asp.net dynamic Add multiple User controls _ Practical Tips

User Control Code:
Code WebControls

Copy Code code as follows:

Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Web;
Using System.Web.UI;
Using System.Web.UI.WebControls;
Namespace Xuyuanwang.mycontrol
{
public partial class Lablexuyuan:System.Web.UI.UserControl
{
String a = "OK";
public string A
{
Set
{
A = value;
}
Get
{
return A;
}
}
protected void Page_Load (object sender, EventArgs e)
{
Label1.Text = A;
}
}
}

ASPX page code:
Code

Copy Code code as follows:

Public partial class WebForm1:System.Web.UI.Page
{
protected voi d Page_Load (object sender, EventArgs e)
{
}
protected void Button1_Click (object sender, EventArgs e) br>{
Mycontrol.lablexuyuan ctl = (Mycontrol.lablexuyuan) page.loadcontrol ("Mycontrol/lablexuyuan.ascx");
ctl. A = this. TextBox1.Text;
ArrayList list = Addl (CTL);
for (int i = 0; i < list. Count; i++)
{
Mycontrol.lablexuyuan ctl2 = (Mycontrol.lablexuyuan) list[i];
this. UPDATEPANEL1.CONTENTTEMPLATECONTAINER.CONTROLS.ADD (CTL2);
}
}
Private System.Collections.ArrayList Addl (Mycontrol.lablexuyuan l)
{
System.Collections.Ar Raylist list = null;
if (session["a"]!= null)
{
List = (ArrayList) session["a"];
}
Else
{
List = new ArrayList ();
}
List. ADD (l);
session["a"] = list;
return list;
}