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  • WPF - TextBlock - Cannot override OnRender

    - by Nitin Chaudhari
    Hi, I am creating a custom control by deriving TextBlock, my intention is to do some custom rendering based on some dependency properties. However the OnRender method is sealed on TextBlock. Although I can get my work done by overriding OnRenderSizeChanged, this is not correct. Any ideas on how can i do it the right way? Thanks in advance.

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  • Animate UserControl in WPF?

    - by sanjeev40084
    I have two xaml file one is MainWindow.xaml and other is userControl EditTaskView.xaml. In MainWindow.xaml it consists of listbox and when double clicked any item of listbox, it displays other window (edit window) from EditView userControl. I am trying to animate this userControl everytime whenever any item from the listbox is double clicked. I added some animation in userControl however the animation only gets run once. How can i make my animation run everytime whenever any item from the listbox is clicked? <ListBox x:Name="lstBxTask" Style="{StaticResource ListBoxItems}" MouseDoubleClick="lstBxTask_MouseDoubleClick"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel> <Rectangle Style="{StaticResource LineBetweenListBox}"/> <StackPanel Orientation="Horizontal"> <TextBlock Text="{Binding Taskname}" Style="{StaticResource TextInListBox}"/> <Button Name="btnDelete" Style="{StaticResource DeleteButton}" Click="btnDelete_Click"/> </StackPanel> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox> <ToDoTask:EditTaskView x:Name="EditTask" Grid.Row="1" Grid.RowSpan="2" Grid.ColumnSpan="2" Visibility="Collapsed"/> In the MainWindow code, there is mouse double click event, which changes the visibility of EditTaskView to Visible. Suggestions?

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  • WPF Separator position

    - by morsanu
    Hey, I'm using a Separator to draw a vertical line inside a Border. At first this was ok because the line needed to be centered, but now I need to position it at a custom x-position from the left border. Is there a way to do that? <Border x:Name="border" ClipToBounds="True" Background="White" BorderBrush="Black" BorderThickness="2"> <Separator BorderBrush="Black" BorderThickness="2"> <Separator.LayoutTransform> <RotateTransform Angle="90" /> </Separator.LayoutTransform> </Separator> </Border>

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  • Dynamic Scoped Resources in WPF/XAML?

    - by firoso
    I have 2 Xaml files, one containing a DataTemplate which has a resource definition for an Image brush, and the other containing a content control which presents this DataTemplate. The data template is bound to a view model class. Everything seems to work EXCEPT the ImageBrush resource, which just shows up white... Any ideas? File 1: DataTemplate for ViewModel <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:vm="clr-namespace:SEL.MfgTestDev.ESS.ViewModel" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d"> <DataTemplate DataType="{x:Type vm:PresenterViewModel}"> <DataTemplate.Resources> <ImageBrush x:Key="PresenterTitleBarFillBrush" TileMode="Tile" Viewbox="{Binding Path=FillBrushDimensions, Mode=Default}" ViewboxUnits="Absolute" Viewport="{Binding Path=FillBrushPatternSize, Mode=Default}" ViewportUnits="Absolute" ImageSource="{Binding Path=FillImage, Mode=Default}"/> </DataTemplate.Resources> <Grid d:DesignWidth="1440" d:DesignHeight="900"> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"/> <ColumnDefinition Width="192"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="120"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <DockPanel HorizontalAlignment="Stretch" Width="Auto" LastChildFill="True" Background="{x:Null}" Grid.ColumnSpan="2"> <Image Source="{Binding Path=ImageSource, Mode=Default}"/> <Rectangle Fill="{DynamicResource PresenterTitleBarFillBrush}"/> </DockPanel> </Grid> </DataTemplate> </ResourceDictionary> File 2: Main Window Class which instanciates the DataTemplate Via it's view model. <Window x:Class="SEL.MfgTestDev.ESS.ESSMainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:vm="clr-namespace:SEL.MfgTestDev.ESS.ViewModel" Title="ESS Control Window" Height="900" Width="1440" WindowState="Maximized" WindowStyle="None" ResizeMode="NoResize" DataContext="{Binding}"> <Window.Resources> <ResourceDictionary Source="PresenterViewModel.xaml" /> </Window.Resources> <ContentControl> <ContentControl.Content> <vm:PresenterViewModel ImageSource="XAMLResources\SEL25YearsTitleBar.bmp" FillImage="XAMLResources\SEL25YearsFillPattern.bmp" FillBrushDimensions="0,0,5,110" FillBrushPatternSize="0,0,5,120"/> </ContentControl.Content> </ContentControl> </Window> And for the sake of completeness! The CodeBehind for the View Model using System; using System.Collections.Generic; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Shapes; namespace SEL.MfgTestDev.ESS.ViewModel { public class PresenterViewModel : ViewModelBase { public PresenterViewModel() { } //DataBindings private ImageSource _imageSource; public ImageSource ImageSource { get { return _imageSource; } set { if (_imageSource != value) { _imageSource = value; OnPropertyChanged("ImageSource"); } } } private Rect _fillBrushPatternSize; public Rect FillBrushPatternSize { get { return _fillBrushPatternSize; } set { if (_fillBrushPatternSize != value) { _fillBrushPatternSize = value; OnPropertyChanged("FillBrushPatternSize"); } } } private Rect _fillBrushDimensions; public Rect FillBrushDimensions { get { return _fillBrushDimensions; } set { if (_fillBrushDimensions != value) { _fillBrushDimensions = value; OnPropertyChanged("FillBrushDimensions"); } } } private ImageSource _fillImage; public ImageSource FillImage { get { return _fillImage; } set { if (_fillImage != value) { _fillImage = value; OnPropertyChanged("FillImage"); } } } } }

