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  • Disable second dropdown menu before first is populated

    - by johnny-kessel
    I need to grey out the second jump box (Select a Subcategory) before the first (Choose a Category) has a valid selection ..Here is the current code.. thanks guys <script type="text/javascript"> \$j(document).ready(function() { \$j('.subf_dropdown').html($j('.subf_dropdown').html()); }); function chooseForum(f, name) { \$j.ajax({ url: 'index.php?autocom=cats&root=' + f, type: 'GET', timeout: 100000, error: function(){ alert('Oops something went wrong. Please try again'); }, success: function(xml){ \$j('.subf_dropdown').html("<optgroup label='Subcategories'> " + xml + " </optgroup>"); } }); } function newPostInForum(f) { if (f != "") { window.location = "http://www.xxx.co.za/?act=post&do=new_post&f=" + f; } } </script> <select name='f' class='f_dropdown' onchange="chooseForum(this.value, this); return false;"> <optgroup label="Choose a Category"> {$data} </optgroup> </select> <br /><br /> <select name='subf' class='subf_dropdown' onchange="newPostInForum(this.value); return false;"> <optgroup label="Subcategories"> <option value="" selected="selected">Select a Subcategory</option> </optgroup> </select>

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  • How to pass multiple parameter in DomainService - WCF

    - by S.Amani
    Hi, Let's say I have a window which should submit 3 model in client side (Silverlight Client Application). My problem is each time I submit the form, data on the server side which I passed them from client are empty. I've used nested class which contains my models, instead of passing multiple object as parameter, but it didn't work again. My Personnel Data Transfer Object Code is something like this : [DataContract] public class PersonnelDTO : EntityObject { [Key] [DataMember] public int PersonnelId { get; set; } [Include] [DataMember] [Association("Personnel_ID", "PersonnelId", "Personnel_ID")] public Personnel Personnel { get; set; } [Include] [DataMember] [Association("Personnel_Info_ID", "PersonnelId", "Personnel_Info_ID")] public Personnel_Info PersonnelInfo { get; set; } } I fill up this model to pass data from client to server (DomainService). and also my domain service code is : [Invoke] public void AddPersonnel(PersonnelDTO personnelDTO) { // Model are EMPTY in DTO ObjectContext.AddToPersonnels(personnelDTO.Personnel); ObjectContext.AddToPersonnel_Info(personnelDTO.PersonnelInfo); ObjectContext.SaveChanges(); } I don't know if there is a way to pass multiple parameter in WCF Service method include Generic List. Any advice will be graceful. Thanks.

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  • Best fit curve for trend line

    - by Dave Jarvis
    Problem Constraints Size of the data set, but not the data itself, is known. Data set grows by one data point at a time. Trend line is graphed one data point at a time (using a spline/Bezier curve). Graphs The collage below shows data sets with reasonably accurate trend lines: The graphs are: Upper-left. By hour, with ~24 data points. Upper-right. By day for one year, with ~365 data points. Lower-left. By week for one year, with ~52 data points. Lower-right. By month for one year, with ~12 data points. User Inputs The user can select: the type of time series (hourly, daily, monthly, quarterly, annual); and the start and end dates for the time series. For example, the user could select a daily report for 30 days in June. Trend Weight To calculate the window size (i.e., the number of data points to average when calculating the trend line), the following expression is used: data points / trend weight Where data points is derived from user inputs and trend weight is 6.4. Even though a trend weight of 6.4 produces good fits, it is rather arbitrary, and might not be appropriate for different user inputs. Question How should trend weight be calculated given the constraints of this problem?

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  • jquery image hover popup cant detect browser edge and change its direction

    - by Salman
    hi guys i am trying to implement jquery image hover popup but facing a problem when the popup is closer to browser edge it goes beyond its edge i want it to change its direction when it finds that space is not enough to show that popup, i have see this effect in many plugins where popups, tooltips and drop down menus change their direction if they are close to browser window edge can any one guide me in right direction here is the screen shot for reference http://img512.imageshack.us/img512/4990/browseredge.png here is the jquery hover code function imagePreview(){ /* CONFIG */ xOffset = 10; yOffset = 30; // these 2 variable determine popup's distance from the cursor // you might want to adjust to get the right result /* END CONFIG */ $("a.preview").hover(function(e){ this.t = this.title; this.title = ""; var c = (this.t != "") ? "<br>" + this.t : ""; var newName = this.name; //console.log(this.name); newName=newName.replace("/l/","/o/"); //console.log(newName); $("body").append("<p id='preview'><img src='"+ this.name +"' alt='Image preview' style='margin-bottom:5px;'>"+ c +"</p>"); $("#preview img").error(function () { $("#preview img").attr("src" ,newName).css({'width': '400px', 'height': 'auto'}); }); $("#preview") .css("top",(e.pageY - xOffset) + "px") .css("left",(e.pageX + yOffset) + "px") .fadeIn("fast"); }, function(){ this.title = this.t; $("#preview").remove(); }); $("a.preview").mousemove(function(e){ $("#preview") .css("top",(e.pageY - xOffset) + "px") .css("left",(e.pageX + yOffset) + "px"); }); }; any help will be appriciated Thanks Salman

