Delete image from folder

Question

I am trying to perform curd operation ...everything is working fine but when I delete a entry from gridview ...it is being deleted successfully but it is not being deleted from folder ..where all the images are beingstored.Actually i dont have file name so how can i delete image from folder please suggest.

designer page:

<asp:GridView runat="server" ID="gvImage" AutoGenerateColumns="false" CssClass="mydatagrid"
OnRowCancelingEdit="gvImage_RowCancelingEdit" DataKeyNames="Id" CellPadding="4"
OnRowEditing="gvImage_RowEditing" OnRowUpdating="gvImage_RowUpdating" OnRowDeleting="gvImage_RowDeleting" HeaderStyle-BackColor="Black" HeaderStyle-ForeColor="White" >
<Columns>
<asp:TemplateField HeaderText="Id" HeaderStyle-Width="70px" >
<ItemTemplate>
<asp:Label ID="lblId" runat="server" Text='<%#Container.DataItemIndex+1%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Business Name" HeaderStyle-Width="200px">
<ItemTemplate>
<asp:Label ID="lblBname" runat="server" Text='<%# Eval("Bussiness_name") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_BName" runat="server" Text='<%# Eval("Bussiness_name") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="City" HeaderStyle-Width="200px">
<ItemTemplate>
<asp:Label ID="lblcity" runat="server" Text='<%# Eval("city") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_city" runat="server" Text='<%# Eval("city") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name" HeaderStyle-Width="200px">
<ItemTemplate>
<asp:Label ID="lblname" runat="server" Text='<%# Eval("name") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_name" runat="server" Text='<%# Eval("name") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Toll Free No." HeaderStyle-Width="200px">
<ItemTemplate>
<asp:Label ID="lbltoll" runat="server" Text='<%# Eval("toll_free") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_toll" runat="server" Text='<%# Eval("toll_free") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Website Link" HeaderStyle-Width="200px">
<ItemTemplate>
<asp:Label ID="lblweb" runat="server" Text='<%# Eval("website_link") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_link" runat="server" Text='<%# Eval("website_link") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Payment Mode" HeaderStyle-Width="200px">
<ItemTemplate>
<asp:Label ID="lblpay" runat="server" Text='<%# Eval("payment_mode") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_pay" runat="server" Text='<%# Eval("payment_mode") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Email" HeaderStyle-Width="200px">
<ItemTemplate>
<asp:Label ID="lblmail" runat="server" Text='<%# Eval("email") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_email" runat="server" Text='<%# Eval("email") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Image" HeaderStyle-Width="200px">
<ItemTemplate>
<asp:Image ID="Image1" runat="server" ImageUrl='<%# Eval("Images") %>'
Height="80px" Width="100px" />
</ItemTemplate>
<EditItemTemplate>
<asp:Image ID="img_user" runat="server" ImageUrl='<%# Eval("Images") %>'
Height="80px" Width="100px" /><br />
<asp:FileUpload ID="FileUpload1" runat="server" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="150px">
<ItemTemplate>
<asp:LinkButton ID="lbl_edit" runat="server" CommandName="Edit">Edit</asp:LinkButton>
<asp:LinkButton ID="lbl_delete" runat="server" CommandName="Delete">Delete</asp:LinkButton>
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton ID="lbl_update" runat="server" CommandName="Update">Update</asp:LinkButton>
<asp:LinkButton ID="lbl_cancle" runat="server" CommandName="Cancel">Cancel</asp:LinkButton>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>

code behind:

namespace Jobopedia
{
    public partial class SP_edit : System.Web.UI.Page
    {
        SqlConnection con;
        SqlDataAdapter da;
        DataSet ds;
        SqlCommand cmd;
        string constr = ConfigurationManager.ConnectionStrings["Q_SS_regnConnectionString1"].ConnectionString;
        string path = "~/uploads/";
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!this.IsPostBack)
            {
                //this.BindGrid();
                ImageData();
            }
        }
        protected void ImageData()
        {
            con = new SqlConnection(constr);
            con.Open();
            da = new SqlDataAdapter("select * from Q_SP_Afterlogin", con);
            ds = new DataSet();
            da.Fill(ds);
            gvImage.DataSource = ds;
            gvImage.DataBind();
        }

