'宣言 Protected Friend Overloads Function CreateStringExpression( _ ByVal fieldName As String, _ ByVal op As ComparisonOperator, _ ByVal value As Object, _ ByVal caseSensitive As Boolean, _ Optional ByVal dataItem As Object _ ) As Expression
protected internal Expression CreateStringExpression( string fieldName, ComparisonOperator op, object value, bool caseSensitive, object dataItem )