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  • [WPF C#]Get UserControl or VisualTree in DataValidation of TextBlock

    - by dalind
    Hy, I have a validator set on the text property of a textblock. For a correct validation I would need the parent usercontrol of the textblock, but the only things I have in the validator are the value object (a string) and the culture (doesn't help either). Does anyone know a way to get certain usercontrols in a class/a method where I have no access to any kind of visual or control of my application. The problem could be solve if I could give the validator the usercontrol or the textblock as parameters, but I didn't find a way to do so.. Thank you very much for your answers. Greets

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  • wpf combobox padding

    - by Jose
    This is a simple question How do you remove the space between the content of a combobox and the border of it. E.g. If the selection of a combobox is "Selection 1" then the "S" is drawn at the very top left of the ComboBox control with no whitespace spacing between it and top left portion of the control. I did this <ComboBox Padding="0"/> Even this: <ComboBox.ItemContainerStyle> <Style TargetType="ComboBoxItem"> <Setter Property="Padding" Value="0"/> </Style> </ComboBox.ItemContainerStyle> The specified ComboBox above is within a ListView GridViewColumn. Maybe that's messing with something. This doesn't remove the padding. Any ideas?

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  • WPF ComboBox TemplateBinding to selected value

    - by Greg R
    I'm trying to create an editable textbox via a drop down of selected values. Basically in Red Only mode I want the drop down to be a disabled textbox. It works fine when I do this with SelectedValue but when I need it to display the dropdown text and not the value. This is what I have: <Style x:Key="EditableDropDownValueOnly" TargetType="ComboBox"> <Setter Property="Width" Value="Auto" /> <Setter Property="FontSize" Value="11" /> <Setter Property="HorizontalAlignment" Value="Left" /> <Setter Property="FontFamily" Value="Verdana" /> <Setter Property="MinWidth" Value="25" /> <Style.Triggers> <Trigger Property="IsReadOnly" Value="True"> <Setter Property="Background" Value="#FFFFFF" /> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="ComboBox"> <TextBox Text="{TemplateBinding SelectedItem, Converter={StaticResource StringCaseConverter}}" BorderThickness="0" Background="Transparent" FontSize="{TemplateBinding FontSize}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" FontFamily="{TemplateBinding FontFamily}" Width="{TemplateBinding Width}" TextWrapping="Wrap"/> </ControlTemplate> </Setter.Value> </Setter> </Trigger> </Style.Triggers> </Style> SelectedItem is a KeyValuePair, since my drop down is bound to a dictionary. I'm trying to display the "Value" element in my template. Is that possible? Thanks a lot!

