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  • Unable to cast type isse in silverlight

    - by prince23
    error once i clcik on the button i am getting this error. this is my code <sdk:DataGrid MinHeight="100" x:Name="dgCounty" AutoGenerateColumns="False" VerticalAlignment="Top" IsReadOnly="True" Margin="5,5,5,0" RowDetailsVisibilityChanged="dgCounty_RowDetailsVisibilityChanged" RowDetailsVisibilityMode="VisibleWhenSelected"> <sdk:DataGrid.Columns> <data:DataGridTemplateColumn.CellTemplate> <DataTemplate> <Button Content="+" Click="Button_Click"></Button> </DataTemplate> private void Button_Click(object sender, RoutedEventArgs e) { Button btnExpandCollapse = sender as Button; var Row = DataGridRow.GetRowContainingElement(sender as FrameworkElement); if (Row.DetailsVisibility == Visibility.Collapsed) { Row.DetailsVisibility = Visibility.Visible; } else { Row.DetailsVisibility = Visibility.Collapsed; } if (btnExpandCollapse.Content.ToString() == "+") { btnExpandCollapse.Content = "-"; } else if (btnExpandCollapse.Content.ToString() == "-") { btnExpandCollapse.Content = "+"; } } void dtg_RowDetailsVisibilityChanged(object sender, DataGridRowDetailsEventArgs e) { DataGrid RowDetails = e.DetailsElement as DataGrid if(RowDetails.YourDesiciveFlag = true) { } else { } } } working on this issue from past 3 days any idea how to solve this issue. just going mad on this issue. for expand /collpase in data grid in silverlight. let me know if you people can provide me any code that can solve my issue. thanks in advance prince

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  • Silverlight 3 - HeaderedItemsControl ControlTemplate

    - by user208662
    Hello, I am trying to create a HeaderedItemsControl where the headers are frozen. In an attempt to accomplish this, I have been trying to build on the default control template generated by Blend. I am using this default template in the following manner: <controls:HeaderedItemsControl x:Name="informationItemsControl"> <controls:HeaderedItemsControl.Template> <ControlTemplate> <Grid x:Name="Root"> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <ContentControl x:Name="HeaderContent" Content="{TemplateBinding Header}" ContentTemplate="{TemplateBinding HeaderTemplate}"/> <ItemsPresenter x:Name="Items" Grid.Row="1"/> </Grid> </ControlTemplate> </controls:HeaderedItemsControl.Template> ... </controls:HeaderedItemsControl> Oddly, when I use the default template, a blank screen appears in my application. A JavaScript error bubbles up that says: Error: Unhandled Error in Silverlight Application Code: 2012 Category: ParserError Message: Unknown attribute Content on element ContentControl. File: Line: 6 Position: 107 Source File: http://localhost:2995/ Line: 60 I noticed that this error appears as long as either Content="{TemplateBinding Header}" or ContentTemplate="{TemplateBinding HeaderTemplate}" exist in the ControlTemplate. If I remove both of those, the items appear just fine (but no header). I tried with a simple header that was just a TextBlock and I still received the error. What am I doing wrong? How do I get the Header to display within the ControlTemplate?

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  • Silverlight for windows embedded

