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Search found 540 results on 22 pages for 'staticresource'.

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  • WPF: How do I get a reference to a styled window control in code behind?

    - by Brad
    I have a window defined with a style: <Window x:Class="winBorderless" x:Name="winBorderless" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Local="clr-namespace:WindowStyle" Style="{StaticResource Window_Cartesia}" WindowStartupLocation="CenterScreen" BorderThickness="1" BorderBrush="#FF9CAAC1" Margin="5" Title="[Document Title]"> and the style defined in an application level dictionary: <Style x:Key="Window_Cartesia" TargetType="{x:Type Window}"> <Setter Property="WindowStyle" Value="None"/> <Setter Property="AllowsTransparency" Value="True"/> <Setter Property="Background" Value="Transparent"/> <EventSetter Event="Loaded" Handler="Loaded"/> <EventSetter Event="PreviewKeyDown" Handler="Preview_KeyDown"/> <EventSetter Event="MouseMove" Handler="FullScreen_MouseMove"/> <Setter Property="Template"> In code behind I have a reference to the Window instance set: Win = DirectCast(sender, winBorderless) This allows access to the window properties as the EventSetters pass references to the various controls. However, it doesn't provide for access to the controls defined in the style through the window reference as they don't exist there. So, what is the best way to reference a control through code behind that is defined in the style. I'd prefer not to iterate the trees to find them but ya gotta do....

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  • Show WPF tooltip on disabled item only

    - by DT
    Just wondering if it is possible to show a WPF on a disabled item ONLY (and not when the item is enabled). I would like to give the user a tooltip explaining why an item is currently disabled. I have an IValueConverter to invert the boolean IsEnabled property binding. But it doesn't seem to work in this situation. The tooltip is show both when the item is enabled and disabled. So is is possible to bind a tooltip.IsEnabled property exclusively to an item's own !IsEnabled? Pretty straightforward question I guess, but code example here anyway: public class BoolToOppositeBoolConverter : IValueConverter { #region IValueConverter Members public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { if (targetType != typeof(bool)) throw new InvalidOperationException("The target must be a boolean"); return !(bool)value; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { if (targetType != typeof(bool)) throw new InvalidOperationException("The target must be a boolean"); return !(bool)value; } #endregion } And the binding: <TabItem Header="Tab 2" Name="tabItem2" ToolTip="Not enabled in this situation." ToolTipService.ShowOnDisabled="True" ToolTipService.IsEnabled="{Binding Path=IsEnabled, ElementName=tabItem2, Converter={StaticResource oppositeConverter}}"> <Label Content="Item content goes here" /> </TabItem> Thanks folks.

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  • Problem with Binding Multiple Objects on WPF

    - by Diego Modolo Ribeiro
    Hi, I'm developing a user control called SearchBox, that will act as a replacer for ComboBox for multiple records, as the performance in ComboBox is low for this scenario, but I'm having a big binding problem. I have a base control with a DependencyProperty called SelectedItem, and my SearchControl shows that control so that the user can select the record. The SearchControl also has a DependencyProperty called SelectedItem on it, and it is being updated when the user selects something on the base control, but the UI, wich has the SearchControl, is not being updated. I used a null converter so that I could see if the property was updating, but it's not. Below is some of the code: This is the UI: <NectarControles:MaskedSearchControl x:Name="teste" Grid.Row="0" Grid.Column="1" Height="21" ItemsSource="{Binding C001_Lista}" DisplayMember="C001_Codigo" Custom:CustomizadorTextBox.CodigoCampo="C001_Codigo" ViewType="{x:Type C001:C001_Search}" ViewModelType="{x:Type C001_ViewModel:C001_ViewModel}" SelectedItem="{Binding Path=Instancia.C001_Holding, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged, Converter={StaticResource DebuggingConverter}}"> </NectarControles:MaskedSearchControl> This is the relevante part of the SearchControl: Binding selectedItemBinding = new Binding("SelectedItem"); selectedItemBinding.Source = this.SearchControlBase; selectedItemBinding.Mode = BindingMode.TwoWay; selectedItemBinding.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged; this.SetBinding(SelectedItemProperty, selectedItemBinding); ... public System.Data.Objects.DataClasses.IEntityWithKey SelectedItem { get { return (System.Data.Objects.DataClasses.IEntityWithKey)GetValue(SelectedItemProperty); } set { SetValue(SelectedItemProperty, value); if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("SelectedItem")); } } Please someone help me... Tks...

