| public GetContainerControl ( ) : IContainerControl | ||
| return | IContainerControl | |
internal void FocusActiveControlInternal()
{
if (active_control != null && active_control.Visible)
{
// Avoid focus loops, especially with ComboBoxes, on Win98/ME.
IntPtr focusHandle = XplatUI.GetFocus();
if (focusHandle == IntPtr.Zero || Control.FromChildHandle(focusHandle) != active_control)
{
XplatUI.SetFocus(active_control.Handle);
}
}
else
{
// Determine and focus closest visible parent
ContainerControl cc = this;
while (cc != null && !cc.Visible)
{
Control parent = cc.Parent;
if (parent != null)
{
cc = parent.GetContainerControl() as ContainerControl;
}
else
{
break;
}
}
if (cc != null && cc.Visible)
{
XplatUI.SetFocus(cc.Handle);
}
}
}
private bool ActivateControlInternal(Control active)
{
bool activated = true;
bool activate = false;
ContainerControl container;
Control parent = base.Parent;
if (parent != null)
{
container = parent.GetContainerControl() as ContainerControl;
if (container != null && container.ActiveControl != this)
{
activate = true;
if (!container.ActivateControlInternal(this))
{
return(false);
}
}
}
if (active != activeControl || activate)
{
if (active == this)
{
activated = SetActiveControl(null);
}
else
{
activated = SetActiveControl(active);
}
}
return(activated);
}
private static void ExtractErrorProviders(Control control, ICollection<ErrorProvider> errorProviders)
{
//use reflection to get to "components" field
var containerControl = control.GetContainerControl();
if (containerControl != null)
{
FieldInfo componentField = containerControl.GetType()
.GetField( "components", BindingFlags.NonPublic | BindingFlags.Instance );
if (componentField != null)
{
//get the component collection from field
object components = componentField.GetValue(containerControl);
if (components != null)
{
//locate the ErrorProvider within the collection
var container = components as IContainer;
if (container != null)
{
foreach (ErrorProvider provider in container.Components.OfType<ErrorProvider>())
{
if (!errorProviders.Contains( provider ))
errorProviders.Add( provider );
}
}
}
}
}
}
public static object CallControlGetContainerControl(Control c, object[] obj)
{
return c.GetContainerControl();
}
public static object CallControlGetContainerControl(Control c, object[] obj)
{
return(c.GetContainerControl());
}
protected virtual ErrorProvider GetErrorProvider(Control rootControl)
{
return new ErrorProvider { ContainerControl = rootControl.GetContainerControl() as ContainerControl };
}
public void TestPublicMethods ()
{
// Public Methods that force Handle creation:
// - CreateControl ()
// - CreateGraphics ()
// - GetChildAtPoint ()
// - Invoke, BeginInvoke throws InvalidOperationException if Handle has not been created
// - PointToClient ()
// - PointToScreen ()
// - RectangleToClient ()
// - RectangleToScreen ()
Control c = new Control ();
c.BringToFront ();
Assert.IsFalse (c.IsHandleCreated, "A1");
c.Contains (new Control ());
Assert.IsFalse (c.IsHandleCreated, "A2");
c.CreateControl ();
Assert.IsTrue (c.IsHandleCreated, "A3");
c = new Control ();
Graphics g = c.CreateGraphics ();
g.Dispose ();
Assert.IsTrue (c.IsHandleCreated, "A4");
c = new Control ();
c.Dispose ();
Assert.IsFalse (c.IsHandleCreated, "A5");
c = new Control ();
//DragDropEffects d = c.DoDragDrop ("yo", DragDropEffects.None);
//Assert.IsFalse (c.IsHandleCreated, "A6");
//Assert.AreEqual (DragDropEffects.None, d, "A6b");
//Bitmap b = new Bitmap (100, 100);
//c.DrawToBitmap (b, new Rectangle (0, 0, 100, 100));
//Assert.IsFalse (c.IsHandleCreated, "A7");
//b.Dispose ();
c.FindForm ();
Assert.IsFalse (c.IsHandleCreated, "A8");
c.Focus ();
Assert.IsFalse (c.IsHandleCreated, "A9");
c.GetChildAtPoint (new Point (10, 10));
Assert.IsTrue (c.IsHandleCreated, "A10");
c.GetContainerControl ();
c = new Control ();
Assert.IsFalse (c.IsHandleCreated, "A11");
c.GetNextControl (new Control (), true);
Assert.IsFalse (c.IsHandleCreated, "A12");
#if NET_2_0
c.GetPreferredSize (Size.Empty);
Assert.IsFalse (c.IsHandleCreated, "A13");
#endif
c.Hide ();
Assert.IsFalse (c.IsHandleCreated, "A14");
c.Invalidate ();
Assert.IsFalse (c.IsHandleCreated, "A15");
//c.Invoke (new InvokeDelegate (InvokeMethod));
//Assert.IsFalse (c.IsHandleCreated, "A16");
c.PerformLayout ();
Assert.IsFalse (c.IsHandleCreated, "A17");
c.PointToClient (new Point (100, 100));
Assert.IsTrue (c.IsHandleCreated, "A18");
c = new Control ();
c.PointToScreen (new Point (100, 100));
Assert.IsTrue (c.IsHandleCreated, "A19");
c = new Control ();
//c.PreProcessControlMessage ???
//c.PreProcessMessage ???
c.RectangleToClient (new Rectangle (0, 0, 100, 100));
Assert.IsTrue (c.IsHandleCreated, "A20");
c = new Control ();
c.RectangleToScreen (new Rectangle (0, 0, 100, 100));
Assert.IsTrue (c.IsHandleCreated, "A21");
c = new Control ();
c.Refresh ();
Assert.IsFalse (c.IsHandleCreated, "A22");
c.ResetBackColor ();
Assert.IsFalse (c.IsHandleCreated, "A23");
c.ResetBindings ();
Assert.IsFalse (c.IsHandleCreated, "A24");
c.ResetCursor ();
Assert.IsFalse (c.IsHandleCreated, "A25");
c.ResetFont ();
Assert.IsFalse (c.IsHandleCreated, "A26");
c.ResetForeColor ();
Assert.IsFalse (c.IsHandleCreated, "A27");
c.ResetImeMode ();
Assert.IsFalse (c.IsHandleCreated, "A28");
c.ResetRightToLeft ();
Assert.IsFalse (c.IsHandleCreated, "A29");
c.ResetText ();
Assert.IsFalse (c.IsHandleCreated, "A30");
c.SuspendLayout ();
Assert.IsFalse (c.IsHandleCreated, "A31");
c.ResumeLayout ();
Assert.IsFalse (c.IsHandleCreated, "A32");
#if NET_2_0
c.Scale (new SizeF (1.5f, 1.5f));
Assert.IsFalse (c.IsHandleCreated, "A33");
#endif
c.Select ();
Assert.IsFalse (c.IsHandleCreated, "A34");
c.SelectNextControl (new Control (), true, true, true, true);
Assert.IsFalse (c.IsHandleCreated, "A35");
c.SetBounds (0, 0, 100, 100);
Assert.IsFalse (c.IsHandleCreated, "A36");
c.Update ();
Assert.IsFalse (c.IsHandleCreated, "A37");
}
