C# Control.Hide方法代码示例

 private void hideControl(Control ctrl, int time)
 {
     var T = new Timer();
     T.Interval = time * 1000;
     T.Tick += delegate { ctrl.Hide(); T.Stop(); };
     T.Start();
 }

        public void AddPopupPanel(Control _TargetControl, Control _PopupControl,  PopupEvent _PStyle, int _width, int _height)
        {
            PopupContent popup = new PopupContent();
            popup.TargetControl = _TargetControl;
            popup.PopupControl = _PopupControl;
            popup.PType = PopupType.Panel;
            popup.PStyle = _PStyle;
            popup.WStyle = WindowStyle.Default;
            popup.Width = _width;
            popup.Height = _height;
            popup.IsMCHide = true;
            popup.WindowTitle = "";

            _PopupControl.Tag = this;

            if (popup.PStyle == PopupEvent.Click)
            {
                _TargetControl.Click += new EventHandler(_TargetControl_Click);
            }
            else if (popup.PStyle == PopupEvent.Mouse)
            {
                _TargetControl.MouseEnter += new EventHandler(_TargetControl_MouseEnter);
                _TargetControl.MouseLeave += new EventHandler(_TargetControl_MouseLeave);
            }
            else
            {

            }

            popupList.Add(popup);

            _PopupControl.Hide();
        }

 public static void Hide(Control control)
 {
     if (control.InvokeRequired)
         control.Invoke(new ShowHideDelegate(Hide), control);
     else
         control.Hide();
 }

 private static void hider(Control frm)
 {
     frm.BeginInvoke((MethodInvoker)delegate
     {
         frm.Hide();
         load.Hide();
     });
 }

 /// <summary>
 /// Show or Hide control
 /// </summary>
 /// <param name="control1"></param>
 public void random1(Control control1)
 {
     if (brandom1==true)
     {
         control1.Show();
         brandom1 = false;
     }
     else
     {
         control1.Hide();
         brandom1 = true;
     }
 }

 /// <summary>
 /// Hides a control
 /// </summary>
 /// <param name="container">The control to hide</param>
 /// <param name="val">True to hide, false to show</param>
 public static void SafeHide(Control container, bool val)
 {
     if (container.InvokeRequired)
       {
     SafeHideCallback d = SafeHide;
     try
     {
       container.Invoke(d, new object[] { container, val });
     }
     catch (Exception) { }
       }
       else
       {
     if (val)
       container.Hide();
     else
       container.Show();
       }
 }

 private void changeControlShow(Control control, bool show)
 {
     if (control.InvokeRequired)
     {
         control.Invoke(controlChange, control, show);
     }
     else
     {
         if (show) control.Show();
         else control.Hide();
     }
 }

		public OpenTKGLContext( Control control, Control parent )
		{
			// replaces form's (parent) picturebox (control) by glControl
			this.glControl = new GLControl();
			this.glControl.VSync = false;
			this.glControl.Dock = control.Dock;
			this.glControl.BackColor = control.BackColor;
			this.glControl.Location = control.Location;
			this.glControl.Name = control.Name;
			this.glControl.Size = control.Size;
			this.glControl.TabIndex = control.TabIndex;
			this.glControl.Show();

			int count = 0;
			while ( this.glControl.Context == null && ++count < 10 )
			{
				System.Threading.Thread.Sleep( 10 );
			}
			if ( this.glControl.Context == null )
			{
				throw new Exception( "glControl.Context == null" );
			}

			var form = (Form)parent;
			form.Controls.Add( this.glControl );
			control.Hide();

			if (
				ResourceGroupManager.Instance.FindResourceFileInfo( ResourceGroupManager.DefaultResourceGroupName, "AxiomIcon.ico" )
					.Count > 0 )
			{
				using ( System.IO.Stream icon = ResourceGroupManager.Instance.OpenResource( "AxiomIcon.ico" ) )
				{
					if ( icon != null )
					{
						form.Icon = new System.Drawing.Icon( icon );
					}
				}
			}
			Initialized = 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");
//.........这里部分代码省略.........

        protected virtual void HandleShowingTabPage(TabPage page, Control c)
        {
            // First time this page has been displayed?
            if (!page.Shown)
            {
                // Special testing needed for Forms
                Form f = c as Form;

                // AutoScaling can cause the Control/Form to be
                if ((f != null) && (f.AutoScale))
                {
                    // Workaround the problem where a form has a defined 'AutoScaleBaseSize' value. The
                    // first time it is shown it calculates the size of each contained control and scales
                    // as needed. But if the contained control is Dock=DockStyle.Fill it scales up/down so
                    // its not actually filling the space! Get around by hiding and showing to force correct
                    // calculation.
                    c.Show();
                    c.Hide();
                }

                // Only need extra logic first time around
                page.Shown = true;
            }

            // Finally, show it!
            c.Show();

            // Restore focus to last know control to have it
            if (page.StartFocus != null)
                page.StartFocus.Focus();
            else
                c.Focus();
        }

 private void ZamienMiejscami(Control first, Control second)
 {
     if (first.Visible)
     {
         first.Hide();
         second.Show();
         second.Location = first.Location;
     }
     else
     {
         second.Hide();
         first.Show();
         first.Location = second.Location;
     }
 }

 void showComponent(Control c, bool show = false)
 {
     if (show == false)
     {
         c.Hide();
     }
     else
     {
         c.Show();
     }
 }

        private void HandleTransitionCompleted(object sender, TransitionCompletedEventArgs<StateID, EventID, EventArgs> e)
        {
            if (e.Error != null)
            {
                MessageBox.Show(e.Error.Message, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Stop);
                return;
            }
            switch (e.TargetStateID)
            {
                case StateID.Off:
                    currentPictureBox.Hide();
                    offPictureBox.Show();
                    currentPictureBox = offPictureBox;

                    currentUmlPictureBox.Hide();
                    umlOffPictureBox.Show();
                    currentUmlPictureBox = umlOffPictureBox;
                    break;

                case StateID.Red:
                    currentPictureBox.Hide();
                    redPictureBox.Show();
                    currentPictureBox = redPictureBox;

                    currentUmlPictureBox.Hide();
                    umlRedPictureBox.Show();
                    currentUmlPictureBox = umlRedPictureBox;
                    break;

                case StateID.Yellow:
                    currentPictureBox.Hide();
                    yellowPictureBox.Show();
                    currentPictureBox = yellowPictureBox;

                    currentUmlPictureBox.Hide();
                    umlYellowPictureBox.Show();
                    currentUmlPictureBox = umlYellowPictureBox;
                    break;

                case StateID.Green:
                    currentPictureBox.Hide();
                    greenPictureBox.Show();
                    currentPictureBox = greenPictureBox;

                    currentUmlPictureBox.Hide();
                    umlGreenPictureBox.Show();
                    currentUmlPictureBox = umlGreenPictureBox;
                    break;
            }
        }