Search Results

Search found 10936 results on 438 pages for 'wpf controls'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 184/438 | < Previous Page | 180 181 182 183 184 185 186 187 188 189 190 191  | Next Page >

  • How i can add border to ListViewItem, ListView in GridView mode.

    - by Andrew
    Hello! I want to have a border around ListViewItem (row in my case). ListView source and columns generated during Runtime. In XAML i have this structure: <ListView Name="listViewRaw"> <ListView.View> <GridView> </GridView> </ListView.View> </ListView> During Runtime i bind listview to DataTable, adding necessary columns and bindings: var view = (listView.View as GridView); view.Columns.Clear(); for (int i = 0; i < table.Columns.Count; i++) { GridViewColumn col = new GridViewColumn(); col.Header = table.Columns[i].ColumnName; col.DisplayMemberBinding = new Binding(string.Format("[{0}]", i.ToString())); view.Columns.Add(col); } listView.CoerceValue(ListView.ItemsSourceProperty); listView.DataContext = table; listView.SetBinding(ListView.ItemsSourceProperty, new Binding()); So i want to add border around each row, and set border behavior (color etc) with DataTriggers (for example if value in 1st column = "Visible", set border color to black). Can i put border through DataTemplate in ItemTemplate? I know solution, where you manipulate with CellTemplates, but i don't really like it. I want something like this if this even possible. <DataTemplate> <Border Name="Border" BorderBrush="Transparent" BorderThickness="2"> <ListViewItemRow><!-- Put my row here, but i ll know about table structure only during runtime --></ListViewItemRow> </Border> </DataTemplate>

    Read the article

  • User Control SiteMap Provider Rendering Error

    - by Serexx
    I have created a Custom Server Control that renders the SiteMap as a pure UL for CSS styling. At run-time it renders properly but in VS2008 Design View VS shows this error: Error Rendering Control - menuMainAn unhandled exception has occurred. The provider 'AspNetXmlSiteMapProvider' specified for the defaultProvider does not exist in the providers collection. I have 'AspNetXmlSiteMapProvider' specified in web.config as per here : link text While I am happy that the code runs properly, the Designer error is bothersome if the underlying issue might cause the code to break in some circumstances so I need to understand what is going on... The code explicitly references the sitemap in the Render Method with : int level = 1; string ul = string.Format("<div class='{0}' id='{1}'>{2}</div>", CssClassName, this.ID.ToString(), EnumerateNodesRecursive(SiteMap.RootNode, level)); output.Write(ul); and the recursive method called referrences SiteMap.CurrentNode. Otherwise there are no explicit sitemap references in the code. Does anyone have any ideas why Deisgner is complaining?

    Read the article

  • How could I make this display for listbox?

    - by baron
    Hello everyone, I have a databound listbox which is actually displaying two columns of data. It is displayed as follows: <UserControl.Resources> <DataTemplate x:Key="AlignedPairs"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="*" /> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="10" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <TextBlock Text="{Binding Fruits}" Grid.Column="0" /> <TextBlock Text="->" TextAlignment="Center" Grid.Column="1" /> <TextBlock Text="{Binding Colors}" Grid.Column="3" /> </Grid> </DataTemplate> </UserControl.Resources> <ListBox Name="lbStuff" Grid.ColumnSpan="2" Grid.Row="1" ItemTemplate="{StaticResource AlignedPairs}"> <ListBox.ItemContainerStyle> <Style TargetType="ListBoxItem"> <Setter Property="HorizontalContentAlignment" Value="Stretch" /> </Style> </ListBox.ItemContainerStyle> </ListBox> Then Itemsource set in codebehind. Based on some logic however, I would like to set either a line or a item in one of the columns, e.g. a fruit to red, or the line to bold. I have code to work out which Fruit or Color I would like to differentiate (by color/bold) in the code behind, but I can't figure out, especially given the custom listbox display, how I could go about setting a particular item to a different color/bold. Does anyone have any ideas? Let me know if any further code is required. Cheers.