    - by Abhi
    Dear All This is my xaml file. <UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="SilverlightApplication1.Page" Width="640" Height="480" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" xmlns:vsm="clr-namespace:System.Windows;assembly=System.Windows"> <UserControl.Resources> <Style x:Key="ButtonStyle1" TargetType="Button"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="Button"> <Grid> <vsm:VisualStateManager.VisualStateGroups> <vsm:VisualStateGroup x:Name="FocusStates"> <vsm:VisualState x:Name="Unfocused"/> <vsm:VisualState x:Name="Focused"/> </vsm:VisualStateGroup> <vsm:VisualStateGroup x:Name="CommonStates"> <vsm:VisualState x:Name="MouseOver"> <Storyboard> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="1.207"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="1.207"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="15.5"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="17.877"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </vsm:VisualState> <vsm:VisualState x:Name="Normal"/> <vsm:VisualState x:Name="Pressed"> <Storyboard> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0.567"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0.567"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="-32.5"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="-37.483"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </vsm:VisualState> <vsm:VisualState x:Name="Disabled"/> </vsm:VisualStateGroup> </vsm:VisualStateManager.VisualStateGroups> <Image Source="bounce_media.png" Stretch="Fill" RenderTransformOrigin="0.5,0.5" x:Name="image"> <Image.RenderTransform> <TransformGroup> <ScaleTransform/> <SkewTransform/> <RotateTransform/> <TranslateTransform/> </TransformGroup> </Image.RenderTransform> </Image> <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style x:Key="ButtonStyle2" TargetType="Button"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="Button"> <Grid> <vsm:VisualStateManager.VisualStateGroups> <vsm:VisualStateGroup x:Name="FocusStates"> <vsm:VisualState x:Name="Unfocused"/> <vsm:VisualState x:Name="Focused"/> </vsm:VisualStateGroup> <vsm:VisualStateGroup x:Name="CommonStates"> <vsm:VisualState x:Name="MouseOver"> <Storyboard> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="1.243"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="1.243"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="18.208"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="21"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </vsm:VisualState> <vsm:VisualState x:Name="Normal"/> <vsm:VisualState x:Name="Pressed"> <Storyboard> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0.6"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0.6"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="-30"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="-34.6"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </vsm:VisualState> <vsm:VisualState x:Name="Disabled"/> </vsm:VisualStateGroup> </vsm:VisualStateManager.VisualStateGroups> <Image Source="bounce_photo.png" Stretch="Fill" RenderTransformOrigin="0.5,0.5" x:Name="image"> <Image.RenderTransform> <TransformGroup> <ScaleTransform/> <SkewTransform/> <RotateTransform/> <TranslateTransform/> </TransformGroup> </Image.RenderTransform> </Image> <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> </UserControl.Resources> <Grid x:Name="LayoutRoot" Background="pink"> <Button Height="173" HorizontalAlignment="Left" Margin="8,0,0,18" Style="{StaticResource ButtonStyle1}" VerticalAlignment="Bottom" Width="150" Content=""/> <Button Height="173" HorizontalAlignment="Right" Margin="0,0,35,18" Style="{StaticResource ButtonStyle2}" VerticalAlignment="Bottom" Width="150" Content=""/> </Grid> The above mentioned is an xaml file built using Microsoft Expression Blend 2 I have to use this xaml file as resource in my sub project using visual studio(c++). For this i have to develop a c++ code. But i am very unfamiliar with this technology and i need some guidance to obtain the task. Please also tell me where can i learn to develop a c++ code for this xaml file. I have heard that silverlight has its own API's which is entirely different from the WIN32 API's. I am familiar using WIN32 API's but unfamiliar with this Silverlight Technology. Please guide me the step or the tutorial site where i can learn the following concepts: 1. c++ coding in visual studio for SWE where xaml file is added as resource in my sub project. for ex:- How to write a c++ code for windows embedded for an xaml file which will display images which acts as a button in the emulator ?

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  • How to remove all views in region in CompositeWPF/Silverlight

    - by Dan
    Hi. I want remove all views from my region in Composite. I'm using Silverlight 4.0. And unfortunately, this code crashes with OutOfRangeException inside Composite. List<object> views = new List<object>(_regionManager.Regions["NavigationRegion"].Views); foreach (object view in views) { _regionManager.Regions["NavigationRegion"].Remove(view); } This is my callstack: [External Code] Microsoft.Practices.Composite.Presentation!Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.OnCollectionChanged(System.Collections.Specialized.NotifyCollectionChangedEventArgs e = {System.Collections.Specialized.NotifyCollectionChangedEventArgs}) Line 102 + 0x24 bytes C# Microsoft.Practices.Composite.Presentation!Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.RemoveAndNotify(System.Collections.IList items = Count = 1) Line 45 + 0x2b bytes C# Microsoft.Practices.Composite.Presentation!Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.UnderlyingCollection_CollectionChanged(object sender = Count = 0, System.Collections.Specialized.NotifyCollectionChangedEventArgs e = {System.Collections.Specialized.NotifyCollectionChangedEventArgs}) Line 153 + 0xb bytes C# [External Code] Microsoft.Practices.Composite.Presentation!Microsoft.Practices.Composite.Presentation.Regions.Region.Remove(object view = {Kite.MyApp.SlUI.NavigationRegion.NavigationRegionView}) Line 230 + 0x1b bytes C# MyApp.SlUI!Kite.MyApp.SlUI.Components.ViewController.linksRegion_LanguageChanged(object sender = {Kite.MyApp.SlUI.Controls.LinksUserControl}, Kite.MyApp.SlUI.Common.EventArgs<string> e = {Kite.MyApp.SlUI.Common.EventArgs<string>}) Line 77 + 0x2d bytes C# MyApp.SlUI!Kite.MyApp.SlUI.Controls.LinksUserControl.OnLanguageChanged(string newLanguage = "en-GB") Line 37 + 0x32 bytes C# MyApp.SlUI!Kite.MyApp.SlUI.Controls.LinksUserControl.ComboBox_SelectionChanged(object sender = {System.Windows.Controls.ComboBox}, System.Windows.Controls.SelectionChangedEventArgs e = {System.Windows.Controls.SelectionChangedEventArgs}) Line 31 + 0xb bytes C# [External Code] What did I wrong? Hoping for you help :). Thank you.

