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  • How do I apply a ViewModel to the UserControl inside of a Page?

    - by Mike
    Doing something like this: <DataTemplate DataType="{x:Type vm:AllCustomersViewModel}"> <vw:AllCustomersView /> </DataTemplate> works in a ResourceDictionary for when I want to apply a ViewModel to a UserControl as root, but how do I the same thing when I have a UserControl inside of a Page? Would I create a ResourceDictionary for all my Pages then at the top of each Page do something like: <Page.Resources> <ResourceDictionary Source="../MainWindowResources.xaml"/> </Page.Resources> Any help is greatly appreciated, thanks!

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  • How to evenly space out GridViewColumns in GridView?

    - by Kugel
    Hello, This is my XAML: <ListView ItemsSource="{Binding Items}"> <ListView.View> <GridView> <GridViewColumn Header="Property1" DisplayMemberBinding="{Binding Property1}" /> <GridViewColumn Header="Property2" DisplayMemberBinding="{Binding Property2}" /> </GridView> </ListView.View> </ListView> I want these 2 columns to take up the width of ListView in 1:1 ratio. How can I achieve this?

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  • DataContext as Source for Converter Binding Within Resources

    - by loafofbread
    <Style TargetType="{x:Type local:SomeControl}"> <Canvas.DataContext> <ViewModels:VMSomeControl Model="{Binding RelativeSource={RelativeSource TemplatedParent}}" /> </Canvas.DataContext> <Canvas.Resources> <!-- is there a way to use a binding that points to the datacontext within the resources ? --> <Converters:SomeConverter x:Key="someConverter" SomeProperty="{Binding Path=Model.SomeProperty}" /> <!-- is there a way to point Directly to the TemplatedParent ? --> <Converters:SomeConverter x:Key="someConverter" SomeProperty="{TemplateBinding Path=SomeProperty}" /> </Canvas.Resources> <SomeFrameworkElement SomeProperty="{Binding Path=Model.SomeOtherProperty, Converter={StaticResource someConverter}}" /> </Canvas> is it possible to use bindings that use either the dataContext or the TemplatedParent Within a ControlTemplate's Root Visuals resourecs ?

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  • image button template?

    - by Rev
    Hi I want Image button with two state(normal , mouse over). that button must change image with Mouse Over event trigger automatically. this image button must be a user control. Also i want to set image for each state form code in which form i use that user control. Solution is using a template with "Value Converter" but i don't know how?

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  • Cannot access resource defined in app.xaml

    - by DerKlaus
    I am using Visual Studio 2010 RC1. I define a resource "Brush2" in app.xaml_: <Application x:Class="VideoThumbnails.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" StartupUri="MainWindow.xaml"> <Application.Resources> <RadialGradientBrush x:Key="Brush2" RadiusX="1" RadiusY="1" GradientOrigin="0.3,0.3"> <GradientStop Color="White" Offset="0"/> <GradientStop Color="#ffc0c0" Offset="1"/> </RadialGradientBrush> </Application.Resources> </Application> In my Mainwindow I am trying to use that resource: ... <Border Margin="4,2" BorderBrush="Black" BorderThickness="2" CornerRadius="4" ToolTip="{Binding Path=FullPath}" HorizontalAlignment="Stretch" Background="{StaticResource Brush2}"> ... No matter what I do it always raises an exception at runtime (Resource not found). I changed build action without success. How can I use resources defined in app.xaml?

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  • How do I turn off a custom IValueConverter at design time?

    - by Jonathan Allen
    How do I turn off a custom IValueConverter at design time? Basically I want to write this: Public Class MethodBinder Implements IValueConverter Public Function Convert(ByVal value As Object, ByVal targetType As System.Type, ByVal parameter As Object, ByVal culture As CultureInfo) As Object Implements IValueConverter.Convert If [DESIGN_TIME] Then Return Nothing If value IsNot Nothing Then Return CallByName(value, CStr(parameter), CallType.Method) Return Nothing End Function Public Function ConvertBack(ByVal value As Object, ByVal targetType As System.Type, ByVal parameter As Object, ByVal culture As CultureInfo) As Object Implements IValueConverter.ConvertBack Throw New NotSupportedException End Function End Class

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  • Alternative for ZAM 3D editor for Windows 7

    - by drasto
    I'm looking for some 3D editor that allows to create 3D objects and export them to XAML format. Because I'm under Windows Seven ZAM 3D editor is no option for me. I need to create relatively simple(but good looking) 3D objects, no game animations. I prefer simple and intuitive GUI, so Blender is no option for me... It would be good if the program had free trial. Any ides what might help me ? Thank you

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  • IndexOutofRangeException while using WriteLine in nested Parallel.For loops

