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  • Bind command to X-button of window title bar

    - by LukePet
    My WPF maintenance window have a toolbar with a button "Exit"; a CommandExit is bind with this button. The CommandExit perform some checks before exit. Now, if I click to close button of the window (x-button of title bar), this checks are ignored. How can I do to bind CommandExit to window x-button?

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  • Stretch panel with splitter

    - by user1153896
    I want to implement a basic WPF layout with three panels and two splitters (Horizontal and Vertical splitter). Two panels on the left and on the bottom has to be callapsable and one panel has to stretch accordingly. Here is a simple XAML: <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"/> <ColumnDefinition Width="5"/> <ColumnDefinition Width="*"/> </Grid.ColumnDefinitions> <StackPanel Background="Aqua" Grid.Column="0" Name="leftPanel" > <TextBlock FontSize="35" Foreground="#58290A" TextWrapping="Wrap">Left Hand Side</TextBlock> </StackPanel> <GridSplitter Grid.Column="1" HorizontalAlignment="Stretch"/> <Grid Grid.Column="2" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"> <Grid.RowDefinitions> <RowDefinition Height="*" /> <RowDefinition Height="5" /> <RowDefinition Height="*" /> </Grid.RowDefinitions> <StackPanel HorizontalAlignment="Stretch" VerticalAlignment="Stretch"> <Label Content="... Clien Area .. Has to Stretch vertically and horizontally" Margin="10"></Label> <Button Click="LeftButton_Click" Margin="10">Close Left Panel</Button> <Button Click="BottomButton_Click" Margin="10">Close Bottom Panel</Button> </StackPanel> <GridSplitter Grid.Row="1" Background="Gray" HorizontalAlignment="Stretch"/> <ListBox Grid.Row="2" Background="Violet" Name="bottomPanel"> <ListBoxItem>Hello</ListBoxItem> <ListBoxItem>World</ListBoxItem> </ListBox> </Grid> </Grid> and codebehind: private void LeftButton_Click(object sender, RoutedEventArgs e) { leftPanel.Visibility = (leftPanel.Visibility == System.Windows.Visibility.Visible)? System.Windows.Visibility.Collapsed : System.Windows.Visibility.Visible; } private void BottomButton_Click(object sender, RoutedEventArgs e) { bottomPanel.Visibility = (bottomPanel.Visibility == System.Windows.Visibility.Visible) ? System.Windows.Visibility.Collapsed : System.Windows.Visibility.Visible; } This code doesn't work as expected :(. Any WPF experts around? to suggest a solution for having Client Area (stretched) and splitter at the same time? DockPanel will work perfectly, but I need splitter! Thanks.

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  • Element host loading time issue with winforms

    - by Vinjamuri
    I have an element host with 3 WPF controls. I am placing the element host on a winform. When my application is coming up, the element host is taking few seconds and the winform is getting displayed as a blank screen. How to fix this? Any ideas are appreciated. Basically, I don't want to display the blank screen as it looks ugly when the application is coming up.

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  • Possible to use Bindings only for the SourceChanged event?

    - by Schneider
    Basically I want to use the WPF Binding framework to "observe" a property in the data context, and when that value changes to call an event handler. I do not actually want to bind it to any target. Sounds simple but from what I can see Binding is too coupled (to the visual tree and various other bits) to be able to use it flexibly. Any thoughts?

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  • Paste Functionality for WPF DataGrid with DataGridTemplateColumns

    - by zmang
    Hi. I recently started using the WPF Datagrid with DataGridTemplateColumns containing the WPF AutoCompleteBox, but I'm finding trouble in implementing Clipboard.Paste functionality for these DataGridTemplateColumns. I've managed to get Clipboard.Paste working with built-in DataGridColumns via Vishal's guide here, but it doesn't work with DataGridTemplateColumns. Delving into the OnPastingCellClipboardContent method in the DataGridColumn class, it appears that fe.GetBindingExpression(CellValueProperty) is returning null rather than the required BindingExpression. Can anyone point me to the right direction? public virtual void OnPastingCellClipboardContent(object item, object cellContent) { BindingBase binding = ClipboardContentBinding; if (binding != null) { // Raise the event to give a chance for external listeners to modify the cell content // before it gets stored into the cell if (PastingCellClipboardContent != null) { DataGridCellClipboardEventArgs args = new DataGridCellClipboardEventArgs(item, this, cellContent); PastingCellClipboardContent(this, args); cellContent = args.Content; } // Event handlers can cancel Paste of a cell by setting its content to null if (cellContent != null) { FrameworkElement fe = new FrameworkElement(); fe.DataContext = item; fe.SetBinding(CellValueProperty, binding); fe.SetValue(CellValueProperty, cellContent); BindingExpression be = fe.GetBindingExpression(CellValueProperty); be.UpdateSource(); } } Thanks!

