My code is :- Mxml file is :- var User:Authentication; User = new Authentication(); User.authentication(); } ]] <mx:Panel width="100%" height="100%" layout="absolute"> <mx:TabNavigator width="100%" height="100%" id="viewstack2"> <mx:Form label="Login Form" id="loginform"> <mx:FormItem label="Mobile no:" creationPolicy="all"> <mx:TextInput id="mobileno"/> </mx:FormItem> <mx:FormItem label="Password:" creationPolicy="all"> <mx:TextInput displayAsPassword="true" id="password" /> </mx:FormItem> <mx:FormItem> <mx:Button label="Login" click="authentication()"/> </mx:FormItem> </mx:Form> <mx:Form label="Child List"> <mx:Label width="100%" color="blue" text="Select Child."/> </mx:Form> </mx:TabNavigator> </mx:Panel> Action script class is package SBTSBusineesObject { import generated.webservices.*; import mx.collections.ArrayCollection; import mx.controls.Alert; import mx.rpc.events.FaultEvent; public class Authentication { [Bindable] private var childName:ArrayCollection; [Bindable] private var childId:ArrayCollection; private var photoFeed:ArrayCollection; private var arrayOfchild:Array; private var newEntry:GetSBTSMobileAuthentication; public var user:SBTSWebService; public var mxmlobj:SBTS =null; public function authentication():void { user = new SBTSWebService(); mxmlobj = new SBTS(); if(user!=null) { user.addSBTSWebServiceFaultEventListener(handleFaults); user.addgetSBTSMobileAuthenticationEventListener(authenticationResult); newEntry = new GetSBTSMobileAuthentication(); if(newEntry!=null) { if(mxmlobj != null) { newEntry.mobile = mxmlobj.mobileno.text ; newEntry.password=mxmlobj.password.text; } user.getSBTSMobileAuthentication(newEntry); } } } public function handleFaults(event:FaultEvent):void { Alert.show("A fault occured contacting the server. Fault message is: " + event.fault.faultString); } public function authenticationResult(event:GetSBTSMobileAuthenticationResultEvent):void { if(event.result != null && event.result._return>0) { if(event.result._return > 0) { var UserId:int = event.result._return; if(mxmlobj != null) { mxmlobj.loginform.enabled = false; mxmlobj.viewstack2.selectedIndex=1; } } else { Alert.show("Authentication fail"); } } } } }

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  • WPF DataGridRow Template - how to achieve Selected event

    - by user1809972
    I would like to override the DataGridRow template depending on the datatype of object bound to the grid. If the type is label, it just shows a Label. Otehrwise, it shows the cells. Follwing is the xaml. <DataTrigger Binding="{Binding Path=IsLabel, UpdateSourceTrigger=PropertyChanged}" Value="True"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type DataGridRow}"> <Grid> <Label HorizontalAlignment="Center" Padding="3,3,3,3" FontWeight="Bold" Content="{Binding Id}"/> </Grid> </ControlTemplate> </Setter.Value> </Setter> </DataTrigger> The grid looks ok. But, when the Label is clicked, it doesnt raise the Selection changed event for the DataGridRow. How do I achieve this behaviour? This label should just behave as any other DataGridRow(with the default template). Thanks

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  • Multiple checkbox values search javascript

    - by JV10
    I have a list of keywords, and I've created a checkbox for each. My template has a form wrapping the content, so I can't have a nested form around the checkbox list. How can I send the selected checkbox values to my search results page? The form that wraps the content doesn't have any actions or methods applied: <form id="BoostMasterForm" runat="server"> This the HTML markup of my checkbox list: <div class="checkboxes"> <ul> <li> <input type="checkbox" name="search" class="options" value="one"> <label>one</label> </li> <li> <input type="checkbox" name="search" class="options" value="two"> <label>two</label> </li> <li> <input type="checkbox" name="search" class="options" value="three"> <label>three</label> </li> </ul> <input type="submit" value="Submit"/> </div> How can I use javascript or jQuery to submit the values of the multiple checkbox selections and on submit action them to the following URL: '/imagery/image-search.aspx' The resulting URL for a search where option 1 and 3 are submitted should be: '/imagery/image-search.aspx?search=one%20three' I'm using this javascript that I found on another post, however I need it to append the form an the action and the method. My website is ASP, where this post is for a PHP site: Sending multiple checkbox options $('.options').click(function() { var selectedItems = new Array(); $(".checkboxes input:checkbox[name=search]:checked").each(function() {selectedItems.push($(this).val());}); var data = selectedItems.join('|'); $("#opts").val(data); }); If anyone can help, it'd be greatly appreciated. Cheers, JV