    - by Umar Asif
    I am trying to write kinect depth data to a text file using nested Parallel.For loops with the following code. However, it gives IndexOutofRangeException. The code works perfect if using simple for loops but it hangs the UI since the depth format is set to 640x480 causing the loops to write 307200 lines in the text file at 30fps. Therefore, I switched to Parallel. For scheme. If I omit the writeLine command from the nested loops, the code works fine, which indicates that the IndexOutofRangeException is arising at the writeline command. I do not know how to troubleshoot this. Please advise. Any better workarounds to avoid UI freezing? Thanks. using (DepthImageFrame depthImageframe = d.OpenDepthImageFrame()) { if (depthImageframe == null) return; depthImageframe.CopyPixelDataTo(depthPixelData); swDepth = new StreamWriter(@"E:\depthData.txt", false); int i = 0; Parallel.For(0, depthImageframe.Width, delegate(int x) { Parallel.For(0, depthImageframe.Height, delegate(int y) { p[i] = sensor.MapDepthToSkeletonPoint(depthImageframe.Format, x, y, depthPixelData[x + depthImageframe.Width * y]); swDepth.WriteLine(i + "," + p[k].X + "," + p[k].Y + "," + p[k].Z); i++; }); }); swDepth.Close(); } }

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  • Comboxbox Selected Value In XAML

    - by Sharath
    hi, How to set the selectedvalue for combobox. For example i have some values from 1-10 and i want to select the 5th value. I tried using SelectedValue and SelectedItem, But its not working for me. Please reply Thanks Sharath

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  • Should I use DTOs as my data models in MVVM?

    - by JonC
    I'm currently working on what will be my first real foray into using MVVM and have been reading various articles on how best to implement it. My current thoughts are to use my data models effectively as data transfer objects, make them serializable and have them exist on both the client and server sides. It seems like a logical step given that both object types are really just collections of property getters and setters and another layer in between seems like complete overkill. Obviously there would be issues with INotifyPropertyChanged not working correctly on the server side as there is no ViewModel to which to communicate, but as long as we are careful about constructing our proper domain model objects from data models in the service layer and not dealing the the data models on the server side I don't think it should be a big issue. I haven't found too much info about this approach in my reading, so I would like to know if this is a pretty standard thing, is this just assumed to be the de facto way of doing MVVM in a multi-tier environment? If I've got completely the wrong idea about things then thoughts on other approaches would be appreciated too.

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  • How create processing events for array of TextBox [closed]

    - by ScarX
    I create array: TextBox[] textarray = new TextBox[100]; Then in cycle set this params, all items array situated in uniformGrid1 textarray[i] = new TextBox(); textarray[i].Height = 30; textarray[i].Width = 50; uniformGrid1.Children.Add(textarray[i]); How create events Click or DoubleClick that all items array? Sorry my English.

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  • Dynamic filling WrapPanel buttons from DB, setting the event handlers

    - by Anry
    I have a table: I'm using NHibernate. The class of entity: public class PurchasedItem { public virtual int Id { get; set; } public virtual Product Product { get; set; } public virtual int SortSale { get; set; } } I want to get all the records table PurchasedItems (my method returns an IList ). Records are sorted in descending order (column SortSale). How to fill WrapPanel buttons from the list IList ? For each button assign the event handler. By pressing the button display a message with the name of the product.

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  • Binding to two values

    - by developer
    Hi All, Is it possible to bind a label content to two values. For eg, I want a single label whose content is displayed as below, UserName= Firstname, Lastname where Firstname and Lastname, both are values from database. If I would be using to labels I would bind as Content={Binding Firstname} for one and Content={Binding Lastname} for another. But I want a single label to display both. Is it possible?

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  • Method works on Emulator but no on Microsoft Surface unit?

    - by Roflcoptr
    I have the following code. The StartRecord method trows an error on the Microsoft Surface Unit. But when I'm testing it on the emulator, it all works great. Any hints how 1) to find the exception that is thrown on the Microsoft Surface Unit? 2) to find the error in the code? any assumptions? private void StartRecord(object sender, ContactEventArgs e) { isRecording = true; StartButton.IsEnabled = false; recordTimer = new Timer(10); recordTimer.Elapsed += new ElapsedEventHandler(recordTimer_Elapsed); PlaybackRoot.Visibility = System.Windows.Visibility.Collapsed; EllapsedRecord.Visibility = System.Windows.Visibility.Visible; InputLevel.Visibility = System.Windows.Visibility.Visible; long time = DateTime.Now.Ticks; String fileName = Convert.ToString(time) + ".wav"; Console.WriteLine(fileName); startTime = DateTime.UtcNow; recordTimer.Start(); record = new AudioRecording(fileName); record.getSampleAggregator().MaximumCalculated += new EventHandler<MaxSampleEventArgs>(AudioControl_MaximumCalculated); record.start(); }

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  • Can't use Visual Studio 2008 Designer with MVVMLight V3 SP1

    - by mcauthorn
    I wish I knew what I did to cause this, but I cannot use the Visual Studio 2008 Designer at all with with MVVMLight templates. I receive a "Could not create an instance of type 'ViewModelLocator'. in any of my xaml pages. The application builds and runs fine but only the designer is broken. In the App.xaml is <Application x:Class="ExcelReportGenerator.App" 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" xmlns:vm="clr-namespace:ExcelReportGenerator.ViewModel" xmlns:res="clr-namespace:ExcelReportGenerator.Resources" Startup="Application_Startup" mc:Ignorable="d"> <Application.Resources> <!--Global View Model Locator--> <vm:ViewModelLocator x:Key="Locator" d:IsDataSource="True" /> </Application.Resources> I even receive the error when I create a brand new MVVMLight application. The interesting thing is if I use an express version of VS2010 I can view, edit and work in designer just fine. As much as I would love to go to VS2010, I can't right now convince IT to make that move.