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  • WPF - LayoutUpdated event firing repeatedly

    - by Drew Noakes
    I've been adding a bit of animation to my WPF application. Thanks to Dan Crevier's unique solution to animating the children of a panel combined with the awesome WPF Penner animations it turned out to be fairly straightforward to make one of my controls look great and have its children move about with some nice animation. Unfortunately this all comes with a performance overhead. I'm happy to have the performance hit when items are added/removed or the control is resized, but it seems that this perf hit occurs consistently throughout the application's lifetime, even when items are completely static. The PanelLayoutAnimator class uses an attached property to hook the UIElement.LayoutUpdated.aspx) event. When this event fires, render transforms are animated to cause the children to glide to their new positions. Unfortunately it seems that the LayoutUpdated event fires every second or so, even when nothing is happening in the application (at least I don't think my code's doing anything -- the app doesn't have focus and the mouse is steady.) As the reason for the event is not immediately apparent to the event handler, all children of the control have to be reevaluated. This event is being called about once a second when idle. The frequency increases when actually using the app. So my question is, how can I improve the performance here? Any answer that assists would be appreciated, but I'm currently stuck on these sub-questions: What causes the LayoutUpdated event to fire so frequently? Is this supposed to happen, and if not, how can I find out why it's firing and curtail it? Is there a more convenient way within the handler to know whether something has happened that might have moved children? If so, I could bail out early and avoid the overhead of looping each child. For now I will work around this issue by disabling animation when there are more than N children in the panel.

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  • WPF application with MS Access database as a data source

    - by Kay Zed
    I have a Microsoft Access 2010 database. Now, using Visual Studio 2010, I want to create a WPF application and add the database as a data source. The app will have a window with a frame that provides navigation through pages. No problem so far. But: -What is the right way to set up the database in this scenario? Tables only? Or must everything go via queries? (VS2010 talks about views which I assume (?) are queries) -Database data must be updatable and records can be added. Some relationships go through link tables (many-to-many) and there are nullable foreign key relationships. Must I take manual steps to make it work? -While adding the data source VS2010 created an xsd from my Access database. I think the xsd might need further tweaking for the application to work the right way. What if I change my Access database design, I'd have to regenerate the xsd again as well. Is this right, and is it the way it is usually done? OR, should I let the original Access database go and give the application the capability to create new empty databases? -How do you provide controls in a page to step through the records in a table? Is there a special database control? -What is the way (WPF class?) to load records into the data context that displays in a page? (At this level it probably does not matter what type of data source it is.)

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  • wpf 4.0 datagrid template column two-way binding problem

