This exception is thrown if there is a syntax error in the SQL used for the DataColumn.Expression property typically used to filter rows, calculate the values in a column, or create an aggregate column. Note that other SQL syntax problems (such as invalid syntax in a Command ) generally lead to provider-specific errors such as System.Data.SqlClient.SqlException and System.Data.OleDb.OleDbException when you execute the Command . A related exception is EvaluateException . public class SyntaxErrorException : InvalidExpressionException { // Public Constructors public SyntaxErrorException ( ); public SyntaxErrorException ( string s ); // Protected Constructors protected SyntaxErrorException (System.Runtime.Serialization.SerializationInfo info , System.Runtime.Serialization.StreamingContext context ); } HierarchySystem.Object System.Exception(System.Runtime.Serialization.ISerializable) System.SystemException DataException InvalidExpressionException SyntaxErrorException |