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  • Sizers... - wxPython

    - by Francisco Aleixo
    Ok, so I'm learning about sizers in wxPython and I was wondering if it was possible to do something like: ============================================== |WINDOW TITLE _ [] X| |============================================| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |xxxxxxxxxxxxxxxxxxNOTEBOOKxxxxxxxxxxxxxxxxxx| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |________ ___________| |IMAGE | |LoginForm | |________| |___________| ============================================== NOTE:Yeah, I literally got this from http://stackoverflow.com/questions/1892110/wxpython-picking-the-right-sizer-to-use-in-an-application With NOTEBOOK expanded to left and bottom, IMAGE to align to left and bottom and loginform align to right and bottom and I managed to do almost everything but now I have a problem.. The problem is that I can't align Loginform and Image separately (im using Box Sizers), and I would like to. This is the code I'm using that is causing the problem at the moment, any help is appreciated. NOTE:The code might be (HUGELY) sloppy as I'm still learning box sizers. sizer = wx.BoxSizer(wx.VERTICAL) sizer1 = wx.BoxSizer(wx.HORIZONTAL) sizer1.Add(self.nb,1, wx.EXPAND) sizer.Add(sizer1,1, wx.LEFT | wx.RIGHT | wx.EXPAND, 10) sizer.Add((-1, 25)) sizer2 = wx.BoxSizer(wx.VERTICAL) sizer2.Add(self.userLabel, 0) sizer2.Add(self.userText, 0) sizer2.Add(self.pwdLabel, 0) sizer2.Add(self.pwdText, 0) sizer2.Add(self.rem, 0) sizer3 = wx.BoxSizer(wx.HORIZONTAL) sizer3.Add(self.login, 0) sizer3.Add(self.sair,0, wx.LEFT, 5) sizer2.Add(sizer3, 0) sizer4 = wx.BoxSizer(wx.HORIZONTAL) sizer4.Add(image, 1, wx.LEFT | wx.BOTTOM) sizer4.Add(sizer2,0, wx.RIGHT | wx.BOTTOM , 5) sizer.Add(sizer4,0, wx.ALIGN_RIGHT | wx.RIGHT, 10)

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  • Visual C++ Assembly link library troubles

    - by Sanarothe
    Hi. I'm having a problem having my projects built in VC++ Express 2008... I'm using a library, irvine32.inc/lib. INCLUDE Irvine32.inc works for me at school (On already configured VS environments) by default, but at home (Windows 7 x64) I'm having a boatload of issues. My original post here was that a file that irvine32.inc referenced, in the same folder, 'could not be opened.' Added irvine folder to the include path for specific project, progress. Then I was getting an error with mt.exe, but a suggestion on the MSDN suggested turn off antivirus, and now project does build but when I run a program that does NOT reference anything in irvine32, it tells me repeatedly that my project has triggered a breakpoint, and allows me to continue or break. Continue just pops the same window, break loads another popup telling me that "No symbols are loaded for any call stack frame. Source code cannot be displayed." This popup lets me view the disassembly. I tested it with and without working statements, it just throws the same breakpoint on the first line of code. Now, if I run the program when it DOES require something from the include file, in this case, DumpRegs: INCLUDE Irvine32.inc .data .code main PROC mov ebx,1000h mov eax,1000h add eax,ebx call DumpRegs main ENDP END main This gives me 1main.obj : error LNK2019: unresolved external symbol _DumpRegs@0 referenced in function _main@0 1C:\Users\Cameron\csis165\Lab8_CCarroll\Debug\Lab8_CCarroll.exe : fatal error LNK1120: 1 unresolved externals This does NOT happen when I build a project from the book author's examples, which has the same include statement. I'm baffled. :(

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  • Follow tab's url in jquery ui tabs

    - by Aakash Chakravarthy
    Hello, I have jquery tabs like <ul id="tabsList"> <li><a href="#tab-1">Name 1</a></li> <li><a href="#tab-2">Name 2</a></li> <li><a href="http://www.google.com/">Name 3</a></li> </ul> <div id="tab-1">content 1</div> <div id="tab-2">content 2</div> the first two tabs load the respective divs. But the third one should go to google.com, instead it does nothing. It just adds http://example.com/index.html#ui-tabs-[object Object] to the url. I am developing a wordpress plugin and the admin page needs a tab interface. I tested this in a local server and not working update: i don't want to load google.com inside the page. It should open the webpage in new tab/window like ordinary links do.

