internal void ChildControlRemoved(Control control)
{
ContainerControl top_container = FindForm();
if (top_container == null)
{
top_container = this;
}
// Remove controls -as well as any sub control- that was in the pending validation chain
ArrayList pending_validation_chain = top_container.pending_validation_chain;
if (pending_validation_chain != null)
{
RemoveChildrenFromValidation(pending_validation_chain, control);
if (pending_validation_chain.Count == 0)
{
top_container.pending_validation_chain = null;
}
}
if (control == active_control || control.Contains(active_control))
{
SelectNextControl(this, true, true, true, true);
if (control == active_control || control.Contains(active_control))
{
active_control = null;
}
}
}
/// <devdoc>
/// Cleans up form state after a control has been removed.
/// Package scope for Control
/// </devdoc>
/// <internalonly/>
internal virtual void AfterControlRemoved(Control control)
{
if (control == activeControl || control.Contains(activeControl))
{
// REGISB: this branch never seems to be reached.
// leaving it intact to be on the safe side
bool selected = SelectNextControl(control, true, true, true, true);
if (selected)
{
FocusActiveControlInternal();
}
}
else if (activeControl == null && ParentInternal != null)
{
// The last control of an active container was removed. Focus needs to be given to the next
// control in the Form.
ContainerControl cc = ParentInternal.GetContainerControlInternal() as ContainerControl;
if (cc != null && cc.ActiveControl == this)
{
Form f = FindFormInternal();
if (f != null)
{
f.SelectNextControl(this, true, true, true, true);
}
}
}
if (control == unvalidatedControl || control.Contains(unvalidatedControl))
{
unvalidatedControl = null;
}
}
protected override void OnControlRemoved(ControlEventArgs e)
{
Control c = e.Control;
if (c == activeControl || c.Contains(activeControl))
{
SetActiveControlInternal(null);
}
if (c == unvalidatedControl || c.Contains(unvalidatedControl))
{
unvalidatedControl = null;
}
base.OnControlRemoved(e);
}
protected override void OnControlRemoved(ControlEventArgs e)
{
Control control = e.Control;
// Make sure the unvalidated control and active control are cleaned up.
if (control == unvalidatedControl || control.Contains(unvalidatedControl))
{
unvalidatedControl = null;
}
if (control == activeControl || control.Contains(activeControl))
{
ActiveControl = null;
}
base.OnControlRemoved(e);
}
public static void displayFormOnPanel(Control.ControlCollection control, Form newForm)
{
bool isExist = control.Contains(newForm);
if (isExist == false)
{
newForm.TopLevel = false; //设置为非顶级窗体
newForm.FormBorderStyle = FormBorderStyle.None; //设置窗体为非边框样式
newForm.Dock = System.Windows.Forms.DockStyle.Fill; //设置样式是否填充整个PANEL
control.Add(newForm); //添加窗体
newForm.Show();
}
newForm.BringToFront();
}
// Brubbel
internal virtual void AfterControlRemoved(Control control)
{
// Select next control, if control was active and removed.
if (control == activeControl || control.Contains(activeControl))
{
if (base.SelectNextControl(control, true, true, true, true))
{
this.SetFocus(activeControl);
}
else
{
this.SetActiveControl(null);
}
}
else if ((this.activeControl == null) && (this.Parent != null))
{
ContainerControl container = Parent.GetContainerControl() as ContainerControl;
if (null != container && container.ActiveControl == this)
{
Form form = base.FindForm();
if (null != form)
{
form.SelectNextControl(this, true, true, true, true);
}
}
}
else
{
}
// Make sure the unvalidated control and active control are cleaned up.
