[ynaik]

Did the HeaderClickEvent work? The event doesn't seem to invoke the handler code, in my case. My grid is not bound to a datasource. I am populating the values through setData() method, another approach for pagination grid. I am struck in Sorting behavior. Can someone help.

Yes, HeaderClickEvent worked for me.


listGrid.addHeaderClickHandler(new HeaderClickHandler() {

public void onHeaderClick(HeaderClickEvent event) {

listGrid.invalidateCache();
listGrid.setSortField(event.getFieldNum());




}
});

[katrays]

Did the HeaderClickEvent work? The event doesn't seem to invoke the handler code, in my case. My grid is not bound to a datasource. I am populating the values through setData() method, another approach for pagination grid. I am struck in Sorting behavior. Can someone help.

Thanks a lot mnenchev for your prompt reply ,

Do I have invalidateCache on HeaderClickEvent

listGrid.addHeaderClickHandler(new HeaderClickHandler() {

public void onHeaderClick(HeaderClickEvent event) {

listGrid.invalidateCache();
listGrid.setSortField(event.getFieldNum());

}
});

How can i set the Request.getSortBy() value in executeFetch Method ? Please Help

[ynaik]

Dude, if u=you set cansort = false, how can you expect to sort something :)? In order to force server sorting only, always invalidate the cache.

1) is it possible to disable the Client Side Sorting (Right click on Column Header, I don;t want see Sortng options)

2) is it possible to add custom Filter builder option on right click of Column Header ? The default options are Sort Asc,Sort Desc ,Columns,Group By & Freeze Id.

[mnenchev]

Dude, if u=you set cansort = false, how can you expect to sort something :)? In order to force server sorting only, always invalidate the cache.

I was able to obtain the Request.getSortBy() value after commenting the following line

listGrid.setCanSort(false);

If I comment it //listGrid.setCanSort(false); ,
then I get the column value using Request.getSortBy() & both the client & server side sorting are enabled.

When i uncomment it then Request.getSortBy() is always null & unable to do server side sorting.

How can i disable client side sorting & retain just the server side sorting ?

Thanks in advance.

[ynaik]

Thanks a ton, For some reason request.getSortBy(); is returning null always , dunno which property of ListGrid triggers this value ?

Please let me know if i have to set some special property to get this value, I will check all DS declarations, Thanks again "mnenchev", you are a Great help.

I was able to obtain the Request.getSortBy() value after commenting the following line

listGrid.setCanSort(false);

If I comment it //listGrid.setCanSort(false); ,
then I get the column value using Request.getSortBy() & both the client & server side sorting are enabled.

When i uncomment it then Request.getSortBy() is always null & unable to do server side sorting.

How can i disable client side sorting & retain just the server side sorting ?

Thanks in advance.

[ynaik]

//in ds :
	final String sortBy = request.getSortBy();
         someRPCservice.fetch(sortBy,..........).....
................
// in rpc impl fetch
	if (sortBy != null) {
			
				if (sortBy.charAt(0) == '-') {
			
					descendingSortOrder = true;
				} else {
					descendingSortOrder = false;
				}
			}
//        sql query using descendingSortOder

If you use the code from this thread it must work, check your datasources declarations?!

Thanks a ton, For some reason request.getSortBy(); is returning null always , dunno which property of ListGrid triggers this value ?

Please let me know if i have to set some special property to get this value, I will check all DS declarations, Thanks again "mnenchev", you are a Great help.

[mnenchev]

//in ds :
	final String sortBy = request.getSortBy();
         someRPCservice.fetch(sortBy,..........).....
................
// in rpc impl fetch
	if (sortBy != null) {
			
				if (sortBy.charAt(0) == '-') {
			
					descendingSortOrder = true;
				} else {
					descendingSortOrder = false;
				}
			}
//        sql query using descendingSortOder

If you use the code from this thread it must work, check your datasources declarations?!

[ynaik]

I think this is done automatically?!?!

Yes , It is suppose to set this value automatically but it is not.

1) Any idea how to set sortState on ListGrid ?

listGrid.setSortState(?String ) , dunno how to set this input string value

which property of listGrid sets the DSRequest.getSortBy() value?

when i print the listGrid.getSortState(), i see the following values
listGrid.getSortState() = ({
fieldName:null,
sortDir:false
})

2) any sample code on server side sorting using simple smartgwt ListGrid with GWT RPC mechanism?

3) Can some one guide me on how to achieve server side sorting using GWT RPC ?

Thanks in advance

[mnenchev]

There is no real paging grids, you must develop one. Btw i met somewhere example for smart gwt in some thread. Look for it.

Thanks mnenchev for your quick reply...
yes you're right i want to create real paging grid,
is there any other way to achieve this?
i don't need life grid with grid scrolling .... i can't found any other grid ....




___________________
Thanks,
Paata Lominadze,
Magticom LTD.

[mnenchev]

I think this is done automatically?!?!

Thanks a lot mnenchev for your prompt reply ,

Do I have invalidateCache on HeaderClickEvent

listGrid.addHeaderClickHandler(new HeaderClickHandler() {

public void onHeaderClick(HeaderClickEvent event) {

listGrid.invalidateCache();
listGrid.setSortField(event.getFieldNum());

}
});

How can i set the Request.getSortBy() value in executeFetch Method ? Please Help

[ynaik]

You have to implement the sorting logic on the server if you use rpc, SortBy returns the name of the column for asc or -column name for desc (i think?!?).
Client sorting is done automatically, by default by sorting all cached records. This can be tricky if you want server sorting you may want to invalidate the cache.

Thanks a lot mnenchev for your prompt reply ,

Do I have invalidateCache on HeaderClickEvent

listGrid.addHeaderClickHandler(new HeaderClickHandler() {

public void onHeaderClick(HeaderClickEvent event) {

listGrid.invalidateCache();
listGrid.setSortField(event.getFieldNum());

}
});

How can i set the Request.getSortBy() value in executeFetch Method ? Please Help

[paatal]

RE:

Thanks mnenchev for your quick reply...
yes you're right i want to create real paging grid,
is there any other way to achieve this?
i don't need life grid with grid scrolling .... i can't found any other grid ....

Well, even if you set 20 records smart gwt will fetch a little more, than 20. If you mean real paging you will not find one, because the paging is done by life grid with grid scrolling.

___________________
Thanks,
Paata Lominadze,
Magticom LTD.

[mnenchev]

You have to implement the sorting logic on the server if you use rpc, SortBy returns the name of the column for asc or -column name for desc (i think?!?).
Client sorting is done automatically, by default by sorting all cached records. This can be tricky if you want server sorting you may want to invalidate the cache.

Hi,

Can you please post sample line of code to invoke the server side sorting in ListGrid Using GWT RPC.

How to enable the server side sorting on ListGrid?
on executeFetch, request.getSortBy() always shows null, how to set this value?

showcase example was not much of help, can somebody please post the client side sorting line of code vs server side sorting line of code

Thanks for your great support.

[mnenchev]

Well, even if you set 20 records smart gwt will fetch a little more, than 20. If you mean real paging you will not find one, because the paging is done by life grid with grid scrolling.

sorry i missed my server implementation file.
GwtRpcDataSource.java and FetchResult.java i took from this forum, if required i can post them.

[paatal]

missed file

sorry i missed my server implementation file.
GwtRpcDataSource.java and FetchResult.java i took from this forum, if required i can post them.