topic Re: Clear Parameters in Application Development and Automation Discussions

Clear Parameters

Former Member — Thu, 15 May 2008 21:38:05 GMT

Hi,

I want to clear the parameters after I process something and then go back. After all

the process I have tried something like this.

CLEAR P_VAR.
P_VAR = ''.

But doesn't work, it still have the previous value. Someone knows how can I solve this?

Regards,

Isaac Melendez

Re: Clear Parameters

Former Member — Thu, 15 May 2008 21:41:31 GMT

I recently did the same and it works

Did you placed the code in at selection-screen?

Re: Clear Parameters

Former Member — Thu, 15 May 2008 21:41:58 GMT

Is P_VAR a parameter on the selection screen? can you show us how you declared it?

Re: Clear Parameters

Former Member — Thu, 15 May 2008 21:52:19 GMT

Hi Isaac,

using debugging you can find exactly where the data is append into your parameter.

Check the declaration of the field. It may contain any default values.

The best solution for youe query is Debugging.

Thanks.

Re: Clear Parameters

Former Member — Thu, 15 May 2008 22:00:52 GMT

yes, debugging should show you why it's not clearing.

even with a default value in the parameter declaration, you should be able to easily clear it.

PARAMETERS: p_var like rlgrap-filename DEFAULT 'c:\test'.

START-OF-SELECTION.

WRITE: /5 p_var.

CLEAR p_var.{/code}

Re: Clear Parameters

Former Member — Thu, 15 May 2008 22:01:45 GMT

Hi,

I solve my problem, thanks to you guys. The problem was that I put the code

in the START-OF-SELECTION, not in AT SELECTION-SCREEN.

Regards,

Isaac Melendez

Re: Clear Parameters

Former Member — Fri, 16 May 2008 14:19:56 GMT

Hi again,

I have a problem when clearing the parameters. I clear them in AT SELECTION-SCREEN, but they are clear when I press Execute button.

How can I clear them just when I go back, not in the Execute button.

Regards,

Isaac Melendez

Re: Clear Parameters

Former Member — Fri, 16 May 2008 14:33:25 GMT

Hi,

can you give me the part of code, Under At selection-screen, where you are using CLEAR statement.

In my program...its working properly.

Give me the code...will go thru that.

Regards

Sandeep reddy

Re: Clear Parameters

Former Member — Fri, 16 May 2008 14:45:54 GMT

Hi Sandeep,

Here is the code:

DATA: LV_MES(2) TYPE C.

PARAMETERS: P_MES(2) TYPE c OBLIGATORY.

AT SELECTION-SCREEN.
  CLEAR: P_MES.

START-OF-SELECTION.

* Here is empty P_MES when I execute
  LV_MES = P_MES.

END-OF-SELECTION.

Regards,

Isaac Melendez

Re: Clear Parameters

Former Member — Fri, 16 May 2008 14:50:12 GMT

Issac is working ok.

Why do you want it to clear when you go back?

It is possible, but you will exit the report, so I don't get why you would want that

Re: Clear Parameters

Former Member — Fri, 16 May 2008 14:56:43 GMT

Hi,

DATA: LV_MES(2) TYPE C.

PARAMETERS: P_MES(2) TYPE c OBLIGATORY.

AT SELECTION-SCREEN.

CLEAR: P_MES.

START-OF-SELECTION.

Here is empty P_MES when I execute

LV_MES = P_MES.

END-OF-SELECTION.

You are writing CLEAR , immediately aftr AT SELECTION-SCREEN..

SO, when you press execute...this event will get trigerd. And the Parameter will get cleared.

But, at wat stage you want to clear the parameetr , tell me.

I modified your code like this....jus chk.

In case ur requirement is not fullfilled...please revert back.

If it solves ur problem, dont forget to reward points.

DATA: LV_MES(2) TYPE C.

PARAMETERS: P_MES(2) TYPE c OBLIGATORY.

AT SELECTION-SCREEN.

LV_MES = P_MES.

CLEAR: P_MES.

write : lv_mes.

Regards

Sandeep reddy

Re: Clear Parameters

Former Member — Fri, 16 May 2008 14:57:44 GMT

Hi Ramiro,

It isn't working like I want. The process is.

- I fill the parameters values.

- I execute the program.

- Then it show me a report.

- Then I go back to the parameters screen (and I want to clear the parameters here).

The problem is that if I Clear the parameters in AT SELECTION-SCREEN, then the

parameters are cleared when I press execute button.

- I fill the parameters values.

- I execute the program. (before, the parameters are cleared, and I can't process them)

- Then it show me a report.

- Then I go back to the parameters screen (and I want to clear the parameters here).

Regards,

Isaac Melendez

Re: Clear Parameters

Former Member — Fri, 16 May 2008 15:15:54 GMT

Hi Sandeep,

That works, thanks.

Regards,

Isaac Melendez