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  • WFP Textblock in Listbox not clipping properly

    - by Tobias Funke
    Her's what I want: A listbox whose items consist of a stackpanel with two textblocks. The textblocks need to support wrapping, the listbox should not expand, and there should be no horizontal scrollbar. Here's the code I have so far. Copy and paste it into XamlPad and you'll see what I'm talking about. <ListBox Height="300" Width="300" x:Name="tvShows"> <ListBox.Items> <ListBoxItem> <StackPanel> <TextBlock Width="{Binding ElementName=tvShows, Path=ActualWidth}" TextWrapping="Wrap">Lost is an American live-action television series. It follows the lives of plane crash survivors on a mysterious tropical island.</TextBlock> <TextBlock Width="{Binding ElementName=tvShows, Path=ActualWidth}" TextWrapping="Wrap">Lost is an American live-action television series. It follows the lives of plane crash survivors on a mysterious tropical island.</TextBlock> </StackPanel> </ListBoxItem> <ListBoxItem> <StackPanel> <TextBlock Width="{Binding ElementName=tvShows, Path=ActualWidth}" TextWrapping="Wrap">Lost is an American live-action television series. It follows the lives of plane crash survivors on a mysterious tropical island.</TextBlock> <TextBlock Width="{Binding ElementName=tvShows, Path=ActualWidth}" TextWrapping="Wrap">Lost is an American live-action television series. It follows the lives of plane crash survivors on a mysterious tropical island.</TextBlock> </StackPanel> </ListBoxItem> </ListBox.Items> </ListBox> This seems to be doing the job of keeping the textblocks from growing, but there's one problem. The textblocks seem to be slightly larger than the listbox, causing the horizontal scrollbar to appear. This is strange because their widths are bound to the lisbox's ActualWidth. Also, if you add a few more items to the listbox (just cut and paste in XamlPad) causing the vertical scrollbar to appear, the width of the textblocks do not resize to the vertical scrollbar. How do I keep the textblocks inside the listbox, with or without the vertical scrollbar?

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  • How to get the Grid.Row Grid.Column from the selected added control?

    - by younevertell
    How to get the Grid.Row Grid.Column from the added control? Basically I have 16 grids with 4 rows and 4 columns, each grid is added a round button. how to determine which rows and columns the selected round buttons are located respectively in the below MouseEventHandler of mouseover? For mouseclick, there is only round button selected, but for mouseover, there would be a collection of buttons. RoundButton_MouseEnter, RoundButton_MouseLeave, RoundButton_MouseDown, RoundButton_MouseUp Thanks

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  • WPF4 DatePicker - adding time

    - by Chris
    Now that there is an official MS DatePicker in WPF4, I was wondering if there was a way to let it edit the Time part of a DateTime as well. I can't see anything, but it seems rather obvious to have missed out?

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  • how to get TabHeader on trigger

    - by CurlyFro
    i have a tabcontrol. i'm trying to pass the tabcontrol as a parameter to figure out the selected tab item so i can get the tab header name. Binding this doesn't seem to work. ideas? <TabControl Background="#FFF9F9F9" Height="650"> <i:Interaction.Triggers> <i:EventTrigger EventName="SelectionChanged"> <n:ExecuteCommandAction Command="{Binding UpdateTabCommand}" Parameter="{Binding this}"/> </i:EventTrigger> </i:Interaction.Triggers> in my viewmodel constructor i have: _updateTabCommand = new ActionCommand< TabControl>(UpdateTab); private method: public void UpdateTab(TabControl tabControl) { var tabItem = (TabItem)tabControl.SelectedItem;

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  • Trouble applying a simple template

    - by Adam S
    I'm having trouble applying a template to my checkboxes. I have the following template: <ControlTemplate x:Key="TriStateRed" TargetType="{x:Type CheckBox}"> <ControlTemplate.Triggers> <Trigger Property="IsChecked" Value="{x:Null}" > <Setter TargetName="path" Property="Data" Value="M 0 2.5 A 5 2.5 0 1 1 5 5 L 5 8 M 5 10 L 5 10" /> <Setter TargetName="path" Property="Stroke" Value="Red" /> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> However, visual studio gives me the following error: Cannot find the Trigger target 'path'. (The target must appear before any Setters, Triggers, or Conditions that use it.) Can anyone make sense of this?