    - by rouwlee
    Hello all! I'm using the datagrid from wpf 4.0. This has a TemplateColumn containing a checkbox. The IsChecked property of the checkbox is set via binding. The problem is that even if I specify the binding mode explicitly to be TwoWay, it works only in one direction. I have to mention that the same code works perfectly in .net 3.5 with the datagrid from the wpf toolkit. Please take a look at the .xaml and .cs contents. Thanks in advance, Roland <Window.Resources> <DataTemplate x:Key="IsSelectedColumnTemplate"> <CheckBox IsChecked="{Binding Path=IsSelected, Mode=TwoWay}" /> </DataTemplate> </Window.Resources> <Grid> <DataGrid x:Name="dataGrid" AutoGenerateColumns="false" CanUserAddRows="False" CanUserDeleteRows="False" HeadersVisibility="Column" ItemsSource="{Binding}" > <DataGrid.Columns> <DataGridTemplateColumn Header="Preselected" x:Name="myIsSelectedColumn" CellTemplate="{StaticResource IsSelectedColumnTemplate}" CanUserSort="True" SortMemberPath="Orientation" Width="Auto" /> </DataGrid.Columns> </DataGrid> </Grid> and the related .cs content: public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); ObservableCollection<DataObject> DataSource = new ObservableCollection<DataObject>(); DataSource.Add(new DataObject()); dataGrid.ItemsSource = DataSource; } } public class DataObject : DependencyObject { public bool IsSelected { get { return (bool)GetValue(IsSelectedProperty); } set { SetValue(IsSelectedProperty, value); } } // Using a DependencyProperty as the backing store for IsSelected. This enables animation, styling, binding, etc... public static readonly DependencyProperty IsSelectedProperty = DependencyProperty.Register("IsSelected", typeof(bool), typeof(DataObject), new UIPropertyMetadata(false, OnIsSelectedChanged)); private static void OnIsSelectedChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e) { // this part is not reached } }

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  • WPF touch and slide/drag animation

    - by George
    I'm trying to create a pretty simple WPF interface, and from what I know this should be mostly possible using pure XAML. What I know I have a pretty basic understanding of WPF so far, however I have a decent grasp on XAML. I know or can work out how to put content in these panels. This isn't the topic of this question. What I don't know I don't know how to animate this interface. I'm not very proficient at binding, however again, that's not the topic of this question. The topic of this question is what would be the best way to animate panels 1-4 (images below) so that they may be dragged (via touch) into view. The number of panels here may be static for the purpose of this question. The panels (1-4) can be stack panels, grids or whatever; their content isnt important. What is important is the container that would contain all 4 panels. The complication in this animation is the other two containers here (Item One/TODO), as they're in the way of a smooth animation. If it makes this question simpler, the touch features can be ignored for now, and a simple button push can slide the containers across. One Two

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  • TextBlock Wrapping in WPF Layout

    - by Joel Martinez
    Hi, I'm trying to figure out how to do something similar to the twitter silverlight app that Scott Guthrie demoed recently in WPF: http://weblogs.asp.net/scottgu/archive/2010/03/18/building-a-windows-phone-7-twitter-application-using-silverlight.aspx Unfortunately, I seem to be having a hard time understanding the wpf layout system in some fundamental way. I've been trying various combinations of horizontalalignment/stretch, width/auto at different levels in the hierarchy, and I can't seem to get the "message" textblock to wrap without assigning an explicit width. All I want is for the text to wrap based on the width of the window (or whatever is the parent container). <Window x:Class="TweeterWin.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="300" Width="300" Loaded="Window_Loaded"> <ScrollViewer Height="auto" > <ListBox Name="tweetList" Height="auto" > <ListBox.ItemTemplate> <DataTemplate> <StackPanel Orientation="Horizontal" Height="132"> <Image Source="{Binding Avatar}" Height="73" Width="73" VerticalAlignment="Top" Margin="0,10,8,0"/> <StackPanel > <TextBlock Text="{Binding User}" TextWrapping="Wrap" Foreground="#FFC8AB14" FontSize="15" /> <TextBlock Text="{Binding Message}" TextWrapping="Wrap" FontSize="10" /> </StackPanel> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox> </ScrollViewer> </Window> As a follow up, if anyone can send any links my way that might help me understand some of these layout fundamentals. I think I understand the main layout options (canvas, grid, stackpanel, etc.), but I dont' understand why I can't get this textblock to wrap in this scenario. Thanks!

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  • MS Chart in WPF, Setting the DataSource is not creating the Series