    Read the article

  • IntelliSense and Folding Editor Not Working in Visual Studio 2008 SP1 for Certain Files Only

    - by cplotts
    Ok, I have an issue that is driving me nuts. In certain xaml files only, neither IntelliSense nor the folding editor is working. I have noticed that if I delete the local namespace and add it back, the folding editor starts working. If I delete the local namespace and don't add it back, IntelliSense starts working as well. Of course, I need to remember to add that namespace declaration back before I compile and/or check in ... which is annoying. How can you fix this?

    Read the article

  • Databinding items to Canvas

    - by Jo-wen
    I have a userControl that contains a canvas. I would like to databind items to it so they are positioned automagically. Here's a great example that shows how to databind items on a canvas, but I want it to work on my specific userControl. (I believe it's not possible to specify a userControl in a ItemsPanelTemplate)

    Read the article

  • Problem using Blend 3 Interaction.Behaviours in VS2010

    - by Andre Luus
    There seems to be a problem with support for the Interactivity namespace of Blend 3 in the VS2010 xaml editor. I have the following installed: VS2010 Blend 3 + Blend 3 SDK I am trying to compile a demo project that is targeted at .Net 4 Client Profile and has a reference to System.Windows.Interactivity (in the Blend 3 folder). In the object browser everything appears to be fine. I can also access Interaction.Behaviours from code-behind, but if I put the namespace xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity" in the xaml file and try to use it, the intellisense is blank. If I copy something in there anyway, the compiler says: The tag 'Interaction.Behaviors' does not exist in XML namespace 'http://schemas.microsoft.com/expression/2010/interactivity'. Do I need to install Blend 4 RC or something?

    Read the article

  • How to Read Device Data From COM

    - by Aamir Khurshid
    I have one device which sends data on COM port say on COM13, now i want to read that data and display it in the RichtextBox or in any text control , i have written the application with the help of IO and IO.Ports but comport.DataRecived event does not fire,even though device is sending data on that port, I have some software on which i define the port number and it successfully display data ,which insure me that data is reciving on the Port but i am unable to recive, is there any way i can read data? Regards, Aamir

    Read the article

  • xaml : Retrigger opacity animation on multiple conditions

    - by Sdry
    I have a problem figuring out how datatriggers and multidatatriggers work. I am trying to display a message, and depending on the type of message keep it displayed( + having a background), or having it fade out by a double animation on the opacity property (+ having a transparent background). My xaml view has a game object as datacontext, which has a dependency property of type GameMessage, of which the constructor looks like this: public GameMessage(bool containsMessage, string message, bool canFadeAway) { ContainsMessage = containsMessage; Message = message; CanFadeAway = canFadeAway; } pretty straight forward, I want to display the message when ContainsMessage =equals true, and trigger a fade out animation if canFadeAway equals true. But also set the background based on canFadeAway. <Canvas Name="messageCanvas" Width="300" Height="100" Style="{StaticResource fadeInOut}"> <TextBlock Name="txtMessage" Text="{Binding Path=GameMessage.Message}" Canvas.Top="25" Canvas.Left="0" Foreground="{StaticResource MessageForegroundBrush}"> </TextBlock> </Canvas> Now, the Style and triggers is where I get into trouble: <Style.Triggers> <MultiDataTrigger> <MultiDataTrigger.Conditions> <Condition Binding="{Binding Path=GameMessage.ContainsMessage}" Value="True"/> <Condition Binding="{Binding Path=GameMessage.CanFadeAway}" Value="False"/> </MultiDataTrigger.Conditions> <Setter Property="Background" Value="{StaticResource MessageBackgroundBrush}" /> <Setter Property="Opacity" Value="8" /> </MultiDataTrigger> <MultiDataTrigger> <MultiDataTrigger.Conditions> <Condition Binding="{Binding Path=GameMessage.ContainsMessage}" Value="True"/> <Condition Binding="{Binding Path=GameMessage.CanFadeAway}" Value="True"/> </MultiDataTrigger.Conditions> <Setter Property="Background" Value="Transparent" /> <Setter Property="Opacity" Value="8" /> </MultiDataTrigger> <DataTrigger Binding="{Binding Path=GameMessage.CanFadeAway}" Value="True"> <DataTrigger.EnterActions> <BeginStoryboard > <Storyboard BeginTime="0:0:0" > <DoubleAnimation Storyboard.TargetProperty="Opacity" From="8" To="0" Duration="0:0:1" BeginTime="0:0:0" /> </Storyboard> </BeginStoryboard> </DataTrigger.EnterActions> <DataTrigger.ExitActions> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetProperty="Opacity" To="8" Duration="0:0:0.1" /> </Storyboard> </BeginStoryboard> </DataTrigger.ExitActions> </DataTrigger> </Style.Triggers> </Style> The problem is in resetting the opacity when the GameMessage Property ( of type GameMessage) is of type true,msg",true, and gets replaced by a GameMessage object of the same kind. The opcacity remains 0, and messages only get restored again when I have a message of kind true,"msg,false. After the animation, the opacity is 0, and where I would expect the second multidatatrigger to set it back to 8, and then have the animation performed by the Datatrigger, it doesnt. What would be the best way to get this working ?

