asp.net / c# / usercontrol

  LblItem.Text = LblItem.Text + "<input type=text name=" + "TxtItem_" + i + " class=TextBoxBgColor id=" + "TxtItem_" + i + " value=" + Request.Form["TxtItem_" + i.ToString()] + "><br />";

Instead of <input....>
I prefer using asp server input control like <asp:textbox>...</asp:textbox>

1. How can I do  that?
2. How can i code a way to tab horizontally?
now it is tabbed vertically.

Thanks

             

int TotalCount = int.Parse(Ddl_TotalItem.SelectedValue);
            for (int i = 0; i < TotalCount; i++)
            {
                LblItem.Text = LblItem.Text + "<input type=text name=" + "TxtItem_" + i + " class=TextBoxBgColor id=" + "TxtItem_" + i + " value=" + Request.Form["TxtItem_" + i.ToString()] + "><br />";
                LblDescription.Text = LblDescription.Text + "<input class=TextBoxBgColor name=" + "TxtDescription_" + i + " id=" + "TxtDescription_" + i + "><br />";
                LblTotalUnit.Text = LblTotalUnit.Text + "<input class=TextBoxBgColor name=" + "TxtTotalUnit_" + i + " id=" + "TxtTotalUnit_" + i + "><br />";
                LblUnitMeasure.Text = LblUnitMeasure.Text + "<input class=TextBoxBgColor name=" + "TxtUnitMeasure_" + i + " id=" + "TxtUnitMeasure_" + i + "><br />";
                LblQuantity.Text = LblQuantity.Text + "<input class=TextBoxBgColor name=" + "TxtQuantity_" + i + " id=" + " id=" + "TxtQuantity_" + i + "><br />";
                LblUnitPrice.Text = LblUnitPrice.Text + "<input class=TextBoxBgColor name=" + "TxtUnitPrice_" + i + " id=" + "TxtUnitPrice_" + i + "><br />";
                LblAmount.Text = LblAmount.Text + "<input class=TextBoxBgColor name=" + "TxtAmount_" + i + " id=" + " id=" + "TxtAmount_" + i + "><br />";
            }

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