/// <summary>
/// Drops the editor control.
/// </summary>
/// <param name="ctl">The control to drop.</param>
public void DropDownControl(Control ctl)
{
if (genericValueDropDownForm == null)
{
genericValueDropDownForm = new GenericValueDropDownForm(this);
}
genericValueDropDownForm.Visible = false;
genericValueDropDownForm.Component = ctl;
Rectangle editorBounds = editor.Bounds;
Size size = genericValueDropDownForm.Size;
// location of the form
Point location
= new Point(editorBounds.Right - size.Width,
editorBounds.Bottom + 1);
// location in screen coordinate
location = editor.Parent.PointToScreen(location);
// check the form is in the screen working area
Rectangle screenWorkingArea = Screen.FromControl(editor).WorkingArea;
location.X = Math.Min(screenWorkingArea.Right - size.Width,
Math.Max(screenWorkingArea.X, location.X));
if (size.Height + location.Y + editor.TextBox.Height > screenWorkingArea.Bottom)
{
location.Y = location.Y - size.Height - editorBounds.Height - 1;
}
genericValueDropDownForm.SetBounds(location.X, location.Y, size.Width, size.Height);
genericValueDropDownForm.Visible = true;
ctl.Focus();
editor.SelectTextBox();
// wait for the end of the editing
while (genericValueDropDownForm.Visible)
{
Application.DoEvents();
MsgWaitForMultipleObjects(0, 0, true, 250, 255);
}
// editing is done or aborted
}
