Creating and deleting controls dynamically in WPF



Transfer from http://blog.csdn.net/wushang923/article/details/6688056

Dynamically creating controls
1. Container controls. Registername ("Name", control to register)//register control

2. Container controls. FindName ("Name") as control type//Find control and convert to corresponding type
Note: Only through controls. Name to set is not available through FindName to find the control, must register
dynamically deleting Controls
1. Container controls. Children.remove (Control)//Remove control

2. Container controls. Unregistername ("Name")//Cancel Registration

Other settings

1. Controls.                    SetValue (grid.rowproperty, 0); Set the number of rows for a control in the grid panel
Control.               SetValue (Grid.columnproperty, 1); Set the number of columns for a control in the grid panel

2.canvas.setleft ("Control name", 50); Set the horizontal axis of a control in the canvas panel
Canvas.settop ("Control name", 50); To set the ordinate of a control in the canvas panel

eg

Add a button to the canvas when you click the Button_add button;

Remove the newly added button when you click Button_remove;

Set: Canvas's name is canvas

Code:[CSharp] View Plain copy print? Private void button_add_click (object sender, system.windows.routedeventargs e)             {                button btn = new button ();                //btn. name =  "Newbutton";//The name set here is not found                 btn. width = 100;               btn. height= 50;               canvas. Children.add (BTN);               canvas. Registername ("Newbutton",  btn);//Register the name for later use            }               private void button_remove_click (Object  sender, routedeventargs e)            {                Button btn =  Canvas. FindName ("Newbutton")  as button;//find newly added buttons                 if  (Btn != null)//To determine whether to find, so as not to be delayed before the addition of                 {                    canvas. Children.remove (BTN);//Remove the corresponding button control                     canvas. Unregistername ("Newbutton");//also need to write off the name of the use, otherwise click Button_add will error                 }           }  

private void Button_add_click (object sender, System.Windows.RoutedEventArgs e)
        {
            Button btn = New button ();
            Btn. Name = "Newbutton";//The name set here is the btn that is not found
            . Width = +;
            Btn. height=;
            Canvas. Children.add (BTN);
            Canvas. Registername ("Newbutton", btn);//Register the name for later use
        }

        private void Button_remove_click (object sender, RoutedEventArgs e)
        {
            Button btn = Canvas. FindName ("Newbutton") as button;//finds the newly added button
            if (btn! = null)//Determines whether it is found, lest it be delayed before it is added
            {
                canvas. Children.remove (BTN);//Remove the corresponding button control
                canvas. Unregistername ("Newbutton");//also need to write off the name of the use, otherwise click Button_add will be error
            }
        }

Run it and you can.