Webdynpro performance issue for check box selection in ALV list

[raja_chennamaneni]

Hi Guys,

In the ALV list I have the check box option. By default in some of the ALV rows the checkbox option is disabled and for some of the rows it is enabled for user selection.

But the current problem is when the user marks or unmarks the checkbox option it is taking atleast 2 to 3 secs for the checkbox to be selected or deselected.

Please share me any valuable suggestions as to how to improve the performance for the above scenario.

Any thoughts wuld be of great help.

[Former Member · Accepted solution]

Hi,

There should be any performance issue when you select/de-select any check box in your ALV table.Below might be possibe reasons.

1) Have you written any code in your WDDOMODIFYVIEW( )?. If yes, pls share the code snippet.

2) Have you written any code in your checkbox action?.

Thanks

KH

[raja_chennamaneni · Accepted solution]

Hi KH,

The performance issue is happening only when the data is more to displayed in the ALV around 6000 to 8000 records.In those recs also some of the check box will be disabled and some of those will be enabled based on condition.

we did not write any code in WDDOMODIFYVIEW and also in the checkbox action.

All we read the table back again and based on check box selected records we perform some logic.

Appreciate any thoughts.

Thanks

Raja.

[Former Member · Accepted solution]

Hi,

Huge records make performace issue and as you said you're performing some logic on selected check box records by reading back the table again.

If you can provide the logic on checkbox which you've written, i can help you out to ovecome performance issue.

Thanks

KH

[raja_chennamaneni · Accepted solution]

Hi,

I need solution for the check box selection latency Issue. When there are huge no of recs in ALV, currently the checkbox selection is taking time atleat 2 to 3 sec when it is marked for selection.

Please let me know is there any solution on the latency part of check box selection.

Thanks.

Raja.

[former_member197475 · Accepted solution]

Hi Raja,

It's is an expected behavior only.

See actually you will be working in a thin UI layer. So when you are trying to process a huge number of records, it will obviously consumes time.

Only thing you can control it is via the processing logic of your data base query. Please look/change into the query alignment. It will help you but not to such a great extend, which ultimately depends on your number of records.

BR,

RAM.

[raja_chennamaneni · Accepted solution]

Hi,

The above is my ALV where some of the check box are enabled for selection.All the green lines are allowed for selection.

We did not write any code for performing any event after selecting the check box.

In the above ALV after selecting the check box its taking 2 to 3 seconds for marking the selection.

Pls share your inputs as how to ignore the check box selection latency issue.

[raja_chennamaneni · Accepted solution]

Hi All,

Implemented the SAP_Note#1717841 for the above problem and the check box latency issue on the ALV is no more.

thank you

Raja.