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  • Lua Alien Module - Trouble using WriteProcessMemory function, unsure on types (unit32)

    - by jefferysanders
    require "alien" --the address im trying to edit in the Mahjong game on Win7 local SCOREREF = 0x0744D554 --this should give me full access to the process local ACCESS = 0x001F0FFF --this is my process ID for my open window of Mahjong local PID = 1136 --function to open proc local op = alien.Kernel32.OpenProcess op:types{ ret = "pointer", abi = "stdcall"; "int", "int", "int"} --function to write to proc mem local wm = alien.Kernel32.WriteProcessMemory wm:types{ ret = "long", abi = "stdcall"; "pointer", "pointer", "pointer", "long", "pointer" } local pRef = op(ACCESS, true, PID) local buf = alien.buffer("99") -- ptr,uint32,byte arr (no idea what to make this),int, ptr print( wm( pRef, SCOREREF, buf, 4, nil)) --prints 1 if success, 0 if failed So that is my code. I am not even sure if I have the types set correctly. I am completely lost and need some guidance. I really wish there was more online help/documentation for alien, it confuses my poor brain. What utterly baffles me is that it WriteProcessMemory will sometimes complete successfully (though it does nothing at all, to my knowledge) and will also sometimes fail to complete successfully. As I've stated, my brain hurts. Any help appreciated.

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  • IValueConverter from string

    - by Aleksandar Toplek
    I have an Enum that needs to be shown in ComboBox. I have managed to get enum values to combobox using ItemsSource and I'm trying to localize them. I thought that that could be done using value converter but as my enum values are already strings compiler throws error that IValueConverter can't take string as input. I'm not aware of any other way to convert them to other string value. Is there some other way to do that (not the localization but conversion)? I'm using this marku extension to get enum values [MarkupExtensionReturnType(typeof (IEnumerable))] public class EnumValuesExtension : MarkupExtension { public EnumValuesExtension() {} public EnumValuesExtension(Type enumType) { this.EnumType = enumType; } [ConstructorArgument("enumType")] public Type EnumType { get; set; } public override object ProvideValue(IServiceProvider serviceProvider) { if (this.EnumType == null) throw new ArgumentException("The enum type is not set"); return Enum.GetValues(this.EnumType); } } and in Window.xaml <Converters:UserTypesToStringConverter x:Key="userTypeToStringConverter" /> .... <ComboBox ItemsSource="{Helpers:EnumValuesExtension Data:UserTypes}" Margin="2" Grid.Row="0" Grid.Column="1" SelectedIndex="0" TabIndex="1" IsTabStop="False"> <ComboBox.ItemTemplate> <DataTemplate DataType="{x:Type Data:UserTypes}"> <Label Content="{Binding Converter=userTypeToStringConverter}" /> </DataTemplate> </ComboBox.ItemTemplate> </ComboBox> And here is converter class, it's just a test class, no localization yet. public class UserTypesToStringConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { return (int) ((Data.UserTypes) value) == 0 ? "Fizicka osoba" : "Pravna osoba"; } public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { return default(Data.UserTypes); } }

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  • WebView inside Tab hiding the tabWidgets