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  • Use a resource dictionary as theme in Silverlight

    - by SaphuA
    Hello, I have developed an application which allows the user to switch between themes. I'm doing this by including the xaml file as a resource in my project and using the following code: MainTheme.ThemeUri = new Uri("SilverlightApplication1;component/Themes/[ThemeName]/Theme.xaml", UriKind.Relative); This worked well, untill I found these themes: http://timheuer.com/blog/archive/2010/05/17/silverlight-4-tools-released-and-new-application-templates.aspx The difference is that these themes consist of multiple files. So I made a Theme.xaml file that only includes MergedDictionaries so I could still use the code above. This is the Theme.xaml file for the Cosmopolitan theme. <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="CoreStyles.xaml"/> <ResourceDictionary Source="SDKStyles.xaml"/> <ResourceDictionary Source="Styles.xaml"/> <ResourceDictionary Source="ToolkitStyles.xaml"/> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> However, when I run the c# code above I get the following exception: System.Windows.Markup.XamlParseException: Failed to assign to property 'System.Windows.ResourceDictionary.Source'. Just to be clear, using the MergedDictionaries method does work when I set it in my App.xaml: <Application.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="Themes/Cosmopolitan/Theme.xaml"/> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Application.Resources> What am I doing wrong? Thanks!

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  • Silverlight ValidationSummary screen real estate

    - by Mark Cooper
    Silverlight 3; I have a ValidationSummary in the top row of my grid. When the ValidationSummary appears, it pushes my button row (row 3) off the bottom of the displayable screen. <Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch"> <Grid.RowDefinitions> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="36" /> </Grid.RowDefinitions> <di:ValidationSummary Grid.Row="0" /> <Grid x:Name="gridOuterContentHolder" Grid.Row="1"> <Grid.RowDefinitions> <RowDefinition Height="0.68*" /> <RowDefinition Height="5" /> <RowDefinition Height="0.32*" /> </Grid.RowDefinitions> <!-- elements removed for brevity --> </Grid> <StackPanel x:Name="stack" Grid.Row="2" Orientation="Horizontal" HorizontalAlignment="Right"> <Button Content="Delete" x:Name="btnDelete" Height="20" Width="75" /> </StackPanel> </Grid> I'm a code monkey not a pixel pusher and can't figure out which combination of Stretch's, Auto's and *'s I need. Any pushers out there that can help?? Thanks, Mark

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  • Problem with Silverlight 3 projects in Web Developer Express 2008

    - by MNT
    Hi, I have a strange problem when working with silverlight 3 projects in Web Developer Express 2008. Mainly, I cannot show the design view of a XAML file. Also the XAML files (markup) are shown as plain text files (No Syntax coloring & No Intellisense). However I can write an application that is compiled and run successfully. I have the following installed on my machine: Windows XP SP3 Visual Web Developer Express 2008 SP1 & .NET 3.5 SP1 SL3 Requirements I had a few problems while installing SL3 SDK & Tool for VS. I repeated the process many times until the installation succeeded. The main problem was in the "SL Tools for VS" installation where I used to get an error in the middle. My workaround was to extract the MSI file and manually run the VWDxxx installer from the extracted files. Is this the cause of the problem? Kindly advise as it's impractical to work w/o Intellisense. Thnak you