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  • Populate datagrid using Datacontext in C# WPF

    - by anon
    I'm trying to get data from file. The file first has three lines of text that describes the file, then there is a header for the data below. I've managed to extract that. What I'm having problems is getting the data below the header line. The data below the header line can look like "1 2 3 4 5 6 7 8 9 abc". DataGrid dataGrid1 = new DataGrid(); masterGrid.Children.Add(dataGrid1); using (TextReader tr = new StreamReader(@filename)) { int lineCount = 1; while (tr.Peek() >= 0) { string line = tr.ReadLine(); { string[] data = line.Trim().Split(' '); Dictionary<string, object> sensorData = new Dictionary<string, object>(); for (int i = 0, j = 0; i < data.Length; i++) { //I know that I'm delimiting the data by a space before. //but the data from the text file doesn't necessarily have //just one space between each piece of data //so if I don't do this, spaces will become part of the data. if (String.Compare(data[i]," ") > 0) { sensorData[head[j]] = data[i]; j++; } } sensorDatas.Add(sensorData); sensorData = null; } lineCount++; } } dataGrid1.DataContext = sensorDatas; I can't figure out why this doens't work. If I change "dataGrid1.DataContext = sensorDatas;" to "dataGrid1.ItemsSource = sensorDatas;" then I get the data in the proper columns, but I also get some Raw View data such as: Comparer, Count, Keys, Values as columns, which I don't want. Any insight?

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  • WPF Listbox - Empty List Display Message

    - by David Ward
    Can anyone suggest the best way to display a Textblock (with a text such as "List Empty") so that it's visibility is bound to the Items.Count. I have tried the following code and can't get it to work, so think that I must be doing it wrong. <ListBox x:Name="lstItems" ItemsSource="{Binding ListItems}"> </ListBox> <TextBlock Margin="4" FontStyle="Italic" FontSize="12" Text="List is empty" Visibility="Collapsed"> <TextBlock.Style> <Style TargetType="{x:Type TextBlock}"> <Style.Triggers> <DataTrigger Binding="{Binding ElementName=lstItems, Path=Items.Count}" Value="0"> <Setter Property="Visibility" Value="Visible" /> </DataTrigger> </Style.Triggers> </Style> </TextBlock.Style> </TextBlock>

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  • WPF ComboBox SelectedValue not updating from binding source.

    - by vg1890
    Here's my binding source object: Public Class MyListObject Private _mylist As New ObservableCollection(Of String) Private _selectedName As String Public Sub New(ByVal nameList As List(Of String), ByVal defaultName As String) For Each name In nameList _mylist.Add(name) Next _selectedName = defaultName End Sub Public ReadOnly Property MyList() As ObservableCollection(Of String) Get Return _mylist End Get End Property Public ReadOnly Property SelectedName() As String Get Return _selectedName End Get End Property End Class Here is my XAML: <Window x:Class="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" xmlns:local="clr-namespace:WpfApplication1" > <Window.Resources> <ObjectDataProvider x:Key="MyListObject" ObjectInstance="" /> </Window.Resources> <Grid> <ComboBox Height="23" Margin="24,91,53,0" Name="ComboBox1" VerticalAlignment="Top" SelectedValue="{Binding Path=SelectedName, Source={StaticResource MyListObject}, Mode=OneWay}" ItemsSource="{Binding Path=MyList, Source={StaticResource MyListObject}, Mode=OneWay}" /> <Button Height="23" HorizontalAlignment="Left" Margin="47,0,0,87" Name="btn_List1" VerticalAlignment="Bottom" Width="75">List 1</Button> <Button Height="23" Margin="0,0,75,87" Name="btn_List2" VerticalAlignment="Bottom" HorizontalAlignment="Right" Width="75">List 2</Button> </Grid> </Window> Here's the code-behind: Class Window1 Private obj1 As MyListObject Private obj2 As MyListObject Private odp As ObjectDataProvider Public Sub New() InitializeComponent() Dim namelist1 As New List(Of String) namelist1.Add("Joe") namelist1.Add("Steve") obj1 = New MyListObject(namelist1, "Steve") . Dim namelist2 As New List(Of String) namelist2.Add("Bob") namelist2.Add("Tim") obj2 = New MyListObject(namelist2, "Tim") odp = DirectCast(Me.FindResource("MyListObject"), ObjectDataProvider) odp.ObjectInstance = obj1 End Sub Private Sub btn_List1_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles btn_List1.Click odp.ObjectInstance = obj1 End Sub Private Sub btn_List2_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles btn_List2.Click odp.ObjectInstance = obj2 End Sub End Class When the Window first loads, the bindings hook up fine. The ComboBox contains the names "Joe" and "Steve" and "Steve" is selected by default. However, when I click a button to switch the ObjectInstance to obj2, the ComboBox ItemsSource gets populated correctly in the dropdown, but the SelectedValue is set to Nothing instead of being equal to obj2.SelectedName. Thanks in advance!

