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  • Two Way Data Binding With a Object in WPF,Image Control

    - by Candy
    Sorry, my English is not very good, I have a object "Stuffs" "Stuffs" have a Property “Icon” now: xaml <Button Click="Button_Click"><Image Width="80" Height="80" Source="{Binding Path=Icon,Converter={StaticResource ImageConverter}}"/></Button> cs private void Button_Click(object sender, RoutedEventArgs e) { IconFloder.Title = "Icon"; String IconFloderPath = AppDomain.CurrentDomain.BaseDirectory + ItemIconFloder; if (!System.IO.Directory.Exists(IconFloderPath)) System.IO.Directory.CreateDirectory(IconFloderPath); IconFloder.InitialDirectory = IconFloderPath; IconFloder.Filter = "Image File|*.jpeg"; IconFloder.ValidateNames = true; IconFloder.CheckPathExists = true; IconFloder.CheckFileExists = true; if (IconFloder.ShowDialog() == true) { HideImage.Text = ItemIconFloder + "\\" + IconFloder.SafeFileName; ((sender as Button).Content as Image).Source = new ImageConverter().Convert(ItemIconFloder + "\\" + IconFloder.SafeFileName, Type.GetType("System.Windows.Media.ImageSource"), null, new System.Globalization.CultureInfo("en-US")) as ImageSource; } } class ImageConverter:IValueConverter { public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { if (value is string&&!String.IsNullOrEmpty(value.ToString())) { try { return new BitmapImage(new Uri(AppDomain.CurrentDomain.BaseDirectory + value)); } catch { } } return null; } public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { throw new NotImplementedException(); } } I would like to click buttons, change the picture, Also change Data Binding Stuffs.Icon But failed,I have no idea?I need help? I do not know whether I speak clearly

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  • How to reuse layouts in WPF

    - by Ingó Vals
    I'm trying to create a application that will be tabbed where each tab will have a button area and a view area. Now each tab will essentially have the same layout just different things in the layout and I wanted to be able to reuse the same layout so that I won't have to change at many places ( it's just not good programming ). Can I accomplish this using resources or perhaps Styles. Please supply a light code example if possible.

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  • WPF Textbox "normal" text input

    - by Ash Rowe
    G'day, I'm not sure if this is a problem relevant to only me or if anyone else has this issue also. None the less, I'll try and describe what is going on here. I have a few textbox's, default style, etc. I set an explicit maxwidth and maxheight to prevent resize when the text exceeds the default width of the textbox. The issue is that the text wraps to the next line, but I only want single line. So I set maxlines to 1 and textwrapping to NoWrap. That's fine. Now the carat and typed text disappears under the edges of the textbox when the width is exceeded and the only way I can get the carat and newly typed text back into view is by pressing the left and right arrows. Coming from MFC and using textboxes all the time with HTML, I would have thought the default behaviour would be to have the textbox content scroll with the carat or am I missing something here? Thank you, Ash

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  • Collapsed Visibility Within a WPF ComboBoxItem

    - by user832747
    I used a Style setter to stretch out my ComboBoxItem (and button) so that it spans the entire length of the ComboBox like so: <ComboBox > <ComboBox.Resources> <Style TargetType="ComboBoxItem"> <Setter Property="HorizontalContentAlignment" Value="Stretch" /> </Style> </ComboBox.Resources> <ComboBoxItem > <DockPanel > <Button Content="My Button" /> </DockPanel> </ComboBoxItem> </ComboBox> This works fine. Now, I add an additional button within the same ComboBoxItem, but have it set to Visibility Collapsed. <ComboBox > <ComboBox.Resources> <Style TargetType="ComboBoxItem"> <Setter Property="HorizontalContentAlignment" Value="Stretch" /> </Style> </ComboBox.Resources> <ComboBoxItem > <DockPanel > <Button Content="My Button" /> <Button Content="My Collapsed Button" Visibility="Collapsed" /> </DockPanel> </ComboBoxItem> </ComboBox> Now, the new button is invisible, but I expected my original button to still stretch the entire ComboBox, like it does with the above code. However, it does not. Why is this so? Is there a solution for this? I am using DataTriggers to edit the Visibility property. NOTE: I also get the same thing if I just set HorizontalContentAlignment="Stretch" in the ComboBox. UPDATE: Ok, this actually has something to do with the DockPanel. I changed it to a StackPanel, and it works as desired. However, I suppose I'm still curious as to why my first button would not stretch the entire DockPanel if the second button is collapsed?