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  • Silverlight - Get the ItemsControl of a DataTemplate

    - by user208662
    Hello, I have a Silverlight application that is using a DataGrid. Inside of that DataGrid I have a DataTemplate that is defined like the following: <Grid x:Name="myGrid" Tag="{Binding}" Loaded="myGrid_Loaded"> <ItemsControl ItemsSource="{Binding MyItems}" Tag="{Binding}"> <ItemsControl.ItemTemplate> <DataTemplate> <StackPanel Orientation="Horizontal"> <StackPanel Orientation="Horizontal" Width="138"> <TextBlock Text="{Binding Type}" /> <TextBox x:Name="myTextBox" TextChanged="myTextBox_TextChanged" /> </StackPanel> </StackPanel> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> </Grid> When a user enters text into the TextBox, I have an event (myTextBox_TextChanged) that must be fired at this point. When that event gets fired, I would like to get the ItemsControl element that is the container for this TextBox. How do I get that ItemsControl from my event handler? Please note: Because the ItemsControl is in the DataTemplate of DataGrid, I don't believe I can just add an x:Name and reference it from my code-behind. Or is there a way to do that? Thank you!

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  • Silverlight Toolkit ListBoxDragTarget Only One Way

    - by Tom Allen
    I've got a Silverlight 3 app that has two ListBoxes that I need to be able to drag items between. I've got the toolkit control working so that I can drag from ListBox lbA to ListBox lbB but i then can't drag the item from lbB back to lbA. <toolkit:ListBoxDragDropTarget mswindows:DragDrop.AllowDrop="True"> <ListBox x:Name="lbA" Style="{StaticResource ListBoxStyle}"> <ListBox.ItemTemplate> <DataTemplate> <TextBlock Text="{Binding DisplayMember}"/> </DataTemplate> </ListBox.ItemTemplate> </ListBox> </toolkit:ListBoxDragDropTarget> <toolkit:ListBoxDragDropTarget mswindows:DragDrop.AllowDrop="True"> <ListBox x:Name="lbB" Style="{StaticResource ListBoxStyle}" Width="350"> <ListBox.ItemTemplate> <DataTemplate> <TextBlock Text="{Binding DisplayMember}"/> </DataTemplate> </ListBox.ItemTemplate> </ListBox> </toolkit:ListBoxDragDropTarget> I'm binding lbA to an ObservableCollection of MyObject items which is a parent class for objects MyObjectA and MyObjectB (and there is a mix of ChildObjectA and ChildObjectB items). Is the one way behaviour I'm seeing due to binding to a collection MyObjects or something else i'm missing?

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  • partial entity loading and management in silverlight / wcf ria

    - by Dan Wray
    I have a Silverlight 4 app which pulls entities down from a database using WCF RIA services. These data objects are fairly simple, just a few fields but one of those fields contains binary data of an arbitrarily size. The application needs access to this data basically asap after a user has logged in, to display in a list, enable selection etc. My problem is because of the size of this data, the load times are not acceptable and can approach the default timeout of the RIA service. I'd like to somehow partially load the objects into my local data context so that I have the IDs, names etc but not the binary data. I could then at a later point (ie when it's actually needed) populate the binary fields of those objects I need to display. Any suggestions on how to accomplish this would be welcome. Another approach which has occurred to me whilst writing this question (how often does that happen?!) is that I could move the binary data into a seperate database table joined to the original record 1:1 which would allow me to make use of RIA's lazy loading on that binary data. again.. comments welcome! Thanks.

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  • Serializing Exceptions WCF + Silverlight

    - by Bram
    I have a WCF service I use to submit bugs for my project. Snippet of the data class: Private _exception As Exception <DataMember()> _ Public Property Exception As Exception Get Return _exception End Get Set(ByVal value As Exception) _exception = value End Set End Property I have a Silverlight app that uses the WCF service to send any bugs home if and when they occur. This is the error I'm testing with: Dim i As Integer = 5 i = i / 0 The problem is SL is banging on with this message: System.ServiceModel.CommunicationException was unhandled by user code Message=There was an error while trying to serialize parameter :bug. The InnerException message was 'Type 'System.OverflowException' with data contract name 'OverflowException:http://schemas.datacontract.org/2004/07/System' is not expected. Add any types not known statically to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding them to the list of known types passed to DataContractSerializer.'. Please see InnerException for more details. Is there some trick to get a generic .NET Exception (any InnerException) to serialize properly? I'm not doing anything funky with the exception - it's just a plain 'ol exception Thanks for any help.