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  • Stackpanel add item animation

    - by grzegorz_p
    Hello, I've been struggling a while with marquee-style image scrolling control. At a moment, I stuck up with templated ItemsControl: <Window.Resources> <DataTemplate x:Key="itemsTemplate"> <Image Source="{Binding AbsolutePath}"></Image> </DataTemplate> </Window.Resources> <ItemsControl ItemTemplate="{StaticResource itemsTemplate}" x:Name="ic" ItemsSource="{Binding ElementName=mainWindow, Path=DataItems}" VirtualizingStackPanel.IsVirtualizing="True"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <VirtualizingStackPanel Orientation="Vertical" VerticalAlignment="Bottom" VirtualizingStackPanel.IsVirtualizing="True" > </VirtualizingStackPanel> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> </ItemsControl> ItemsControl is bound to ObservableCollection, so I can add items at runtime. As soon as item goes off-screen it's removed from ObservableCollection. The last thing to do is implementing custom item add behavior (smooth slide-in instead of insert-translateothers behavior). Shall I derive from StackPanel to achieve such effect or just perform DoubleAnimation on currently adding item? Any suggestions appreciated.

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  • WPF - Setting ComboBox.SelectedItem in XAML based on matching object

    - by Andy T
    Hi, so, I have templated combobox that is basically acting as a simple colour palette. It is populated with a list of SolidColorBrush objects. Fine. Now, I have some data that holds the hex value of the current colour. I have a converter that converts the hex into a SolidColorBrush. Also fine. Now, I want to set the SelectedItem property of the combobox based on the colour from my datasource. Since my combo is populated with objects of type SolidColourBrush, and my binding converter is returning a SolidColorBrush, I assumed it would be as simple as saying: SelectedItem="{Binding Color, Converter={StaticResource StringToBrush}}" However... it doesn't work :( I've tested that the binding is working behind the scenes by using the exact same value for the Background property of the combobox. It works fine. So, clearly I can't just say SelectedItem = [something] where that [something] is basically an object equal to the item I want to be selected. What is the right way to do this? Surely it's possible in a XAML-only styley using binding, and I don't have to do some nasty C# iterating through all items in the combobox trying to find a match (that seems awfully old-school)...? Any help appreciated. Many thanks! AT

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  • pass Validation error to UI element in WPF?

    - by Tony
    I am using IDataErrorInfo to validate my data in a form in WPF. I have the validation implemented in my presenter. The actual validation is happening, but the XAML that's supposed to update the UI and set the style isn't happening. Here it is: <Style x:Key="textBoxInError" TargetType="{x:Type TextBox}"> <Style.Triggers> <Trigger Property="Validation.HasError" Value="true"> <Setter Property="ToolTip" Value="{Binding RelativeSource={x:Static RelativeSource.Self}, Path=(Validation.Errors)[0].ErrorContent}"/> <Setter Property="Background" Value="Red"/> </Trigger> </Style.Triggers> </Style> The problem is that my binding to Validation.Errors contains no data. How do I get this data from the Presenter class and pass it to this XAML so as to update the UI elements? EDIT: Textbox: <TextBox Style="{StaticResource textBoxInError}" Name="txtAge" Height="23" Grid.Row="3" Grid.Column="0" HorizontalAlignment="Right" VerticalAlignment="Center" Width="150"> <TextBox.Text> <Binding Path="StrAge" Mode="TwoWay" ValidatesOnDataErrors="True" UpdateSourceTrigger="PropertyChanged"/> </TextBox.Text> The validation occurs, but the style to be applied when data is invalid is not happening.