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  • Distinguish UI change to variable from code-behind change

    - by Jay
    Like the title says I am trying to architecture into my application a way to distinguish the source of a variable change, either from UI or code-behind. My problem is that I need to trigger some action after a property changed its value, but I only need to do this when the change comes from the UI because otherwise I don-t want to perform that action. I am having some trouble because, for example when a checkbox(two way binding), changes state, my binded property gets updated and then I use the checked and uncheked events to trigger that action.The problem is that when I change the property in codebehind it also triggers those events and I do not want that. Right now, i am using a flag that enables, or not, the actions at the event handlers but I do not feel that this is a good idea. Any sugestions or ideas? I am considering using only one-way binding and control everything my self, using commands.

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  • How to calculate the correct height for an auto-expanding textbox in Silverlight?

    - by JacobE
    In my Silverlight app I want a multi-line text box to expand every time the user hits Enter. The difficult part is how to calculate the correct height based on the number of text lines. I have tried the following but the textbox becomes too small: box.Height = box.FontSize*lineCount + box.Padding.Top + box.Padding.Bottom + box.BorderThickness.Top + box.BorderThickness.Bottom; What am I missing here? Or maybe it can be done automatically somehow? Thanks, Jacob Edit: I suspect the problem to be in the FontSize property (does it use another size unit?)

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  • datagrid column custom check mark

    - by Berryl
    I want a read only column bound to a boolean that shows a check mark image when true and nothing when false. The problem is the false value; I just want to show whatever the background of the datagrid is, but I don't see how to clear the image source. What should the Value of the image source be to do this? Cheers, Berryl <DataGridTemplateColumn.CellTemplate> <DataTemplate> <Image Name="imgChecked" Source="\Img_Checkmark" /> <DataTemplate.Triggers> <DataTrigger Binding="{Binding IsPrimary}" Value="False"> <Setter TargetName="imgChecked" Property="Source" Value=""/> *** ??? *** </DataTrigger> </DataTemplate.Triggers> </DataTemplate> </DataGridTemplateColumn.CellTemplate>

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  • Returning objects from another thread?

    - by Mark
    Trying to follow the hints laid out here, but she doesn't mention how to handle it when your collection needs to return a value, like so: private delegate TValue DequeueHandler(); public virtual TValue Dequeue() { if (dispatcher.CheckAccess()) { --count; var pair = dict.First(); var queue = pair.Value; var val = queue.Dequeue(); if (queue.Count == 0) dict.Remove(pair.Key); OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, val)); return val; } else { dispatcher.BeginInvoke(new DequeueHandler(Dequeue)); } } This obviously won't work, because dispatcher.BeginInvoke doesn't return anything. What am I supposed to do? Or maybe I could replace dequeue with two functions, Peek and Pop, where Peek doesn't really need to be on the UI thread because it doesn't modify anything, right? As a side question, these methods don't need to be "locked" either, do they? If they're all forced to run in the UI thread, then there shouldn't be any concurrency issues, right?

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  • Swapping data binding in code

    - by Phil J Pearson
    I have two data-bound text boxes. One is bound to a string and the other to a number. The 'default' binding is set in XAML. Under some circumstances I need to reverse the bindings at runtime (the string is usually a prefix but sometimes it's a suffix). I have the following code in my view model, called when the window is loaded: Binding stringBinding = BindingOperations.GetBinding(view.seqLeft, TextBox.TextProperty); Binding numberBinding = BindingOperations.GetBinding(view.seqRight, TextBox.TextProperty); view.seqLeft.SetBinding(TextBlock.TextProperty, numberBinding); view.seqRight.SetBinding(TextBlock.TextProperty, stringBinding); After that the code loads the properties to which the binding refers. The problem is that the 'new' binding doesn't seem to work. What have I missed? Is there a better way?

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  • How to group consecutive similar items of a collection?

    - by CannibalSmith
    Consider the following collection. True False False False True True False False I want to display it in a structured way, say, in a TreeView. I want to be able to draw borders around entire groups and such. True Group True False Group False False False True Group True True False Group False False How do I accomplish this with as little procedural code as possible?

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  • Multiple objects in list, C#

    - by anon
    I'm looking for something similar to List<T>, that would allow me to have multiple T. For example: List<TabItem, DataGrid, int, string, ...> = new List<TabItem, DataGrid, int, string, ...>().

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