MS defines attached properties like 'Grid.RowProperty' and 'Grid.ColumnProperty', but in XAML you just call it with 'Grid.Row' and 'Grid.Column' I tried doing the same with an attached property called 'MyValProperty' that was registered with the name 'MyVal' on the class 'Foo', but the XAML won't let me type 'Foo.MyVal' and instead make...
I have a custom control embedded within a TabItem of the TabControl. TabControl is Content of main Usercontrol as follows: <UserControl x:Class="ControlsLibrary.wpf.Alerts.UserControl1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Height="300" Width...
Initially I am populating 100 rows in Data grid, when user scroll the grid rows, I want to populate another 100 rows. I am using wpf data grid, I have not found any event of data grid that I can catch to accomplish this task. Then I have used scroll viewer control and try to catch change event where I know that my scroll viewer reach at ...
Hello. When I place Button in grid and add to is's click action: this.Close(); It's not working. I want to be able to ask user before exit so I want to use Close(). I don't want to use Application.Shutdown(); How to solve it. ...
Hi All, I have a WPF window / form with various controls. I have set the tabindexes in the desired ordered but am getting strange behavior. When tabbing through the window, the order should be as follows: first text boxes on the left, then the date controls on the right, then my tab control and tab pages and then only the buttons. Bu...
Hello everyone I'm trying to style an element in WPF which displays a yellow border around anything thats in it and shows a tool-tip when the cursor is over it. The problem is that I don't have much of an idea how to do this and anything I tried does not seem to work. Here is what I have until now: <Style x:Key="HistoryElementStyle" ...
I wonder if I am doing something wrong? My CurrentChanged does not seem to trigger. It only triggers on application start ListItems = new ObservableCollection<string>(); ListItems.Add("hello"); ListItems.Add("world"); ListItems.Add("foo"); ListItems.Add("bar"); ListItems.Add("baz"); viewSource = CollectionViewSource.GetDefaultView(ListI...
I have been reading on Dependency properties for a few days and understand how they retrieve the value rather than to set/get them as in CLR properties. Feel free to correct me if I am wrong. From my understanding all WPF controls like a TextBlock, Button etc that derive from DependencyObject would also contain dependency properties to ...
Hello... I have a style which underlines the textblock when it is mouseovered... How ever i need when it is clicked to change its font weight to bold(selected).. any idea? ...
Hi all What's the best way to add margin between columns or rows in a WPF or Silverlight grid? Add fixed width/height columns/rows to the grid Add margin to the grid child controls Anything else? Thanks in advance ...
Hello, I have many XML files with "Build Action" set as "Resource". I can access them from code using the well known pack URI scheme, or just a relative URI (which is actually a valid pack URI, as stated by Microsoft in the pack URI msdn page, so everything is a pack uri :p), like this : Uri uri1 = new Uri("pack://application:,,,/someF...
Hi all, I've used WPF for quite some time now, but I've never looked serious into animation. I'm trying to achieve the following, but until now, not successful. I have a class called "Property". This class has the ability to fire an event: public class Property { // ... public event System.Windows.RoutedEventHandler Attract; ...
I'm currently trying to convert a wpf form with several textboxes on it to RichTextBoxes to allow for better editing functionality. The original textboxes were all linked to an underlying storage class using databinding to a data context upon navigation to the page. public class Storage { public String IntroFormText { get; set; } pu...
Hi all How can I forbid the Backspace-Key as easy as possible in a WPF-Application? The KeyDown-Event don't catch at the DEL and the Backspace-Key. Thank you! ...
I have a listbox to display a datasource. The datasource has only one field ("ClassName"). I want the listbox is displayed by 2 branches. Example: ClassName: ClassName1 ClassName2 ClassName3 ClassName4 Display: => ClassName1 ClassName2 ClassName3 ClassName4 Just tell me how to do that please! thanks! ...
I have declared <InputBindings> <UserControl.InputBindings> <KeyBinding Key="C" Modifiers="Ctrl" Command="{Binding CopyImageCommand}" /> <KeyBinding Key="V" Modifiers="Ctrl" Command="{Binding PasteImageCommand}" /> </UserControl.InputBindings> For testing purposes, I have added buttons bound to those commands too <Button Comm...
Can I Store more than 1 type in the Clipboard? Eg. like Text & Image. say the user pastes in a text editor, he gets the text and if he pastes in something like photoshop, he gets the image. I thought it was possible but I tried Clipboard.Clear(); Clipboard.SetText(img.DirectLink); BitmapImage bitmapImage = new BitmapImage(); bitmapIma...
I am facing a problem with DataBinding in WPF:::: The below code is working: <TextBox Text="{Binding ProcessStepBlock.ProcessStep[2].ProcessDescription}"></TextBox> <TextBox Text="{Binding ProcessStepBlock.SelectedIndex}" ></TextBox> The below code is not working:It gives me a binding error BindingExpression path error: '[ ]' prope...
I generate the XAML codes which actually describe a valid grid control - called the GridXAML. I want to create a grid object and add it to a stackpanel on my form. How can I 1) create an object from its XAML string value, and 2) add it dynamically to a panel? Please help! Giving a specific sample context as below. The generated grid's...
hi how can i validate inputs against the required validation for the controls when a submit button is presed. ...