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  • WPF: Is VerticalAlignment inherited by nested containers?

    - by zxcvbnm
    I'd like to have the nested containers inherit that property, but when I set it in the outermost one I'm not sure if it's working. It either is working but I'm not getting the results I want, or maybe I'd have to set up a property somewhere for it to carry. Assuming that a) it is possible to do it and b) I'd have to change a property somewhere, would that have any side effects I should be aware of?

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  • WPF : Command routing for Keyboard shortcuts.

    - by Sprotty
    Basically I want to create a keyboard shortcut which is valid within the scope of a window, and not just enabled when focus is within the control that binds it. in more detail.... I have a window which has 3 controls a toolbar textbox Custom Control The toolbar has a button bound to the Command CustomCommands.CmdA and linked to 'Ctrl-T'. My Custom Control can process CmdA. When I run the app and click on my custom control CmdA is enabled and works fine. Also Ctrl-T cause the command to fire. However when I select the text box, my custom command CmdA becomes disabled. I can rectify this by setting the command target for CmdA's button. Now when I select the textBox, CmdA is still enabled. But the Keyboard shortcut Ctrl-T does nothing. Is there any easy way to change the scope of keyboard shortcuts? Or do I need to catch the keypress somewhere lower down, and work out which Command it relates to and route it myself (if so is there a framework within which to do this?) Many Thanks Simon

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  • WPF MVVM Cancel Edit

    - by terkri
    How can I implement cancelation of editing an object using MVVM. For example: I have a list of customers. I choose one customer an click the button "Edit", a dialog window(DataContext is binded to CustomerViewModel) opens and I start editing customer's fields. And then I decide to cancel editing, but the fields of the customer have been already changed, so how can I return a customer to its previous state in MVVM?

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  • Grid does not get auto size wpf

    - by Jasim Khan Afridi
    I have a Grid inside a grid. I want it to to avail maximum size irrespective of window size. Main_Grid should be max width Grid_tool_bar should be max width but infact it is not. I am unable to find the reason. Plz help me out. <Window x:Class="SocialNetworkingApp.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Background="White" WindowStyle="None" HorizontalAlignment="Stretch" WindowState="Normal" AllowsTransparency="True" WindowStartupLocation="CenterScreen"> <Border Margin="0,0,0,0" BorderBrush="Black" BorderThickness="1,1,1,1" > <Grid x:Name="Main_Grid" Background="White" Width="Auto" Height="Auto" Margin="0,0,0,0" HorizontalAlignment="Left" VerticalAlignment="Top"> <Grid.RowDefinitions> <RowDefinition Height="30" /> <RowDefinition Height="25"/> <RowDefinition Height="50"/> <RowDefinition Height="Auto"/> <RowDefinition Height="20"/> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="1*"/> </Grid.ColumnDefinitions> <Grid Name="Title_Bar" Grid.Row="0" VerticalAlignment="Top" ShowGridLines="True" Grid.IsSharedSizeScope="True" MouseDown="Drag_Window" Background="#FF4FA2DA" HorizontalAlignment="Left" Width="766" Height="31"> <Grid.RowDefinitions> <RowDefinition Height="Auto" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="30"/> <ColumnDefinition Width="Auto"/> <ColumnDefinition Width="120" /> </Grid.ColumnDefinitions> </Grid> </Grid> </Border> </Window>

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  • C#/WPF FileSystemWatcher on every extension on every path

    - by BlueMan
    I need FileSystemWatcher, that can observing same specific paths, and specific extensions. But the paths could by dozens, hundreds or maybe thousand (hope not :P), the same with extensions. The paths and ext are added by user. Creating hundreds of FileSystemWatcher it's not good idea, isn't it? So - how to do it? Is it possible to watch/observing every device (HDDs, SD flash, pendrives, etc.)? Will it be efficient? I don't think so... . Every changing Windows log file, scanning file by antyvirus program - it could realy slow down my program with SystemWatcher :(

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  • WPF debug freezes computer with windows 7 64bit

    - by tcables
    Hello, I am using visual studio 2010 on Windows 7 64bit. I compiled and ran a simple application basically a thing a child could make. Well the second it started to run, it froze my computer and rendered it unresponsive. It continues to do this every time and for every application. Any ideas why this is happening?