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  • WPF WrapPanel with some items having a height of *

    - by Aphex
    How do I make a WrapPanel with some items having a Height of *? A deceptively simple question that I have been trying to solve. I want a control (or some XAML layout magickry) that behaves similar to a Grid that has some rows with a Height of *, but supports wrapping of columns. Hell; call it a WrapGrid. :) Here's a mockup to visualize this. Imagine a grid defined as such: <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="400"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="*"/> <RowDefinition Height="Auto"/> <RowDefinition Height="*"/> <RowDefinition Height="Auto"/> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <Button Grid.Row="0" MinHeight="30">I'm auto-sized.</Button> <Button Grid.Row="1" MinHeight="90">I'm star-sized.</Button> <Button Grid.Row="2" MinHeight="30">I'm auto-sized.</Button> <Button Grid.Row="3" MinHeight="90">I'm star-sized, too!</Button> <Button Grid.Row="4" MinHeight="30">I'm auto-sized.</Button> <Button Grid.Row="5" MinHeight="30">I'm auto-sized.</Button> </Grid> </Window> What I want this panel to do is wrap an item into an additional column when the item can not get any smaller than its minHeight. Here is a horrible MSPaint of some mockups I made detailing this process. Recall from the XAML that the auto-sized buttons have minHeights of 30, and the star-sized buttons have minHeights of 90. This mockup is just two grids side by side and I manually moved buttons around in the designer. Conceivably, this could be done programmatically and serve as a sort of convoluted solution to this. How can this be done? I will accept any solution whether it's through xaml or has some code-behind (though I would prefer pure XAML if possible since xaml code behind is tougher to implement in IronPython). Updated with a bounty

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  • Rendering order in ContentControl - WPF

    - by Eden
    Hi, There is something that I don't understand regarding ContentControl: I've a class that inherits from ContentControl, and it overrides the OnRender method. And although I don't call base.OnRender(drawingContext) still the content is being rendered... How come? What am I missing? Thanks, Eden

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  • 'Graying Out' a WPF button image?

    - by David Veeneman
    I have a simple Button control that contains an Image object as its content. I want so set the Image opacity to 0.5 when the Button is disabled to provide an additional visual cue as to the Button status. What is the simplest way to accomplish that result in XAML? Thanks for your help.

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  • WPF Binding Question - Change Label Text based on Modifier Key Control

    - by Chuck Savage
    I have a context menu, that I'd like to change the Header based on whether the Control Key is pressed or not. Right now I have, <MenuItem Header="Send To"> <MenuItem ... /> <MenuItem ... /> </MenuItem> I'd like based on the Control Key being down to be, <MenuItem Header="Move To"> <MenuItem ... /> <MenuItem ... /> </MenuItem> All I really need to do is change the Header text, because inside the code I know how to check for the Modifier key being Control.

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  • Listbox of comboboxes and binding them WPF

    - by Bashawy
    Hello, I have a situation where i have a listbox of comboboxes , mainly it binds to a bridge entity so the object contains foreign keys . What i need to do is that i need to bind the display of the combos to the respective entities and their value members to the foreign key values in the bridge entity that i bind the listbox to. the code i have now is : <ListBox Name="lstServices" ScrollViewer.HorizontalScrollBarVisibility="Disabled" HorizontalContentAlignment="Stretch"> <ListBox.ItemTemplate> <DataTemplate> <Grid Margin="2" DataContext="{Binding ElementName=wndMain,Path=DataContext}"> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"/> <ColumnDefinition Width="*"/> </Grid.ColumnDefinitions> <ComboBox Name="cmbService" SelectedIndex="0" DisplayMemberPath="Name" SelectedValuePath="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=FK_ServiceID}" ItemsSource="{Binding Path=AllServices}" Grid.Column="0"></ComboBox> <ComboBox Name="cmbService_Role" Margin="2,0,0,0" SelectedValuePath="{Binding Path=FK_ServiceRoleID}" DisplayMemberPath="Name" ItemsSource="{Binding Path=AllService_Roles}" Grid.Column="1"></ComboBox> </Grid> </DataTemplate> </ListBox.ItemTemplate> </ListBox> I could manage to display the values that i needed but since the List Item context changed i can't get to the listbox itemSource . Any help is appreciated Bishoy