if (control == unvalidatedControl || control.Contains(unvalidatedControl))
{
unvalidatedControl = null;
}
}
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");
}
internal void ChildControlRemoved (Control control)
{
ContainerControl top_container = FindForm ();
if (top_container == null)
top_container = this;
// Remove controls -as well as any sub control- that was in the pending validation chain
ArrayList pending_validation_chain = top_container.pending_validation_chain;
if (pending_validation_chain != null) {
RemoveChildrenFromValidation (pending_validation_chain, control);
if (pending_validation_chain.Count == 0)
top_container.pending_validation_chain = null;
}
if (control == active_control || control.Contains (active_control)) {
SelectNextControl (this, true, true, true, true);
if (control == active_control || control.Contains (active_control)) {
active_control = null;
}
}
}
public virtual bool CanParent(Control control)
{
return !control.Contains(this.Control);
}
// Brubbel
internal virtual void AfterControlRemoved(Control control)
{
// Select next control, if control was active and removed.
if (control == activeControl || control.Contains(activeControl))
{
if( base.SelectNextControl( control, true, true, true, true ) ) {
this.SetFocus( activeControl );
}
else {
this.SetActiveControl( null );
}
}
else if( (this.activeControl == null) && (this.Parent != null) ) {
ContainerControl container = Parent.GetContainerControl() as ContainerControl;
if( null != container && container.ActiveControl == this ) {
Form form = base.FindForm();
if( null != form ) {
form.SelectNextControl( this, true, true, true, true );
}
}
}
else {
}
// Make sure the unvalidated control and active control are cleaned up.
if (control == unvalidatedControl || control.Contains(unvalidatedControl))
{
unvalidatedControl = null;
}
}
public static object CallControlContains(Control c, object[] obj)
{
return(c.Contains((Control)(obj[0])));
}
static void AddtoPanel(Control pControlToAdd, Control pContainerControl)
{
if (!pContainerControl.Contains(pControlToAdd))
{
pContainerControl.Controls.Add(pControlToAdd);
pControlToAdd.Dock = DockStyle.Fill;
//pContainerControl.Controls.Clear();
}
pControlToAdd.Dock = DockStyle.Fill;
pControlToAdd.BringToFront();
}
public override bool CanParent(Control control)
{
if(control.Contains(this.Control))
return false;
if(this.IsDockableWindow && !(control is PanelDockContainer))
return false;
return base.CanParent(control);
}
// If the control is not already parented return true
//
public virtual bool CanParent (Control control)
{
if (control != null)
return !control.Contains (this.Control);
return false;
}
public void RelationTest() {
Control c1;
Control c2;
c1 = new Control();
c2 = new Control();
Assert.AreEqual(true , c1.Visible , "Rel1");
Assert.AreEqual(false, c1.Contains(c2) , "Rel2");
Assert.AreEqual("System.Windows.Forms.Control", c1.ToString() , "Rel3");
c1.Controls.Add(c2);
Assert.AreEqual(true , c2.Visible , "Rel4");
Assert.AreEqual(true, c1.Contains(c2) , "Rel5");
c1.Anchor = AnchorStyles.Top;
c1.SuspendLayout ();
c1.Anchor = AnchorStyles.Left ;
c1.ResumeLayout ();
Assert.AreEqual(AnchorStyles.Left , c1.Anchor, "Rel6");
c1.SetBounds(10, 20, 30, 40) ;
Assert.AreEqual(new Rectangle(10, 20, 30, 40), c1.Bounds, "Rel7");
Assert.AreEqual(c1, c2.Parent, "Rel8");
}
/// <devdoc>
/// Cleans up form state after a control has been removed.
/// Package scope for Control
/// </devdoc>
/// <internalonly/>
internal virtual void AfterControlRemoved(Control control, Control oldParent) {
ContainerControl cc;
Debug.Assert(control != null);
Debug.WriteLineIf(Control.FocusTracing.TraceVerbose, "ContainerControl::AfterControlRemoved(" + control.Name + ") - " + this.Name);
if (control == activeControl || control.Contains(activeControl)) {
bool selected;
// SECREVIEW : Note that a function overriding "protected virtual void Control::Select(bool directed, bool forward)"
// called by SelectNextControl will be able to set the focus to any control.
// This is also enabled by the ModifyFocus.Assert inside Control::SelectNextIfFocused.