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  • wpf c# remove eventhandler from scrollviewer

    - by rubentjeuh
    I've got this: <ScrollViewer x:Name="svBegin" CanContentScroll="True"> <Grid x:Name="gGegevensGrid" KeyDown="gGegevensGrid_KeyDown" ScrollViewer.VerticalScrollBarVisibility="Visible"></Grid> As you can see I've got a KeyDown eventhandler on the grid. But when I press the downkey, the scrollviewer scrolls down. Even when I try this, it doesn't work: svBegin.KeyDown += new KeyEventHandler(svBegin_KeyDown); svBegin.KeyDown -= new KeyEventHandler(svBegin_KeyDown); Anybody who knows how to solve this problem? Thanks!

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  • WPF application fails with "bad image format"

    - by H4mm3rHead
    Hi, I have an application build on my x64 computer. It is now build for x86 but on windows XP machines (x86) it fails with the "bad image format". On all Vista and up OS, it runs perfectly on x64 platfomrms. I tracked the problem to my icon. I removed the icon and now it runs fine, anyone got an idea of how on earth this could relate to anything?

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  • Wpf user control button command is not firing in viewmodel

    - by mani1985
    hi, i have a user control in which there is a button. i wrote icommand in the viewmodel for the button to call some function. when i use this user control in some other page ,the user control button click is not working. my xaml Save my view model private ICommand _insertNewNote; public ICommand InsertNewNote { get { if (_insertNewNote == null) { _insertNewNote = new RelayCommand( param = this.InsertNewExceptionNote()); } return _insertNewNote; } } public void InsertNewExceptionNote() { //... } my problem is when i use this user control in some page like this the user control is getting displayed in the page. but the button in the user control is not firing when i click it. user control view model icommand is not at all initialized. please provide me a solution. Thanks in advance.

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  • SSRS Report problem in wpf

    - by Johnny
    DataTable reportData = this.GetReportData(startId, endId, empId, minAmount, reportType); ReportViewer reportViewer = new ReportViewer(); reportViewer.ProcessingMode = ProcessingMode.Local; reportViewer.LocalReport.ReportEmbeddedResource = "PDCL.ERP.Modules.Marketing.Reports.rptDoctorDetail.rdlc"; ReportDataSource ds = new ReportDataSource(); ds.Name = "DoctorDetail_Report"; ds.Value = reportData; reportViewer.LocalReport.DataSources.Add(ds); reportViewer.RefreshReport(); this.WindowsFrmHost.Child = reportViewer; this is my code.I'm using SSRS but the viewer only shows but not any data. Why..?

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  • Dynamically update Font Size of application with a single trigger in WPF

    - by Sukan
    I have an application which has different font sizes for different controls say Button: 10, TextBlock : 12 etc. I want to give options to the user where he can select any one of the below say Normal , Small, Big, Bigger. Suppose one selects "small" I would want to decrease every distinct font size by 2. If "Big", I would want to increase every font size by 2. I hope we can do this using converter sending actual font size as parameter and render as per the selected choice if I am not wrong. What will be the best option. Sorry if my doubt is absurd or silly. Thank you.

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  • Silverlight/WPF: Retreiving the size of a `UIElement` once it has been rendered on screen

    - by ondesertverge
    I have the following simple piece of code: var canvas = new Canvas(); foreach (var ztring in strings) { var textblock = new TextBlock(); textblock.Text = ztring; panel.Children.Add(textblock); textblock.Measure(infiniteSize); } At this point I would expect any of the size properties (Height/Width, ActualHeight/ActualWidth, DesiredSize, RenderSize) to give me the size of the textblock. None of them do. ActualHeight always gives 16.0 no matter what size font. ActualWidth changes according to the text length but not the font size. I change the font size on the parent container and not the TextBlock itself. I feel like I am missing some basic element of understanding the manipulation of silverlight elements from within the codebehind. The question is: how do I get the real actual pixel size of my TextBlock?

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  • strange wpf errors on xp machine

    - by Yoav
    I created an application that has two windows. the second one is opened by .showDialog() command from the first window. on Windows 7 everything works fine but when running on XP the first window works fine but when trying to open the second window the application crash. exception message: Provide value on 'System.Windows.Baml2006.TypeConverterMarkupExtension' threw an exception. and now for the weird part: when changing the application and making the second window run first it opens without a problem. when removing the icon from the second window (it's the same file for both windows) it also runs fine. any ideas on how to solve this?

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  • WPF: Reset the positions of scatterviewitems?