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  • Cross Thread Exception in PropertyChangedEvent in WPF

    - by Ashish Ashu
    I have a ListView that is binded to my custom collection. At run time , I am updating the certain properties of my entity in my custom collection in my ViewModel. At the same time , I am also doing the custom sorting in the listview. The custom sorting is applicable when I click on the any column header of the listview. For example, I am updating the current datetime on my entity on every 5 seconds and simulaneously , I am applying custom sorting based on DateTime. (The Listview is third party control). Hence I am doing two operations on my custom collection at the same time. Should I pass the dispatcher of my control in the view model and call any methods ( which updates any entity in my custom collection ) through UI dispatcher ?

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  • WPF bind to a static double var

    - by devin250
    hi, i have these double values: public partial class Window1 : Window { public Window1() { InitializeComponent(); double num1 = 50.0; double num2 = 90.0; double num3 = 120.0; double num4 = 20.0; double num5 = 80.0; } } how do i bind them to xaml? <vc:Chart.Series> <vc:DataSeries RenderAs="Column" AxisYType="Primary" > <vc:DataSeries.DataPoints> <vc:DataPoint AxisXLabel="Wall-Mart" YValue="{Binding Source={StaticResource num1}}" /> .... help please

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  • Where can I find free WPF controls and control templates?

    - by Geoffrey Chetwood
    Duplicate: Where can I find free WPF controls and control templates? I am looking for some recommendations on good places to find libraries of controls/templates/styles for WPF. I know about the usual places like Infragistics, but it seems to me that there should be some kind of community effort by now to share nice, clean, well written controls for WPF controls. I am not big on the design side, and it would be nice to fill out my personal libraries with some nice examples from people who are better at design. Any ideas/recommendations?

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  • Wpf: Loading DataGrid in Groupbox causes Groupbox to be too tall

    - by Rick Make
    I have a GroupBox that contains a stackpanel holding a textbox and a datagrid. When I use the textbox to populate the datagrid. Sometimes I need to load the datagrid with values. What I am noticing is that when the groupbox renders when the datagrid has values that the height of the groupbox is maxed out to the size of its parent container. And when I add a value via the textbox the groupbox snaps back to its proper height. Is there something that I am missing? When the datagrid renders it looks like all the text in the textcolumns render vertically and then snap into place. <StackPanel x:Name="LeftDock" Margin="0" VerticalAlignment="Top" MinHeight="480" Width="650" > <GroupBox x:Name="g_grpBx" Margin="8,8,0,0" Padding="0,10,0,0" MaxWidth="635" MinWidth="612" VerticalAlignment="Top"> <StackPanel x:Name="g_dp" VerticalAlignment="Top"> <local:TextboxControl x:Name="m_txbx" Margin="0" VerticalAlignment="Top" MinWidth="592"/> <local:GoalDataGrid x:Name="goalDataGrid" Height="Auto" MinHeight="25" MinWidth="592" Margin="0" Padding="0" VerticalAlignment="Top"/> </StackPanel> </GroupBox> </StackPanel>

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  • WPF WebBrowser: How to set element click event?

    - by Ralph
    I've figured out how to make everything red as soon as the page is finished loading: private void webBrowser1_LoadCompleted(object sender, NavigationEventArgs e) { var doc = (IHTMLDocument2)webBrowser1.Document; foreach (IHTMLElement elem in doc.all) { elem.style.backgroundColor = "#ff0000"; } } Now what if I want to make the element only change color when it's clicked? I see that elem has an onclick property, but it's type is dynamic so I don't know what to do with it. The documentation is pretty useless.

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  • Accessing the selected element inside a templated textblock bound to a wpf listbox

    - 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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  • Can a custom WPF control implement the IsDefault property

    - by jpierson
    I have a custom button control that does not derive from Button. Is it possible for me to implement the equivalent of IsDefault so that the command associated with my control will be invoked. I was hoping that this was an attached property that I could add to any control but as far as I can tell it doesn't seem to be. Am I out of luck if my control does not derive from Button or is there at least a reasonable workaround?

