Hi Osman,
I have checked below article everything working fine.
HTML
<form id="form1" runat="server">
<asp:TextBox ID="txtCode" runat="server" TextMode="MultiLine"></asp:TextBox>
<asp:Button ID="btnGenerate" runat="server" Text="Generate" OnClick="btnGenerate_Click" />
<hr />
<asp:PlaceHolder ID="plBarCode" runat="server" />
</form>
C#
protected void btnGenerate_Click(object sender, EventArgs e)
{
string code = txtCode.Text;
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeGenerator.QRCode qrCode = qrGenerator.CreateQrCode(code, 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();
imgBarCode.ImageUrl = "data:image/png;base64," + Convert.ToBase64String(byteImage);
}
plBarCode.Controls.Add(imgBarCode);
}
}
Vb.net
Imports QRCoder
Imports System.IO
Imports System.Drawing
Partial Class VB
Inherits System.Web.UI.Page
Protected Sub btnGenerate_Click(sender As Object, e As EventArgs)
Dim code As String = txtCode.Text
Dim qrGenerator As New QRCodeGenerator()
Dim qrCode As QRCodeGenerator.QRCode = qrGenerator.CreateQrCode(code, QRCodeGenerator.ECCLevel.Q)
Dim imgBarCode As New System.Web.UI.WebControls.Image()
imgBarCode.Height = 150
imgBarCode.Width = 150
Using bitMap As Bitmap = qrCode.GetGraphic(20)
Using ms As New MemoryStream()
bitMap.Save(ms, System.Drawing.Imaging.ImageFormat.Png)
Dim byteImage As Byte() = ms.ToArray()
imgBarCode.ImageUrl = "data:image/png;base64," + Convert.ToBase64String(byteImage)
End Using
plBarCode.Controls.Add(imgBarCode)
End Using
End Sub
End Class
Screenshot