    - by sofri
    Hi, I have a scatterview with some items in it which I place with Orientation und Center. Now I want to have the possibility to reset the positions of the scatterviewitems after scaling, rotating and moving them, while the program is running. At the moment I do it this way: private void Reset_ContactTapGesture(object sender, Microsoft.Surface.Presentation.ContactEventArgs e) { item1.Center = new Point(150,150); item1.Orientation = 15; item1.Width = 100; item1.Height = 150; } Is there a better way to do it?

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  • In WPF Not Able to Kill Adobe Acrobat Reader

    - by Blam
    Problem with killing Adobe Acrobat Reader Code used to launch the process nativeProcess = new Process(); nativeProcess.StartInfo.FileName = filePath; nativeProcess.Start(); These are Microsoft Office Files or Adobe Acrobat. Code used to kill if (nativeProcess != null) { try { nativeProcess.Kill(); } catch { } } if (nativeProcess != null) { try { nativeProcess = null; } catch { } } My problem is that Adobe Acrobat Reader does not Kill() when the app is running as a Citrix app. If I log on at the Citrix box and run it as a Desktop app then Acrobat Kill() works. Microsoft Office Kills() fine as both a Citrix app and a Deskop app. User can close Acrobat Reader using the X or close

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  • WPF: Change padding depending of container ?

    - by Alex Ilyin
    I have UserControl named MyUserControl, and another UserControl named MyContainer. I want MyUserControl to have padding 10 if it is placed inside MyContainer and 15 otherwise. Shortly, I want <MyContainer> <MyUserControl> Hello </MyUserControl> </MyContainer> to look like <MyContainer> <UserControl Padding="10"> Hello </UserControl> <MyContainer> and <MyUserControl> Hello </MyUserControl> to look like <UserControl Padding="15"> Hello </UserControl>

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  • Why won't my WPF XAML Grid TranslateTransform.X ?

    - by George
    I'm able to change the width/height of the grid using this, so why won't it work when I use (Grid.RenderTransform).TranslateTransform.X as such: <Window.Triggers> <EventTrigger RoutedEvent="Button.Click" SourceName="button"> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetProperty="(Grid.RenderTransform).(TranslateTransform.X)" From="0" To="200" Storyboard.TargetName="grid" Duration="0:0:2" /> </Storyboard> </BeginStoryboard> </EventTrigger> </Window.Triggers> The application loads etc, but nothing happens when the button is clicked. Here is the XAML for my grid: <Grid x:Name="grid" Height="714" Canvas.Left="240" Canvas.Top="8" Width="360" RenderTransformOrigin="0.5,0.5"> <Grid.Background> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="Black" Offset="0"/> <GradientStop Color="White" Offset="1"/> </LinearGradientBrush> </Grid.Background> <Grid.ColumnDefinitions> <ColumnDefinition Width="0*"/> <ColumnDefinition/> </Grid.ColumnDefinitions> </Grid> Note that I've tried many different Canvas.Left values, to no avail.

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  • WPF ObservableCollection in xaml

    - by Cloverness
    Hi, I have created an ObservableCollection in the code behind of a user control. It is created when the window loads: private void UserControl_Loaded(object sender, RoutedEventArgs e) { Entities db = new Entities(); ObservableCollection<Image> _imageCollection = new ObservableCollection<Image>(); IEnumerable<library> libraryQuery = from c in db.ElectricalLibraries select c; foreach (ElectricalLibrary c in libraryQuery) { Image finalImage = new Image(); finalImage.Width = 80; BitmapImage logo = new BitmapImage(); logo.BeginInit(); logo.UriSource = new Uri(c.url); logo.EndInit(); finalImage.Source = logo; _imageCollection.Add(finalImage); } } I need to get the ObservableCollection of images which are created based on the url saved in a database. But I need a ListView or other ItemsControl to bind to it in XAML file like this: But I can't figure it out how to pass the ObservableCollection to the ItemsSource of that control. I tried to create a class and then create an instance of a class in xaml file but it did not work. Should I create a static resource somehow Any help will be greatly appreciated.

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  • Need to keep focus in a wpf content panel

    - by Das
    Hi , I am switching content template of a ListViewItem at run mode to enable editting the item.For that i am showing a panel with Ok and Cancel options and i need the user to select any of those option before moving to anotheritem. Means i want that panel to behave like a modal dialog. Any suggestions ?. Advanced Thanks, Das

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