how to filter string column using contains and start with

[Mohammed]

 dear team,
i'm trying to filter table pragmatically,
i use the below code and it is working only for equal to, how can i do the same for start with and contains operators because the below code not working for them.
do i miss something 
switch (Operator) {
                    case ("Contains"):
                        objFilter.Operator = Telerik.Reporting.FilterOperator.Like;
                        objFilter.Value = string.Format("%{0}%", FieldValue);
                        break;
                    case ("StartWith"):
                        objFilter.Operator = Telerik.Reporting.FilterOperator.Like;
                        objFilter.Value = string.Format("{0}%", FieldValue);
                        break;
                    case ("EqualTo"):
                        objFilter.Operator = Telerik.Reporting.FilterOperator.Equal;
                        objFilter.Value = string.Format("{0}", FieldValue);
                        break;
                    default:
                        objFilter.Operator = Telerik.Reporting.FilterOperator.Equal;
                        objFilter.Value = string.Format("{0}", FieldValue);
                        break;
                }

[Elian]

Hi Mohammed,

The code looks logically correct and it should be working. From the snippet that you have posted there isn't information if you are setting the Expression of the filter. Additionally check the values of the FieldValue variable. You can try to serialize the report definition and see what are the final filters that are created. This might give you a clue on what's wrong. 
 
Regards,
Elian
Telerik