jQuery Quick search plugin not working for first column TextBox in GridView ASP.Net

Hi,

I implemented the quick search gridview from your site:

Quick Search

But it is not working for the first column. It is working for the Second and third column.

Please see my code as I implemented

 protected void grdUser_DataBound(object sender, EventArgs e)
        {
            GridViewRow row = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Normal);
            for (int i = 0; i < grdUser.Columns.Count; i++)
            {
                TableHeaderCell cell = new TableHeaderCell();
                TextBox txtSearch = new TextBox();
                txtSearch.Attributes["placeholder"] = grdUser.Columns[i].HeaderText;
                txtSearch.CssClass = "form-control HaydaBre";

                if (grdUser.Columns[i].HeaderText != "Action" && grdUser.Columns[i].HeaderText != "" && grdUser.Columns[i].HeaderText != "Select") // && grdUser.Columns[i].HeaderText != "" && grdUser.Columns[i].HeaderText != null && grdUser.Columns[i].HeaderText != "Select")
                {
                    cell.Controls.Add(txtSearch);
                }
                row.Controls.Add(cell);
            }
            grdUser.HeaderRow.Parent.Controls.AddAt(1, row);
        }

I haved added the necessary plugins from your site. Do let me know what i have to make the changes.