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  • How to customize HeaderTemplate of ValidationSummary Silverlight control?

    - by BravcM
    Hello, I'd like to customize HeaderTemplate of ValidationSummary control from Silverlight Toolkit and display localized Header. But I cant figure out how to display error counter right to header's text ... Can anybody help me with this? My current XAML code ... <sdk:ValidationSummary Grid.Row="3"> <sdk:ValidationSummary.HeaderTemplate> <DataTemplate> <Grid Background="Red"> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="Auto" /> </Grid.ColumnDefinitions> <TextBlock UseLayoutRounding="False" Foreground="White" Text="Editing Errors:" /> <TextBlock UseLayoutRounding="True" Foreground="White" FontWeight="Bold" Text="{Binding DisplayedErrors.Count}" Grid.Column="1" /> </Grid> </DataTemplate> </sdk:ValidationSummary.HeaderTemplate> Thanks in advance!

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  • Silverlight graphics pixel side position?

    - by Tuukka
    I try to port simple game to silverlight (SameGame). The problem is that my old source code used pixel sizes to allight game marks to board. I draw simple grid using lines and game mark (using rectangle). How i can set rentacle position correctly? Example 20 20 pixels to upper left corner). private void DrawGrid() { LayoutRoot.Children.Clear(); Rectangle r = new Rectangle(); r.Width = 20; r.Height = 20; r.Fill = new SolidColorBrush(Color.FromArgb(255, 0, 255, 0)); r.Stroke = new SolidColorBrush(Color.FromArgb(255, 0, 255, 0)); r.SetValue(Canvas.LeftProperty, (double)0); r.SetValue(Canvas.TopProperty, (double)0); LayoutRoot.Children.Add(r); Color GridColor = Color.FromArgb(0xFF, 0x00, 0x00, 0x00); for (int y = 0; y < 11; y++) { Line l = new Line(); l.X1 = 0; l.Y1 = 30 * y - 1; l.X2 = 20 * 30; l.Y2 = 30 * y - 1; l.Stroke = new SolidColorBrush(GridColor); l.StrokeThickness = 1; LayoutRoot.Children.Add(l); } for (int x = 0; x < 21; x++) { Line l = new Line(); l.X1 = 30 * x; l.Y1 = 0; l.X2 = 30 * x; l.Y2 = 10 * 30; l.Stroke = new SolidColorBrush(GridColor); l.StrokeThickness = 1; LayoutRoot.Children.Add(l); } }

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  • Book recommendation for Silverlight

    - by Mathias Weyel
    Hi there, yet another question for recommendations for a book on Silverlight. I look for a book that covers the UI and styling and, if possible, custom drawing and graphics. Very important for me is the style of the book - it should focus on the actual programming and not on where to click in Visual Studio to get things done. Let's take a fictional example for proper usage of the DataGrid control: Bad: To use the data grid, drag it from the toolbox onto the control. You can change the background color by clicking on “Background” in the properties. To define custom columns, click on columns and edit them in the configuration window that opens. Good: To use the DataGrid, you need a reference to the blah dll and declare the namespace in the XAML like this (blah), the data model should be like blah and if you want to define how the columns look like, you need to define them like this (more blah). And if you want to do this in C# because you for whatever reason aren’t able or willing to use XAML, this would look like blah. Bonus points for coverage of topics like how to manage resources (images/fonts) and internationalization. There are quite some snippets on how to do that on the internet but somehow each of them looks like they work but are not a proper way of doing it. cheers Mathias

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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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  • How to Store State in Silverlight WCF RIA Services

    - by peter
    Hi All, I am developing a silverlight 3 application using WCF RIA services. I am using the AuthenticationBase class to handle my authentication. As I understand it under the hood this uses the ASP .NET authentication libraries. When I log into the site the authentication service handles login state so that if I close the site and open it straight away I am still logged in according to the server. When the webpage is refreshed or closed and reloaded I can call the method, WebContextBase.Current.Authentication.LoadUser() And it goes back to the authentication service (running on the server) and figures out whether I am still logged into the site. If a timeout has occured the answer will be no. If that is the case I can show a login dialog. The problem I want to solve is that the authentication service consumes the password, and there is no way I can ever retrieve that password again. If the user logs into the site I want to store the password on the server, and return a token to the client side to match up with that password. I have some other services on the server side that need that password. So where should I store that password on the server? How can that be done? How does the WCF authentication store state?