    - by brockoli
    I'm having trouble with a WebView always filling the full screen and thus covering my tabs. Here is my code for the tabhost.. public class tabNZBMobile extends TabActivity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); Resources res = getResources(); // Resource object to get Drawables TabHost tabHost = getTabHost(); // The activity TabHost TabHost.TabSpec spec; // Reusable TabSpec for each tab Intent intent; // Reusable Intent for each tab // Create an Intent to launch an Activity for the tab (to be reused) intent = new Intent().setClass(this, NewzbinMobile.class); // Initialize a TabSpec for each tab and add it to the TabHost spec = tabHost.newTabSpec("search").setIndicator("Search", res.getDrawable(R.drawable.ic_tab_search)) .setContent(intent); tabHost.addTab(spec); // Do the same for the other tabs intent = new Intent().setClass(this, sabnzbWeb.class); spec = tabHost.newTabSpec("sabnzbweb").setIndicator("SabNZBd", res.getDrawable(R.drawable.ic_tab_sabnzbweb)) .setContent(intent); tabHost.addTab(spec); tabHost.setCurrentTabByTag("search"); }} My first tab (NewzbinMobile.class) displays correctly, it's just a relativelayout. But my second tab is an activity showing a webview and it is showing, but using the whole screen, covering my tabs. Here is the code for my second tab. public class sabnzbWeb extends Activity { WebView mWebView; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); String sabNZBurl = new String("http://test.server.org:8080/m"); mWebView = new WebView(this); mWebView.getSettings().setJavaScriptEnabled(true); setContentView(mWebView); mWebView.loadUrl(sabNZBurl); }}

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  • Android Custom Dialog NullPointerException

    - by Kyle Hughes
    I cannot for the life of me figure out why I'm getting a NullPointerException. When a user clicks on a particular image, a dialog window is supposed to pop-up and display a larger version of said image: private OnClickListener coverListener = new OnClickListener() { public void onClick(View v) { showDialog(DIALOG_COVER); } }; DIALOG_COVER is set to = 0. The associated onCreateDialog looks like this: protected Dialog onCreateDialog(int id) { Dialog dialog; switch(id) { case DIALOG_COVER: dialog = new Dialog(mContext); dialog.setContentView(R.layout.cover_dialog); dialog.setTitle(book.getTitle()); ImageView coverLarge = (ImageView)findViewById(R.id.coverLarge); coverLarge.setImageBitmap(book.getCover()); break; default: dialog = null; } return dialog; } For reference, this is cover_dialog.xml: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/coverDialog" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="10dp"> <ImageView android:id="@+id/coverLarge" android:layout_width="wrap_content" android:layout_height="wrap_content" android:scaleType="fitStart" /></LinearLayout> Now, when the image previously described is clicked, the application immediately crashes and throws the following error through LogCat: 06-08 13:29:17.727: ERROR/AndroidRuntime(2220): Uncaught handler: thread main exiting due to uncaught exception 06-08 13:29:17.757: ERROR/AndroidRuntime(2220): java.lang.NullPointerException 06-08 13:29:17.757: ERROR/AndroidRuntime(2220): at org.kylehughes.android.brarian.AndroidBrarian.onCreateDialog(AndroidBrarian.java:259) The line in question refers to this line inside of onCreateDialog: coverLarge.setImageBitmap(book.getCover()); Basically, I don't get why coverLarge is null at that point. Any help would be much appreciated.

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  • Automatically resize jQuery UI dialog to the width of the content loaded by ajax

    - by womp
    I'm having a lot of trouble finding specific information and examples on this. I've got a number of jQuery UI dialogs in my application attached to divs that are loaded with .ajax() calls. They all use the same setup call: $(".mydialog").dialog({ autoOpen: false, resizable: false, modal: true }); I just want to have the dialog resize to the width of the content that gets loaded. Right now, the width just stays at 300px (the default) and I get a horizontal scrollbar. As far as I can tell, "autoResize" is no longer an option for dialogs, and nothing happens when I specify it. I'm trying to not write a separate function for each dialog, so .dialog("option", "width", "500") is not really an option, as each dialog is going to have a different width. Specifying width: 'auto' for the dialog options just makes the dialogs take up 100% of the width of the browser window. What are my options? I'm using jQuery 1.4.1 with jQuery UI 1.8rc1. It seems like this should be something that is really easy. EDIT: I've implemented a kludgy workaround for this, but I'm still looking for a better solution.

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  • Debugging Maya plug-ins: can't get output or debugger to engage

    - by brainjam
    I'm not a total beginner at Maya, but this is my first time trying to write a plug-in for it. I've downloaded the 30-day eval version of Maya2011 (32bit version on 64bit Windows 7), and have tried building a couple of plug-ins with VC 2008 Express. The first one is helloWorldCmd from the sample directory ..\devkit\plug-ins, and it basically doesn't work until you convert the line cout<<"Hello World"<<endl; to cerr<<"Hello World"<<endl;, but I can live with that. The second one is the SelectRingContext2 example from David Gould's book. The plug-in works as advertised, but I cannot get any debugging output from it. I've tried putting cout, cerr,printf, and MGlobal::displayInfo into the doIt() method, and can't get a peep. I also haven't figured out how to run the plug-in in a debugger. I'm afraid I'm missing something easy but slightly obscure, like a flag somewhere. Anybody out there have any hints? Edit: Turns out the action is happening in the redoIt() method. So I can get MGlobal::displayInfo and cerr producing output. Still don't know why cout and printf don't work, and I'm not sure how to run in the debugger. When I run maya -d (which some of the online advice says I should do) it just shows the output window but never loads the rest.

