Video Tag inside gridview control

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C#

ASP.NET

the below code is displaying video player in gridview but the url is incorrect because it is like this "~/Main/firstSession.Mp4";
please help.







frmMovieDetails.aspx(source Page)

<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
            AutoGenerateColumns="False" PageSize="5"
            style="margin-left: 186px; margin-top: 34px; color: #FFFF99;"
             >
            <Columns>
                <asp:BoundField DataField="trailorID" HeaderText="trailorID" />
                <asp:BoundField DataField="MovieId" HeaderText="MovieId" />
                <asp:ImageField DataImageUrlField="PhotoPath">
                </asp:ImageField>
                <asp:TemplateField>
                    <EditItemTemplate>
                        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
                    </EditItemTemplate>
                    <ItemTemplate>
                        <asp:LinkButton ID="lnkEdit" runat="server"
                            CommandArgument='<%# Eval("trailorID") %>' onclick="lnkEdit_Click"
                            ForeColor="Red">Edit</asp:LinkButton>
                        <br />
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Audio / Video">
    <ItemTemplate>
    <video width:" 1071px" height: "628px" autoplay controls>
         <source src="VideoPath">

         </video>
        </ItemTemplate>
    <ItemStyle VerticalAlign="Top" Width="300px" />
</asp:TemplateField>
            </Columns>
        </asp:GridView>

frmMovieDetails.aspx.cs(C# coding)(below function bringing VideoPath,PhotoPath with Reference to TheaterId )

public void GetDetails()
       {
           DataTable dt = obj.Get_MovieDetails_by_TheaterID(TheaterId);
           if (dt.Rows.Count > 0)
           {
               GridView1.DataSource = dt;
               GridView1.DataBind();
           }
           else
           {
               GridView1.EmptyDataText = "No Records Found";
               GridView1.DataSource = null;
               GridView1.DataBind();
           }
       }