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  • Problems with binding to Window Height and Width

    - by D.H.
    I have some problems when I try to bind the height and width of a window to properties in my view model. Here is a small sample app to illustrate the problem. This is the code in app.xaml.xs public partial class App : Application { protected override void OnStartup(StartupEventArgs e) { base.OnStartup(e); MainWindow mainWindow = new MainWindow(); MainWindowViewModel mainWindowViewModel = new MainWindowViewModel(); mainWindow.DataContext = mainWindowViewModel; mainWindow.Show(); } } This is MainWindow.xaml: <Window x:Class="TestApp.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Height="{Binding WindowHeight}" Width="{Binding WindowWidth}" BorderThickness="{Binding WindowBorderThickness}"> </Window> And this is the view model: public class MainWindowViewModel { public int WindowWidth { get { return 100; } } public int WindowHeight { get { return 200; } } public int WindowBorderThickness { get { return 8; } } } When the program is started the getters of WindowHeight and WindowBorderThickness (but not WindowWidth) are called, so the height and the border of the window is set properly, but not the width. I then add button that will trigger PropertyChanged for all properties, so that the view model now looks like this: public class MainWindowViewModel : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; public void TriggerPropertyChanges() { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs("WindowWidth")); PropertyChanged(this, new PropertyChangedEventArgs("WindowHeight")); PropertyChanged(this, new PropertyChangedEventArgs("WindowBorderThickness")); } } public ICommand ButtonCommand { get { return new RelayCommand(delegate { TriggerPropertyChanges(); }); } } public int WindowWidth { get { return 100; } } public int WindowHeight { get { return 200; } } public int WindowBorderThickness { get { return 8; } } } Now, when I click the button, the getter of WindowBorderThickness is called, but not the ones for WindowWidth and WindowHeight. It all just seems very weird and inconsistent to me. What am I missing?

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  • Desine time XAML serialization problem in VS2010 Designer

    - by Reporting Avatar
    The wired problem is, in VS 2008, everything works fine. In VS2010 while serializing, it is missing the "ReportDimensionElements" so I'm unable to get the values back from the serialized value back from the XAML. It says, "'ReportDimensionElements' is null" am I missing anything silly. Note: I have marked the ReportDimensionElements class with [DefaultValue(null)] for avoiding {x:Null} being serialized. Will it be causing this by any way? Serialized XAML .Net 3.5 <Report> <Report.CategoricalAxis> <CategoricalAxis> <CategoricalAxis.ReportDimensionElements> <ReportDimensionElements Capacity="4"> <ReportDimensionElement DimensionName="Customer" HierarchyName="Customer Geography" LevelName="Country" /> </ReportDimensionElements> </CategoricalAxis.ReportDimensionElements> </CategoricalAxis> </Report.CategoricalAxis> </Report> .Net 4.0 <Report> <Report.CategoricalAxis> <CategoricalAxis> <CategoricalAxis.ReportDimensionElements> <ReportDimensionElement DimensionName="Customer" HierarchyName="Customer Geography" LevelName="Country" /> </CategoricalAxis.ReportDimensionElements> </CategoricalAxis> </Report.CategoricalAxis> </Report> Great Thanks

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  • How to restrict focus in textbox

    - by Ashish Singhal
    I have a dialog with few controls. There is a TextBox named txtControl and two Buttons Accept and Cancel. I want that once the focus is in txtControl, the focus should not go away, until I click on Accept or Cancel button. If I try to click on any other control without clicking on Accept or Cancel button, then focus should remains in txtControl. Also I don't want to disable or gay out other controls.