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  • Getting Google results in Java? Need help!

    - by Cris Carter
    Hello. Right now, I'm trying to get the results from Google in Java, by searching for a term. I'm using a desktop program, not an applet. That in itself isn't complicated. but then Google gave me a 403 error. Anyways, I added referrer and User Agent and then it worked. Now, my problem is that I don't get the results page from Google. Instead, I get their script which gets the results page. My code right now simply uses a GET request on "http://www.google.com/search?q=" + Dork; Then it outputs each line. Here is what I get when I run my program: <.!doctype html<.head<.titledork - Google Search<./title<.scriptwindow.google={kEI:"9myaS-Date).getTime()}}};try{}catch(u){}window.google.jsrt_kill=1; align:center}#logo{display:block;overflow:hidden;position:relative;width:103px;height:37px; <./ script<./div Lots of stuff like that. I shortened it (A LOT) and put in dots to fit it here. So my big question is: How do I turn this whole mess into the nice results page I get when searching Google with a browser? Any help would be seriously appreciated, and I really need the answer fast. Also, please keep in mind that I do NOT want to use Google's API for this. Thanks in advance!

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  • Dynamic Google Maps API InfoWindow HTML Content

    - by Peter Hanneman
    I am working in Flash Builder 4 with Google Map's ActionScript API. I have created a map, loaded some custom markers onto it and added some MouseEvent listeners to each marker. The trouble comes when I load an InfoWindow panel. I want to dynamically set the htmlContent based off of information stored in a database. The trouble is that this information can change every couple of seconds and each marker has a unique data set so I can not statically set it at the time I actually create the markers. I have a method that will every minute or so load all of the records from my database into an Object variable. Everything I need to display in the htmlContent is contained in this object under a unique identifier. The basic crux of the problem is that there is no way for me to uniquely identify an info window, so I can not determine what information to pull into the panel. marker.addEventListener(MapMouseEvent.ROLL_OVER, function(e:MapMouseEvent):void { showInfoWindow(e.latLng) }, false, 0, false); That is my mouse event listener. The function I call, "showInfowindow" looks like this: private function showInfoWindow(latlng:LatLng):void { var options:InfoWindowOptions = new InfoWindowOptions({title: appData[*I NEED A UNIQUE ID HERE!!!*].type + " Summary", contentHTML: appData[*I NEED A UNIQUE ID HERE!!!*].info}); this.map.openInfoWindow(latlng, options); } I thought I was onto something by being able to pass a variable in my event listener declaration, but it simply hates having a dynamic variable passed through, it only returns the last value use. Example: marker.addEventListener(MapMouseEvent.ROLL_OVER, function(e:MapMouseEvent):void { showInfoWindow(e.latLng, record.unit_id) }, false, 0, false); That solution is painfully close to working. I iterate through a loop to create my markers when I try the above solution and roll over a marker I get information, but every marker's information reflects whatever information the last marker created had. I apologize for the long explaination but I just wanted to make my question as clear as possible. Does anyone have any ideas about how to patch up my almost-there-solution that I posted at the bottom or any from the ground up solutions? Thanks in advance, Peter Hanneman

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  • Call Init from XUL after Page Loads (Firefox add-on)

    - by mattyboy123
    Hi all, I've been working on some code in js/html and it works great. I'm now trying to package it into an add-on for Firefox, and having some issues getting the XUL document correct. PLAIN OLD HTML/JS In my html test file between the <head></head> I have: <script type="text/javascript" src="js/MyCode.js"></script> At the end of the test file before the </body> I have: <script type="text/javascript">MyCode.Static.Init();</script> FIREFOX ADD-ON: OVERLAY.XUL In an overlay.xul file in the extension package I have : <?xml version="1.0"?> <overlay id="mycode" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <script type="application/x-javascript" src="chrome://mycode/content/MyCode.js"></script> <script> window.addEventListener("load", function () { gBrowser.addEventListener("load",MyCode.Static.Init,true); }, false); </script> </overlay> This does not seem to enter the method, but then again I'm not even sure if I've got the listeners firing properly. Would this be the correct way to duplicate what I was doing in plain old html/js ?