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  • What's wrong with this code? Values not saved to db

    - by Scott B
    Been trying to get this code to work for several days now to no avail. I'm at wits end. I've managed, with the code below, to create a customized category picker widget that appears on the PAGE editor. However, for the life of me, I cannot get the checked categories to save. function my_post_options_box() { if ( function_exists('add_meta_box') ) { //add_meta_box( $id, $title, $callback, $page, $context, $priority ); add_meta_box('categorydiv', __('Page Options'), 'post_categories_meta_box_modified', 'page', 'side', 'core'); } } //adds the custom categories box function post_categories_meta_box_modified($post) { $noindexCat = get_cat_ID('noindex'); $nofollowCat = get_cat_ID('nofollow'); if(in_category("noindex")){ $noindexChecked = " checked='checked'";} else {$noindexChecked = "";} if(in_category("nofollow")){ $nofollowChecked = " checked='checked'";} else {$noindexChecked = "";} ?> <div id="categories-all" class="ui-tabs-panel"> <ul id="categorychecklist" class="list:category categorychecklist form-no-clear"> <li id='category-<?php echo $noindexCat ?>' class="popular-category"><label class="selectit"><input value="<?php echo $noindexCat ?>" type="checkbox" name="post_category[]" id="in-category-<?php echo $noindexCat ?>"<?php echo $noindexChecked ?> /> noindex</label></li> <li id='category-<?php echo $nofollowCat ?>' class="popular-category"><label class="selectit"><input value="<?php echo $noindexCat ?>" type="checkbox" name="post_category[]" id="in-category-<?php echo $nofollowCat ?>"<?php echo $nofollowChecked ?> /> nofollow</label></li> <li id='category-1' class="popular-category"><label class="selectit"><input value="1" type="checkbox" name="post_category[]" id="in-category-1" checked="checked"/> Uncategorized</label></li> </ul> </div> <?php }

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  • using CSS to center FLOATED input elements wrapped in a DIV

    - by Tim
    There's no shortage of questions and answers about centering but I've not been able to get it to work given my specific circumstances, which involve floating. I want to center a container DIV that contains three floated input elements (split-button, text, checkbox), so that when my page is resized wider, they go from this: ||.....[ ][v] [ ] [ ] label .....|| to this ||......................[ ][v] [ ] [ ] label.......................|| They float fine, but when the page is made wider, they stay to the left: ||.....[ ][v] [ ] [ ] label .......................................|| If I remove the float so that the input elements are stacked rather than side-by-side: [ ][v] [ ] [ ] label then they DO center correctly when the page is resized. SO it is the float being applied to the elements of the DIV#hbox inside the container that is messing up the centering. Is what I want to do impossible because of the way float is designed to work? Here is my DOCTYPE, and the markup does validate at w3c: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> Here is my markup: <div id="term1-container"> <div class="hbox"> <div> <button id="operator1" class="operator-split-button">equals</button> <button id="operator1drop">show all operators</button> </div> <div><input type="text" id="term1"></input></div> <div><input type="checkbox" id="meta2"></input><label for="meta2" class="tinylabel">meta</label></div> </div> </div> And here's the (not-working) CSS: #term1-container {text-align: center} .hbox {margin: 0 auto;} .hbox div {float:left; } I have also tried applying display: inline-block to the floated button, text-input, and checkbox; and even though I think it applies only to text, I've also tried applying white-space: nowrap to the #term1-container DIV, based on posts I've seen here on SO. And just to be a little more complete, here's the jQuery that creates the split-button: $(".operator-split-button").button().click( function() { alert( "foo" ); }).next().button( { text: false, icons: { primary: "ui-icon-triangle-1-s" } }).click( function(){positionOperatorsMenu();} ) })

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  • jQuery .each or search function, how can I make use of those?

    - by Noor
    I have a ul list, with 10 items, and I have a label that displays the selected li text. When I click a button, I need to check the label, versus all the list items to find the matching one, when it finds that I need to assign the corresponding number. I.e. list: Messi Cristiano Zlatan hidden values of list items: www.messi.com www.cronaldo.com www.ibra.com label: Zlatan script (thought)procces: get label text, search list for matching string, get the value of that string. (and if someone could point me in a direction to learn these basic(?) stuff. tried to be as specific as possible, thanks guys!

