Opening a PDF File in Page from Asp.net page

private void ReadPdfFile()

    {

        Response.Clear();               Response.AddHeader("Content-Disposition", "inline;
        filename=document.pdf");

        Response.ContentType ="application/pdf";

        Response.TransmitFile(@"C:\FirstPost.pdf");

        Response.Flush();

        Response.End();

        return;

    }