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  • MVVM Light - master / child views and dependency properties

    - by Carl Dickinson
    I'm getting an odd problem when implementing a master / child view and custom dependency properties. Within my master view I'm binding the view model declaratively in the XAML as follows: DataContext="{Binding MainViewModelProperty, Source={StaticResource Locator}}" and my MainViewModel is exposing an observable collection which I'm binding to an ItemsControl as follows: <ItemsControl ItemsSource="{Binding Lists}" Height="490" Canvas.Top="10" Width="70"> <ItemsControl.ItemTemplate> <DataTemplate> <Canvas> <local:TaskListControl Canvas.Left="{Binding ListLeft}" Canvas.Top="{Binding ListTop}" Width="{Binding ListWidth}" Height="{Binding ListHeight}" ListDetails="{Binding}"/> </Canvas> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> TaskListControl in turn declares and bind to it's ViewModel and I've also defined a dependency property for the ListDetails property. The ListDetails property is not being set and if I remove the declarative reference to it's viewmodel the dependency property's callback does get fired. Is there a conflict with declaratively binding to viewmodels and definig dependency properties? I really like MVVM Light's blendability and want to perserve with this problem so any help would be apprectiated. If you'd like to receive the source for my project then please ask

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  • Scale transform in xaml (in a controltemplate) on a button to perform a "zoom"

    - by Matt B
    Hi all, I've got a button with an image in it and it's being styled by the following: <ControlTemplate x:Key="IconButton" TargetType="Button"> <Border> <ContentPresenter Height="80" Width="80" /> </Border> <ControlTemplate.Triggers> <EventTrigger RoutedEvent="Button.Click"> <BeginStoryboard> <Storyboard TargetProperty="Opacity"> <DoubleAnimation From="1" To="0.5" Duration="0:0:0.5" /> <DoubleAnimation From="0.5" To="1" Duration="0:0:0.5" /> </Storyboard> </BeginStoryboard> </EventTrigger> <EventTrigger RoutedEvent="Mouse.MouseEnter"> <BeginStoryboard> <Storyboard TargetProperty="Width"> <DoubleAnimation From="80" To="95" Duration="0:0:0.2" /> </Storyboard> </BeginStoryboard> </EventTrigger> <Trigger Property="IsMouseOver" Value="True"> <Setter Property="Cursor" Value="Hand"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> Button is as follows: <Button Template="{StaticResource IconButton}" Name="btnExit"> <Image Source="Images/Exit.png" /> </Button> The problem is that the width doesn't change when my mouse goes over. (Or at least - the width of the image does not...) I believe there is a "scale" transform I can use to enlarge the button and all it's contents? how would I do that here...? Thanks.

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  • Databinding combobox selected item to settings

    - by Tuukka
    I store user specified settings using application settings properties and databinding. It has been working fine, until i want user selected to font for combobox. Databinding between user settings and combobox not working. I want to store font family name. App.XML <Application.Resources> <ResourceDictionary> <properties:Settings x:Key="Settings" /> </ResourceDictionary> </Application.Resources> Window.XML <ComboBox Name="Families" ItemsSource="{x:Static Fonts.SystemFontFamilies}" <!-- This line --> SelectedItem="{Binding Source={StaticResource Settings}, Path=Default.Font, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" Margin="57,122,199,118"> <ComboBox.ItemTemplate> <DataTemplate> <TextBlock Text="{Binding}" FontFamily="{Binding}"/> </DataTemplate> </ComboBox.ItemTemplate> </ComboBox> Settings: font String User Arial

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  • Is there any way to programitically change a Data/ItemTemplate in Silverlight?

    - by Kris Erickson
    So I have a Listbox, which is using an ItemTemplate to display an image. I want to be able to change the size of the displayed image in the ItemTemplate. Through databinding I can change the Width, but the only way I can see how to do this is to add a Property (Say, ImageSize) to the class I am binding to and then change every item in the colleciton to have a new ImageSize. Is there no way to access the property of an item in that Datatemplate? E.g. <navigation:Page.Resources> <DataTemplate x:Key="ListBoxItemTemplate"> <Viewbox Height="100" Width="100"> <Image Source="{Binding Image}"/> </Viewbox> </DataTemplate> </navigation:Page.Resources> <Grid> <ListBox ItemTemplate="{StaticResource ListBoxItemTemplate}" ItemSource="{Binding Collection}"/> </Grid> Is there anyway to set the Width and Height of the viewbox without binding a property to every element in the collection?