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  • Floated DIVs not flowing properly

    - by NightMICU
    Hi everyone, I am working on a photo gallery, each thumbnail is in its own DIV and floated to the left in a containing DIV. It has been displaying properly up until vertical thumbnails entered the equation. Now, when the next row should start, the first item of the following row is to the left of the last vertical DIV (thumbnail), rather than flush to the left of the containing DIV. Here is the CSS: #galleryBox { width: 650px; background: #fff; margin: auto; padding: 10px; text-align: center; overflow: auto; } .item { display: block; margin: 10px; padding: 20px 5px 5px 5px; float: left; background: url('/images/content_bottom.png') repeat-x scroll bottom #828282; } and the HTML: <div id="galleryBox" class="ui-corner-all"> <div id="file" class="ui-corner-all"> <form name="uploadPhoto" id="uploadPhoto" method="post" action="" enctype="multipart/form-data"> <p><label for="photo">Photo:</label><input type="file" name="photo" id="photo"/></p> <p><label for="caption">Caption: <small>Optional</small></label><input type="text" id="caption" name="caption"/></p> <p align="center"><input type="submit" value="Upload" name="send" id="send" class="addButton ui-state-default ui-corner-all"/></p> </form> <a name="thumbs"></a> </div> <div class="item ui-corner-all"> <a href="http://tapp-essexvfd.org/gallery/photos/201004211802.jpg" class="lightbox" title="test1"> <img src="http://tapp-essexvfd.org/gallery/photos/thumbs/201004211802_thumb.jpg" alt="test1"/></a><br/> <p><span class="label">test1</span></p> </div> <div class="item ui-corner-all"> <a href="http://tapp-essexvfd.org/gallery/photos/201004211803.jpg" class="lightbox" title="test3"> <img src="http://tapp-essexvfd.org/gallery/photos/thumbs/201004211803_thumb.jpg" alt="test3"/></a><br/> <p><span class="label">test3</span></p> </div> </div>

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  • Prevent Carousel scroll within scrollable Container (Sencha 2)?

    - by TragedyStruck
    I've got a Container with a header, content (Carousel) and a footer. The Container itself is therefor scrollable (vertical) to be able to scroll down to the footer. The Carousel can be swiped horizontally to change active item. I want to lock it to do only two thing: If starting to move vertically, only scroll Container If starting to move horizontally, only scroll Carousel If you now grab the Carousel you are able to scroll both ways at the same time. Example code: Ext.define('MyApp.view.MyContainer', { extend: 'Ext.Container', config: { scrollable: true, items: [ { xtype: 'container', items: [ { xtype: 'label', html: 'abc' } ] }, { xtype: 'carousel', height: 200, scrollable: false, items: [ { xtype: 'label', html: 'x' }, { xtype: 'label', html: 'y<br/>y<br/>y<br/>y<br/>y<br/>y<br/>y<br/>y' } ] }, { xtype: 'container', items: [ { xtype: 'label', html: 'def' } ] } ] } }); Using Sencha Touch 2.

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  • Using Jquery and Ajax in ASP.NET

    - by xkcd
    I am using ajax and jquery to load contents into a div. My jquery looks like this $("a.trigger").click(function() { $.ajax({ type: "POST", url: "GetStuff.aspx", data: "id=0", success: function(response){ $("#contentDiv").html(response); } }); }); In GetStuff.aspx I would like to write some asp.net html controls like private void Page_Load(object sender, System.EventArgs e) { Response.Expires = -1; Response.ContentType = "text/plain"; Response.Write("<asp:Label id=\"label1\" runat=\"server\" text=\"helloworld\"/>"); Response.End(); } However the label does not appear on the page. I tried to put the asp:Label in my aspx file like this <%@ Page Language="C#" Inherits="Untitled.GetStuff" %> <asp:Label id="label12" runat="server" text="helloworld2"/> It also does not work. How can I get asp.net html controls to show up?

