protected void Importbtn_Click(object sender, EventArgs e)
    {
        if (VcardUploader.HasFile)
        {
            if ((VcardUploader.FileName.ToLower().EndsWith(".vcf")) || VcardUploader.FileName.ToLower().EndsWith(".csv"))
            {
                uploaderError.Visible = false;
                VCardCSVParser vcfparser = new VCardCSVParser();
                StreamReader streamReader = new StreamReader(VcardUploader.FileContent);
                if (VcardUploader.FileName.ToLower().EndsWith(".vcf"))
                    GridView1.DataSource = vcfparser.GetRecepientFromVCards(streamReader.ReadToEnd());
                else
                    GridView1.DataSource = vcfparser.GetRecepientFromCSV(streamReader.ReadToEnd(), ",");
                if (((IList)GridView1.DataSource).Count == 0)
                    ShowUploaderError("Can not find any Contact");
                else
                    GridView1.DataBind();

                streamReader.Close();
            }
            else
                ShowUploaderError("You must upload vcf  or scv File");

        }
        else
            ShowUploaderError("Choose file to be imported");
    }
    protected void Importbtn_Click(object sender, EventArgs e)
    {
        if (VcardUploader.HasFile)
        {
            if ((VcardUploader.FileName.ToLower().EndsWith(".vcf")) || VcardUploader.FileName.ToLower().EndsWith(".csv"))
            {
                uploaderError.Visible = false;
                VCardCSVParser vcfparser    = new VCardCSVParser();
                StreamReader   streamReader = new StreamReader(VcardUploader.FileContent);
                if (VcardUploader.FileName.ToLower().EndsWith(".vcf"))
                {
                    GridView1.DataSource = vcfparser.GetRecepientFromVCards(streamReader.ReadToEnd());
                }
                else
                {
                    GridView1.DataSource = vcfparser.GetRecepientFromCSV(streamReader.ReadToEnd(), ",");
                }
                if (((IList)GridView1.DataSource).Count == 0)
                {
                    ShowUploaderError("Can not find any Contact");
                }
                else
                {
                    GridView1.DataBind();
                }

                streamReader.Close();
            }
            else
            {
                ShowUploaderError("You must upload vcf  or scv File");
            }
        }
        else
        {
            ShowUploaderError("Choose file to be imported");
        }
    }