The ChildWindow is a modal window, but it does not block. Is there any way to make it blocking? I basically want a ShowDialog() method that will call ChildWindow.Show() but then not return until the user has closed the ChildWindow. I tried using Monitor.Enter() to block after ChildWindow.Show(), but the ChildWindow never rendered and the browser just hung. Anyone have any ideas?
You could try to always cancel the close event and set the DialogResult later.
void ConfigTemplatePopup_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
if (tmpDialogResult != null || DialogResult == true) return;
tmpDialogResult = DialogResult; //this is a field
e.Cancel = true;
var myMessageBox = new WspMessageBox("Are you sure you want to close?", true);
myMessageBox.Closed += (s, e2) =>
{
if (wspMessageBox.DialogResult == true)
{
DialogResult = tmpDialogResult;
}else
{
tmpDialogResult = null;
}
};
myMessageBox.Show();
}
I hacked away at creating a "blocking" modal dialog, by having a custom control that has a vertical- and horizontal alignment as stretch, and then add that as a child of the layout of the current control.
e.g.
<Grid x:Name="LayoutRoot" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<Rectangle Fill="LightBlue" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Opacity="0.3" />
</Grid>
and then in the custom control
Utilities.UITools.MessageBox x = new Utilities.UITools.MessageBox();
x.SetError(e.Result);
this.LayoutRoot.Children.Add(x);
Depending on what has to be displayed in the modal, I dynamically add controls to the modal layout. Clearly, not an elegant solution, but at least it works.