wpf

webclient and expect100continue

What is the best way to set expect100continue when using WebClient(C#.NET). I have this code below, I still see 100 continue in the header. Stupid apache still complains with 505 error. string url = "http://aaaa.com"; ServicePointManager.Expect100Continue = false; WebClient service = new WebClient(); ...

How can I speed up Visual Studio 2010 text editor render speed?

Visual Studio 2010 moved to using WPF for rendering the editor. This is leading to slowdowns while I am editing code, especially if I'm running something else that uses other video capabilities. How can I speed this up? A new video card? New drivers? Settings? What technologies does WPF use to render and what video card would compl...

TwoWay Binding With ItemsControl

I'm trying to write a user control that has an ItemsControl, the ItemsTemplate of which contains a TextBox that will allow for TwoWay binding. However, I must be making a mistake somewhere in my code, because the binding only appears to work as if Mode=OneWay. This is a pretty simplified excerpt from my project, but it still contains t...

WPF format displayed text?

I have a column defined like this: <DataGridTextColumn Binding="{Binding Path=FileSizeBytes, Mode=OneWay}" Header="Size" IsReadOnly="True" /> But instead of displaying the file size as a big number, I'd like to display units, but still have it sort by the actual FileSizeBytes. Is there some way I can run it through a function or somet...

Adding ComboBoxItem to a combobox inside a user control (XAML/WPF)

I am currently learning to create custom controls in WPF. I successfully created a simple custom control using a Label and a Text Box. I was able to allow setting the Label text by DependencyProperty. Now I am creating a user control that has a ComboBox. I need to allow adding items to this ComboBox from outside the control. To achiev...

Is there a color dialog for WPF?

I am looking for a color dialog for WPF? Is there one built in? Should I build my own ? Or do Win 32 interop? If so, how? ...

CollectionChanged notification across threads?

I'm writing a download manager using C#/WPF, and I just encountered this error: This type of CollectionView does not support changes to its SourceCollection from a thread different from the Dispatcher thread. The basic flow of my program is that a few web pages/downloads are enqueued at the start, and then they're downloaded asynch...

Silverlight? WPF? or Windows Form?

After Silverlight 4.0 has been released with new WPF, I am kind of confused with these technologies: Silverlight? WPF? Windows Form? The main motive that we want to achieve for BIG business project is following: Performance Security And platform independent** If I consider all above three points then only Silverlight is the option a...

How to Implement Automatic paging in RichTextBox

i want such a RichTextBox that have paging instead of Scrollbar,if Document text cannot fit into the RichTextbox it will move to the next page instead of adding scroll ,How can i implement this functionality in WPF RichtextBox ,i have buttons Prev ,bext to move forward and back, Regards, Aamir ...

Function doesn't work, but it must work

private void Main_OnLayoutUpdated(object sender, EventArgs e) { label1.Content = Classes.Global.X.ToString(); Classes.Global.PositionChanged(this); } PositionChanged writes to X new x-position of window. It works, but as soon as I delete label1 it stops working. No errors. ...

Creating a semi-transparent blurred background WPF

Hi guys, I have a border, i want the background of this border to be partially transparent (opacity 0.8) but i do not want the image behind it to be well defined. The effect i am after is similar to the Windows Vista window border effect, where you can see that something is behind it but you cant tell what it is. A few clarifications:...

Problems with "global" exception handlers for unhandled exceptions in multithreaded WPF

I have a program that, among other things, needs to be able to refresh the contents of a directory when the user tells it to. The actual task doesn't really matter, but this is the simplest way of causing this problem to occur that I know of. If I tell it to open a directory that doesn't exist, I get the "unhandled exception" dialog in V...

Implement master detail in one datagrid in wpf

Hello, I have classes as following: public class Property { public string PropertyName { get; set; } public int SumSubPropertValue; private List<SubProperty> propertyList; public void CalculateSumSubPropertValue { // implementation} } public class SubProperty { public string SubPropertyName { get; set; } ...

Calling a datatrigger for a radio button inside a datagrid

I have a datagrid with one column having a radio button. I want to set the GroupName when a certain condition is reached. Below is the code <Custom:DataGrid.Columns> <!-- ONLY ENABLED WHEN THE ITEM TYPE IS SINGLESELECT OR SINGLESELECT WITH ADDIOTIONAL DATA--> <Custom:DataGridTemplateColumn Ca...

Bind Icon depending on Enum in WPF Treeview

Hi, I have at treeeview TextBox, and I want convert my Enum: <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=AcceptationStatusGlobalFlag}" /> public enum AcceptationStatusGlobalFlag { NotReady = 0, Ready = 1, AcceptedByAdmin=2 } To Icons. There will be 3 icons, let sa...

Does the managed main UI thread stay on the same (unmanaged) Operation System thread?

I am creating a managed WPF UI front-end to a legacy Win32-application. The WPF front-end is the executable; as part of its startup routines I start the legacy app as a DLL in a second thread. Any UI-operation (including CreateWindowsEx, etc.) by the legacy app is invoked back on the main UI-thread. As part of the shutdown process of th...

Visual Studio 2010 - WPF - Background-Image scaling problems

Hi. I experienced a Problem in Visual Studio 2010 and i dont know if its a bug or i just did somehting wrong. I have 6 Images(Icons) that all have the same size (50x60px), are of same type(png), made with same program(gimp), saved with same options. I want to use these icons as backgrounds for buttons. But the Images are scaled differe...

WPF4 DatePicker - adding time

Now that there is an official MS DatePicker in WPF4, I was wondering if there was a way to let it edit the Time part of a DateTime as well. I can't see anything, but it seems rather obvious to have missed out? ...

Visual Studio 2010 randomly crashes when editing XAML

Visual Studio 2010 RTM randomly crashes when editing XAML in a WPF application. I'm running it on Win 7 fully updated. The installed extensions/addons are: Resharper PowerCommands The crash log is: Faulting application name: devenv.exe, version: 10.0.30319.1, time stamp: 0x4ba1fab3 Faulting module name: clr.dll, version: 4.0.30319.1...

Image surrounded by text in WPF

Greetings, I have some control which display bunch of textblocks and image. I would like the image to be surrounded by text. I have already implemented some functionality by using FlowDocument and custom bindable run control. (These controls are included inside user control). When I generate lots of these controls in treeview, applicati...