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  • Richtext Box formating help in WPF using c#.net

    - by Ashwin
    i am making a project for bulk emailing . In this I have added a richtext box . I want users to enter the email message body in it and want to give them the ability to format .Richtext box should be able to make the content bold,italics, underline , align it right left and center , increase font , decrease font,change color, change the font like Times New Roman depending on the click of the button. Help me how should i go about it. also let me know which references i should add to my project.its urgent guys . please help

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  • Problem with WPF Data Binding Defined in Code Not Updating UI Elements

    - by Ben
    I need to define new UI Elements as well as data binding in code because they will be implemented after run-time. Here is a simplified version of what I am trying to do. Data Model: public class AddressBook : INotifyPropertyChanged { private int _houseNumber; public int HouseNumber { get { return _houseNumber; } set { _houseNumber = value; NotifyPropertyChanged("HouseNumber"); } } public event PropertyChangedEventHandler PropertyChanged; protected void NotifyPropertyChanged(string sProp) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(sProp)); } } } Binding in Code: AddressBook book = new AddressBook(); book.HouseNumber = 123; TextBlock tb = new TextBlock(); Binding bind = new Binding("HouseNumber"); bind.Source = book; bind.Mode = BindingMode.OneWay; tb.SetBinding(TextBlock.TextProperty, bind); // Text block displays "123" myGrid.Children.Add(tb); book.HouseNumber = 456; // Text block displays "123" but PropertyChanged event fires When the data is first bound, the text block is updated with the correct house number. Then, if I change the house number in code later, the book's PropertyChanged event fires, but the text block is not updated. Can anyone tell me why? Thanks, Ben

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  • Mouse position in xaml - wpf

    - by Simon Fox
    Hi all Is it possible to specify the position of the mouse as the value of the Parameter property of a Command in XAML. Something like the following: <UserControl.ContextMenu> <ContextMenu> <MenuItem Header="Create Link" Command="{Binding CreateLink}" CommandParameter="{Binding Mouse.Position}" > </MenuItem> </ContextMenu> </UserControl.ContextMenu>

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  • WPF: Focus in a Window and UserControl

    - by Echilon
    I'm trying to get a UserControl to tab properly and am baffled. The logical tree looks like this. |-Window -Grid -TabControl -TabItem -StackPanel -MyUserControl |-StackPanel -GroupBox -Grid -ComboBox -Textbox1 -Textbox2 Everything works fine, except when the visibility converter for the ComboBox returns Visibility.Collapsed (don't allow user to change database mode), then when textbox1 is selected, instead of being able to tab through the controls in the UserControl, the focus shifts to a button declared at the bottom of the window. Nothing else apart from the controls displayed has TabIndex or FocusManager properties set. I'm banging my head against a brick wall and I must be missing something. I've tried IsFocusScope=True/False, played with FocusedElement and nothing works if that ComboBox is invisible (Visibility.Collapsed). <Window x:Class="MyNamespace.Client.WinInstaller" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" FocusManager.FocusedElement="{Binding ElementName=tabWizard}"> <Window.Resources> <props:Settings x:Key="settings" /> </Window.Resources> <Grid Grid.IsSharedSizeScope="True"> <!-- row and column definitions omitted --> <loc:SmallHeader Grid.Row="0" x:Name="headerBranding" HeaderText="Setup" /> <TabControl x:Name="tabWizard" DataContext="{StaticResource settings}" SelectedIndex="0" FocusManager.IsFocusScope="True"> <TabItem x:Name="tbStart" Height="0"> <StackPanel> <TextBlock Text="Database Mode"/> <loc:DatabaseSelector x:Name="dbSelector" AllowChangeMode="False" TabIndex="1" AvailableDatabaseModes="SQLServer" IsPortRequired="False" DatabaseMode="{Binding Default.DbMode,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" DatabasePath="{Binding Default.DatabasePath,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"/> </StackPanel> </TabItem> ... The top of the user control is below: <UserControl x:Class="MyNamespace.Client.DatabaseSelector" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Name="root" FocusManager.IsFocusScope="True" FocusManager.FocusedElement="{Binding ElementName=cboDbMode}"> <UserControl.Resources> <conv:DatabaseModeIsFileBased x:Key="DatabaseModeIsFileBased"/> <BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter"/> </UserControl.Resources> <StackPanel DataContext="{Binding}"> <GroupBox> <Grid> <!-- row and column definitions omitted --> <Label Content="Database Mode"/> <ComboBox x:Name="cboDbMode" SelectedValue="{Binding ElementName=root,Path=DatabaseMode,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" DisplayMemberPath="Value" SelectedValuePath="Key" TabIndex="1" Visibility="{Binding AllowChangeMode,ElementName=root,Converter={StaticResource BooleanToVisibilityConverter}}" /> <!-- AllowChangeMode is a DependencyProperty on the UserControl --> <Grid><!-- row and column definitions omitted --> <Label "Host"/> <TextBox x:Name="txtDBHost" Text="{Binding ElementName=root,Path=DatabaseHost,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" TabIndex="2" /> <TextBox x:Name="txtDBPort" Text="{Binding ElementName=root,Path=DatabasePortString,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" TabIndex="3" />