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  • using style in WPF

    - by Polaris
    In my application I use ShinyBlue.xaml resourse Dictionary which has this code for GroupBox control: <Style TargetType="{x:Type GroupBox}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type GroupBox}"> <Grid SnapsToDevicePixels="true"> <Grid.ColumnDefinitions> <ColumnDefinition Width="6" /> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="*" /> <ColumnDefinition Width="6" /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="*" /> <RowDefinition Height="6" /> </Grid.RowDefinitions> <Border Grid.ColumnSpan="4" Grid.RowSpan="4" Background="{DynamicResource LightBrush}" CornerRadius="4,4,4,4" BorderThickness="1,1,1,1" /> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> These style common for all app. But in one of the forms I want to change background to Transparent. I want override only Background Property but it's not work <Style TargetType="GroupBox" BasedOn="{StaticResource {x:Type GroupBox}}"> <Setter Property="Background" Value="Transparent"/> </Style> code above not works properly How can I change GroupBox Background in specific form ?.

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  • Binding to XMLDataProvider in Code Behind

    - by Robert Vernunft
    Hello, i have a problem moving a XMLDataprovider Binding with XPath from Xaml to code behind. Labels.xml <?xml version="1.0" encoding="utf-8" ?> <Labels> <btnOne Label="Button1"/> <btnTwo Label="Button2"/> </Labels> MainWindow.xaml <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Class="bindings.MainWindow" Title="MainWindow" Height="350" Width="525"> <Window.Resources> <XmlDataProvider x:Key="XMLLabels" Source="Labels.xml" XPath="Labels"/> </Window.Resources> <Grid> <Button Content="{Binding Source={StaticResource XMLLabels}, XPath=btnOne/@Label}" Height="23" HorizontalAlignment="Left" Margin="12,12,0,276" Name="btnOne" Width="75" /> <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="93,12,0,276" Name="btnTwo" Width="75" Loaded="btnTwo_Loaded" /> </Grid> </Window> MainWindow.xaml.cs ... private void btnTwo_Loaded(object sender, RoutedEventArgs e) { String Type = sender.GetType().Name; if (Type == "Button") { Button btn = sender as Button; Binding label = new Binding("XMLBind"); XmlDataProvider xmlLabels = (XmlDataProvider)this.FindResource("XMLLabels"); label.Source = xmlLabels; label.XPath = "btnTwo/@Header"; btn.SetBinding(Button.ContentProperty, label); } } ... The binding to content of btnOne works as aspected "Button1". But btnTwo is set to an empty string. The Output shows no errors. Thanks for any advice.

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  • AdornedElement Properties in a Trigger

    - by Chris Nicol
    I have an Adorner in XAML that I'm using for ErrorValidation. Basically I have a grid that I want to display on two conditions (if the "AdornedElement" IsFocused or IsMouseOver). Below is a code snippet where I'm binding - successfully - to the IsFocused of the AdornedElement, but as you can tell that only solves 1/2 the conditions. Now I can't pass another binding into the converter, nor can I create a property that handles both (needs to be XAML only solution). <AdornedElementPlaceholder x:Name="errorAdorner" /> ... <Grid x:Name="ErrorDetails" Visibility="{Binding ElementName=errorAdorner, Path=AdornedElement.IsFocused, Converter={StaticResource BooleanToVisibilityConverter}}" /> ... What I want to do is use triggers to handle this, the only problem is I can't access the AdornedElement's properties on a trigger. Something like this ... <Trigger SourceName="errorAdorner" Property="AdornedElement.IsFocused" Value="True"> <Setter TargetName="ErrorDetails" Property="Visibility" Value="Visible" /> </Trigger> This would also help as part of what I want to do is trigger animations, rather than just setting the visibility. Any help would be great.