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  • Is MVVM killing silverlight development?

    - by DeanMc
    This is a question I have had rattling around in my head for some time. I had a chat with a guy the other night who told me he would not be using the navigational framework because he could not figure out how it works with MVVM. As much as I tried to explain that patterns should be taken with a pinch of salt he would not listen. My point is this, patterns are great when they solve some problem. Sometimes only part of the pattern solves a particular problem while the other parts of it cause different problems. The goal of any developer is to build a solid application using a combination of patterns know how and foresight. I feel MVVM is becoming the one pattern to rule them all. As it is not directly supported by .Net some fancy business is needed to make it work. I feel that people are missing the point of the pattern, which is loosely coupled, testable code and instead jumping through hoops and missing out on great experiences trying to follow MVVM to the letter. MVVM is great but I wish it came with a warning or disclaimer for newbies as my fear is people will shy away from silverlight development for fear of being smacked with the mvvm stick. EDIT: Can I just add as an edit, I use and agree with MVVM as a pattern I know when it is and isn't feasible in my projects. My issue is with the encompassing nature it is taking, as if it HAS to be used as part of development. It is being used as an integral feature and not a pattern, which it is.

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  • Silverlight 3 + Java WebService

    - by Heko
    Hello! I have a Silverlight 3 project, and I need to call a Java WebService - the bindings are ok (SOAP 1.1 and basicHttpBinding): ClientConfig File: <configuration> <system.serviceModel> <bindings> <basicHttpBinding> <binding name="SkyinfoTestInterfaceExport2_SkyinfoTestInterfaceHttpBinding" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647"> <security mode="None"> <transport> <extendedProtectionPolicy policyEnforcement="Never" /> </transport> </security> </binding> </basicHttpBinding> </bindings> <client> <endpoint address="myAddress" binding="basicHttpBinding" bindingConfiguration="SkyinfoTestInterfaceExport2_SkyinfoTestInterfaceHttpBinding" contract="SkyInfoServiceReference.SkyinfoTestInterface" name="SkyinfoTestInterfaceExport2_SkyinfoTestInterfaceHttpPort" /> </client> </system.serviceModel> When I call a method on client I get this Policy error: An error occurred while trying to make a request to URI '...'. This could be due to attempting to access a service in a cross-domain way without a proper cross-domain policy in place, or a policy that is unsuitable for SOAP services. You may need to contact the owner of the service to publish a cross-domain policy file and to ensure it allows SOAP-related HTTP headers to be sent. This error may also be caused by using internal types in the web service proxy without using the InternalsVisibleToAttribute attribute. Please see the inner exception for more details. I know about those 2 policy XML filesbut Java EE service which I'm trying to call is hosted on a IBM WebSphere Process Server to which I don't have access. Does anybody know how to work around this policy exception?

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  • Silverlight 3 data-binding child property doesn't update