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  • WPF - Only want one expander open at a time

    - by Portsmouth
    I have a UserControl with a templated grouped listbox with expanders and only want one expander open at any time. I have browsed through the site but haven't found anything except binding the IsExpanded to IsSelected which isn't quite what I want. I am trying to put some code in the Expanded event that would loop through Expanders and close all the ones that aren't the expander passed in the Expanded event. I can't seem to figure out how to get at them. I've tried ListBox.Items.Groups but didn't see how to get at them and tried ListBox.ItemContainerGenerator.ContainerFromItem (or Index) but nothing came back. Thanks <ListBox Name="ListBox"> <ListBox.GroupStyle > <GroupStyle> <GroupStyle.ContainerStyle> <Style TargetType="{x:Type GroupItem}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type GroupItem}"> <Border BorderBrush="CadetBlue" BorderThickness="1"> <Expander BorderThickness="0,0,0,1" Expanded="Expander_Expanded" Focusable="False" IsExpanded="{Binding IsSelected, RelativeSource={RelativeSource FindAncestor, AncestorType= {x:Type ListBoxItem}}}" > <Expander.Header> <Grid> <StackPanel Height="30" Orientation="Horizontal"> <TextBlock Foreground="Navy" FontWeight="Bold" Text="{Binding Path=Name}" Margin="5,0,0,0" MinWidth="200" Padding="3" VerticalAlignment="Center" /> <TextBlock Foreground="Navy" FontWeight="Bold" Text=" Setups: " VerticalAlignment="Center" HorizontalAlignment="Right"/> <TextBlock Foreground="Navy" FontWeight="Bold" Text="{Binding Path=ItemCount}" VerticalAlignment="Center" HorizontalAlignment="Right" /> </StackPanel> </Grid> </Expander.Header> <Expander.Content> <Grid Background="white" > <ItemsPresenter /> </Grid> </Expander.Content> <Expander.Style > <Style TargetType="{x:Type Expander}"> <Style.Triggers> <Trigger Property="IsMouseOver" Value="true"> <Setter Property="Background"> <Setter.Value> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1"> <GradientStop Color="WhiteSmoke" Offset="0.0" /> <GradientStop Color="Orange" Offset="1.0" /> </LinearGradientBrush> </Setter.Value> </Setter> </Trigger> <Trigger Property="IsMouseOver" Value="false" <Setter Property="Background"> <Setter.Value> </code>

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  • Double Loaded event in WPF

    - by Simon
    I had some difficulties with bindng data to custom controll's value made by someone else so i used "Loaded" event to assign control's value during, but i've noticed that this event is fired up twice. How can i find out what's firing that event? (VS2008) Or mayby any solution would be expected :)

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  • How to do wpf datavalidation with Ado.net

    - by biju
    How can i use data validation mechanisms with ado.net datatable or datasets. I have an input form which i am binding to a datatable.Now i want to do input validation how can i do that.I have tried using validationRules but i cant bind parameters to it.I tried using idataerrorinfo but cant get a clue.can someone provide some input..?

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  • WPF, Image MouseDown Event

    - by PrimeTSS
    I have an control with a mouse down event where Id like to chnage the Image when the image is clicked. But I cant seem to alter ANY of the images properties in the event. Event private void Image_MouseDown(object sender, MouseButtonEventArgs e) { BitmapImage bitImg = new BitmapImage(); bitImg.BeginInit(); bitImg.UriSource = new Uri("./Resource/Images/Bar1.png", UriKind.Relative); bitImg.EndInit(); ((Image)sender).Source = null; ((Image)sender).Width = 100; ((Image)sender).Visibility = Visibility.Hidden; } The event does fire, and even the .Visibility property does not alter the image and make it hidden. What am I doing wrong?

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  • Button template with image and text in wpf

    - by Archana R
    Hello, I want to create buttons with images and text inside. For example, i would use different images and text for buttons like 'Browse folders' and 'Import'. One of the options would be to use a template. I had a look at simliar question http://stackoverflow.com/questions/1933127/creating-an-imagetext-button-with-a-control-template But is there any way by which i can bind the source of image without using a dependency property or any other class? Thanks

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  • Search and Highlight search text in items in the Listview in WPF

    - by kiran-k
    Hi, I am using MVVM to show the database records in a gridview (ListView view). i have a textbox where we can enter the text to be searched in the results listed in the gridview. i tried many ways to highlight the search text (Not the entire row only the text matches in the record) in the records displayed in the list view but unable to highlight. i am able to find the starting and ending indexes. i tried to created rectangles using those indexes on the text block but unable to highlight. Can anyone have solution for this. Thanks in advance.

