| public SelectNextControl ( Control ctl, bool forward, bool tabStopOnly, bool nested, bool wrap ) : bool | ||
| ctl | Control | |
| forward | bool | |
| tabStopOnly | bool | |
| nested | bool | |
| wrap | bool | |
| return | bool | |
// CSS added for keyboard interop
protected override bool ProcessDialogKey(Keys keyData)
{
_focusTarget.Enabled = false;
try
{
if ((keyData & (Keys.Alt | Keys.Control)) == Keys.None)
{
Keys keyCode = (Keys)keyData & Keys.KeyCode;
if (keyCode == Keys.Tab || keyCode == Keys.Left ||
keyCode == Keys.Right || keyCode == Keys.Up ||
keyCode == Keys.Down)
{
if (this.Focused || this.ContainsFocus)
{
// CSS: In WF apps, by default, arrow keys always wrap within a container
// However, we don't want them to wrap in the Adapter, which always has only
// one immediate child
if ((keyCode == Keys.Left || keyCode == Keys.Right || keyCode == Keys.Down || keyCode == Keys.Up) &&
(this.ActiveControl != null && this.ActiveControl.Parent == this))
{
SWF.Control c = this.ActiveControl.Parent;
return(c.SelectNextControl(this.ActiveControl, keyCode == Keys.Right || keyCode == Keys.Down, false, false, false));
}
else
{
return(base.ProcessDialogKey(keyData));
}
}
}
}
return(false);
}
finally { _focusTarget.Enabled = true; }
}
// Process a key mnemonic. For labels, we pass the selection
// focus onto the control that follows the label.
protected override bool ProcessMnemonic(char charCode)
{
if (useMnemonic && IsMnemonic(charCode, Text))
{
Control parent = Parent;
Control hierarchy = parent;
while (hierarchy != null)
{
if (!hierarchy.Enabled || !hierarchy.Visible)
{
return(base.ProcessMnemonic(charCode));
}
hierarchy = hierarchy.Parent;
}
if (parent != null)
{
if (parent.SelectNextControl(this, true, false, true, false) && !parent.ContainsFocus)
{
parent.Focus();
}
return(true);
}
}
return(base.ProcessMnemonic(charCode));
}
/// <include file='doc\Label.uex' path='docs/doc[@for="Label.ProcessMnemonic"]/*' />
/// <internalonly/>
/// <devdoc>
/// <para>
/// Overrides Control. This is called when the user has pressed an Alt-CHAR
/// key combination and determines if that combination is an interesting
/// mnemonic for this control.
/// </para>
/// </devdoc>
protected override bool ProcessMnemonic(char charCode)
{
if (UseMnemonic && IsMnemonic(charCode, Text) && CanProcessMnemonic())
{
Control parent = ParentInternal;
if (parent != null)
{
IntSecurity.ModifyFocus.Assert();
try {
if (parent.SelectNextControl(this, true, false, true, false))
{
if (!parent.ContainsFocus)
{
parent.Focus();
}
}
}
finally {
System.Security.CodeAccessPermission.RevertAssert();
}
}
return(true);
}
return(false);
}
protected internal override bool ProcessMnemonic(char charCode)
{
if ((!this.UseMnemonic || !Control.IsMnemonic(charCode, this.Text)) || !this.CanProcessMnemonic())
{
return(false);
}
Control parentInternal = this.ParentInternal;
if (parentInternal != null)
{
System.Windows.Forms.IntSecurity.ModifyFocus.Assert();
try
{
if (parentInternal.SelectNextControl(this, true, false, true, false) && !parentInternal.ContainsFocus)
{
parentInternal.Focus();
}
}
finally
{
CodeAccessPermission.RevertAssert();
}
}
return(true);
}
/// <devdoc>
/// Process an arrowKey press by selecting the next control in the group
/// that the activeControl belongs to.
/// </devdoc>
/// <internalonly/>
private bool ProcessArrowKey(bool forward)
{
Control group = this;
if (activeControl != null)
{
group = activeControl.ParentInternal;
}
return(group.SelectNextControl(activeControl, forward, false, false, true));
}
// This will select the correct active control in the containerControl (if the passed in control is a containerControl)
private static void SelectNextActiveControl(Control ctl, bool forward, bool tabStopOnly, bool nested, bool wrap)
{
ContainerControl container = ctl as ContainerControl;
if (container != null)
{
bool correctParentActiveControl = true;
if (container.ParentInternal != null)
{
IContainerControl c = container.ParentInternal.GetContainerControlInternal();
if (c != null)
{
c.ActiveControl = container;
correctParentActiveControl = (c.ActiveControl == container);
}
}
if (correctParentActiveControl)
{
ctl.SelectNextControl(null, forward, tabStopOnly, nested, wrap);
}
}
else
{
ctl.Select();
}
}
public static object CallControlSelectNextControl(Control c, object[] obj)
{
return c.SelectNextControl((Control)obj[0], (bool)obj[1], (bool)obj[2],
(bool)obj[3], (bool)obj[4]);
}
public static object CallControlSelectNextControl(Control c, object[] obj)
{
return(c.SelectNextControl((Control)obj[0], (bool)obj[1], (bool)obj[2],
(bool)obj[3], (bool)obj[4]));
}
public static void textBox_KeyUp(Control control, object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
control.SelectNextControl(control, true, true, false, true);
}
}
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");
}
private static void SelectNextActiveControl(Control ctl, bool forward, bool tabStopOnly, bool nested, bool wrap)
{
ContainerControl control = ctl as ContainerControl;
if (control != null)
{
bool flag = true;
if (control.ParentInternal != null)
{
IContainerControl containerControlInternal = control.ParentInternal.GetContainerControlInternal();
if (containerControlInternal != null)
{
containerControlInternal.ActiveControl = control;
flag = containerControlInternal.ActiveControl == control;
}
}
if (flag)
{
ctl.SelectNextControl(null, forward, tabStopOnly, nested, wrap);
}
}
else
{
ctl.Select();
}
}
protected void CursorTop(Control C)
{
C.Focus();
C.SelectNextControl(C, true, true, true, true);
}
protected void CursorBottom(Control C)
{
C.Focus();
C.SelectNextControl(C, false, true, true, true);
}
public static bool FocusControl(Control c, bool forceDrawFocus)
{
//focus the control to display its focus rectangle (simulates the behavior of hitting the tab key).
if (forceDrawFocus)
ControlHelper.ShowFocus(c);
if (c.TabStop)
return c.Focus();
else
return c.SelectNextControl(null, true, true, true, true);
}
