XXX Chats

3d dating software

Wpf datatrigger binding not updating

They allow you to do stuff that would normally be done in code-behind completely in markup instead, which is all a part of the ongoing process of separating style and code.

In the previous article we saw how changes in a Text Box was not immediately sent back to the source.

Instead, the source was updated only after focus was lost on the Text Box.

The other options are Property Changed, Lost Focus and Explicit.

The first two has already been described, while the last one simply means that the update has to be pushed manually through to occur, using a call to Update Source on the Binding.

We then add a trigger, which listens to the Is Mouse Over property - once this property changes to True, we apply two setters: We change the Foreground to red and then we make it underlined.

wpf datatrigger binding not updating-64

This is a great example on how easy it is to use triggers to apply design changes, completely without any code-behind code.

If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site.

So far, we worked with styles by setting a static value for a specific property.

In above example even if Property A becomes true then text of the textblock will remain "Default Value" instead of "Updated Value".

Fix: In order to work it properly, you need to specify the "Default Value" in style not with the control.

Comments Wpf datatrigger binding not updating