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retriving values of hidden field and using it for retrieving data from database  RSS feed

dimpy sharma
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hi everyone this is my first post ...this is my jsp code what i want is that whenever somebody clicks over any row in the table its post no should be retrieved and stored in hidden field and its content should be retrieved again in "question.jsp" actually i need this value for retrieving contents from database ..but again and again i am getting null value instead of value stored in hidden field .however if i am manually typing the value in the normal text feild i am able to get it through request.getparameter();
please help me..
It is sorta covered in the JavaRanch Style Guide.
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