Display Pdf file in iFrame inside GridView using C# in ASP.Net

kats9993 says:

<asp:GridView ID="GridView1" style="margin:auto" runat="server"

        AutoGenerateColumns="False" OnRowDataBound="GridView1_RowDataBound"

        BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"  Width="690px"

        CellPadding="4" ForeColor="Black" GridLines="Horizontal">

    <Columns>

        <asp:BoundField DataField="id" HeaderText="Diamonds Pdf" />

       

        <asp:TemplateField ItemStyle-HorizontalAlign="Center">

            <ItemTemplate>

                <asp:Literal ID="ltEmbed" runat="server" />

                

            </ItemTemplate>

</ asp:GridView>

 replace above code with below

<div>
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" OnRowDataBound="GridView1_RowDataBound">
        <Columns>
            <asp:BoundField DataField="Id" HeaderText="File Id" />
            <asp:BoundField DataField="Name" HeaderText="File Name" />
            <asp:TemplateField ItemStyle-HorizontalAlign="Center">
                <ItemTemplate>
                    <iframe id="ifDisplayPDF" runat="server"></iframe>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
</div>

kats9993 says:

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

    {

        if (e.Row.RowType == DataControlRowType.DataRow)

        {

            string embed = "<object data=\"{0}{1}\" type=\"application/pdf\" width=\"500px\" height=\"500px\">";

            embed += "If you are unable to view file, you can download from <a href = \"{0}{1}&download=1\">here</a>";

            embed += " or download <a target = \"_blank\" href = \"http://get.adobe.com/reader/\">Adobe PDF Reader</a> to view the file.";

            embed += "</object>";

            int Data = Convert.ToInt32(e.Row.Cells[0].Text);

            (e.Row.FindControl("ltEmbed") as Literal).Text = string.Format(embed, ResolveUrl("~/File.ashx?Id="), Data);

            e.Row.Cells[0].Visible = false;

        }

    }

 and replace above code with below

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        int Data = Convert.ToInt32(e.Row.Cells[0].Text);
        (e.Row.FindControl("ifDisplayPDF") as HtmlControl).Attributes["src"] = ResolveUrl("~/File.ashx?Id=" + Data);
        e.Row.Cells[0].Visible = false;
    }
}