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  • How to get top and left style property values in Javascript

    - by Dude-Dastic
    Hi all, I have a little bit of Javascript that almost works correctly. Here's the code: function toggle(curlink) { curlink.style.backgroundColor = curlink.style.backgroundColor == "yellow" ? "transparent" : "yellow"; var maindiv = document.getElementById("grid"); var links = maindiv.getElementsByTagName("a"); var list = ""; for (var i = 0; i < links.length; ++i) { var link = links[i]; if (link.style.backgroundColor == "yellow") { list += ("," + parseInt(link.style.left, 10) + "-" + parseInt(link.style.top, 10)); } } document.theForm.theList.value = list.substring(1); return false; }; window.onload = function() { var links = document.getElementById("grid").getElementsByTagName("a"); for (var i = 0; i < links.length; ++i) { links[i].onclick = function() { return toggle(this); } } }; The issue is with line #9; it only works when I specify values for the top and left style property of every link in the array. How do I get the top and left style property values (or X and Y coordinates) of each link in the array with Javascript when those values aren't given? Also, what would the code above look like in jquery? Not that it's needed - I just want to reduce the code a little and dabble in the jquery framework (I'm a Javascript newbie). Thanks in advance, Dude-Dastic

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  • WPF TextBlock Binding to DependencyProperty

    - by Bill Campbell
    Hi, I have what I believe to be about one of the most simple cases of attempting to bind a view to a dependencyproperty in the view model. It seems that the initial changes are reflected in the view but other changes to the DP do not update the view's TextBlock. I'm probably just missing something simple but I just can't see what it is. Please take a look... My XAML has a status bar on the bottom of the window. I want to bind to the DP "VRAStatus". <StatusBar x:Name="sbar" Grid.Column="0" Grid.Row="2" Grid.ColumnSpan="2" VerticalAlignment="Bottom" Background="LightBlue" Opacity="0.4" DockPanel.Dock="Bottom" > <StatusBarItem> <TextBlock x:Name="statusBar" Text="{Binding VRAStatus}" /> </StatusBarItem> <StatusBarItem> <Separator Style="{StaticResource StatusBarSeparatorStyle}"/> </StatusBarItem> </StatusBar> My viewmodel has the DP defined: public string VRAStatus { get { return (string)GetValue(VRAStatusProperty); } set { SetValue(VRAStatusProperty, value); } } // Using a DependencyProperty as the backing store for VRAStatus. public static readonly DependencyProperty VRAStatusProperty = DependencyProperty.Register("VRAStatus", typeof(string), typeof(PenskeRouteAssistViewModel),new PropertyMetadata(string.Empty)); Then, in my code I set the DP: VRAStatus = "Test Message..."; Is there something obvious here that I am missing? In my constructor for the viewmodel I set the DP like this: VRAStatus = "Ready"; I never get the Test Message to display. Please Help. thanks in advance! Bill

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  • C# WPF XAML Problem with icon in GridViewColumn

    - by Alex
    I've created a ListView with a GridView component in it. Now trying to fill one of the cells with an icon (PNG) like in the code sample below (save_icon.png): <ListView.View> <GridView> <GridViewColumn Header="Date" Width="Auto" DisplayMemberBinding="{Binding Date}" /> <GridViewColumn Header="Time" Width="Auto" DisplayMemberBinding="{Binding Time}" /> <GridViewColumn Header="FriendlyName" Width="Auto" DisplayMemberBinding="{Binding FriendlyName}" /> <GridViewColumn Width="Auto"> <Image Source="save_icon.png" /> </GridViewColumn> </GridView> </ListView.View> Visual Studio gives me an error on the line, where i put the icon into the column (ERROR: "Error 35: The file save_icon.png is not part of the project or its 'Build Action' property is not set to 'Resource'.") I added the icon to the project as a resource and when i start the app, everything works (the icon appears at the right place). But the WPF designer window can't be reloaded and i'm not able to see changes in the designer, when i change the XAML code. Can somebody explain this error or am i doing something wrong? Thanks for every hint in advance!