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  • checkbox like radiobutton wpf c#

    - by rockenpeace
    i have investigated this problem but this is solved in design view and code-behind. but my problem is little difference: i try to do this as only code-behind because my checkboxes are dynamically created according to database data.In other words, number of my checkboxes is not stable. i want to check only one checkbox in group of checkboxes. when i clicked one checkbox,i want that ischecked property of other checkboxes become false.this is same property in radiobuttons. i take my checkboxes from a stackpanel in xaml side: <StackPanel Margin="4" Orientation="Vertical" Grid.Row="1" Grid.Column="1" Name="companiesContainer"> </StackPanel> my xaml.cs: using (var c = new RSPDbContext()) { var q = (from v in c.Companies select v).ToList(); foreach (var na in q) { CheckBox ch = new CheckBox(); ch.Content = na.Name; ch.Tag = na; companiesContainer.Children.Add(ch); } } foreach (object i in companiesContainer.Children) { CheckBox chk = (CheckBox)i; chk.SetBinding(ToggleButton.IsCheckedProperty, "DataItem.IsChecked"); } how can i provide this property in checkboxes in xaml.cs ? thanks in advance..

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  • wpf keep base style in custom control

    - by Archana R
    Hello, I have created a custom button as i wanted an image and a text inside it as follows: <Style TargetType="{x:Type Local:ImageButton}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Local:ImageButton}"> <StackPanel Height="Auto" Orientation="Horizontal"> <Image Margin="0,0,3,0" Source="{TemplateBinding ImageSource}"/> <TextBlock Text="{TemplateBinding Content}" /> </StackPanel> </ControlTemplate> </Setter.Value> </Setter> </Style> Here, ImageButton is a class which inherits from Button class and has ImageSource as a dependency property. But i want to keep the look and feel of the original button. How can i do it? Thanks.

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  • WPF: How to properly override the methods when creating custom control

    - by EV
    Hi, I am creating a custom control Toolbox that is derived from ItemsControl. This toolbox is supposed to be filled with icons coming from the database. The definition looks like this: public class Toolbox : ItemsControl { protected override DependencyObject GetContainerForItemOverride() { return new ToolboxItem(); } protected override bool IsItemItsOwnContainerOverride(object item) { return (item is ToolboxItem); } } Toolboxitem is derived from ContentControl. public class ToolboxItem : ContentControl { static ToolboxItem() { FrameworkElement.DefaultStyleKeyProperty.OverrideMetadata(typeof(ToolboxItem), new FrameworkPropertyMetadata(typeof(ToolboxItem))); } } Since the number of icons stored in a database is not known I want to use the data template: <DataTemplate x:Key="ToolBoxTemplate"> <StackPanel> <Image Source="{Binding Path=url}" /> </StackPanel> </DataTemplate> Then I want the Toolbox to use the template. <Toolbox x:Name="NewLibrary" ItemsSource="{Binding}" ItemTemplate="ToolBoxtemplate"> </Toolbox> I'm using ADO.NET entity framework to connect to a database. The code behind: SystemicsAnalystDBEntities db = new SystemicsAnalystDBEntities(); private void Window_Loaded(object sender, RoutedEventArgs e) { NewLibrary.ItemsSource = from c in db.Components select c; } However, there is a problem. When the code is executed, it displays the object from the database (as the ItemSource property is set to the object from the database) and not the images. It does not use the template. When I use the static images source it works in the right way I found out that I need to override the PrepareContainerForItemOverride method.But I don't know how to add the template to it. Thanks a lot for any comments. Additional Information Here is the ControlTemplate for ToolboxItem: <ControlTemplate TargetType="{x:Type s:ToolboxItem}"> <Grid> <Rectangle Name="Border" StrokeThickness="1" StrokeDashArray="2" Fill="Transparent" SnapsToDevicePixels="true" /> <ContentPresenter Content="{TemplateBinding ContentControl.Content}" Margin="{TemplateBinding Padding}" SnapsToDevicePixels="{TemplateBinding UIElement.SnapsToDevicePixels}" /> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="true"> <Setter TargetName="Border" Property="Stroke" Value="Gray" /> </Trigger> </ControlTemplate.Triggers> </ControlTemplate>

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