IntSecurity.ModifyFocus.Assert ();
try
{
selected = SelectNextControl(control, true, true, true, true);
}
finally
{
CodeAccessPermission.RevertAssert ();
}
if (selected && this.activeControl != control)
{
FocusActiveControlInternal();
}
else
{
SetActiveControlInternal(null);
}
}
else if (activeControl == null && ParentInternal != null)
{
// The last control of an active container was removed. Focus needs to be given to the next
// control in the Form.
cc = ParentInternal.GetContainerControlInternal() as ContainerControl;
if (cc != null && cc.ActiveControl == this)
{
Form f = FindFormInternal();
if (f != null)
{
// SECREVIEW : Same comment as above.
IntSecurity.ModifyFocus.Assert ();
try
{
f.SelectNextControl(this, true, true, true, true);
}
finally
{
CodeAccessPermission.RevertAssert();
}
}
}
}
// VSWhidbey#262686: Two controls in UserControls that don't take focus via UI can have bad behavior if ...
// VSWhidbey#537131:
// When a control is removed from a container, not only do we need to clear the unvalidatedControl of that
// container potentially, but the unvalidatedControl of all its container parents, up the chain, needs to
// now point to the old parent of the disappearing control.
cc = this;
while (cc != null) {
Control parent = cc.ParentInternal;
if (parent == null) {
break;
}
else {
cc = parent.GetContainerControlInternal() as ContainerControl;
}
if (cc != null &&
cc.unvalidatedControl != null &&
(cc.unvalidatedControl == control || control.Contains(cc.unvalidatedControl)))
{
cc.unvalidatedControl = oldParent;
}
}
if (control == unvalidatedControl || control.Contains(unvalidatedControl)) {
unvalidatedControl = null;
}
}
public void ContainsTest ()
{
Control t = new Control ();
Control s = new Control ();
t.Controls.Add (s);
Assert.AreEqual (true, t.Contains (s), "Con1");
Assert.AreEqual (false, s.Contains (t), "Con2");
Assert.AreEqual (false, s.Contains (null), "Con3");
Assert.AreEqual (false, t.Contains (new Control ()), "Con4");
}
public static object CallControlContains(Control c, object[] obj)
{
return c.Contains((Control)(obj[0]));
}
internal virtual void AfterControlRemoved(Control control, Control oldParent)
{
ContainerControl containerControlInternal;
if ((control == this.activeControl) || control.Contains(this.activeControl))
{
bool flag;
System.Windows.Forms.IntSecurity.ModifyFocus.Assert();
try
{
flag = base.SelectNextControl(control, true, true, true, true);
}
finally
{
CodeAccessPermission.RevertAssert();
}
if (flag)
{
this.FocusActiveControlInternal();
}
else
{
this.SetActiveControlInternal(null);
}
}
else if ((this.activeControl == null) && (this.ParentInternal != null))
{
containerControlInternal = this.ParentInternal.GetContainerControlInternal() as ContainerControl;
if ((containerControlInternal != null) && (containerControlInternal.ActiveControl == this))
{
Form form = base.FindFormInternal();
if (form != null)
{
System.Windows.Forms.IntSecurity.ModifyFocus.Assert();
try
{
form.SelectNextControl(this, true, true, true, true);
}
finally
{
CodeAccessPermission.RevertAssert();
}
}
}
}
containerControlInternal = this;
while (containerControlInternal != null)
{
Control parentInternal = containerControlInternal.ParentInternal;
if (parentInternal == null)
{
break;
}
containerControlInternal = parentInternal.GetContainerControlInternal() as ContainerControl;
if (((containerControlInternal != null) && (containerControlInternal.unvalidatedControl != null)) && ((containerControlInternal.unvalidatedControl == control) || control.Contains(containerControlInternal.unvalidatedControl)))
{
containerControlInternal.unvalidatedControl = oldParent;
}
}
if ((control == this.unvalidatedControl) || control.Contains(this.unvalidatedControl))
{
this.unvalidatedControl = null;
}
}