    - by sonofpirate
    I have a Silverlight control that has my root ViewModel object as it's data source. The ViewModel exposes a list of Cards as well as a SelectedCard property which is bound to a drop-down list at the top of the view. I then have a form of sorts at the bottom that displays the properties of the SelectedCard. My XAML appears as (reduced for simplicity): <StackPanel Orientation="Vertical"> <ComboBox DisplayMemberPath="Name" ItemsSource="{Binding Path=Cards}" SelectedItem="{Binding Path=SelectedCard, Mode=TwoWay}" /> <TextBlock Text="{Binding Path=SelectedCard.Name}" /> <ListBox DisplayMemberPath="Name" ItemsSource="{Binding Path=SelectedCard.PendingTransactions}" /> </StackPanel> I would expect the TextBlock and ListBox to update whenever I select a new item in the ComboBox, but this is not the case. I'm sure it has to do with the fact that the TextBlock and ListBox are actually bound to properties of the SelectedCard so it is listening for property change notifications for the properties on that object. But, I would have thought that data-binding would be smart enough to recognize that the parent object in the binding expression had changed and update the entire binding. It bears noting that the PendingTransactions property (bound to the ListBox) is lazy-loaded. So, the first time I select an item in the ComboBox, I do make the async call and load the list and the UI updates to display the information corresponding to the selected item. However, when I reselect an item, the UI doesn't change! For example, if my original list contains three cards, I select the first card by default. Data-binding does attempt to access the PendingTransactions property on that Card object and updates the ListBox correctly. If I select the second card in the list, the same thing happens and I get the list of PendingTransactions for that card displayed. But, if I select the first card again, nothing changes in my UI! Setting a breakpoint, I am able to confirm that the SelectedCard property is being updated correctly. How can I make this work???

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  • Silverlight Data Binding for Collection in Stack Panel

    - by Blake Blackwell
    I'm new to Silverlight, so I don't have a complete grasp of all the controls at my disposal. What I would like to do is use databinding and a view model to maintain a collection of items. Here is some mock code for what I'd like to do: Model public class MyItem { public string DisplayText { get; set; } public bool Enabled { get; set; } } ViewModel public class MyViewModel : INotifyPropertyChanged { private ObservableCollection<MyItem> _myItems = new ObservableCollection<MyItem>(); public ObservableCollection<MyItem> MyItems { get { return _myItems; } set { _myItems = value NotifyPropertyChanged(this, "MyItems"); } } } View <Grid x:Name="LayoutRoot" Background="White"> <StackPanel ItemsSource="{Binding MyItems}"> <StackPanel Orientation="Horizontal"> <CheckBox "{Binding Enabled, Mode=TwoWay}"></CheckBox> <TextBlock Text="{Binding DisplayText, Mode=TwoWay}" /> </StackPanel> </StackPanel> </Grid> So my end goal would be that every time I add another MyItem to the MyItems collection it would create a new StackPanel with checkbox and textblock. I don't have to use a stack panel but just thought I'd use that for this sample.

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  • Binding not working correctly in silverlight

    - by Harsh Maurya
    I am using a DataGrid in my silverlight project which contains a custom checkbox column. I have binded its command property with a property of my ViewModel class. Now, the problem is that I want to send the "selected item" of DataGrid through the command paramter for which I have written the following code : <sdk:DataGrid AutoGenerateColumns="False" Margin="10,0,10,0" Name="dataGridOrders" ItemsSource="{Binding OrderList}" Height="190"> <sdk:DataGrid.Columns> <sdk:DataGridTemplateColumn Header="Select"> <sdk:DataGridTemplateColumn.CellTemplate> <DataTemplate> <CheckBox> <is:Interaction.Triggers> <is:EventTrigger EventName="Checked"> <is:InvokeCommandAction Command="{Binding Source={StaticResource ExecutionTraderHomePageVM},Path=OrderSelectedCommand,Mode=TwoWay}" CommandParameter="{Binding ElementName=dataGridOrders,Path=SelectedItem}" /> </is:EventTrigger> <is:EventTrigger EventName="Unchecked"> <is:InvokeCommandAction Command="{Binding Source={StaticResource ExecutionTraderHomePageVM},Path=OrderSelectedCommand,Mode=TwoWay}" CommandParameter="{Binding ElementName=dataGridOrders,Path=SelectedItem}" /> </is:EventTrigger> </is:Interaction.Triggers> </CheckBox> But I am always getting null in the parameter of my command's execute method. I have tried with other properties of DataGrid such as Width, ActualHeight e.t.c. but of no use. What am I missing here ?

