Create Dynamic Controls

//pnlTransferRequestOutside is only control needed on aspx page

protected void Page_Load(object sender, EventArgs e)

{

//recreate Textboxes

int count = Convert.ToInt32(ViewState["Count"]) + 1;

for (int i = 1; i < count; i++) {

CreateTextBox(i.ToString());

}

}

protected void btnAddTransfer_Click(object sender, EventArgs e)

{

if (ViewState["Count"] != null)

ViewState["Count"] = Convert.ToInt32(ViewState["Count"].ToString()) + 1;

else

ViewState["Count"] = 1;

CreateTextBox(ViewState["Count"].ToString());

}

protected void CreateTextBox(string id)

{

//create new textbox

Label lbl = new Label();

lbl.Text = "ID:";

pnlTransferRequestOutside.Controls.Add(lbl);

TextBox tb = new TextBox();

tb.ID = "tb" + id;

pnlTransferRequestOutside.Controls.Add(tb);

tb.Text = Request.Form[tb.ClientID];

RangeValidator rv = new RangeValidator();

rv.ControlToValidate = tb.ID;

rv.ErrorMessage = "Numbers Only";

rv.Type = ValidationDataType.Integer;

rv.MaximumValue = "999999999";

rv.MinimumValue = "0";

rv.SetFocusOnError = true;

pnlTransferRequestOutside.Controls.Add(rv);

}