How to add specific number of rows to gridview depending on textbox

<div>
            <table style="width:40%;">
                <tr>
                    <td>
                        <asp:TextBox runat="server" ID="txtRowCount"></asp:TextBox>
                    </td>
                    <td >
                        <asp:Button ID="btnGenerate" runat="server" Text="Generate Rows" OnClick="btnGenerate_Click" />
                    </td>
                </tr>
                
                <tr>
                    <td colspan="2">
                        <br />
                        <br />

                        <asp:GridView runat="server" ID="gvEmp" AutoGenerateColumns="false">
                            <Columns>
                                <asp:TemplateField HeaderText="Title">
                                    <ItemTemplate>
                                        <asp:TextBox runat="server" ID="txt" Text='<%# Bind("Title") %>'></asp:TextBox>
                                    </ItemTemplate>
                                </asp:TemplateField>
                            </Columns>
                        </asp:GridView>
                    </td>
                </tr>
            </table>

        </div>

protected void Page_Load(object sender, EventArgs e)
       {
           if (!IsPostBack)
               GenerateRows(2);
       }

       protected void btnGenerate_Click(object sender, EventArgs e)
       {
           GenerateRows(Convert.ToInt32(txtRowCount.Text));
       }
     void GenerateRows( int intRowCout)
       {

           DataRow workRow;
           DataTable workTable = new DataTable();
           workTable.Columns.Add("Title", typeof(System.String));
           for (int i = 1; i <= intRowCout; i++)
           {
               workRow = workTable.NewRow();
               workRow["Title"] = string.Empty;
               workTable.Rows.Add(workRow);
           }

           gvEmp.DataSource = workTable;
           gvEmp.DataBind();
       }