    Read the article

  • Web browser.navigate("www.somesite.com") Load page in window but Webbrowser.Document returns Null

    - by Waseem
    Hi.. I am using Web browser control in a window form. Here i am navigating to some site with 1 parameter. It is loading the page into web browser but when i am looking for webbrowser.document to find some html tags so it is showing NULL for it. I want to find out All Anchor tags in webbrowse Loaded page. Following is my code. webChatPage.Navigate(ConfigurationManager.AppSettings["ServerURL"].ToString() + "/somepage.php?someparameter=" + sessionId); HtmlDocument hDoc = webChatPage.Document; //hDoc = NULL in debugging HtmlElementCollection aTag = hDoc.Links; MessageBox.Show(aTag.Count.ToString()); If there is any solution then help me out.

    Read the article

  • MVVM View-First Approach How Change View

    - by CodeWeasel
    Hi everybody, Does anybody have an idea how to change screens (views) in a MVVM View-First-Approach (The view instantiates the ViewModel: DataContext="{Binding Source={StaticResource VMLocator}, Path=Find[EntranceViewModel]}" ) For example: In my MainWindow (Shell) I show a entrance view with a Button "GoToBeach". <Window> <DockPanel> <TextBox DockPanel.Dock="Top" Text="{Binding Title}" /> <view.EntranceView DockPanel.Dock="Top" /> </DockPanel> </Window> When the button is clicked I want to get rid of the "EntranceView" and show the "BeachView". I am really curious if somebody knows a way to keep the View-First Approach and change the screen (view) to the "BeachView". I know there are several ways to implement it in a ViewModel-First Approach, but that is not the question. Perhabs I missed something in my mvvm investigation and can't see the wood for the trees... otherwise i am hoping for a inspiring discussion.

    Read the article

  • How does FallbackValue work with a MultiBiding?

    - by Will
    I ask because it doesn't seem to work. Assume we're binding to the following object: public class HurrDurr { public string Hurr {get{return null;}} public string Durr {get{return null;}} } Well, it would appear that if we used a MultiBinding against this the fallback value would be shown, right? <TextBlock> <TextBlock.Text> <MultiBinding StringFormat="{}{0} to the {1}" FallbackValue="Not set! It works as expected!)"> <Binding Path="Hurr"/> <Binding Path="Durr"/> </MultiBinding> </TextBlock.Text> </TextBlock> However the result is, in fact, " to the ". Even forcing the bindings to return DependencyProperty.UnsetValue doesn't work: <TextBlock xmnlns:base="clr-namespace:System.Windows;assembly=WindowsBase"> <TextBlock.Text> <MultiBinding StringFormat="{}{0} to the {1}" FallbackValue="Not set! It works as expected!)"> <Binding Path="Hurr" FallbackValue="{x:Static base:DependencyProperty.UnsetValue}" /> <Binding Path="Durr" FallbackValue="{x:Static base:DependencyProperty.UnsetValue}" /> </MultiBinding> </TextBlock.Text> </TextBlock> Tried the same with TargetNullValue, which was also a bust all the way around. So it appears that MultiBinding will never ever use FallbackValue. Is this true, or am I missing something?