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  • WPF: Selecting the Target of an Animation

    - by Phil Sandler
    I am trying to create a simple (I think) animation effect based on a property change in my ViewModel. I would like the target to be a specific textblock in the control template of a custom control, which inherits from Window. From the article examples I've seen, a DataTrigger is the easiest way to accomplish this. It appears that Window.Triggers doesn't support DataTriggers, which led me to try to apply the trigger in the style. The problem I am currently having is that I can't seem to target the TextBlock (or any other child control)--what happens is which the code below is that the animation is applied to the background of the whole window. If I leave off StoryBoard.Target completely, the effect is exactly the same. Is this the right approach with the wrong syntax, or is there an easier way to accomplish this? <Style x:Key="MyWindowStyle" TargetType="{x:Type Window}"> <Setter Property="Template" Value="{StaticResource MyWindowTemplate}"/> <Style.Triggers> <DataTrigger Binding="{Binding ChangeOccurred}" Value="True"> <DataTrigger.EnterActions> <BeginStoryboard> <Storyboard BeginTime="00:00:00" Duration="0:0:2" Storyboard.Target="{Binding RelativeSource={RelativeSource AncestorType=TextBlock}}" Storyboard.TargetProperty="(Background).(SolidColorBrush.Color)"> <ColorAnimation FillBehavior="Stop" From="Black" To="Red" Duration="0:0:0.5" AutoReverse="True"/> </Storyboard> </BeginStoryboard> </DataTrigger.EnterActions> </DataTrigger> </Style.Triggers> </Style>

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  • MVVM and Ribbon Command

    - by user312372
    I am trying to change the source property of the frame in Page1.xaml when the SampleCommand is excecuted. How do I acheive this in the View Model? Page1.xaml: <r:RibbonTab.Groups> <r:RibbonGroup GroupSizeDefinitions="{StaticResource RibbonLayout}"> <r:RibbonGroup.Command> <r:RibbonCommand LabelTitle="RibbonButton"/> </r:RibbonGroup.Command> <r:RibbonButton x:Name="RibbonButton1" Command="{Binding Path=SampleCommand}"/> </r:RibbonGroup> </r:RibbonTab.Groups> </r:RibbonTab> </r:Ribbon> <Border Name="PageBorder" Grid.Row="0" Grid.Column="1"> <Frame Name="pageFrame" Source="FirstPage.xaml" /> </Border> </DockPanel> c# Page1ViewModel.cs: RelayCommand _sampleCommand; public ICommand SampleCommand { get { // create command ?? return _sampleCommand } page1.xaml.cs : Page1ViewModel pageViewModel; this.DataContext = pageViewModel; // when pageloads

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  • Bind Command to MenuItem

    - by Neir0
    Hi I have ListView and i am trying to bind command to ContextMenu of ListView. <ListView x:Name="listView1" ItemsSource="{Binding Path=Persons}"> <ListView.Resources> <ContextMenu x:Key="ItemContextMenu"> <MenuItem Header="Add" /> <MenuItem Header="Edit"/> <Separator/> <MenuItem Header="Delete" Command="{Binding Msg}" /> </ContextMenu> </ListView.Resources> <ListView.ItemContainerStyle> <Style TargetType="ListViewItem"> <!--<EventSetter Event="PreviewMouseLeftButtonDown" />--><!--Handler="OnListViewItem_PreviewMouseLeftButtonDown" />--> <Setter Property="ContextMenu" Value="{StaticResource ItemContextMenu}"/> <Setter Property="HorizontalContentAlignment" Value="Stretch" /> </Style> </ListView.ItemContainerStyle> <ListView.View> <GridView> <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Path=Name}" /> <GridViewColumn Header="Sur Name" DisplayMemberBinding="{Binding Path=SurName}" /> <GridViewColumn Header="Age" DisplayMemberBinding="{Binding Path=Age}" /> </GridView> </ListView.View> </ListView> <Button Content="Message" Command="{Binding Msg}" /> Binding to Button works well but when i click to delete item in ContextMenu, command is not working! Why?