    - by Shaik Phakeer
    Hi All, Here I am trying to assign the datasource (using same code given in the sample application) and create a graph, only difference is i am doing it in WPF WindowsFormsHost. due to some reason the datasource is not being assigned properly and i am not able to see the series ("Series 1") being created. wired thing is that it is working in the Windows Forms application but not in the WPF one. am i missing something and can somebody help me? Thanks <Window x:Class="SEDC.MDM.WinUI.WindowsFormsHostWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:wf="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms" xmlns:CHR="clr- namespace:System.Windows.Forms.DataVisualization.Charting;assembly=System.Windows.Forms.Dat aVisualization" Title="HostingWfInWpf" Height="230" Width="338"> <Grid x:Name="grid1"> </Grid> </Window> private void drawChartDataBinding() { System.Windows.Forms.Integration.WindowsFormsHost host = new System.Windows.Forms.Integration.WindowsFormsHost(); string fileNameString = @"C:\Users\Shaik\MSChart\WinSamples\WinSamples\data\chartdata.mdb"; // initialize a connection string string myConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=" + fileNameString; // define the database query string mySelectQuery = "SELECT * FROM REPS;"; // create a database connection object using the connection string OleDbConnection myConnection = new OleDbConnection(myConnectionString); // create a database command on the connection using query OleDbCommand myCommand = new OleDbCommand(mySelectQuery, myConnection); Chart Chart1 = new Chart(); // set chart data source Chart1.DataSource = myCommand; // set series members names for the X and Y values Chart1.Series"Series 1".XValueMember = "Name"; Chart1.Series"Series 1".YValueMembers = "Sales"; // data bind to the selected data source Chart1.DataBind(); myCommand.Dispose(); myConnection.Close(); host.Child = Chart1; this.grid1.Children.Add(host); } Shaik

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  • Multilingual spellcheck on WPF richtextbox

    - by sub-jp
    I need to turn spellcheck on for a richtextbox, and set the language to one the user has picked from a drop down. For now, I'm just testing it by building the richtextbox in xaml and providing a language to the xaml language attribute. I've read two different resources and one says I need to set the language attribute, and the other says I need to set the xml:lang attribute. Neither seems to work. I've tried setting either one to "es" for Spanish, and I've also tried setting both to "es". I've also tried french by setting them to "fr-FR", without success. The only thing that happens is that english words aren't marked, but the other language words are marked as misspelled. I also read that I need to change the keyboard language. This would be a problem for my application as the language within the application needs to be switched on the fly, so having the end user go to their keyboard settings just so spellcheck will work is a problem. However, I've changed my keyboard settings, and spell check still does not work properly. This time it doesn't mark anything as misspelled, even misspelled english words. What am I missing? Edit: some links to my references above http://msdn.microsoft.com/en-us/library/system.windows.controls.spellcheck(v=VS.100).aspx http://www.dev102.com/2008/03/25/customize-spellcheck-on-wpf-text-controls/ http://books.google.com/books?id=clLc5BBHqRMC&pg=PA121&lpg=PA121&dq=C%23+wpf+enable+spellcheck&source=bl&ots=_r59pZRDjP&sig=yHMBc39EHKK5gaRMzxlBaEsY890&hl=en&ei=oXnIS8zWH4G88gaq48yGBw&sa=X&oi=book_result&ct=result&resnum=6&ved=0CBMQ6AEwBQ#v=onepage&q&f=false

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  • Best way to convert wpf triggers to silverlight?

    - by Stewart Armbrecht
    I have developed several custom controls in a wpf application that use triggers. what is the fastest way to convert the code so that I have a single code base that works both in the wpf application and the silverlight applicaiton. Here is a sample of the code: <Style x:Key="sButtonAction" TargetType="Button"> <!--<Setter Property="BitmapEffect" Value="{StaticResource BannerEffect}" />--> <Setter Property="Height" Value="25" /> <Setter Property="Margin" Value="4" /> <Setter Property="Cursor" Value="Hand" /> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="Button"> <Border x:Name="PART_Border" CornerRadius="10" BorderThickness="{StaticResource sBorderThicknessStandard}" BorderBrush="{StaticResource bColorBorder}" Background="{StaticResource ButtonActionBackground}"> <TextBlock x:Name="PART_TextBlock" Margin="5,2,5,2" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="White"> <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" /></TextBlock> </Border> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="True"> <Setter TargetName="PART_TextBlock" Property="Foreground" Value="#990000"></Setter> </Trigger> <Trigger Property="IsPressed" Value="True"> <Setter TargetName="PART_Border" Property="Background" Value="{StaticResource ButtonActionBackgroundSelected}"></Setter> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style>

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  • How to implement DisplayMemberPath for my Wpf UserControl?

