Selection-screen validation

[Former Member]

Hi Experts,

Please can any one give me the details ..

1)What is the actual use of selection screen validation?

2) When we use Selection-screen validation?

3)If we are not written the selection-screen validation is there any effect?

I know how to write the validation for a selection screen. But why i am asking above questions is I am very new to ABAP .My Functionl people also new to ABAP. They told me one report.I asked me what are the validation for selection screen . At that time they told there is no validation.

Thats the reason to ask above questions..

please tell me the details..

Thanks In Advance..

Thanks and Regards

Siri..

[Former Member]

hi,

if u validate the data that is entered by user at the selection-screen, at that time we use selection-screen validation.

if there is no validation at the selection-screen we need to accept the data which is entered by user.

<REMOVED BY MODERATOR>

Edited by: Alvaro Tejada Galindo on Feb 27, 2008 12:24 PM

[Former Member]

Abhi,

Selection Screen Validation are used for correct input processing.

Selection screen elements are used further in select queries to fetch data. if user enters some wrong input

we will unnecessarily hit the data base with wrong values and select will fail , hence validation of the input

will avoid unnecessary data base hit.

<REMOVED BY MODERATOR>

Edited by: Alvaro Tejada Galindo on Feb 27, 2008 12:26 PM