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  • UserControl as ListBoxItem and IsSelected

    - by mattjf
    I have a usercontrol that I want to use as a ListBoxItem. <ListBox.ItemTemplate> <DataTemplate> <local:MyUserControl/> </DataTemplate> </ListBox.ItemTemplate> I'd like to play a storyboard when the usercontrol is unselected. <UserControl.Resources> <Style TargetType="{x:Type UserControl}"> <Style.Triggers> <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType={x:Type ListBoxItem}, Mode=FindAncestor}}" Value="False"> <DataTrigger.EnterActions> <BeginStoryboard Storyboard="{StaticResource OnMouseLeaveSB}"/> </DataTrigger.EnterActions> </DataTrigger> </Style.Triggers> </Style> </UserControl.Resources> But the storyboard is never firing. Is there a better way to do this? Edited to Add: What I am really trying to accomplish this this: When the mouse is over the UserControl, I want to play a storyboard (OnMouseEnterSB). When the mouse leaves the UserControl, I want to play another storyboard (OnMouseLeaveSB). I have all this working fine. When the UserControl is selected, however, and the mouse leaves, I do NOT want to play the storyboard. Finally, when the UserControl is unselected, I want to play the OnMouseLeaveSB storyboard.

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  • WPF Grid Column MaxWidth not enforced

    - by Trevor Hartman
    This problem stems from not being able to get my TextBlock to wrap. Basically as a last-ditch attempt I am setting MaxWidth on my container grid's columns. I was surprised to find that my child label and textbox still do whatever they want (bad children, BAD) and are not limited by my grid column's MaxWidth="200". What I'm really trying to do is let my TextBlock fill available width and wrap if necessary. So far after trying many variations of HorizontalAlignment="Stretch" on every known parent in the universe, nothing works, except setting an explicit MaxWidth="400" or whatever number on the TextBlock. This is not good because I need the TextBlock to fill available width, not be limited by some fixed number. Thanks! <ItemsControl> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <StackPanel /> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> <ItemsControl.ItemTemplate> <DataTemplate> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition MaxWidth="200" SharedSizeGroup="A" /> <ColumnDefinition MaxWidth="200" SharedSizeGroup="B" /> </Grid.ColumnDefinitions> <Label VerticalAlignment="Top" Margin="0 5 0 0" Grid.Column="0" Style="{StaticResource LabelStyle}" Width="Auto" Content="{Binding Value.Summary}" /> <TextBlock Grid.Column="1" Margin="5,8,5,8" FontWeight="Normal" Background="AliceBlue" Foreground="Black" Text="{Binding Value.Description}" HorizontalAlignment="Stretch" TextWrapping="Wrap" Height="Auto" /> </Grid> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl>

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  • How to Read some of the properties of the ItemSource when Laying out the Children?

    - by user275561
    Assume that I have the ItemSource bound and i am getting the data. Now what I want is this. The ItemSource will contain Data that tells where each button should be. For Example: The first Button could be at Left:200,Top:0, the Second could be Left:50 Top:20. </ItemsControl.Resources> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <Controls:MatrixCanvas /> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> <ItemsControl.ItemTemplate> <DataTemplate> <item:CustomButton Height="{Binding btnSize}" Width="{Binding btnSize}" Style="{Binding bbColor,Converter={StaticResource ButtonStyleConverter}}" /> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> protected override Size ArrangeOverride(Size finalSize) { foreach (var child in Children) { //The child } return base.ArrangeOverride(finalSize); } The Child however is not giving me access to the Item that I want. Is their a good solution for this? Am I going about this the wrong way? The reason I am doing it like this is because their can be buttons added dynamically, removed, some buttons will need to move around etc..