    - by Bevan
    I'm writing a WPF User Control for my application, wrapping a ListBox and a few other items. The ListBox has a new ItemTemplate that presents four pieces of information for each item in my list. I can hard code each of the four bindings to specific properties on my list items and they display fine. However, I want my UserControl to be a bit more flexible. On ListBox and ComboBox there is a property DisplayMemberPath (inherited from ItemsControl) that seems to "inject" the appropriate property binding into the standard ItemTemplate. How do I achieve the same result with my user control? I'd like to set up four new properties to allow configuration of the information displayed: public string LabelDisplayPath { get; set; } public string MetricDisplayPath { get; set; } public string TitleDisplayPath { get; set; } public string SubtitleDisplayPath { get; set; } Reviewing ItemsControl.DisplayMemberPath with Reflector seems to go down the rabbit hole, I haven't been able to fathom how it works. Also, if I'm completely off course - and there's another, more "WPF" technique that I should be using instead, please point me in that direction.

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  • Can WPF based ActiveX control use Reg-Free-COM

    - by embnut
    I have a WPF based ActiveX control (COM interop). I am able to use it correctly by registering the control. When I tried to Reg-Free-COM (using manifest files) the control seems to be activated, but the events (such as mouse click, RequestBringIntoView etc) dont respond. Interestingly, Double click and tab key works. I read in the this article http://blogs.msdn.com/karstenj/archive/2006/10/09/activex-wpf-gadget.aspx that " ... These upsides come with a price: the ActiveX control must be registered in the registry, which requires some kind of installation such as an .msi. The default gadget installation process cannot install ActiveX. The ActiveX control can't be access via reg-free COM. ..." Has anybody had a similar experience? Can anyone explain what is going on? Additional details: When the control is activated after it has been registered it appears as part of the COM client's UI. The control does not receive focus, its elements receive it. When using reg-free-com the control does not load correctly. 1) The control receives focus instead of its sub elements 2) The control has areas that are black instead of the windows default color 3) when I tab in and out of the control or double click it, it's subelements receive focus, the control starts receiving events and the black areas are replaced by the correct color

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  • Trouble binding WPF Menu to ItemsSource

    - by chaiguy
    I would like to avoid having to build a menu manually in XAML or code, by binding to a list of ICommand-derived objects. However, I'm experiencing a bit of a problem where the resulting menu has two levels of menu-items (i.e. each MenuItem is contained in a MenuItem): My guess is that this is happening because WPF is automatically generating a MenuItem for my binding, but the "viewer" I'm using actually already is a MenuItem (it's derived from MenuItem): <ContextMenu x:Name="selectionContextMenu" ItemsSource="{Binding Source={x:Static OrangeNote:Note.MultiCommands}}" ItemContainerStyleSelector="{StaticResource separatorStyleSelector}"> <ContextMenu.ItemTemplate> <DataTemplate> <Viewers:NoteCommandMenuItemViewer CommandParameter="{Binding Source={x:Static OrangeNote:App.Screen}, Path=SelectedNotes}" /> </DataTemplate> </ContextMenu.ItemTemplate> </ContextMenu> (The ItemContainerStyleSelector is from http://bea.stollnitz.com/blog/?p=23, which allows me to have Separator elements inside my bound source.) So, the menu is bound to a collection of ICommands, and each item's CommandParameter is set to the same global target (which happens to be a collection, but that's not important). My question is, is there any way I can bind this such that WPF doesn't automatically wrap each item in a MenuItem?

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  • C# WPF DataBind boolean

    - by jtdangelo
    I have been using this website to learn a lot about C# for a while, but this is my first time posting a question. I look forward to hearing back from some of the seasoned C# veterans! I have been working on a C# 4.0 WPF project and need to figure out how to databind a boolean value. I have a reference to my Application.Current object in a window. My "App" object contains a boolean field called "Downloaded" that is true if the user has downloaded information from a web service. I need to databind a textbox's IsEnabled field to this Downloaded value. Any tips? Here is what I have come up with so far. (Any useful links to better learn WPF XAML are greatly appreciated!) C# Code: class MainWindow : Window { ... private App MyApp = App.Current as App; ... } XAML: <TextBox ... IsEnabled="{Binding Source=MyApp, Path=Downloaded}" /> James

