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how to move up/down the row [message #1073561]

Thu, 25 July 2013 00:08

cheng shouwu
Messages: 12
Registered: September 2012

Junior Member

Hi Dears:

I am using GridTreeViewer,and now When I select a row in it and want to move it to above the previous row(the same level),what method I can do?

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Re: how to move up/down the row [message #1073615 is a reply to message #1073561]

Thu, 25 July 2013 03:16

Thomas Schindl
Messages: 4658
Registered: July 2009

Senior Member

Reorder your model and call refresh passing the parent domain object.

Tom

On 25.07.13 06:08, cheng shouwu wrote:
> Hi Dears:
>
> I am using GridTreeViewer,and now When I select a row in it and want to
> move it to above the previous row(the same level),what method I can do?

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Re: how to move up/down the row [message #1073649 is a reply to message #1073615]

Thu, 25 July 2013 04:35

cheng shouwu
Messages: 12
Registered: September 2012

Junior Member

yes,I has done with this way,but it can not work correctly.after saved and reopen it,it can show correctly

//itemEntity is one which want to be moved up
//finde the parent
ProjectitemEntity parent = itemEntity.getParent();
//sub items
List<ProjectitemEntity> subItems = parent.getSubItems();
int i = subItems.indexOf(itemEntity);
//above item
ProjectitemEntity aboveItem = subItems.get(i-1);
//reorder
itemEntity.setOrdNo(i-1);
aboveItem.setOrdNo(i);
//refresh
itemTreeGrid.refresh(parent);

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Re: how to move up/down the row [message #1073651 is a reply to message #1073649]

Thu, 25 July 2013 04:39

Thomas Schindl
Messages: 4658
Registered: July 2009

Senior Member

Have you set a ViewerComparator, who tells the viewer to sort your
subitems according to the ordNo?

Tom

On 25.07.13 10:35, cheng shouwu wrote:
> yes,I has done with this way,but it can not work correctly.after saved
> and reopen it,it can show correctly
>
> //itemEntity is one which want to be moved up
> //finde the parent
> ProjectitemEntity parent = itemEntity.getParent();
> //sub items
> List<ProjectitemEntity> subItems = parent.getSubItems();
> int i = subItems.indexOf(itemEntity);
> //above item
> ProjectitemEntity aboveItem = subItems.get(i-1);
> //reorder
> itemEntity.setOrdNo(i-1);
> aboveItem.setOrdNo(i);
> //refresh
> itemTreeGrid.refresh(parent);

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Re: how to move up/down the row [message #1073660 is a reply to message #1073649]

Thu, 25 July 2013 04:53

cheng shouwu
Messages: 12
Registered: September 2012

Junior Member

Ha,I have got it

subItems.remove(i-1);
subItems.add(i-1,itemEntity);
subItems.remove(i);
subItems.add(i,aboveItem);

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