Display images from folder in GridView based on Employee Id in ASP.Net

Here i am having pictures of emplyees. I have added these pictures in Folder. folders is in my project directory. pictures name are same as EmployeeId like

1.jpg
2.jpg
..
..
12.jpg

OnRowDataBound i am binding the images to Image control.

HTML:

<form id="form1" runat="server">
    <div>
        <asp:GridView ID="GridView1" runat="server" OnRowDataBound="GridView1_OnDataBound" AutoGenerateColumns="false">
            <Columns>
                <asp:BoundField DataField="EmployeeID" HeaderText="EmployeeID" />
                <asp:BoundField DataField="FirstName" HeaderText="FirstName" />
                <asp:BoundField DataField="Country" HeaderText="Country" />
                <asp:BoundField DataField="Title" HeaderText="Title" />
                <asp:TemplateField HeaderText="Image">
                    <ItemTemplate>
                        <asp:Image ID="imgEmployeeImage" runat="server" Width="80" Height="80" />
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>
    </div>
    </form>

C#:

protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            this.GetData();
        }
    }

    private void GetData()
    {
        string constr = ConfigurationManager.ConnectionStrings["ConString"].ConnectionString;
        using (SqlConnection con = new SqlConnection(constr))
        {
            using (SqlCommand cmd = new SqlCommand("SELECT EmployeeID,FirstName,LastName,Country,Title FROM Employees", con))
            {
                using (SqlDataAdapter da = new SqlDataAdapter(cmd))
                {
                    DataSet ds = new DataSet();
                    da.Fill(ds);
                    if (ds.Tables[0].Rows.Count > 0)
                    {
                        this.GridView1.DataSource = ds;
                        this.GridView1.DataBind();
                    }
                }
            }
        }
    }

    protected void GridView1_OnDataBound(object sender, GridViewRowEventArgs e)
    {
        string id;
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            id = e.Row.Cells[0].Text;
            (e.Row.Cells[4].FindControl("imgEmployeeImage") as Image).ImageUrl = "photos/" + id + ".jpg";
        }
    }

This is my Project directory:

Output:

Thank You.