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  • submit form problem

    - by basma
    hi I have a problem with "all" of my form submition "search form, login form, regester form,.." the problem shows when I submit the form it doesnt take me to the action page, insted it tack me to my root page :"http://localhost/project/Home/" this is a sample of my search form witch search members or groups as the user choose and it can be submitted by clicking search.jpg <form name="searchform" action='Searchb.php' method='GET' > <a href=""><img src="img/search.jpg" width="60" height="49" onClick="searchform.submit()" style="border-style: none"></a> <input type="text" name="Search" />&nbsp;<label>member</label><input name="radio1" type="radio" value="Member" />&nbsp;<label>Group</label> &nbsp; <input name="radio1" type="radio" value="Group" /> </form>"

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  • How does the event dispatch thread work?

    - by Roman
    With the help of people on stackoverflow I was able to get the following working code of the simples GUI countdown (it just displays a window counting down seconds). My main problem with this code is the invokeLater stuff. As far as I understand the invokeLater send a task to the event dispatching thread (EDT) and then the EDT execute this task whenever it "can" (whatever it means). Is it right? To my understanding the code works like that: In the main method we use invokeLater to show the window (showGUI method). In other words, the code displaying the window will be executed in the EDT. In the main method we also start the counter and the counter (by construction) is executed in another thread (so it is not in the event dispatching thread). Right? The counter is executed in a separate thread and periodically it calls updateGUI. The updateGUI is supposed to update GUI. And GUI is working in the EDT. So, updateGUI should also be executed in the EDT. It is why the code for the updateGUI is inclosed in the invokeLater. Is it right? What is not clear to me is why we call the counter from the EDT. Anyway it is not executed in the EDT. It starts immediately a new thread and the counter is executed there. So, why we cannot call the counter in the main method after the invokeLater block? import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.SwingUtilities; public class CountdownNew { static JLabel label; // Method which defines the appearance of the window. public static void showGUI() { JFrame frame = new JFrame("Simple Countdown"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); label = new JLabel("Some Text"); frame.add(label); frame.pack(); frame.setVisible(true); } // Define a new thread in which the countdown is counting down. public static Thread counter = new Thread() { public void run() { for (int i=10; i>0; i=i-1) { updateGUI(i,label); try {Thread.sleep(1000);} catch(InterruptedException e) {}; } } }; // A method which updates GUI (sets a new value of JLabel). private static void updateGUI(final int i, final JLabel label) { SwingUtilities.invokeLater( new Runnable() { public void run() { label.setText("You have " + i + " seconds."); } } ); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { public void run() { showGUI(); counter.start(); } }); } }

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  • Unable to use certain Fonts programatically in ASP.Net

    - by TooFat
    I am trying to programatically create a bitmap with a specified font in ASP.Net. The idea is that the text, font name, size color etc. will be passed in from variables and a bitmap of the text using the font etc will be returned. However, I have been finding that I am only able to do so using the following code with certain fonts. <div> <% string fontName = "Segoe Script"; //Change Font here System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(100, 100); System.Drawing.Graphics graph = System.Drawing.Graphics.FromImage(bmp); System.Drawing.Font fnt = new System.Drawing.Font(fontName, 20); System.Drawing.SolidBrush brush = new System.Drawing.SolidBrush(System.Drawing.Color.Red); graph.DrawString("Help", fnt, brush, new System.Drawing.Point(10, 10)); bmp.Save(@"C:\Development\Path\image1.bmp"); this.Image1.ImageUrl = "http://mysite/Images/image1.bmp"; %> <asp:Label ID="Label1" runat="server" Text="Label" Font-Names="Segoe Script"> <%Response.Write("Help"); %></asp:Label> //Change font here <asp:Image ID="Image1" runat="server" /> </div> If I change the font name in the areas indicated by the comments to Arial or Verdana both the image and the label appear with the correct font. If however, I change the font name in both locations to something "Segoe Script" the Label will show up in Segoe Script but the image is in what looks like Arial.

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  • Java - How to force resize JCheckBox to prevent clicking the empty space ?

    - by Brad
    When i create a JCheckBox in my Swing application i leave some extra space after its label, so if the JCheckBox label is for example 100 pixels width, i make the JCheckBox 120 pixels for safety. The problem as at runtime, it's not nice that a user can click on the empty space after the JCheckBox label and it can be actually clicked, like this : I wonder if there is a way to resize the JCheckBox at runtime to exactly fit the text inside it, depending on the font type/size used ? This seems fancy a bit, but i like to make things look perfect :)

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  • Flex/Air/AS3 Selecting and Populating a unFocused tab.

