topic Re: Refreshing ALV Tree on Input in Application Development and Automation Discussions

Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 09:20:47 GMT

Save Environment. Save Yourself.

Hi Experts!!

I have 2 screens in an application - left being ALV tree (in which user id is an item under a node) and at right I have an input field. Initially, item was showing X and even the input field. Once I changed input field to Y and saved, the value is being updated there but the item under ALV tree is still showing X.

I searched for this issue in SCN and found a lot. But none of the methods solved my problem. Can anybody please help?

I have tried with SET_SCREEN_UPDATE, FRONTEND_UPDATE, FREE etc.

Thanks in advance!!

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 09:27:04 GMT

Use

CALL METHOD g_alv_tree->frontend_update.

CALL METHOD cl_gui_cfw=>flush

EXCEPTIONS

cntl_system_error = 1

cntl_error = 2.

declare g_alv_tree refering to cl_gui_alv_tree.

Regards,

Raghu.

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 09:30:36 GMT

Thanks for the reply. I have already tried it. It's not working.

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 09:33:25 GMT

Did you written in PBO of the screen.

Regards,

Raghu.

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 09:35:39 GMT

Yes...

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 09:51:31 GMT

Hi,

try using...

In PAI,

Where G_GRID- (Object for CL_GUI_ALV_TREE)

CALL METHOD G_GRID->FREE.

CLEAR G_GRID.

In PBO,

Again recreate the object .

Hope this helps.

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 10:05:01 GMT

When I tried this, entire ALV tree disappeared.

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 10:16:35 GMT

Have u recreated the object and displayed the ALV Tree in PBO?

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 10:20:13 GMT

Yes..

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 10:31:11 GMT

Ok try like this,

When u change the value in ur input field and press save, do all the actions that has to be did at the table level.

Now, Free your ALV Tree object...

say, CALL METHOD C_ALVGD->FREE.

CLEAR C_ALVGD.

try performing CALL SCREEN 9000 -

> Your Display screen. (call the same screen once again,

immediately after freeing the object).

This may help you....

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 10:41:20 GMT

Thanks for the reply. But still the problem persists... When I am FREEing the tree, the tree is disappearing. When I am going for some other options (like frontend_update etc.), it's not updating at all.

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 10:43:10 GMT

Have you tried calling the same screen, after freeing the objects....

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 10:44:43 GMT

Yes, still the tree disappearing

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 10:47:27 GMT

Is the Object freeing writtern:

User_command -> Under Case ...Endcase -> When 'SAVE' -> after doing all the data processing - > free object -> Call Screen (Your display screen number)....

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 10:50:25 GMT

Yes, this is what I have exactly done.

Re: Refreshing ALV Tree on Input

Former Member — Mon, 06 Dec 2010 11:06:59 GMT

I can see CHANGEITEM in the class, but when being used, it's giving error. Can somebody tell me why so? How can I access it. It's under public section only. Please help me out.