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  • Get the value for a WPF binding

    - by Jose
    Ok, I didn't want a bunch of ICommands in my MVVM ViewModels so I decided to create a MarkupExtension for WPF that you feed it a string(the name of the method), and it gives you back an ICommand that executes the method. here's a snippet: public class MethodCall : MarkupExtension { public MethodCall(string methodName) { MethodName = methodName; CanExecute = "Can" + methodName; } public override object ProvideValue(IServiceProvider serviceProvider) { Binding bin= new Binding { Converter = new MethodConverter(MethodName,CanExecute) }; return bin.ProvideValue(serviceProvider); } } public class MethodConverter : IValueConverter { string MethodName; public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { //Convert to ICommand ICommand cmd = ConvertToICommand(); if (cmd == null) Debug.WriteLine(string.Format("Could not bind to method 'MyMethod' on object",MethodName)); return cmd; } } It works great, except when the binding fails(e.g. you mistype). When you do this in xaml: {Binding MyPropertyName} you see in the output window whenever the binding fails. and it tells you the propertyName the Type name etc. The MethodConverter Class can tell you the name of the method that failed, but it can't tell you the source object type. Because the value will be null. I can't figure out how to store the source object type so for the following class public class MyClass { public void MyMethod() { } } and the following xaml: <Button Command={d:MethodCall MyMethod}>My Method</Button> It currently says: "Could not bind to method 'MyMethod' on object but I would like it to say: "Could not bind to method 'MyMethod' on object MyClass Any ideas?

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  • BitmapFrame in another thread

    - by Lasse Lindström
    Hi I am using a WPF BackgroundWorker to create thumbnails. My worker function looks like: private void work(object sender, DoWorkEventArgs e) { try { var paths = e.Argument as string[]; var boxList = new List(); foreach (string path in paths) { if (!string.IsNullOrEmpty(path)) { FileInfo info = new FileInfo(path); if (info.Exists && info.Length 0) { BitmapImage bi = new BitmapImage(); bi.BeginInit(); bi.DecodePixelWidth = 200; bi.CacheOption = BitmapCacheOption.OnLoad; bi.UriSource = new Uri(info.FullName); bi.EndInit(); var item = new BoxItem(); item.FilePath = path; MemoryStream ms = new MemoryStream(); PngBitmapEncoder encoder = new PngBitmapEncoder(); encoder.Frames.Add(BitmapFrame.Create(bi)); encoder.Save(ms); item.ThumbNail = ms.ToArray(); ms.Close(); boxList.Add(item); } } } e.Result = boxList; } catch (Exception ex) { //nerver comes here } } When this fuction is finnished and before the BackgroundWorker "Completed" function is started, I can see on the output window on Vs2008, that a exception is generated. It looks like: A first chance exception of type 'System.NotSupportedException' occurred in PresentationCore.dll The number of exceptions generates equals the number of thumbnails to be generated. Using "trial and error" I have isolated the problem to: BitmapFrame.Create(bi) Removing that line (makes my function useless) also removes the exception. I have not found any explanation to this,,, or a better method to create thumbnails i a background thread. Can anyone help me? //lasse

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  • How to invalidate layout of listbox from custom children

    - by Stephen Price
    I have a custom panel for a listbox <ItemsPanelTemplate x:Key="FloatPanelTemplate"> <Controls:FloatPanel x:Name="CardPanel" /> </ItemsPanelTemplate> The panel lays out its children using its X and Y dependency properties. This all works nicely when the FloatPanel is used by itself - I'm using FrameworkPropertyMetadataOptions.AffectsArrange | FrameworkPropertyMetadataOptions.AffectsMeasure on the dependency properties of the child items to tell the FloatPanel to redraw its layout. When I use it in a Listbox (code above) then it draws fine the first time, but when I drag the children (which modifies the item's X and Y) it is not notifying the Listbox that it needs to redraw the FloatPanel's children. I think the issue is related to the fact that each item in the bound collection is wrapped with a ListBoxItem. Hopefully I've described what i'm doing well enough that someone can tell me how to make the panel (or its children) tell it needs to do the Layout routines again. As I said it works once (initial draw) but then dragging items doesn't work (Listbox isnt aware that its children have changed and needs to relayout.) If I drag an item and then resize the window, the listbox does a layout and the items are drawn in their new locations. How do I notify the ListBox (or more importantly the FloatPanel in the ItemsPanelTemplate) that it needs to do a Layout pass?