    - by Deyon
    I'm having a problem displaying data from a function to text box within a tab. If you run the code and click "Select Tab 2 and Fill..." I get an error; "TypeError: Error #1009: Cannot access a property or method of a null object reference." I'm guessing this is because "Tab 2" is/was not rendered yet. Now if I run the code, select "Tab 2" then select "Tab 1" and click "Select Tab 2 and Fill..." it works the way I would like. Dose any one know a way around this problem. ----Full Flex 4/Flash Builder Code just copy paste---- <?xml version="1.0" encoding="utf-8"?> <s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo" creationComplete=" "> <fx:Script> <![CDATA[ public function showtab2():void { mytextbox.text="I made it!"; tn.selectedIndex=1; } ]]> </fx:Script> <fx:Declarations> <!-- Place non-visual elements (e.g., services, value objects) here --> </fx:Declarations> <mx:Panel title="TabNavigator Container Example" height="90%" width="90%" paddingTop="10" paddingLeft="10" paddingRight="10" paddingBottom="10"> <mx:Label width="100%" color="blue" text="Select the tabs to change the panel."/> <mx:TabNavigator id="tn" width="100%" height="100%"> <!-- Define each panel using a VBox container. --> <mx:VBox label="Panel 1"> <mx:Label text="TabNavigator container panel 1"/> <mx:Button label="Select Tab 2 and Fill with Text" click="showtab2()"/> </mx:VBox> <mx:VBox label="Panel 2"> <mx:Label text="TabNavigator container panel 2"/> <s:TextInput id="mytextbox" /> </mx:VBox> </mx:TabNavigator> <mx:HBox> </mx:HBox> </mx:Panel> </s:WindowedApplication>

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  • How can I simulate the effects of an observable collection in this situation?

    - by MGSoto
    I am making a configuration editor for another application and am using reflection to pull editable fields from the configuration class. The following class is the base class for my various "DataTypeViewModels" and shows how I get and set the appropriate properties. public abstract class DataTypeViewModel<T> : ViewModelBase { Func<T> getFunction; Action<T> setAction; public const string ValuePropertyName = "Value"; public string Label { get; set; } public T Value { get { return getFunction.Invoke(); } set { if (getFunction.Invoke().Equals(value)) { return; } setAction.Invoke(value); // Update bindings, no broadcast RaisePropertyChanged(ValuePropertyName); } } /// <summary> /// Initializes a new instance of the StringViewModel class. /// </summary> public DataTypeViewModel(string sectionName, string label) { if (IsInDesignMode) { // Code runs in Blend --> create design time data. } else { Label = label; getFunction = new Func<T>(() => { return (T)Settings.Instance.GetType().GetProperty(sectionName).PropertyType. GetProperty(label).GetValue(Settings.Instance.GetType().GetProperty(sectionName).GetValue(Settings.Instance, null), null); }); setAction = new Action<T>(value => { Settings.Instance.GetType().GetProperty(sectionName).PropertyType.GetProperty(label). SetValue(Settings.Instance.GetType().GetProperty(sectionName).GetValue(Settings.Instance, null), value, null); }); } } } This part works the way I want it to, the next part is a sample DataTypeViewModel on a list of strings. public class StringListViewModel : DataTypeViewModel<ICollection<string>> { /// <summary> /// The <see cref="RemoveItemCommand" /> property's name. /// </summary> public const string RemoveItemCommandPropertyName = "RemoveItemCommand"; private RelayCommand<string> _removeItemCommand = null; public ObservableCollection<string> ObservableValue { get; set; } /// <summary> /// Gets the RemoveItemCommand property. /// TODO Update documentation: /// Changes to that property's value raise the PropertyChanged event. /// This property's value is broadcasted by the Messenger's default instance when it changes. /// </summary> public RelayCommand<string> RemoveItemCommand { get { return _removeItemCommand; } set { if (_removeItemCommand == value) { return; } var oldValue = _removeItemCommand; _removeItemCommand = value; // Update bindings, no broadcast RaisePropertyChanged(RemoveItemCommandPropertyName); } } /// <summary> /// The <see cref="AddItemCommand" /> property's name. /// </summary> public const string AddItemCommandPropertyName = "AddItemCommand"; private RelayCommand<string> _addItemCommand = null; /// <summary> /// Gets the AddItemCommand property. /// TODO Update documentation: /// Changes to that property's value raise the PropertyChanged event. /// This property's value is broadcasted by the Messenger's default instance when it changes. /// </summary> public RelayCommand<string> AddItemCommand { get { return _addItemCommand; } set { if (_addItemCommand == value) { return; } var oldValue = _addItemCommand; _addItemCommand = value; // Update bindings, no broadcast RaisePropertyChanged(AddItemCommandPropertyName); } } /// <summary> /// Initializes a new instance of the StringListViewModel class. /// </summary> public StringListViewModel(string sectionName, string label) : base(sectionName, label) { ObservableValue = new ObservableCollection<string>(Value); AddItemCommand = new RelayCommand<string>(param => { if (param != string.Empty) { Value.Add(param); ObservableValue.Add(param); } }); RemoveItemCommand = new RelayCommand<string>(param => { if (param != null) { Value.Remove(param); ObservableValue.Remove(param); } }); } } As you can see in the constructor, I currently have "Value" mirrored into a new ObservableCollection called "ObservableValue", which is then bound to by a ListView in the XAML. It works well this way, but cloning the List seems like such a hacky way to do this. While bound to Value, I've tried adding: RaisePropertyChanged("Value"); to the AddItemCommand and RemoveItemCommand, but this doesn't work, the ListView won't get updated. What is the proper way to do this?

