cross link two different threads

[sumit.sinha]

hi guys, this is sumit from Larsen & Toubro Mumbai-India,
I am writing a code for some sort of software in which execution of some code is required as soon as my software receive a barcode from barcode scanner (serial input). Now through datareceived event handler i am able to read the barcode but after that i am not able to send this barcode to any textbox or even i am not able to start any other event like performclick to any button or anything. I am getting an exception as cross linking of threads not possible. please refer to the image and give me the solution asap.
Thanx
Sumit

 

[JuggaloBrotha]

The term is "Thread Delegation" meaning you have to access/change a control's property through a delegate, which require invoking the object first. Something along these lines:

If Object.InvokeRequired Then
    DelegateSub(Pass the data along here)
Else
    Object.Property = whatever
End If

 

[sumit.sinha]

still not able to do it

hey, thanx for the reply but this code is also not working.
the method which I am invoking by this process is then giving an exception as cross threading not possible.

can u please describe this process better (mayb the whole code) because may be I am not able to code it properly.

lets say textbox1 is the textbox where i have to show the data received from the serial port and the name of the serial port is data.

so please tell the code what i have to write inside the data_datareceived event handler.

regards
Sumit