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  • Aero Snap not working for my application

    - by Magnus Österlind
    I have a problem with Aero Snap not working with the application I'm working on (Windows desktop, native C++ application), and I'm a bit confused as to what's happening, as it seems like it should just work, out of the box. I've used Spy++ on a mininal win32 application, and get the following messages when I press Win-Left: <00070 00030D1C P WM_KEYDOWN nVirtKey:VK_LWIN cRepeat:1 ScanCode:5B fRepeat:0 fUp:0 <00071 00030D1C P WM_KEYDOWN nVirtKey:VK_LWIN cRepeat:1 ScanCode:5B fRepeat:1 fUp:0 <00072 00030D1C P WM_KEYDOWN nVirtKey:VK_LWIN cRepeat:1 ScanCode:5B fRepeat:1 fUp:0 <00088 00030D1C S WM_GETMINMAXINFO lpmmi:0043FCBC <00089 00030D1C R WM_GETMINMAXINFO lpmmi:0043FCBC <00090 00030D1C S WM_WINDOWPOSCHANGING lpwp:0043FCC4 <00091 00030D1C S WM_GETMINMAXINFO lpmmi:0043F8E8 <00092 00030D1C R WM_GETMINMAXINFO lpmmi:0043F8E8 <00093 00030D1C R WM_WINDOWPOSCHANGING .. and so on So I can see that the WM_KEYDOWN for the left key isn't reaching the application, but I'm getting the aero snap "resize window" stuff instead. When I Spy++ my application, I can see that the left key isn't being "intercepted", but instead being passed on to the application, so I don't get any snapping goodness. <00043 000F0F12 P WM_KEYDOWN nVirtKey:VK_LWIN cRepeat:1 ScanCode:5B fRepeat:0 fUp:0 <00044 000F0F12 P WM_KEYDOWN nVirtKey:VK_LWIN cRepeat:1 ScanCode:5B fRepeat:1 fUp:0 <00045 000F0F12 P WM_KEYDOWN nVirtKey:VK_LWIN cRepeat:1 ScanCode:5B fRepeat:1 fUp:0 <00060 000F0F12 P WM_KEYUP nVirtKey:VK_LEFT cRepeat:1 ScanCode:4B fRepeat:0 fUp:1 I'm going to dig into the cores of our message handling and see what's going on, but I'll take all the tips I can get :)

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  • Trying to debug a 'Assertion failure in -[UIActionSheet showInView:]' error....

    - by dsobol
    I am working through "Beginning iPad Application Development" and am getting hung up in Chapter 3 where I have created a project that works with an Action Sheet. As it stands now, my application loads into the simulator just fine with no errors that I am aware of, but as it runs, it crashes with the following errors showing up in the debugger window: 2010-05-31 19:44:39.703 UsingViewsActionSheet[49538:207] * Assertion failure in -[UIActionSheet showInView:], /SourceCache/UIKit_Sim/UIKit-1145.66/UIAlert.m:7073 2010-05-31 19:44:39.705 UsingViewsActionSheet[49538:207] * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid parameter not satisfying: view != nil' I am sure that this is the block where the app breaks based upon my use of breakpoints. //Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { UIActionSheet *action = [[UIActionSheet alloc] initWithTitle:@"This is my Action Sheet!" delegate:self cancelButtonTitle:@"OK" destructiveButtonTitle:@"Delete Message!" otherButtonTitles:@"Option 1", @"Option 2", @"Option 3", nil]; [action showInView:self.view]; // <-- This line seems to trigger the crash.... [action release]; [super viewDidLoad]; } Am I missing something obvious, or is there more to the problem than is shown here? I have looked at the abstract for showInView and cannot divine anything there yet. I appreciate any and all asssitance. Regards, Steve O'Sullivan

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  • DOS batch file to enter commands in proprietary java app and receive feedback?

    - by Justine
    Hello, I'm working on a project in which I'd like to be able to turn lights on and off in the Duke Smart Home via a high frequency chirp. The lighting system is called Clipsal Square-D and the program that gives a user access to the lighting controls is called CGate. I was planning on doing some signal processing in Matlab, then create a batch file from Matlab to interact with Cgate. Cgate is a proprietary Java app that, if run from a DOS command line, opens up another window that looks like the command prompt. I have a batch file that can check to see if Cgate is running and if not, open it. But what I can't figure out how to do is actually run commands in the Cgate program from the batch file and likewise, take the response from Cgate. An example of such a command is "noop," which should return "200 OK." Any help would be much appreciated! Thank you very much in advance :) (here's my existing batch file by the way) @ECHO off goto checkIfOpen :checkIfOpen REM pv finds all open processes and puts it in result.txt %SystemRoot%\pv\pv.exe %SystemRoot%\pv\pv.exe result.txt REM if result has the word notepad in it then notepad is running REM if not then it opens notepad FIND "notepad.exe" result.txt IF ERRORLEVEL 1 START %SystemRoot%\system32\Clipsal\C-Gate2\cgate.exe goto end :end

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