    Read the article

  • Dynamically add event to custom control (Confirm Message Box)

    - by Nyein Nyein Chan Chan
    I have created a custom cofirm message box control and I created an event like this- [Category("Action")] [Description("Raised when the user clicks the button(ok)")] public event EventHandler Submit; protected virtual void OnSubmit(EventArgs e) { if (Submit != null) Submit(this, e); } The Event OnSubmit occurs when user click the OK button on the Confrim Box. void IPostBackEventHandler.RaisePostBackEvent(string eventArgument) { OnSubmit(e); } Now I am adding this OnSubmit Event Dynamically like this- In aspx- <my:ConfirmMessageBox ID="cfmTest" runat="server" ></my:ConfirmMessageBox> <asp:Button ID="btnCallMsg" runat="server" onclick="btnCallMsg_Click" /> <asp:TextBox ID="txtResult" runat="server" ></asp:TextBox> In cs- protected void btnCallMsg_Click(object sender, EventArgs e) { cfmTest.Submit += cfmTest_Submit;//Dynamically Add Event cfmTest.ShowConfirm("Are you sure to Save Data?"); //Show Confirm Message using Custom Control Message Box } protected void cfmTest_Submit(object sender, EventArgs e) { txtResult.Text = "User Confirmed";//I set the text to "User Confrimed" but it's not displayed txtResult.Focus();//I focus the textbox but I got Error } The Error I got is- System.InvalidOperationException was unhandled by user code Message="SetFocus can only be called before and during PreRender." Source="System.Web" So, when I dynamically add and fire custom control's event, there is an error in Web Control. If I add event in aspx file like this, <my:ConfirmMessageBox ID="cfmTest" runat="server" OnSubmit="cfmTest_Submit"></my:ConfirmMessageBox> There is no error and work fine. Can anybody help me to add event dynamically to custom control? Thanks.

    Read the article

  • Why does KeyDown event not have access to the current value of bound variable?

    - by Edward Tanguay
    In the example below: I start program, type text, click button, see text above. Press ENTER see text again. BUT: I start program, type text, press ENTER, see no text. It seems that the KeyDown event doesn't get access to the current value of the bound variable, as if it is always "one behind". What do I have to change so that when I press ENTER I have access to the value that is in the textbox so I can add it to the chat window? XAML: <Window x:Class="TestScroll.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="290" Width="300" Background="#eee"> <StackPanel Margin="10"> <ScrollViewer Height="200" Width="260" Margin="0 0 0 10" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto"> <TextBlock Text="{Binding TextContent}" Background="#fff"/> </ScrollViewer> <StackPanel HorizontalAlignment="Left" Orientation="Horizontal"> <TextBox x:Name="TheLineTextBox" Text="{Binding TheLine}" Width="205" Margin="0 0 5 0" KeyDown="TheLineTextBox_KeyDown"/> <Button Content="Enter" Click="Button_Click"/> </StackPanel> </StackPanel> </Window> Code-Behind: using System; using System.Windows; using System.Windows.Input; using System.ComponentModel; namespace TestScroll { public partial class Window1 : Window, INotifyPropertyChanged { #region ViewModelProperty: TextContent private string _textContent; public string TextContent { get { return _textContent; } set { _textContent = value; OnPropertyChanged("TextContent"); } } #endregion #region ViewModelProperty: TheLine private string _theLine; public string TheLine { get { return _theLine; } set { _theLine = value; OnPropertyChanged("TheLine"); } } #endregion public Window1() { InitializeComponent(); DataContext = this; TheLineTextBox.Focus(); } private void Button_Click(object sender, RoutedEventArgs e) { AddLine(); } void AddLine() { TextContent += TheLine + Environment.NewLine; } private void TheLineTextBox_KeyDown(object sender, KeyEventArgs e) { if (e.Key == Key.Return) { AddLine(); } } #region INotifiedProperty Block public event PropertyChangedEventHandler PropertyChanged; protected void OnPropertyChanged(string propertyName) { PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) { handler(this, new PropertyChangedEventArgs(propertyName)); } } #endregion } }

