serialportDatareceived event handling

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C#

C#4.0

hi,

in my appli i need to read data thuogh serialport in two different times.

1) when i write data to handheld system through serialport ,that sholud send a success signal
2)To read some other data from serialport.

for the first one, i wrote the code for receiving success data, in esrialportdatareceived event.

then for 2) where can i write the code of reading. if i write in that event everytime success data is showing as output.