This the first time i using code behind. i make 2 file 
first file i make a list of data and the second file is inputing data and editing data
if i compile my fist file it works using inherit=newsite.listdata and the dll create successfull
when i compile my second file using inherit=newname.inputdata my second file is work but if i using inherit=newsite.inputdata, i got
error below this ... 
Compiler Error Message: BC30456: 'CreateResourceBasedLiteralControl' is not a member of 'ASP.IUCategory_aspx'.

any body please help me what wrong ?
i compile using Visual Studio