    Read the article

  • Cocoa nextEventMatchingMask not receiving NSMouseMoved event

    - by Jonny
    Hello, I created a local event loop and showed up a borderless window (derived from NSPanel), I found in the event loop there's no NSMouseMoved event received, although I can receive Mouse button down/up events. What should I do to get the NSMouseMoved events? I found making the float window as key window can receive the NSMouseMoved events, but I don't want to change key window. And it appears this is possible, because I found after clicking the test App Icon in System Dock Bar, I can receive the mousemoved events, and the key window/mainwindow are unchanged. Here's the my test code: (Create a Cocoa App project names FloatWindowTest, and put a button to link it with the onClick: IBAction). Thanks in advance! -Jonny #import "FloatWindowTestAppDelegate.h" @interface FloatWindow : NSPanel @end @interface FloatWindowContentView : NSView @end @implementation FloatWindowTestAppDelegate @synthesize window; - (void)delayedAction:(id)sender { // What does this function do? // 1. create a float window // 2. create a local event loop // 3. print out the events got from nextEventMatchingMask. // 4. send it to float window. // What is the problem? // In local event loop, althrough the event mask has set NSMouseMovedMask // there's no mouse moved messages received. // FloatWindow* floatWindow = [[FloatWindow alloc] init]; NSEvent* event = [NSApp currentEvent]; NSPoint screenOrigin = [[self window] convertBaseToScreen:[event locationInWindow]]; [floatWindow setFrameTopLeftPoint:screenOrigin]; [floatWindow orderFront:nil]; //Making the float window as Key window will work, however //change active window is not anticipated. //[floatWindow makeKeyAndOrderFront:nil]; BOOL done = NO; while (!done) { NSAutoreleasePool* pool = [NSAutoreleasePool new]; NSUInteger eventMask = NSLeftMouseDownMask| NSLeftMouseUpMask| NSMouseMovedMask| NSMouseEnteredMask| NSMouseExitedMask| NSLeftMouseDraggedMask; NSEvent* event = [NSApp nextEventMatchingMask:eventMask untilDate:[NSDate distantFuture] inMode:NSDefaultRunLoopMode dequeue:YES]; //why I cannot get NSMouseMoved event?? NSLog(@"new event %@", [event description]); [floatWindow sendEvent:event]; [pool drain]; } [floatWindow release]; return; } -(IBAction)onClick:(id)sender { //Tried to postpone the local event loop //after return from button's mouse tracking loop. //but not fixes this problem. [[NSRunLoop currentRunLoop] performSelector:@selector(delayedAction:) target:self argument:nil order:0 modes:[NSArray arrayWithObject:NSDefaultRunLoopMode]]; } @end @implementation FloatWindow - (id)init { NSRect contentRect = NSMakeRect(200,300,200,300); self = [super initWithContentRect:contentRect styleMask:NSTitledWindowMask backing:NSBackingStoreBuffered defer:YES]; if (self) { [self setLevel:NSFloatingWindowLevel]; NSRect frameRect = [self frameRectForContentRect:contentRect]; NSView* view = [[[FloatWindowContentView alloc] initWithFrame:frameRect] autorelease]; [self setContentView:view]; [self setAcceptsMouseMovedEvents:YES]; [self setIgnoresMouseEvents:NO]; } return self; } - (BOOL)becomesKeyOnlyIfNeeded { return YES; } - (void)becomeMainWindow { NSLog(@"becomeMainWindow"); [super becomeMainWindow]; } - (void)becomeKeyWindow { NSLog(@"becomeKeyWindow"); [super becomeKeyWindow]; } @end @implementation FloatWindowContentView - (BOOL)acceptsFirstMouse:(NSEvent *)theEvent { return YES; } - (BOOL)acceptsFirstResponder { return YES; } - (id)initWithFrame:(NSRect)frameRect { self = [super initWithFrame:frameRect]; if (self) { NSTrackingArea* area; area = [[NSTrackingArea alloc] initWithRect:frameRect options:NSTrackingActiveAlways| NSTrackingMouseMoved| NSTrackingMouseEnteredAndExited owner:self userInfo:nil]; [self addTrackingArea:area]; [area release]; } return self; } - (void)drawRect:(NSRect)rect { [[NSColor redColor] set]; NSRectFill([self bounds]); } - (BOOL)becomeFirstResponder { NSLog(@"becomeFirstResponder"); return [super becomeFirstResponder]; } @end

