Question

Any help would be appreciated —

here is my aspx code –

<div id="div_Detail" class="div_det" runat="server" />

and in my code behind –

protected void Page_Load(object sender, EventArgs e) {
  LoadDetail();
}

private void LoadDetail() {
    HtmlTable tbl = new HtmlTable();
    HtmlTableRow row = new HtmlTableRow();
    HtmlTableCell cell = new HtmlTableCell();

    Button bUpdate = new Button();
    bUpdate.Text = "Update";
    bUpdate.Click += this.Update_Click;

    cell.Controls.Add(bUpdate);
    row.Cells.Add(cell);
    tbl.Rows.Add(row);
    div_Detail.Controls.Add(tbl);
}

private void Update_Click(object sender, EventArgs e) {
    //Do something
}

I see the button on the page with the correct text. But on clicking that button, Update_Click never gets called.

Am I missing something?

Answer 1

Try giving the button an id. The .NET engine needs IDs on controls during postback to associate the control with a given event delegate.

Edit:

This code works fine:

 protected void Page_Load(object sender, EventArgs e) {
        LoadDetail();
    }

    private void LoadDetail() {
        HtmlTable tbl = new HtmlTable();
        HtmlTableRow row = new HtmlTableRow();
        HtmlTableCell cell = new HtmlTableCell();

        Button bUpdate = new Button();
        bUpdate.Text = "Update";
        bUpdate.Click += this.Update_Click;
        bUpdate.ID = "btnID";

        cell.Controls.Add(bUpdate);
        row.Cells.Add(cell);
        tbl.Rows.Add(row);
        div_Detail.Controls.Add(tbl);
    }

    private void Update_Click(object sender, EventArgs e) {
        //Do something 
    }