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  • WPF validation red border doesn't show If UserControl collapsed first

    - by Creepy Gnome
    There seems to be a bug with WPF in 3.5, and I was hoping someone may have found a workaround. Basically if you have a custom UserControl that contains a TextBox and it is in a Window but initialized to be Collapsed by default in the xaml or code behind if it fails validation when you make the control visible it will not show the red border until it fails while visible. However, this works correctly when visibility is set to Hidden, just no when Collapsed. I am already overriding the ErrorTemplate with a style to workaround the Adornment issue with the red border staying visibile when you collapse the control. Below is my full style for the TextBox. If there is any additional changes or additions to make it work correctly with collapsed controls that would be great. <Style TargetType="TextBox"> <Setter Property="Margin" Value="3" /> <Setter Property="Validation.ErrorTemplate"> <Setter.Value> <ControlTemplate> <ControlTemplate.Resources> <BooleanToVisibilityConverter x:Key="converter" /> </ControlTemplate.Resources> <DockPanel LastChildFill="True"> <Border BorderThickness="2" BorderBrush="Red" Visibility="{ Binding ElementName=placeholder, Mode=OneWay, Path=AdornedElement.IsVisible, Converter={StaticResource converter}}" > <AdornedElementPlaceholder x:Name="placeholder" /> </Border> </DockPanel> </ControlTemplate> </Setter.Value> </Setter> <Style.Triggers> <Trigger Property="Validation.HasError" Value="true" > <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}" /> </Trigger> </Style.Triggers> </Style>

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  • Adding a selection box into an ItemsControl?

    - by Jens
    I have a WPF ItemsControl with a Canvas ItemPanel. Drawing from an internal source, it displays lots of automatically generated Rectangles. As of now, it looks like this: <Window // .. NameSpaces > <Window.Resources> <DataTemplate x:Key="binTemplate"> <Rectangle x:Name="Rect" VerticalAlignment="Bottom" Canvas.Left="10" StrokeThickness="0"> // .. Databinding Height, Width, etc </Rectangle> </DataTemplate> </Window.Resources> <DockPanel x:Name="LayoutRoot" LastChildFill="True"> <ItemsControl ItemsSource="{Binding Bins}" ItemTemplate="{StaticResource binTemplate}"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <Canvas MouseDown="Canvas_MouseDown" MouseMove="Canvas_MouseMove" MouseUp="Canvas_MouseUp"> <Rectangle x:Name="Selection" Canvas.Left="0" Canvas.Top="0" Visibility="Hidden" /> </Canvas> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> </ItemsControl> </DockPanel> </Window> I now try to implement a selection box, too.. well.. select my Rectangles. =) I tried just adding the box into the ItemsControl PanelTemplate, and controlling it with the Canvas mouse events, but it appears I am not allowed to do so. The error message is "Cannot explicitly modify Children collection of Panel used as ItemsPanel for ItemsControl. ItemsControl generates child elements for Panel." What is the preferred way to implement such behavior? I thought about overlaying another canvas (using negative Margin) and drawing the selection box in there, but that seems like a bad hack. Thanks in advance!

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  • Can't get focus on a TextBox inside a ListBox using Silverlight

    - by Steve Temple
    I'm having a little trouble in silverlight with a listBox containing databound textBox elements. The items display correctly in the list and the textBox is populated correctly but I can't get focus on the text box in the list. If I hover over the edges of the textBox it highlights but it won't let me click into it to edit the text. Any ideas? My XAML looks like this: <ListBox x:Name="listImages"> <ListBox.ItemTemplate> <DataTemplate> <Grid x:Name="LayoutRoot" Background="White"> <Image Height="102" HorizontalAlignment="Left" Name="imgThumb" Stretch="UniformToFill" VerticalAlignment="Top" Width="155" Source="{Binding ImageFilename, Converter={StaticResource ImageConverter}}" /> <TextBox Height="23" HorizontalAlignment="Left" Margin="154,25,0,0" Name="txtAltText" VerticalAlignment="Top" Width="239" Text="{Binding Alt}" /> <dataInput:Label Height="19" HorizontalAlignment="Left" Margin="154,6,0,0" Name="lblAltText" VerticalAlignment="Top" Width="239" Content="Alt Text" /> </Grid> </DataTemplate> </ListBox.ItemTemplate> </ListBox>

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  • wpf error template - red box still visible on collapse of an expander