    Read the article

  • AvalonDock + UserControl + DataGrid + ContextMenu command routing issue

    - by repka
    I have this kind of layout: <Window x:Class="DockAndMenuTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:ad="clr-namespace:AvalonDock;assembly=AvalonDock" Title="MainWindow" Height="350" Width="525"> <ad:DockingManager> <ad:DocumentPane> <ad:DockableContent Title="Doh!"> <UserControl> <UserControl.CommandBindings> <CommandBinding Command="Zoom" Executed="ExecuteZoom" CanExecute="CanZoom"/> </UserControl.CommandBindings> <DataGrid Name="_evilGrid"> <DataGrid.Resources> <Style TargetType="DataGridRow"> <Setter Property="ContextMenu"> <Setter.Value> <ContextMenu> <MenuItem Command="Zoom"/> </ContextMenu> </Setter.Value> </Setter> </Style> </DataGrid.Resources> </DataGrid> </UserControl> </ad:DockableContent> </ad:DocumentPane> </ad:DockingManager> </Window> Briefly: ContextMenu is set for each DataGridRow of DataGrid inside UserControl, which in its turn is inside DockableContent of AvalonDock. Code-behind is trivial as well: public partial class MainWindow { public MainWindow() { InitializeComponent(); _evilGrid.ItemsSource = new[] { Tuple.Create(1, 2, 3), Tuple.Create(4, 4, 3), Tuple.Create(6, 7, 1), }; } private void ExecuteZoom(object sender, ExecutedRoutedEventArgs e) { MessageBox.Show("zoom !"); } private void CanZoom(object sender, CanExecuteRoutedEventArgs e) { e.CanExecute = true; } } So here's the problem: right-clicking on the selected row (if it it was selected before the right click) my command comes out disabled. The command is "Zoom" in this case, but can be any other, including a custom one. If I get rid of either docking or UserControl around my grid there are no problems. ListBox doesn't have this issue either. So I don't know what's at fault here. SNOOP shows that in cases when this propagation fails, instead of UserControl, CanExecute is handled by PART_ShowContextMenuButton (Button), which is part of docking header. I've had other issues with UI command propagation within UserControls hosted inside AvalonDock, but this one is the easiest to reproduce.

    Read the article

  • Focus In An ItemsControl

    - by Andrew
    I have an ItemsControl that uses a DataTemplate. The DataTemplate contains a TextBox, which can receive keyboard focus. I need to be able to move the keyboard focus from the currently focused TextBox in the DataTemplate to the next TextBox, as if the Tab key has been pressed. I've noticed that there is a UIElement.MoveFocus() method, but this begs the question as to which UIElement should be used to call the method. This is probably the reason why I haven't gotten this method to work for me... Any help would be really appreciated! Thanks, Andrew

    Read the article

  • Progress Bar restarts

    - by Rishi Kasnia
    I have a DataGrid and in the Data Template of a DataGridTemplateColumn, i have added a Progress bar. now every time when mouse overs the rows of the data grid. my progress bar restarts its value from 0. I actually changes the Background and border property of the Row from triggers which i have defined in the control template of the Data Grid. Any Suggestions...

