Question

157

What the difference between loadComplete and gridComplete events?

rated 0 times [ 163] [ 6] / answers: 1 / hits: 30775 / 11 Years ago, fri, march 15, 2013, 12:00:00

This question originated after I looked on this answer of Oleg and demo-grids in it.

gridComplete:

This fires after all the data is loaded into the grid and all other
processes are complete. Also the event fires independent from the
datatype parameter and after sorting paging and etc.

loadComplete:

This event is executed immediately after every server request. data
Data from the response depending on datatype grid parameter

From that docs I understood that gridComplete fires at the end of drawing grid, and loadComplete fires after jqGrid completes communication with backend.

And so I wonder - why in demos, loadComplete used for change color of cells and not gridComplete?

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josuea

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answered 11 Years ago ednakarolinal · Accepted Answer

I think that this question is asked by many users of jqGrid. So it's interesting to know the answer.

I personally prefer to use loadComplete. If you examine code from all my examples which I posted, you will find gridComplete only when the Original Poster posted it in the question and I would have modified a little code. I prefer to use loadComplete because of some advantages of loadComplete and disadvantages of gridComplete.

Here are advantages of loadComplete:

It's the last callback which will be called if the whole grid body will be reloaded. For example after loading the page on the grid from the server. It's important to understand, that if the user changes sorting of some column or sets filter or chooses another page of the grid; the grid body will be reloaded.

loadComplete has parameter data which represent full page of local data or full data loaded from the server.

On the other side gridComplete will be called (in the current version of jqGrid 4.4.4) from internal updatepager (see here), which will be called from delRowData (see here), addRowData (see here) and clearGridData (see here) methods; in addition to addXmlData (see here) and addJSONData (see here). It's not what one mostly want.

Another disadvantage of gridComplete one can see if one examines the code of addXmlData (see here) and addJSONData (see here) from where updatepager is called and so gridComplete will be called. If one uses loadonce: true and the internal parameters data and _index will be filled with full data returned from the server. One can see when using loadonce: true; the callback gridComplete will be called after the first page of data are loaded from the sever. At this moment data and _index contains only the data for the page. On the other side loadComplete will be called later after all data returned from the server are processed and saved locally in data and _index.

If you load the data from the server and if you don't use loadonce: true option, clearGridData, addRowData and delRowData then you could use gridComplete instead of loadComplete.