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Implement grid event and call default event behavior?

08/10/2009
17:34

dvorak

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There are many very useful extension points in the grid however I often find that I'd like the default behavior for an event to still take place, along with a bit of my code. So have it run the code in my function and then do what it normally would have done have I not provided this function.

For example, say I implement beforeSelectRow event:

beforeSelectRow: function(rowid) {

jQuery("#my_div").css({ "white-space" : "normal", "height" : "30px" });
},

Is there a way to then call the default beforeSelectRow() event handler in jqGrid? Something like base.beforeSelectRowI(rowid)?

I know this isn't exactly object oriented programming so, I'm wondering if there's a way to emulate this behavior. use jquery's trigger event functionality?

09/10/2009
04:24

tony

Sofia, Bulgaria

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Hello,

For what I understand you can:

beforeSelectRow: function(rowid, e)

{

myfunction();

}

Outside the grid

function myfunction ()

{

// do something

}

And then you can call it where you want

Tony

For professional UI suites for Java Script and PHP visit us at our commercial products site - guriddo.net - by the very same guys that created jqGrid.

09/10/2009
12:06

dvorak

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Thanks for the reply Tony. Sorry, I don't think I explained my problem right. So jqgrid has default event behavior for when the user selects a row for example. If I implement an event, like beforeSelectRow, then the default behavior does not happen. Only what's in my beforeSelectRow function will be run. I'm trying to find a way to have it do both. Execute jqgrid's default event behavior as well as my code.

beforeSelectRow: function(rowid) {

// do some custom code

// do jqgrid's default beforeSelectRow code

};

09/10/2009
14:57

markw65

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Unfortunately, the exact way to do this varies depending on the callback, but for the beforeSelectRow, just return "true".

Mark

09/10/2009
18:06

dvorak

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Gotcha. That worked. Thanks Mark!

16/11/2009
04:00

Sloub

France

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13/11/2009

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Hello,

Is there something special to do for the "return true" to work ?

I had that first problem : http://www.trirand.com/blog/?p.....ut-fields/

Thank's to Mark, this is solved, except that in my case, the return true does not seem to execute default behaviour.

beforeSelectRow: function(rowId, e) {
myBeforeSelectRow(rowId,e);
}

//outside the grid : this should act as default handler

function myBeforeSelectRow(rowid, e) {
return true;
}

This code does not work for me, either on ie 6, nor firefox 3.x & jqgrid 3.6

Thank's for your help

Sloub

16/11/2009
04:10

dvorak

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This worked in my case in IE7/FF, etc.

Are you missing the return keyword in the beforeSelectRow() function?

beforeSelectRow: function(rowId, e) {
return myBeforeSelectRow(rowId,e);
}

16/11/2009
05:24

Sloub

France

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thank's dvorak, this works better with the return statement.

Sloub

16/11/2009
08:28

markw65

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Or, simpler and more efficient:

beforeSelectRow: myBeforeSelectRow

(ie there's no need to wrap your handler in an anonymous function)

Mark

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