    Read the article

  • How can I drag and drop a xaml activity to a WF4 rehosted designer?

    - by Louis Rhys
    I understand that the WorkflowDesigner can receive a dragged item in several ways, for example: By dragging an item from the toolbox and dropping it on the designer: an empty activity of that type will be inserted on the designer at the drop location. One can also drag an activity from the designer and drop it on another location in the designer, the dragged activity will be inserted at the drop location as well. Is it possible that similar to these two drag and drop mechanism, I can drag a xaml activity to the designer? What I have in mind is this, Let's say you have a ListView containing several xaml files. I want to be able to drag one of the ListView items (ie one of the xaml files), and when I drag it over the designer it will act as if I drag something from the toolbox (except the activity will be supplied from the xaml). I know I can create a runtime Activity from the file by using ActivityXamlServices.Load(filename), and I want this activity to be inserted at the drop location. But how to tell the application to understand this when I drag and drop?

    Read the article

  • WFP: How do you properly Bind a DependencyProperty to the GUI

    - by Robert Ross
    I have the following class (abreviated for simplicity). The app it multi-threaded so the Set and Get are a bit more complicated but should be ok. namespace News.RSS { public class FeedEngine : DependencyObject { public static readonly DependencyProperty _processing = DependencyProperty.Register("Processing", typeof(bool), typeof(FeedEngine), new FrameworkPropertyMetadata(true, FrameworkPropertyMetadataOptions.AffectsRender)); public bool Processing { get { return (bool)this.Dispatcher.Invoke( DispatcherPriority.Normal, (DispatcherOperationCallback)delegate { return GetValue(_processing); }, Processing); } set { this.Dispatcher.BeginInvoke(DispatcherPriority.Normal, (SendOrPostCallback)delegate { SetValue(_processing, value); }, value); } } public void Poll() { while (Running) { Processing = true; //Do my work to read the data feed from remote source Processing = false; Thread.Sleep(PollRate); } // } } } Next I have my main form as the following: <Window x:Class="News.Main" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:converter="clr-namespace:News.Converters" xmlns:local="clr-namespace:News.Lookup" xmlns:rss="clr-namespace:News.RSS" Title="News" Height="521" Width="927" Initialized="Window_Initialized" Closing="Window_Closing" > <Window.Resources> <ResourceDictionary> <converter:BooleanConverter x:Key="boolConverter" /> <converter:ArithmeticConverter x:Key="arithConverter" /> ... </ResourceDictionary> </Window.Resources> <DockPanel Name="dockPanel1" SnapsToDevicePixels="False" > <ToolBarPanel Height="37" Name="toolBarPanel" Orientation="Horizontal" DockPanel.Dock="Top" > <ToolBarPanel.Children> <Button DataContext="{DynamicResource FeedEngine}" HorizontalAlignment="Right" Name="btnSearch" ToolTip="Search" Click="btnSearch_Click" IsEnabled="{Binding Path=Processing, Converter={StaticResource boolConverter}}"> <Image Width="32" Height="32" Name="imgSearch" Source="{Resx ResxName=News.Properties.Resources, Key=Search}" /> </Button> ... </DockPanel> </Window> As you can see I set the DataContext to FeedEngine and Bind IsEnabled to Processing. I have also tested the boolConverter separately and it functions (just applies ! (Not) to a bool). Here is my Main window code behind in case it helps to debug. namespace News { /// <summary> /// Interaction logic for Main.xaml /// </summary> public partial class Main : Window { public FeedEngine _engine; List<NewsItemControl> _newsItems = new List<NewsItemControl>(); Thread _pollingThread; public Main() { InitializeComponent(); this.Show(); } private void Window_Initialized(object sender, EventArgs e) { // Load current Feed data. _engine = new FeedEngine(); ThreadStart start = new ThreadStart(_engine.Poll); _pollingThread = new Thread(start); _pollingThread.Start(); } } } Hope someone can see where I missed a step. Thanks.

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 180 181 182 183 184 185 186 187 188 189 190 191  | Next Page >