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  • Working with Resources in WPF

    - by Coesy
    I am wanting to use the example from http://blogs.microsoft.co.il/blogs/tomershamam/archive/2008/09/22/lt-howto-gt-replace-listview-columns-with-rows-lt-howto-gt.aspx However I don't want to put this into the App.xaml code as this will apply to ALL gridviews, how do I apply this example to a select few gridviews in the application? The Resources look like this <Style TargetType="{x:Type GridViewHeaderRowPresenter}"> <Setter Property="Height" Value="80" /> <Setter Property="LayoutTransform"> <Setter.Value> <TransformGroup> <RotateTransform Angle="-90" /> <ScaleTransform ScaleY="-1" /> </TransformGroup> </Setter.Value> </Setter> </Style> <Style TargetType="{x:Type GridViewRowPresenter}"> <Setter Property="LayoutTransform"> <Setter.Value> <TransformGroup> <RotateTransform Angle="-90" /> <ScaleTransform ScaleY="-1" /> </TransformGroup> </Setter.Value> </Setter> </Style> <LinearGradientBrush x:Key="GridViewColumnHeaderBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#FFFFFFFF" Offset="0"/> <GradientStop Color="#FFFFFFFF" Offset="0.4091"/> <GradientStop Color="#FFF7F8F9" Offset="1"/> </LinearGradientBrush> <LinearGradientBrush x:Key="GridViewColumnHeaderBorderBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#FFF2F2F2" Offset="0"/> <GradientStop Color="#FFD5D5D5" Offset="1"/> </LinearGradientBrush> <LinearGradientBrush x:Key="GridViewColumnHeaderHoverBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#FFBDEDFF" Offset="0"/> <GradientStop Color="#FFB7E7FB" Offset="1"/> </LinearGradientBrush> <LinearGradientBrush x:Key="GridViewColumnHeaderPressBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#FF8DD6F7" Offset="0"/> <GradientStop Color="#FF8AD1F5" Offset="1"/> </LinearGradientBrush> <Style x:Key="GridViewColumnHeaderGripper" TargetType="{x:Type Thumb}"> <Setter Property="Canvas.Right" Value="-9"/> <Setter Property="Width" Value="18"/> <Setter Property="Height" Value="{Binding Path=ActualHeight, RelativeSource={RelativeSource TemplatedParent}}"/> <Setter Property="Padding" Value="0"/> <Setter Property="Background" Value="{StaticResource GridViewColumnHeaderBorderBackground}"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Thumb}"> <Border Background="Transparent" Padding="{TemplateBinding Padding}"> <Rectangle Fill="{TemplateBinding Background}" HorizontalAlignment="Center" Width="1"/> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style TargetType="{x:Type GridViewColumnHeader}"> <Setter Property="HorizontalContentAlignment" Value="Center"/> <Setter Property="VerticalContentAlignment" Value="Center"/> <Setter Property="Background" Value="{StaticResource GridViewColumnHeaderBackground}"/> <Setter Property="BorderBrush" Value="{StaticResource GridViewColumnHeaderBorderBackground}"/> <Setter Property="BorderThickness" Value="0"/> <Setter Property="Padding" Value="2,0,2,0"/> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type GridViewColumnHeader}"> <Grid SnapsToDevicePixels="true"> <Border x:Name="HeaderBorder" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="0,1,0,1"> <Grid> <Grid.RowDefinitions> <RowDefinition MaxHeight="7"/> <RowDefinition/> </Grid.RowDefinitions> <Rectangle Fill="#FFE3F7FF" x:Name="UpperHighlight" Visibility="Collapsed"/> <Border Grid.RowSpan="2" Padding="{TemplateBinding Padding}"> <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="0,0,0,1" x:Name="HeaderContent" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" RecognizesAccessKey="True"> <ContentPresenter.LayoutTransform> <TransformGroup> <ScaleTransform