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  • Applying JQuery UI css to a textarea element

    - by Felix Guerrero
    Hi. I'm using JQuery UI for a web based development at the University. I got some forms that I put into a dialog, so I got elements like <label for="name">ID user</label><input type="text" name="iduser" size="15" id="iduser" class="text ui-widget-content ui-corner-all" maxlength=12 /> But I got some textarea elements like <label for="name">Description</label><textarea name="description" id="description" class="text ui-widget-content ui-corner-all" value=""></textarea> The issue: textarea is not taking the css as inputs does, I mean, I got corner rounder textarea as input texts but the font size and font family don't.

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  • how to decorate the error message

    - by ulduz114
    this is the decorator code $mydecorate = array( 'ViewHelper', array('Errors', array('placement' => 'append','class' => 'error')), array('Label', array('separator' => '')), array('HtmlTag', array('tag' => 'p', 'class' => 'element-form')) ); html result of two input elements with the above decorator: <p class="element-form"> <label for="firstname" class="required">First Name:</label> <input name="firstname" id="firstname" value="" type="text"> </p><ul class="error"><li>required field!</li></ul> <p class="element-form"> <label for="lastname" class="required">Last Name:</label> <input name="lastname" id="lastname" value="" type="text"> </p><ul class="error"><li>required field!</li></ul> I'd like the error message to be placed inside the p.element-form tag, any idea pleas? thanks

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  • Mysql table data problem?

    - by DaTeNtImE
    I'm new to mysql and was wondering how can I add the users birthdate in the following HTML format to the MYSQL table data listed below? How would the structure look like for example email VARCHAR(80) NOT NULL,? Here is the HTML code below. <li><label>Date of Birth: </label> <label for="month">Month: </label> <select name="month" id="month"> <option value="January">January</option> <option value="February">February</option> <option value="March">March</option> <option value="April">April</option> <option value="May">May</option> <option value="June">June</option> <option value="July">July</option> <option value="August">August</option> <option value="September">September</option> <option value="October">October</option> <option value="November">November</option> <option value="December">December</option> </select> <label for="day">Day: </label> <select id="day" name="day"> <option value="0" selected="selected">Day</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7">7</option> <option value="8">8</option> <option value="9">9</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> <option value="13">13</option> <option value="14">14</option> <option value="15">15</option> <option value="16">16</option> <option value="17">17</option> <option value="18">18</option> <option value="19">19</option> <option value="20">20</option> <option value="21">21</option> <option value="22">22</option> <option value="23">23</option> <option value="24">24</option> <option value="25">25</option> <option value="26">26</option> <option value="27">27</option> <option value="28">28</option> <option value="29">29</option> <option value="30">30</option> <option value="31">31</option> </select> <label for="year">Year: </label><input type="text" name="year" id="year" /></li> Here is the MySQL table data. CREATE TABLE users ( user_id INT UNSIGNED NOT NULL AUTO_INCREMENT, first_name VARCHAR(20) NOT NULL, last_name VARCHAR(40) NOT NULL, email VARCHAR(80) NOT NULL, pass CHAR(40) NOT NULL, user_level TINYINT(1) UNSIGNED NOT NULL DEFAULT 0, active CHAR(32), registration_date DATETIME NOT NULL, PRIMARY KEY (user_id), UNIQUE KEY (email), INDEX login (email, pass) );

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