Set doubleditbox (and int32editbox) in edit mode when clicking on the white space

Hello,

You might be able to override the edit box's OnMouseLeftButtonDown method.  Call the base method first and then do a hit test to see if the mouse was to the right of the TextBoxBase control in there.  If so, then change the selection properties on that TextBoxBase.

Thank you. This got me almost there. The problem now is that when I click and drag (in order to select the text) the text does not get selected.

I have to do the operation twice to make it happen, and this after I override the OnMouseMove method.

Can you please take a look at this code and see what is missing?

I have a CustomDoubleEditBox that derives from DoubleEditBox.

The I override the following two methods:

protected override void OnMouseMove(MouseEventArgs e)
{
      base.OnMouseMove(e);
      if (e.LeftButton == MouseButtonState.Pressed)
      {
            MaskedBox.CaptureMouse();
            MaskedBox.InvalidateArrange();
      }
}

protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
      base.OnMouseLeftButtonDown(e);
      var uiElement = InputHitTest(e.GetPosition(this));
      if ((uiElement as Grid) == null)
      {
            MaskedBox.Focus();
            MaskedBox.SelectionLength = 0;
            MaskedBox.CaretIndex = MaskedBox.Text.Length;
     }
}

private MaskedTextBox MaskedBox

{
    get
    {
         return _maskedBox ?? (_maskedBox = (MaskedTextBox)VisualTreeHelperExtended.GetFirstDescendant(this,

         typeof(MaskedTextBox)));
    }
}

THank you very much

Hello,

What you are trying to do with starting a selection unfortunately won't work with the current codebase.  There is an internal mouseSelectionActive field in TextBoxBase that gets set to true only in MaskedTextBox.OnMouseLeftButtonDown if the mouse is over the control.  Without that flag set, selection won't ever start.