    - by Andy Clarke
    Hi, I'm doing some validation on the DataSource of TextBox that's within an Expander and have found that once a validation error has been triggered, if I collapse the Expander, the red box stays where the TextBox would have been. <Expander Header="Blah Blah Blah"> <TextBox Name="TextBox" Validation.ErrorTemplate="{DynamicResource TextBoxErrorTemplate}" Text="{Binding Path=Blah, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" /> </Expander> I've tried to get round this by binding the visibility of the Error Template to the Expander, however I think there's something wrong with the binding. <local:NotVisibleConverter x:Key="NotVisibleConverter" /> <ControlTemplate x:Key="TextBoxErrorTemplate"> <DockPanel> <Border BorderBrush="Red" BorderThickness="2" Visibility="{Binding Path=IsExpanded, Converter={StaticResource NotVisibleConverter}, RelativeSource={RelativeSource AncestorType=Expander}}" > <AdornedElementPlaceholder Name="MyAdorner" /> </Border> </DockPanel> <ControlTemplate.Triggers> <Trigger Property="Validation.HasError" Value="true"> <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> I guess I've gone wrong with my binding, can someone put me back on track please? Alternatively does anyone know another solution to the ErrorTemplate still being visible on the collapse of an Expander?

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  • Windows Phone app: Binding data in a UserControl which is contained in a ListBox

    - by Alexandros Dafkos
    I have an "AddressListBox" ListBox that contains "AddressDetails" UserControl items, as shown in the .xaml file extract below. The Addresses collection is defined as ObservableCollection< Address Addresses and Street, Number, PostCode, City are properties of the Address class. The binding fails, when I use the "{Binding property}" syntax shown below. The binding succeeds, when I use the "dummy" strings in the commented-out code. I have also tried "{Binding Path=property}" syntax without success. Can you suggest what syntax I should use for binding the data in the user controls? <ListBox x:Name="AddressListBox" DataContext="{StaticResource dataSettings}" ItemsSource="{Binding Path=Addresses, Mode=TwoWay}"> <ListBox.ItemTemplate> <DataTemplate> <!-- <usercontrols:AddressDetails AddressRoad="dummy" AddressNumber="dummy2" AddressPostCode="dummy3" AddressCity="dummy4"> </usercontrols:AddressDetails> --> <usercontrols:AddressDetails AddressRoad="{Binding Street}" AddressNumber="{Binding Number}" AddressPostCode="{Binding PostCode}" AddressCity="{Binding City}"> </usercontrols:AddressDetails> </DataTemplate> </ListBox.ItemTemplate> </ListBox>

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  • How can a ListBoxItem property be set in Silverlight at runtime?

    - by sympatric greg
    Given this XAML, I need to resize the userControl in response to user input. How can I set a new width for ListBoxItem (or perhaps the StackPanel)? <ScrollViewer x:Name="ScrollViewer" Margin="0" BorderBrush="Transparent" Width="165" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Hidden"> <ListBox x:Name="AttributeListBox" ItemsSource="{Binding Attributes}" BorderBrush="Red" Width="160" Foreground="AntiqueWhite" Background="Transparent" IsEnabled="False" HorizontalAlignment="Stretch"> <ListBox.ItemContainerStyle> <Style TargetType="ListBoxItem"> <Setter Property="HorizontalAlignment" Value="Stretch"/> <Setter Property="Width" Value="150"/> <Setter Property="Margin" Value="0,-2,0,0"/> <Setter Property="HorizontalContentAlignment" Value="Left" /> <Setter Property="Template" Value="{StaticResource ListBoxItemSansFocus}" /> </Style> </ListBox.ItemContainerStyle> <ListBox.ItemTemplate> <DataTemplate> <StackPanel x:Name="ListBoxItemStackPanel" HorizontalAlignment="Stretch" Orientation="Vertical" > <TextBlock FontSize="10" Text="{Binding Key}" Foreground="White" FontWeight="Bold" HorizontalAlignment="Stretch" Margin="2,0,0,0" TextWrapping="Wrap"/> <TextBlock FontSize="10" Text="{Binding Value}" Foreground="White" Margin="6,-2,0,0" TextWrapping="Wrap"/> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox> </ScrollViewer>

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