Problem in printing RFID Label with Zebra R110XiIII plus

Question

Hi,

Now i want to print a RFID tag with Zebra printer. We can open the connection with BizTalk RFID server. After that i'm getting Null Reference Exception in PrintTag command.

Code:
using (DeviceConnection deviceConnection = new DeviceConnection("WS03_OFFICE07", "ZBR2282607"))//ZBR2282607
            {
                try
                {
                    deviceConnection.Open();
                    //deviceConnection.ExecuteVendorDefinedCommand("Zebra Technologies", "ZBR2282607", "50,50,0,4,1,1,N,");
                   
                    deviceConnection.SetCurrentPrintTemplateName("CASE2");
                    byte[] tagIdBytes = HexUtilities.HexDecode(tagId);
                    byte[] tagDataBytes = HexUtilities.HexDecode("123456");
                    Dictionary<string, string> fields = new Dictionary<string, string>();
                    fields.Add("1", text);
                    PrintLabel label = new PrintLabel(tagIdBytes, tagDataBytes, null, null, fields, LockTargets.None);
                   
                    deviceConnection.PrintTag(label);
                    MessageBox.Show("The tag is printed successfully");
                }
                catch (RfidException ex)
                {
                    MessageBox.Show("print operation failed" + ex.ToString());
                }
                finally
                {
                    deviceConnection.Close();
                }
            }

What was the problem?  Anyone please help me in this issue.

Thanks in advance.

Answer 1

Hi,

You can set breakpoints and debug the code, base on the Null Reference Exception ,new DeviceConnection("WS03_OFFICE07", "ZBR2282607") may not successfully been created. check if the connection with Zebra printer is good or not.

Regards

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