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  • Events not sent to WPF based ActiveX control (COM interop) when using Reg-Free-COM

    - by embnut
    I have a WPF based ActiveX control (COM interop). I am able to use it correctly by registering the control. When I tried to Reg-Free-COM (using manifest files) the control seems to be activated, but the events (such as mouse click, RequestBringIntoView etc) dont respond. Interestingly, Double click and tab key works. I read in the this article http://blogs.msdn.com/karstenj/archive/2006/10/09/activex-wpf-gadget.aspx that " ... These upsides come with a price: the ActiveX control must be registered in the registry, which requires some kind of installation such as an .msi. The default gadget installation process cannot install ActiveX. The ActiveX control can't be access via reg-free COM. ..." Has anybody had a similar experience? Can anyone explain what is going on? Additional details: When the control is activated after it has been registered it appears as part of the COM client's UI. The control does not receive focus, its elements receive it. When using reg-free-com the control does not load correctly. 1) The control receives focus instead of its sub elements 2) The control has areas that are black instead of the windows default color 3) when I tab in and out of the control or double click it, it's subelements receive focus, the control starts receiving events and the black areas are replaced by the correct color

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  • Hidden features of WPF and XAML?

    - by Sauron
    Here is a large number of hidden features discussed for variety of languages. Now I am curious about some hidden features of XAML and WPF? One I have found is the header click event of a ListView <ListView x:Name='lv' Height="150" GridViewColumnHeader.Click="GridViewColumnHeaderClickedHandler"> The GridViewColumnHeader.Click property is not listed. Some of relevant features so far: Multibinding combined with StringFormat TargetNullValue to bindings TextTrimming property Markup extensions Adding Aero effect to Window Advanced "caption" properties XAML Converters See also: Hidden features of C# Hidden features of Python Hidden features of ASP.NET Hidden features of Perl Hidden features of Java Hidden features of VB.NET Hidden features of PHP Hidden features of Ruby Hidden features of C And So On........

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  • WPF Sizing of Panels

    - by Mystagogue
    I'm looking for an article or overview of WPF Panel types, that explains the sizing characters of each. For example, here are the panel types: http://msdn.microsoft.com/en-us/library/ms754152.aspx#Panels_derived_elements I've learned (by experiment) that UniformGrid can be given a fixed height, or it can be "auto" where it expands to fit available space. That is great, but what I wanted was for Uniform Grid to shrink to fit its internal content (particularly content that is provided dynamically, at run-time). I don't think it has that ability. So I'd like to know either what other Panel I could use for that purpose, or what Panel I should nest the UniformGrid inside of. But I don't just want an answer to that specific question. I want the sizing dynamics and capabilities of all the Panel types, in summary form, so I can make all these choices as needed. Online I find articles that cover only half the Panel types, and don't give as much information about sizing as I'm describing. Anyone know the link (or book) that has the info I'm seeking? p.s. Since I want the UniformGrid to shrink to the dynamic content I'm providing, I could just keep track of the total height of controls placed within, and then set the height of the UniformGrid. But it would be nice if WPF took care of this for me.

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  • Interception with Unity in Prism v2 for WPF (not working for me)

    - by Bobby Chopra
    I cannot get interception to work with Prism v2 (Oct 2009). I am trying to intercept the Setter for any Public Properties and then fire the PropertyChanged event if the property has changed. I can see that the code gets executed (by stepping through with the debugger or adding a debug point). However, the WPF Window controls that are bound to these properties do not get updated. If I subscribe to these events and print to the console, I can print out the property change notifications. So, if the View has a textbox, which updates the property on the ViewModel, then the property in the ViewModel gets updated. However, if a button on the view (implemented as a DelegateCommand) causes the property to get updated, then the textbox (TwoWay Binding Mode) that is bound to that Property is not updated even though the event is triggered and the console has printed out the information about which property was updated. Has anyone encountered this issue? Here is the sample WPF Application that I have written. Wordpress doesn't allow uploads of zip files, so I renamed it to have a pdf extension (rename the file to have a zip extension). Please let me know what I am doing wrong. Thanks in advance.

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