tao wen
Posts: 12
Joined: 2007-07-30
|
I have a problem with using Drag Drop on wpf windows opened from a add-in created by add-in express.
what I do is, show the window:
AddinStartupComplete += delegate
{
new Application().Run(new MainWindow());
};
do drag drop:
PreviewKeyUp += delegate
{
DragDrop.DoDragDrop(this, new DataObject("Hello"), DragDropEffects.All);
};
and try to respond to:
DragOver += delegate
{
MessageBox.Show("Called");
};
The data object have been set correctly, as the outlook can accept it. But our DragOver event will never be fired. |
|
Sergey Grischenko
Posts: 5441
Joined: 2004-07-05
|
Hi Tao.
Do you return DragDropEffects.Move in the GiveFeedback event handler of the form?
P.S. We always do our best to answer your forum requests as soon as possible. However, we apply the rule "first in first out" with Premium Support Service subscribers taking priority. Please understand it may take us some time to do research on the issue. Please be assured we will let you know as soon as the best possible solution is found |
|
tao wen
Posts: 12
Joined: 2007-07-30
|
|
I tried to handle GiveFeedback event handler, but it was not being called at all. But QueryContinueDrag has been called, and I returned continue. It seems that the wpf can act as drop source, but failed to act as drop target. |
|
tao wen
Posts: 12
Joined: 2007-07-30
|
fixed by:
Loaded += delegate
{
IntPtr windowHandle = new WindowInteropHelper(this).Handle;
typeof (DragDrop).GetMethod("RegisterDropTarget", BindingFlags.Static | BindingFlags.NonPublic).
Invoke(null, new object[] {windowHandle});
}; |
|
Forums
Topics
Search
Help
Login
Register