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  • Silverlight 4: StackPanel doesn't resize, when content gets more narrow

    - by Aaginor
    I am using Silverlight 4 with Blend 4. I have a (horizontal) stackpanel that includes some TextBoxes and a Button. The stackpanel is set to stretch to the size that the content uses. The TextBoxes are on autosize too. When I add text to the Textboxes, the textbox size grows and the stackpanel grows too. So far so good. When I remove text from the textboxes, the textbox size shrinks (as excepted), but the stackpanel size doesn't. Is there any trick to make the stackpanel change size, when the content (textboxes) getting smaller? Thanks in advance, Frank Here is the XAML for the UserControl: <Grid x:Name="LayoutRoot"> <StackPanel x:Name="StackPanelBorder" Orientation="Horizontal"> <TextBox x:Name="TextBoxCharacteristicName" TextWrapping="Wrap" Text="Tex"> </TextBox> <TextBox x:Name="TextBoxSep" TextWrapping="Wrap" Text="=" IsReadOnly="True"> </TextBox> <Button x:Name="ButtonRemove" Content="-" Click="ButtonAddOrRemove_Click"> </Button> </StackPanel> </Grid>

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  • Conditional execution of EventTriggers in Silverlight 3

    - by Jason
    I'm currently working on the UI of a Silverlight application and need to be able to change the visual state of a control to one of two possible states based on it's current state when handling the same event trigger. For example: I have a control that sits partially in a clipping path, when I click the visible part of the control I want to change the state to "visible" and if I click it again when it is in its "visible" state I want to change to the "hidden" state. Example XAML: <i:Interaction.Triggers> <i:EventTrigger EventName="MouseLeftButtonUp"> <ic:GoToStateAction StateName="Visible"/> <ic:GoToStateAction StateName="Hidden"/> </i:EventTrigger> </i:Interaction.Triggers> Where "i" is "System.Windows.Interactivity;assembly=System.Windows.Interactivity" and "ic" is "Microsoft.Expression.Interactivity.Core;assembly=Microsoft.Expression.Interactions". I'm currently working in Expression Blend 3 and would prefer to have a XAML only solution but am not opposed to coding this if it is completely necessary. I have tried recording a change in the target state name in Blend but this did not work. Any thoughts on this?

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  • How can I get the mouse wheel to work correctly with the Silverlight 4 ScrollViewer

    - by Ian Oakes
    When I use the following xaml in Silverlight 4, the ScrollViewer will not recognize the mouse wheel unless I click once on the scroll bar thumb, and keep the mouse over the scroll bar, while turning the mouse wheel. <Grid x:Name="LayoutRoot" Background="White"> <ScrollViewer> <StackPanel Name="stackPanel1"> <Button Content="Button 1" Width="150" /> <Button Content="Button 2" Width="150" Margin="0,20,0,0" /> <Button Content="Button 3" Width="150" Margin="0,20,0,0" /> <Button Content="Button 4" Width="150" Margin="0,20,0,0" /> <Button Content="Button 5" Width="150" Margin="0,20,0,0" /> <Button Content="Button 6" Width="150" Margin="0,20,0,0" /> <Button Content="Button 7" Width="150" Margin="0,20,0,0" /> </StackPanel> </ScrollViewer> </Grid> Has anyone else experience this, and is there any work around?

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  • How to print each object in a collection in a separate page in Silverlight

    - by Ash
    I would like to know if its possible to print each object in a collection in separate pages using Silverlight printing API. Suppose I have a class Label public class Label { public string Address { get; set; } public string Country { get; set; } public string Name { get; set; } public string Town { get; set; } } I can use print API and print like this. private PrintDocument pd; private void PrintButton_Click(object sender, RoutedEventArgs e) { pd.Print("Test Print"); } private void pd_PrintPage(object sender, PrintPageEventArgs e) { Label labelToPrint = new Label() { Name = "Fake Name", Address = "Fake Address", Country = "Fake Country", Town = "Town" }; var printpage = new LabelPrint(); printpage.DataContext = new LabelPrintViewModel(labelToPrint); e.PageVisual = printpage; } LabelPrint Xaml <StackPanel x:Name="LayoutRoot" VerticalAlignment="Center" HorizontalAlignment="Center"> <TextBlock Text="{Binding Name}" /> <TextBlock Text="{Binding Address}" /> <TextBlock Text="{Binding Town}" /> <TextBlock Text="{Binding Country}" /> </StackPanel> Now, say I've a collection of Label objects, List<Label> labels = new List<Label>() { labelToPrint, labelToPrint, labelToPrint, labelToPrint }; How can I print each object in the list in separate pages ? Thanks for any suggestions ..

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