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  • XAML PixelGrid to Prevent Blurry Text

    - by Bodekaer
    Hi, Just wanted to share a small Grid I created, which can help prevent blurry text etc. as it adjusts the margin of the Grid to ensure a pixel perfect position and size of the grid. Works great e.g. for inside StackPanels with auto height Labels/TextBlocks. Here is the code: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Media; namespace Controls { class PixelGrid : Grid { protected override void OnRenderSizeChanged(SizeChangedInfo sizeInfo) { // POSITION Vector position = VisualTreeHelper.GetOffset(this); double targetX = Math.Round(position.X, MidpointRounding.ToEven); double targetY = Math.Round(position.Y, MidpointRounding.ToEven); double marginLeft = targetX - position.X; double marginTop = targetY - position.Y; // SIZE double targetHeight = Math.Round(sizeInfo.NewSize.Height, MidpointRounding.ToEven); double targetWidth = Math.Round(sizeInfo.NewSize.Width, MidpointRounding.ToEven); double marginBottom = targetHeight - sizeInfo.NewSize.Height; double marginRight = targetWidth - sizeInfo.NewSize.Width; // Adjust margin to ensure pixel width this.Margin = new Thickness(marginLeft, marginTop, marginRight, marginBottom); base.OnRenderSizeChanged(sizeInfo); } } }

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  • Get the screen height in Android

    - by Dan Bray
    How can I get the available height of the screen in Android? I need to the height minus the status bar / menu bar or any other decorations that might be on screen and I need it to work for all devices. Also, I need to know this in the onCreate function. I know this question has been asked before but I have already tried their solutions and none of them work. Here are some of the things I have tried: I have tested this code on API 7 - 17. Unfortunately, on API 13 there is extra space at bottom both horizontally and vertically and on API 10, 8, and 7 there is not enough space at the bottom both horizontally and vertically. (I have not tested on obsolete API's): Display display = getWindowManager().getDefaultDisplay(); DisplayMetrics metrics = new DisplayMetrics(); display.getMetrics(metrics); screenWidth = metrics.widthPixels; screenHeight = metrics.heightPixels; TypedValue tv = new TypedValue(); if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { if (getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true)) screenHeight -= TypedValue.complexToDimensionPixelSize(tv.data,getResources().getDisplayMetrics()); } int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android"); if (resourceId > 0) screenHeight -= getResources().getDimensionPixelSize(resourceId); This does not take into account the status bar / menu bar: Display display = getWindowManager().getDefaultDisplay(); screenWidth = display.getWidth(); screenHeight = display.getHeight(); Neither does this: Point size = new Point(); getWindowManager().getDefaultDisplay().getSize(size); screenWidth = size.x; screenHeight = size.y; Nor this: Point size = new Point(); getWindowManager().getDefaultDisplay().getRealSize(size); screenWidth = size.x; screenHeight = size.y; This does not work: Display display = getWindowManager().getDefaultDisplay(); DisplayMetrics metrics = new DisplayMetrics(); display.getMetrics(metrics); // since SDK_INT = 1; screenWidth = metrics.widthPixels; screenHeight = metrics.heightPixels; try { // used when 17 > SDK_INT >= 14; includes window decorations (statusbar bar/menu bar) screenWidth = (Integer) Display.class.getMethod("getRawWidth").invoke(display); screenHeight = (Integer) Display.class.getMethod("getRawHeight").invoke(display); } catch (Exception ignored) { // Do nothing } try { // used when SDK_INT >= 17; includes window decorations (statusbar bar/menu bar) Point realSize = new Point(); Display.class.getMethod("getRealSize", Point.class).invoke(display, realSize); screenWidth = realSize.x; screenHeight = realSize.y; } catch (Exception ignored) { // Do nothing } I then used the following code to subtract the height of the status bar and menu bar from the screen height: int result = 0; int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android"); if (resourceId > 0) result = getResources().getDimensionPixelSize(resourceId); screenHeight -= result; result = 0; if (screenHeight >= screenWidth) resourceId = getResources().getIdentifier("navigation_bar_height", "dimen", "android"); else resourceId = getResources().getIdentifier("navigation_bar_height_landscape", "dimen", "android"); if (resourceId > 0) result = getResources().getDimensionPixelSize(resourceId); screenHeight -= result; On API 17 it correctly calculates the height of the status bar and menu bar in portrait but not in landscape. On API 10, it returns 0. I need it to work ideally on all devices or minimum API 7. Any help would be greatly appreciated.

