OnItemDataBound="Repeater1_ItemDataBound"

protected void Repeater1_ItemDataBound(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e)
    {

if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            DataRowView rowv = (DataRowView)e.Item.DataItem;
            string userid = rowv["userid"].ToString();

if (userid != id.ToString())
            {
                ((Panel)e.Item.FindControl("plItem")).Visible = true;
                ((Panel)e.Item.FindControl("plEdit")).Visible = false;
            }
            else
            {
                ((Panel)e.Item.FindControl("plItem")).Visible = false;
                ((Panel)e.Item.FindControl("plEdit")).Visible = true;
            }

}
    }

protected void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs e)
    {
        if (e.CommandName == "Edit")
        {
            id = int.Parse(e.CommandArgument.ToString());
        }
        else if (e.CommandName == "Cancel")
        {
            id = -1;
        }
        else if (e.CommandName == "Update")
        {
            //Update.

string username = ((TextBox)this.Repeater1.Items[e.Item.ItemIndex].FindControl("UserName")).Text.Trim();

this.Page.ClientScript.RegisterStartupScript(this.Page.GetType(), "key", "alert('更新ID：" + e.CommandArgument + "；页面值：姓名=" + username + "');", true);
        }
        else if (e.CommandName == "Delete")
        {
            //Delete.            
            this.Page.ClientScript.RegisterStartupScript(this.Page.GetType(), "key", "alert('删除ID：" + e.CommandArgument + "');", true);
        }

BindGrid();
    }