wpf

Does anyone know of a good load-on-demand combobox for WPF?

I have been searching for a while now, and have not been able to find a load-on-demand combo box that populates itself depending on what is typed in the combo-box. I also have a requirement that an item in the list must be selected (i.e.: free text can be entered but not "selected" - only a "search result" can be selected from the list i...

How to get a value from particular cell in WPF 4.0 Datagrid????

Hello Experts, How to get a value from particular cell in WPF 4.0 Datagrid???Which event will I use for it??? Thanks in Advance ...

Manipulating collections & the ViewModel pattern

I'm relatively new to WPF, and I'm having trouble with what I'm fairly certain is a relatively simple problem. I have my underlying data object, a Person: class Person { public string Surname {get; set; } public string Firstname {get; set; } public List<Address> Addresses {get; } } And I wish to display and edit this obje...

Deleting in WPF TreeView jumps to parent

I tried the solution discussed here: http://stackoverflow.com/questions/2030678/wpf-treeview-itemselected-moves-incorrectly-when-deleting-an-item however, I'm still seeing the selection jump to that parent when deleting an item. What am I doing wrong? MainWindow.xaml <Window x:Class="TreeViewDelete.MainWindow" xmlns="http://schema...

WPF MVVM View with varying number of objects. How to?

HI! I want to design view which will contain multiple objects in different locations. For example - it would be great if viewmodel could have field like list of objects (rectangles) and when i change/add members to list, new rectangles appear on view in specified positions. How do i create such view/viewmodel? ...

working with WPF usercontrol and MVVM

I have following questions Should the consumer of my usercontrol assign the usercontrol's DataContext or set some dependency property. (related to #3 : if DataContext then my individual items need to bind directly to the object given in DC, if DP then I have the luxury to have bind to any VM) If they set property, and if I am using 3 p...

How can I vertically align the bullet in a XAML TreeView HierarchicalDataTemplate?

When a node in my TreeView has multiple lines, the TreeView bullet gets vertically centered. How can I top-align the TreeView bullet? <pages:BasePage.Resources> <data:HierarchicalDataTemplate x:Key="OutlineTemplate" ItemsSource="{Binding OutlineDocumentObjects}"> <TextBlock Text="{Binding Line}" TextW...

wpf Storyboard.SetTarget vs Storyboard.SetTargetName

Why does Storyboard.SetTargetName works but Storyboard.SetTarget does not? Here xaml - <Grid Grid.Row="0" ClipToBounds="True"> <X:SmartContentControl x:Name="smartContent" Content="{Binding Path=MainContent}" ContentChanging="smartContent_ContentChanging"> <X:SmartContentControl.RenderTransform> ...

WPF Graph Layout Component

Does anyone know of or even better.. can wholeheartedly recommend a WPF graph layout component (Microsoft Research had GLEE a while back but it hasn't been updated after 1.0 since 2007 and isn't WPF etc) as seen e.g. in the screenshot below? I've seen yFiles WPF and Lasalle's AddFlow for WPF, but are there any alternatives? (c) Scree...

Defining context menus for WPF ListViews

I've given my WPF ListView a context menu: <TreeView ContextMenuOpening="TreeView_ContextMenuOpening"> <TreeView.ContextMenu> <ContextMenu> <MenuItem Name="NewInputMenuItem" Header="Add" Click="AddInputMenuItem_Click" /> <MenuItem Name="RemoveInputMenuItem" Header="Remove" Click="RemoveInputMenuItem_C...

"No Source Available" when managed exception occurs - WPF Visual Studio 2010

for some reason, my visual studio 2010 is not loading debug symbols on my own code. i am using a default WPF application solution. with a sample WPF app i am working on, and running in Debug mode. when i go into debug, i can step through my code. BUT when exception happens in my code (i.e. throw new Exception("test")), visual stud...

WPF application with many user controls

Hi, I'm writing an application that is supposed to show and hide the content of the main window stack panel based on the user choice. For example, the user clicks on the button that displays the list of the customers, then click on the button that displays the ordering form. The customers content should be hidden and the ordering form sh...

SSRS Report problem in wpf

DataTable reportData = this.GetReportData(startId, endId, empId, minAmount, reportType); ReportViewer reportViewer = new ReportViewer(); reportViewer.ProcessingMode = ProcessingMode.Local; reportViewer.LocalReport.ReportEmbeddedResource = "PDCL.ERP.Modules.Marketing.Reports.rptDoctorDeta...

What does Silverlight offer?

I'm working with C# and WPF and I would like to study something related to web programming. I already know HTML and CSS, and since I'm working with WPF, I am wondering if going into Silverlight is a good choice to start web developing. Can it be a substitute of server-side programming languages, like PHP or ASP .NET? What do you suggest?...

WPF Window Top Won't Change.

Hi, I am using animations with my window to slide out or slide back up. But when these animations are not used. I would like to use Window.Top to set the position of the window, but I think due to animations I cannot set the top. I was wondering if anyone knows how to fix this? Thanks example. window.top is already = 33. but when is a...

Where to store common application settings

I want to move my application settings out of XAML and into a config file. For example, ToolTips and Content strings for Buttons/CheckBoxes and Labels. Is this the job of a ResourceDictionary, or should I use the App.Config or Settings.settings file? The ToolTips and Content strings are not really per user, they are more Application w...

Is there a way to emulate the Console in a Silverlight or WPF application?

I really like using Console applications to learn different aspects of .NET programming. I'm wondering if there is a way to emulate the Console in a Silverlight or WPF application. Is there already an open source Console control that I could plug into my application? Most importantly, I'd need to be able to emulate the appropriate Rea...

wpf datagrid selected row foreground. i want to be it as unselected one

Hello, i have datagrid and i style cell in it like this <Style x:Key="EditCellStyle" TargetType="{x:Type wpftk:DataGridCell}"> <Style.Triggers> <!-- Highlight selected rows --> <Trigger Property="IsSelected" Value="True"> <Setter Property="Background" Value="Lavender" /> <Setter Property="Bor...

Is there simple way to play an rtp video/audio stream in WPF?

I need to create a WPF control that will play an rtp stream with the requirement that the latency needs to be as low as possible. I've looked at the following two projects: http://vlcdotnet.codeplex.com/ http://wpfmediakit.codeplex.com/ As far as I know, I can't use VLC because we're shipping a commercial application with a more rest...

[wpf] drag-drop-operations causing drag operations to be invoked more than once.

I want to enable drag and drop operations in my application (c#, wpf). However I’ve concluded that my current model sometimes calls event duplicated. In the sample code below one sees the events that I’ve added to buttons in a stack-panel. The Stack-panel is data-bound against a collection of IToolboxItem. I’ve determined that due STA e...