        protected void gvImage_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
        {
            gvImage.EditIndex = -1;
            ImageData();
        }

        protected void gvImage_RowEditing(object sender, GridViewEditEventArgs e)
        {
            gvImage.EditIndex = e.NewEditIndex;
            ImageData();
        }

        protected void gvImage_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            //find image id of edit row
            string Id = gvImage.DataKeys[e.RowIndex].Value.ToString();
            // find values for update
            TextBox txt_BName = (TextBox)gvImage.Rows[e.RowIndex].FindControl("txt_BName");
            TextBox txt_city = (TextBox)gvImage.Rows[e.RowIndex].FindControl("txt_city");
            TextBox txt_name = (TextBox)gvImage.Rows[e.RowIndex].FindControl("txt_name");
            TextBox txt_toll = (TextBox)gvImage.Rows[e.RowIndex].FindControl("txt_toll");
            TextBox txt_link = (TextBox)gvImage.Rows[e.RowIndex].FindControl("txt_link");
            TextBox txt_pay = (TextBox)gvImage.Rows[e.RowIndex].FindControl("txt_pay");
            TextBox txt_email = (TextBox)gvImage.Rows[e.RowIndex].FindControl("txt_email");
            FileUpload FileUpload1 = (FileUpload)gvImage.Rows[e.RowIndex].FindControl("FileUpload1");
            con = new SqlConnection(constr);

            string path = "~/uploads/";
            if (FileUpload1.HasFile)
            {
                path += FileUpload1.FileName;
                //save image in folder
                FileUpload1.SaveAs(MapPath(path));
            }
            else
            {
                // use previous user image if new image is not changed
                Image img = (Image)gvImage.Rows[e.RowIndex].FindControl("img_user");
                path = img.ImageUrl;
            }
            SqlCommand cmd = new SqlCommand("update Q_SP_Afterlogin set Bussiness_name='" + txt_BName.Text + "',city='" + txt_city.Text + "',name='" + txt_name.Text + "',toll_free='" + txt_toll.Text + "',website_link='" + txt_link.Text + "',payment_mode='" + txt_pay.Text + "',email='" + txt_email.Text + "',Images='" + path + "'  where Id=" + Id + "", con);
            con.Open();
            cmd.ExecuteNonQuery();
            con.Close();
            gvImage.EditIndex = -1;
            ImageData();
        }

        protected void gvImage_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            GridViewRow row = (GridViewRow)gvImage.Rows[e.RowIndex];
            Label Id = (Label)row.FindControl("lblId");
            Label Bussiness_name = (Label)row.FindControl("lblBname");
            Label city = (Label)row.FindControl("lblcity");
            Label name = (Label)row.FindControl("lblname");
            Label toll_free = (Label)row.FindControl("lbltoll");
            Label website_link = (Label)row.FindControl("lblweb");
            Label payment_mode = (Label)row.FindControl("lblpay");
            Label email = (Label)row.FindControl("lblmail");
            //Image Images = (Image)row.FindControl("Image1");
            con = new SqlConnection(constr);
            con.Open();
            SqlCommand cmd = new SqlCommand("delete FROM Q_SP_Afterlogin where Id='" + Convert.ToInt32(gvImage.DataKeys[e.RowIndex].Value.ToString()) + "'", con);
            cmd.ExecuteNonQuery();
            con.Close();
            ImageDeleteFromFolder(path);    // path is folder path
            ImageData();
        }
        protected void ImageDeleteFromFolder(string Images)  /* In Images path is being stored  */
        {
            string file_name = Images;
            string path = Server.MapPath("~/uploads/");
            string filePath = path + file_name;
            FileInfo file = new FileInfo(filePath);
            if (file.Exists) //check file exsit or not
            {
                file.Delete();
                lblResult.Text = " file deleted successfully";
                lblResult.ForeColor = System.Drawing.Color.Green;
            }
            else
            {
                lblResult.Text = " This file does not exists ";
                lblResult.ForeColor = System.Drawing.Color.Red;
            }

        }


    }
}