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  • Accessing and manipulating lwpf listbox datatemplate elements

    - by black sensei
    Hello good people , i'm trying to achieve a functionality but i'm don't know how to start it. I'm using vs 2008 sp1 and i'm consuming a webservice which returns a collection (is contactInfo[]) that i bind to a ListBox with little datatemplate on it. <ListBox Margin="-146,-124,-143,-118.808" Name="contactListBox" MaxHeight="240" MaxWidth="300" MinHeight="240" MinWidth="300"> <ListBox.ItemTemplate> <DataTemplate> <TextBlock> <CheckBox Name="contactsCheck" Uid="{Binding fullName}" Checked="contacts_Checked" /><Label Content="{Binding fullName}" FontSize="15" FontWeight="Bold"/> <LineBreak/> <Label Content="{Binding mobile}" FontSize="10" FontStyle="Italic" Foreground="DimGray" /> <Label Content="{Binding email}" FontStyle="Italic" FontSize="10" Foreground="DimGray"/> </TextBlock> </DataTemplate> </ListBox.ItemTemplate> </ListBox> Every works fine so far. so When a checkbox is checked i'll like to access the information of the labels (either the) belonging to the same row or attached to it and append the information to a global variable for example (for each checkbox checked). My problem right now is that i don't know how to do that. Can any one shed some light on how to do that? if you notice Checked="contacts_Checked" that's where i planned to perform the operations. thanks for reading and helping out

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  • Grid related UI design question

    - by younevertell
    Grid related UI design question I want some 16-grid (4 rows and 4 columns) user interface, and fill the grid with some round shapes. I also want to use the MouseOver, mouse left button down, and Mouse Left Button Up events to set the state of grids as selected or not selected. My questions: 1. How fill the grid with some round shapes? by SetColumn and SetRow? 2. How to make the grids respond to the mouse please? Thanks <Grid.ColumnDefinitions> <ColumnDefinition /> <ColumnDefinition /> <ColumnDefinition /> <ColumnDefinition /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition /> <RowDefinition /> <RowDefinition /> <RowDefinition /> </Grid.RowDefinitions>

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  • Extending DataGrid/Changing DataGrids header

    - by drasto
    Is there any way how to override DataGrids header line ? Or at least its behaviour ? I'm trying to implement Outlook-like grouping of the table. That is allow user to drag column header out of the table to the dedicated area to sort by that column (for example XamDataGrid has that feature, you can see how it works here). I cannot use any commercial solutions. I will be thankfull for any experiences, ideas, code, notes or tutorials.

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  • Can't find this.Controls - what am I missing?

    - by Adam S
    Sorry for a potentially dumb question, I am still new at this. I really appreciate your help. Referring to http://stackoverflow.com/questions/1536739/c-get-control-by-name/1536756#1536756 But I don't have a "this.Controls" available. Is there something I am missing here? In other words, when I type "this." and visual studio populates a list of option, there is no "Controls" option.

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  • Window sizing constraints by content

    - by EFraim
    I want the window to respect MinWidth/MinHeight and MaxWidth/MaxHeight specifications of the content control inside. Some suggested using SizeToContent, but this only helps to set the initial window size, not the constraints. Others suggested overriding MeasureOverride and setting window's Min/Max height and width there, but this seems to be somewhat unclean, considering that such a trivial problem should surely have a purely declarative solution. Just to mention another solution which seems reasonable but does not work (and had been previously mentioned in an answer which got deleted): binding MinWidth of the window to MinWidth of the control does not take into account window decorations.

