how do I add a linkbutton to a gridview at runtime?

Question

I build a gridview at runtime that works great. Now, I have to add a linkbutton to the gridview at runtime (the linkbutton will allow display a modal popup for editing). The code below is not working. I use similar code to add an imagecontrol to the gridview and it works. Can anyone help?

// Add the edit link
TemplateField tfEdit = new TemplateField();
tfEdit.ShowHeader = false;
LinkButton lb = new LinkButton();
lb.ID = "lnkEditProduct";
lb.Text = "Edit Item";
lb.CommandArgument = "<%# Bind('itemID') %>";
lb.CommandName = "EditProduct";
lb.CausesValidation = false;
gvResults.Columns.Add(lb);

Thank you!

Kent · Answer

Thank you for the suggestion. However when I create my gridview I clear all columns in the gridview prior to adding. For example: gvResults.Columns.Clear; // Clear all columns from the gridview then I begin to add columns as needed bFld = new BoundField(); bFld.DataField = brandName; bFld.HeaderText = Brand; bFld.SortExpression = brandName; gvResults.Columns.Add(bFld); But this code does not work: LinkButton lb = new LinkButton(); lb.ID = lnkEditProduct; lb.Text = Edit Item; lb.CommandName = EditProduct; lb.CausesValidation = false; gvResults.Columns.Add(lb); // the error here is cannot convert webcontrols.linkbotton to webcontrol.datacontrolfield Thanks again!

Pramod Kumar Nandagiri · Answer

i want to add it

Niradhip Chakraborty · Answer

Hi Instead of adding a control dynamically during data-binding why don't you rather use a ButtonColumn in your GridView? This will create the buttons for you which will fire an OnRowCommand event when clicked allowing you to add your objects to your session list (the CommandName property of the EventArgs object of the event will contain the command of the button clicked and CommandArgument will contain the row index). http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd > http://www.w3.org/1999/xhtml  > Untitled Page /* Default.aspx.cs : Code-behind */ namespace ExpertsExchange { public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender EventArgs e) { if (!IsPostBack) { int[] dataSource = new int[] { 1 1 2 3 5 8 13 }; gridView1.DataSource = dataSource; gridView1.DataBind(); } } protected void gridView1_RowCommand(object sender GridViewCommandEventArgs e) { if (e.CommandName == AddToSessionList) { int rowIndex = Convert.ToInt32(e.CommandArgument); if (Session[SessionList] == null) Session[SessionList] = new List (); (Session[SessionList] as List ).Add(Convert.ToInt32(gridView1.Rows[rowIndex].Cells[1].Text)); } } } }