how to add user control multiple times in runtime on a webpage in ASP.NET

i'm having one user control in asp.net ,i just want to add the user control multiple times in a single web page in 开发者_运维百科runtime in a separate table. How to do this?

thanks

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Use the Page.LoadControl method to dynamically create a user control instance, and add it to a parent control like:

var uc = Page.LoadControl("~/uc.ascx");
this.Panel1.Controls.Add(uc);

Everytime the page posts back, you have to recreate the UC, fyi.

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Dim tbl As New Table
Dim tr1 As New TableRow
tbl.Rows.Add(tr1)
Dim td1 As New TableCell
tr1.Cells.Add(td1)
Dim ctl As New CustomControl
ctl.Text = "Toto"
td1.Controls.Add(ctl)

It is some old code, which was working in .net 1.1 but it should still work.

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So that you can reference each created control, you have to assign a unique id to each control:

  Dim tempUserControl As UserControl

    tempUserControl = Page.LoadControl("~/UserControl1.ascx")
    tempUserControl.ID = "uniquename1"
    testPanel.Controls.Add(tempUserControl)
    tempUserControl = Page.LoadControl("~/UserControl1.ascx")
    tempUserControl.ID = "uniquename2"
    testPanel.Controls.Add(tempUserControl)

Then you can access the control on a later postback:

    Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Dim tempUserControl As WebUserControl1
    tempUserControl = testPanel.FindControl("uniquename1")
End Sub