ScaleY="-1" /> <RotateTransform Angle="90" /> </TransformGroup> </ContentPresenter.LayoutTransform> </ContentPresenter> </Border> </Grid> </Border> <Border Margin="1,1,0,0" x:Name="HeaderHoverBorder" BorderThickness="1,0,1,1"/> <Border Margin="1,0,0,1" x:Name="HeaderPressBorder" BorderThickness="1,1,1,0"/> <Canvas> <Thumb x:Name="PART_HeaderGripper" Style="{StaticResource GridViewColumnHeaderGripper}"/> </Canvas> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="true"> <Setter Property="Background" TargetName="HeaderBorder" Value="{StaticResource GridViewColumnHeaderHoverBackground}"/> <Setter Property="BorderBrush" TargetName="HeaderHoverBorder" Value="#FF88CBEB"/> <Setter Property="Visibility" TargetName="UpperHighlight" Value="Visible"/> <Setter Property="Background" TargetName="PART_HeaderGripper" Value="Transparent"/> </Trigger> <Trigger Property="IsPressed" Value="true"> <Setter Property="Background" TargetName="HeaderBorder" Value="{StaticResource GridViewColumnHeaderPressBackground}"/> <Setter Property="BorderBrush" TargetName="HeaderHoverBorder" Value="#FF95DAF9"/> <Setter Property="BorderBrush" TargetName="HeaderPressBorder" Value="#FF7A9EB1"/> <Setter Property="Visibility" TargetName="UpperHighlight" Value="Visible"/> <Setter Property="Fill" TargetName="UpperHighlight" Value="#FFBCE4F9"/> <Setter Property="Visibility" TargetName="PART_HeaderGripper" Value="Hidden"/> <Setter Property="Margin" TargetName="HeaderContent" Value="1,1,0,0"/> </Trigger> <Trigger Property="Height" Value="Auto"> <Setter Property="MinHeight" Value="20"/> </Trigger> <Trigger Property="IsEnabled" Value="false"> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> <Style.Triggers> <Trigger Property="Role" Value="Floating"> <Setter Property="Opacity" Value="0.4082"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type GridViewColumnHeader}"> <Canvas x:Name="PART_FloatingHeaderCanvas"> <Rectangle Fill="#FF000000" Width="{TemplateBinding ActualWidth}" Height="{TemplateBinding ActualHeight}" Opacity="0.4697"/> </Canvas> </ControlTemplate> </Setter.Value> </Setter> </Trigger> <Trigger Property="Role" Value="Padding"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type GridViewColumnHeader}"> <Border x:Name="HeaderBorder" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="0,1,0,1"/> <ControlTemplate.Triggers> <Trigger Property="Height" Value="Auto"> <Setter Property="MinHeight" Value="20"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Trigger> </Style.Triggers> </Style> I have tried creating a usercontrol and sticking that lot in the UserControl.Resources section but it didn't work, I can only get this example to work if i put them into the Application.Resources section which i obviously don't want. Help!! :-)

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  • MS Chart control with WPF

    - by Birgir Hrafn Sigurðsson
    Ive got a MS Chart control and it works just fine except that I can't figure out how to "format" the Y-Axis. I am adding a lot of double numbers into a Serie but when the double numb are actually whole numbers (20.000000.....) the Y-Axis on my chart shows 20. example: this serie : 12.32 11.00 10.13 would actually show up like this: 12.32 11 10.13 I have tried formatting the data as I insert it into the serie like this: serie.Points.AddXY(date.ToString(),double[i].ToString("##.##")); but that doesn't seem to work. I've tried to search for a place to format it in Chart.Series[0].* and Chart.ChartAreas[0].* but I didn't find it there.