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  • Is it possible to apply NOT(!) operator while DataBinding a property of a control ?

    - by Ashish Ashu
    I have Button control and I have to set the IsEanbled property based on the bool variable. bool IsBoolVariable I want if IsBoolVariable property is true then I want to set the IsEnabled property to false AND when IsBoolVariable property is false then I want to set the IsEnabled property to true. Is it possible to apply not(!) operator while defining the binding as given below <Button IsEnabled = "{Binding Path = **!**IsBoolVariable}" /> I can very well do that by applying convertors , but that is the only way to do that?

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  • Swing: easiest way to align width of [dynamic][static][dynamic] components?

    - by java.is.for.desktop
    What is the easiest way in standard Java Swing to align three components in such a way that: the dynamic widths of Component1 and Component3 are adjusted to be equal, while Component2 (which is in between) has constant width? Imagine we have some resizable JPanel (such as inside a JFrame). Small width should look like this: [----------------whole JPanel----------------] [--Component1--] [Component2] [--Component3--] Big width should look like this: [------------------------whole JPanel------------------------] [------Component1------] [Component2] [------Component3------] Note: I just "trialed-and-errored" with GroupLayout for too long.

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  • F# WPF Form &ndash; the basics

    - by MarkPearl
    I was listening to Dot Net Rocks show #560 about F# and during the podcast Richard Campbell brought up a good point with regards to F# and a GUI. In essence what I understood his point to be was that until one could write an end to end application in F#, it would be a hard sell to developers to take it on. In part I agree with him, while I am beginning to really enjoy learning F#, I can’t but help feel that I would be a lot further into the language if I could do my Windows Forms like I do in C# or VB.NET for the simple reason that in “playing” applications I spend the majority of the time in the UI layer… So I have been keeping my eye out for some examples of creating a WPF form in a F# project and came across Tim’s F# Twitter Stream Sample, which had exactly this…. of course he actually had a bit more than a basic form… but it was enough for me to scrap the insides and glean what I needed. So today I am going to make just the very basic WPF form with all the goodness of a XAML window. Getting Started First thing we need to do is create a new solution with a blank F# application project – I have made mine called FSharpWPF. Once you have the project created you will need to change the project type from a Console Application to a Windows Application. You do this by right clicking on the project file and going to its properties… Once that is done you will need to add the appropriate references. You do this by right clicking on the References in the Solution Explorer and clicking “Add Reference'”. You should add the appropriate .Net references below for WPF & XAMl to work. Once these references are added you then need to add your XAML file to the project. You can do this by adding a new item to the project of type xml and simply changing the file extension from xml to xaml. Once the xaml file has been added to the project you will need to add valid window XAML. Example of a very basic xaml file is shown below… <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="F# WPF WPF Form" Height="350" Width="525"> <Grid> </Grid> </Window> Once your xaml file is done… you need to set the build action of the xaml file from “None” to “Resource” as depicted in the picture below. If you do not set this you will get an IOException error when running the completed project with a message along the lines of “Cannot locate resource ‘window.xaml’ You then need to tie everything up by putting the correct F# code in the Program.fs to load the xaml window. In the Program.fs put the following code… module Program open System open System.Collections.ObjectModel open System.IO open System.Windows open System.Windows.Controls open System.Windows.Markup [<STAThread>] [<EntryPoint>] let main(_) = let w = Application.LoadComponent(new System.Uri("/FSharpWPF;component/Window.xaml", System.UriKind.Relative)) :?> Window (new Application()).Run(w) Once all this is done you should be able to build and run your project. What you have done is created a WPF based window inside a FSharp project. It should look something like below…   Nothing to exciting, but sufficient to illustrate the very basic WPF form in F#. Hopefully in future posts I will build on this to expose button events etc.

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