I think the radbarcode control is generating the wrong barcode. Here is my code;

            RadBarcode theControl = new RadBarcode();
            BarcodeType theType = BarcodeType.PDF417;
            theControl.Type = theType;
            theControl.PDF417Settings.AspectRatio = 10;
            theControl.PDF417Settings.ErrorCorrectionLevel = 0;
            theControl.PDF417Settings.EncodingMode = Telerik.Web.UI.Barcode.PDF417ClassLibrary.EncodingMode.Text;
            theControl.Text = clsJobBarcode.CreateNewJobString(theClass.Job, theClass.Release, theClass.Lot);
            System.Drawing.Image theImage = theControl.GetImage();
            theImage.Save(thePath + "barcode.png", System.Drawing.Imaging.ImageFormat.Png);
The file barcode.png is the output of this code. The input into the barcode is:
theLot
"20338B"
theRelease
"R320"
theJob
"A2552013"
theControl.Text
"A2552013|R343|21102A"
from a breakpoint in my code at the theImage = theControl.GetImage();
I'm reading the barcode with a Zerbra TC-20 mobile computer with a barcode reader. It says the barcode contains "A2552013|DED|21102A".
First off can you guys authenticate the attached barcode does have DED rather than R320?
If so, any ideas what I'm doing wrong?
Thanks,
Bernie
 

Can be observed in the Barcode - Barcode Types online demo.

Barcode Type: Code128

Required Value: IEö6014649

Resulted Value: IE996014649

 

Using an ampersand character in RadBarcode's Text leads to a server-side error. Replacing the symbol with its corresponding HTML entity allows the control to render its text successfully, but the generated image corresponds to the passed entity character.

If RadBarcode1.Text="&" the control generates this (read as "&"):
https://www.screencast.com/t/NuOVjB8EY

while it should be this (read as "&"):
https://www.screencast.com/t/vOhWkUoW

Workaround:

When we generate the image by keeping ShowText = True, then it throws the exception.

When we generate the image by keeping ShowText = false, then it successfully generates the image.

Steps to reproduce:Run the following setup:

ASPX:
        <telerik:RadBarcode ID="RadBarcode1" runat="server" RenderChecksum="false"></telerik:RadBarcode>
CS:
    protected void Page_Load(object sender, EventArgs e)
    {
        RadBarcode1.OutputType = Telerik.Web.UI.BarcodeOutputType.SVG_VML;
        RadBarcode1.Type = Telerik.Web.UI.BarcodeType.Code128;
        RadBarcode1.Text = "string&string"; //leads to server-side error
        //RadBarcode1.Text = "string&amp;string"; //leads to wrongly generated barcode

        RadBarcode1.LineWidth = 0;
        RadBarcode1.ShowText = true;
        RadBarcode1.ShowChecksum = false;
        RadBarcode1.GetImage();
    }

WORKAROUNDS:
- set OutputType to SVG_VML
- set ShowChecksum to false

Sample problematic setups:   

<telerik:RadBarcode runat="server" ID="RadBarCode2" Text="238.339.6814" Type="Code93Extended" OutputType="EmbeddedPNG" ShowChecksum="true"></telerik:RadBarcode>

<telerik:RadBarcode runat="server" ID="RadBarCode1" Text="238.339.6814" Type="Code93" OutputType="EmbeddedPNG" ShowChecksum="true"></telerik:RadBarcode>