wpf

WPF DataGrid Group Style Sorting

I have a data grid that groups on a TypeId. When ever data is enetered into the fileds it wants to sort the data in the Grouped area. I cannot seem to turn that feature off. ...

Easy Threading in WPF

Hi everyone, I've been reading a lot about threading in C#, WPF and Silverlight but can't get it to work. My main problem is I have the _load (_Initialized) action and it has a lot of object creation and along with that I have timers working doing different things, this causes the startup time of the program to be very slow and obvious...

WPF DataGrid Hide RowDetails or Unselect Row

I have a DataGrid who's RowDetails is set to show when selected (RowDetailsVisibilityMode="VisibleWhenSelected"). Now I want to be able to get rid of it! I put a close button on the row details with this code: private void Button_Click(object sender, RoutedEventArgs e) { e.Handled = true; Button button = sender as Button; D...

WPF Combobox in Gridview's column

I got a combobox in the grid's column: <ListView> <ListView.View> <GridView> <GridViewColumn> <GridViewColumn.CellTemplate> <DataTemplate> <ComboBox /> </DataTemplate> ...

WPF Combobox textbox not updating when binding changes.

I have a WPF CombBox as follows: <ComboBox ItemsSource="{Binding Source={StaticResource myList}}" SelectedItem="{Binding Path=mySelectedItem}" /> The problem I have is that when the bound value changes, the selected value in the combobox's textbox does not update. (Note - the values in the combobox list do update). I am using ...

Remove WPF Validation adornment from Label

I am using databinding and IDataErrorInfo style validation in a form. This form includes a Label control for which I don't want to show the red adornment when validation fails. Can anyone recommend a way to remove this adornment from Label controls? ...

Porting/Writing WPF application which launches external applications to Silverlight 4 out of browser

WPF launches certain method which calls external exe and waits , and then accesses a file which was an output of external exe. Assuming I would build this application with a consideration of porting to Silverlight 4 later what should I do ? ...

How to rectify InvalidActiveXStateException in WPF?

I am trying to make a WPF Application and using the Visio Controls. I have a dll named AxInterop.Microsoft.Office.Interop.VisOcx and I refer it to instantiate an object of the type AxDrawingControl(). Now as soon as I write this code: AxDrawingControl objDrawControl=new AxDrawingControl(); and check the attributes of this object objD...

Change resource file on the fly

I woulld like to localize my WPF application with resource files. It good technics. But I have requirement to give ability to end user to change some localization information (for example some word traslation). It means change information in the resourse files on the fly (in run time). Is it possible ? ...

WPF - DataGrid Column's ToolTip visibility based on the column's data length

In my application, i have tried to implement the visibility of tooltip based on the dataGrid Column's text length by using a converter. I am facing some problems in displaying the toolTip text. In the ToolTip, TextBlock's text binding is not working. If its binded with some hard coded strings, it works fine. Here below is the code tha...

WPF ListView example showing all possible kinds of columns including hypelink and checkbox

Could anyone help with a link to comprehensive example or book with all possible kinds of columns for ListView. ListView is bound to Observable collection but read-only ( except checkboxes which are primarily to drive certain actions for selected rows for the application ). ...

How to bind a Listview MaxHeight to the current windows height?

How to bind a Listview MaxHeight to the current windows height? I'd like to limit the height to let's say 3/4 of the windows height. How can I do that? ...

WPF element binding across seperate windows-how to do?

I can do element-to-element binding in WPF: For example, I've got a window that has a slider control and a textbox, and the textbox dynamically displays the Value property of the slider as the user moves the slider. But how do i do this across seperate windows (in the same project, same namespace) ? The reason is that my main applicati...

How to implement Master-Detail with Multi-Selection in WPF?

Hi, I plan to create a typical Master-Detail scenario, i.e. a collection of items displayed in a ListView via DataBinding to an ICollectionView, and details about the selected item in a separate group of controls (TextBoxes, NumUpDowns...). No problem so far, actually I have already implemented a pretty similar scenario in an older pro...

access list element from thread

I have a "List" in the main application and I am trying to access its elements from within a thread. I am getting this exception: {"The calling thread cannot access this object because a different thread owns it."} System.SystemException {System.InvalidOperationException} ...

Create UserControl DependencyProperty of which value can be chosen in dropdown list (as combo box)

Hello everybody, I'm a starter at WPF, now i would like to make a WPF userControl library which include a Rating bar userControl. All the steps of creating the rating Bar has been done, however i would like to add a property RatingValue: public static readonly DependencyProperty RatingValueProperty = DependencyProperty.Regi...

Refreshing a binding that uses a value converter

I have a WPF UI that is bound to an object. I'm using a ValueConverter to convert a property to a specific image by a business rule: public class ProposalStateImageConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { var proposal...

Text orientation

Hi Guys I know you can do this to get vertical text in a tab header: <Window x:Class="Abodemploy.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="300" Width="300"> <Grid> <TabControl Margin="0" Name...

BitmapFrame in another thread

Hi I am using a WPF BackgroundWorker to create thumbnails. My worker function looks like: private void work(object sender, DoWorkEventArgs e) { try { var paths = e.Argument as string[]; var boxList = new List<BoxItem>(); foreach (string path in paths) { if (!string.IsNullOrEmpty(path)) ...

'System.OutOfMemoryException' was thrown

While Compiling the WPF Application for many times in a day it give following error 'Exception of type 'System.OutOfMemoryException' was thrown.' Can anyone know why this error occured and how to remove that error. But if visual studio is restarted then there is no such problem. thanks in advance ...