Dynamically Change custom Components!

Dynamic 1, put a container on the leaf placeholder

2, can dynamically load in the container of the required custom components, or user components

Example:

Now load a textbox in the container and return it to the button.

The code is as follows:

protected System.Web.UI.WebControls.PlaceHolder PlaceHolder1;
protected System.Web.UI.WebControls.Button Button1;

private void Page_Load (object sender, System.EventArgs e)
{
if (! IsPostBack)
{
TextBox t = new TextBox ();
T.text = "First load";
PLACEHOLDER1.CONTROLS.ADD (t);
}
}
private void Button1_Click (object sender, System.EventArgs e)
{
PlaceHolder1.Controls.Clear ();
Button B = New button ();
B.text = "Heart Rain Building";
PLACEHOLDER1.CONTROLS.ADD (b);
}

Run effect: Put a TextBox for the first time



Click the button to change