hello can anyone help me with this error?
thanks alot...

Specified cast is not valid.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidCastException: Specified cast is not valid.

Source Error:

Line 121: while (dr.Read())
Line 122: {
Line 123: memberItem.ID = dr.GetInt32(0);
Line 124: memberItem.memberCode = dr.GetString(1);
Line 125: memberItem.FirstName = dr.GetString(2);

:-)

So which line is causing the problem???

I'm *guessing* (since you didn't tell us) that it is the line
    memberItem.ID = dr.GetInt32(0);

And that presumably means that the value in the database for that field (field zero) is not a valid integer.

Could be that the value in the DB is NULL. Could be that the value in the DB isn't an integer at all (e.g., could be a text field of some kind with values such as 'A17').

So... Time to go look carefully at your SQL query (the query that got you the DataReader) and then at the data in the DB.