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  • WPF Using commands to slow to update UI controls

    - by toni
    Hi, I bind a command to a button through command property and doing a command binding in the page it is placed. In execute method I create an instance of a class that contains the background worker and I start it (this is a long task). The background worker (bw) class contains a variable isRunning that it is set to true before DoWork method is executed and to false when RunWorkerCompleted is executed. So from the code behind of the page where button is placed, in CanExecute method I set e.canExecute to true if bw is no running (isRunning = false), and e.canExecute to false if isRunning = true. WHen I press the button, it launch bw process for a long time and the button gets disabled. Ok this is correct, but when background worker (bw) finishes, the button doesn't returns to enabled until I press it again. When it is disabled and I press (when bw is finished) it gets enabled. Why the button is not returning automatically to enabled at the end of the bw? my code snippet: <Page x:Class="GParts.Pages.MyPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes; assembly=PresentationFramework.Aero" xmlns:local="clr-namespace:GParts" Loaded="Page_Loaded" Unloaded="Page_Unloaded" Height="Auto"> <Page.CommandBindings> <CommandBinding Command="{x:Static local:Pages.MyPage.rcmd}" Executed="CommandBinding_Executed" CanExecute="CommandBinding_CanExecute"/> </Page.CommandBindings> <...> <Button Command="{x:Static local:Pages.MyPage.rcmd}" /> <...> </Page> The code behind of the page: namespace GParts.Pages { public partial class MyPage : Page { public static RoutedCommand rcmd = new RoutedCommand(); private cBgWorker bw; <...> // ExecutedRoutedEventHandler for the custom button remove all command. private void CommandBinding_Executed(object sender, ExecutedRoutedEventArgs e) { // get an isntance of the background worker class bw = new cBgWorker(); // start the long task bw.StartTask(); } // CanExecuteRoutedEventHandler for the custom button remove all command. private void CommandBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e) { // bw is the instance of background worker class if (bw == null) { e.CanExecute = true; } else { e.CanExecute = !bw.isRunning;// isRunning indicates if bw is //executing now } } <...> } // end class } // end namespace

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  • Intersection point in silverlight/wpf

    - by Andrei Neagu
    Hello, Given a path like this one : <Path Stretch="Fill" Stroke="#FFD69436" Data="M 0,20 L 22.3,20 L 34,0 L 44.7,20 L 68,20 L 55.8,40 L 68,60 L 44.7,60 L 34,80 L 22.3,60 L 0,60 L 11.16,40 L 0,20 Z"> <Path.Fill> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1"> <LinearGradientBrush.GradientStops> <GradientStop Color="#FFFFFF" Offset="0" /> <GradientStop Color="Orange" Offset="1" /> </LinearGradientBrush.GradientStops> </LinearGradientBrush> </Path.Fill> </Path> How can I get the point that is at the edge of this figure at any angle? Lets say that I want the intersection point between the edge of this figure and a line passing through the center of this figure, at the 30 degrees angle with the OX axe? thanks.

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  • Capturing WPF Listbox checkbox selection

    - by wonea
    Been trying to figure out, how do I capture the events from a listbox. In the template, I've added the parameter IsChecked="" which starts my method. However, the problem is trying to capture what has been checked in the method. SelectedItem only returns what is currently selected, not the checkbox. object selected = thelistbox.SelectedItem; DataRow row = ((DataRowView)selected).Row; string teststring = row.ItemArray[0].ToString(); // Doesn't return the checkbox! <ListBox IsSynchronizedWithCurrentItem="True" Name="thelistbox" ItemsSource="{Binding mybinding}"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel> <CheckBox Content="{Binding personname}" Checked="CheckBox_Checked" Name="thecheckbox"/> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox>

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  • WPF DataGrid cannot Add a row when datasource is empty

    - by Trindaz
    CanUserAddRows="True" only 'works' when there's already data in the itemsource of the data grid. If it just so happens that there are no rows in the original list of items, then the datagrid doesn't display a 'placeholder' row for entering new items, even though I've set CanUserAddRows="True". Why?! Thanks in advance, Trindaz

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