How to insert logo in QR code using asp.net and C#

Question

QR Code Successfully generated but i need to create QR Code with logo .

protected void btnGenerate_Click(object sender, EventArgs e)
{
string code = txtName.Text;
if (!string.IsNullOrEmpty(code))
{
string[] commaSeparatedItems = txtName.Text.Split(',');
var Empcd = string.Concat("'", string.Join("','", commaSeparatedItems), "'");
foreach (var i in commaSeparatedItems) {
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeGenerator.QRCode qrCode = qrGenerator.CreateQrCode(i , QRCodeGenerator.ECCLevel.Q);
System.Web.UI.WebControls.Image imgBarCode = new System.Web.UI.WebControls.Image();
imgBarCode.Height = 150;
imgBarCode.Width = 150;
using (Bitmap bitMap = qrCode.GetGraphic(20))
{
using (MemoryStream ms = new MemoryStream())
{
bitMap.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
byte[] byteImage = ms.ToArray();
File.WriteAllBytes(Server.MapPath("QRCodes/" + code + ".png"), byteImage);
imgBarCode.ImageUrl = "data:image/png;base64," + Convert.ToBase64String(byteImage);
// imgBarCode.ImageUrl = "data:image/png;base64," + Convert.ToBase64String(byteImage);
}
plBarCode.Controls.Add(imgBarCode);
//BindGrid();
load();
}
}
}