ParamQuery grid support forum

General Category => Help for ParamQuery Grid (free version) => Topic started by: noctrona on February 13, 2014, 01:25:03 pm

Title: Is that possible to add/remove column for grid
Post by: noctrona on February 13, 2014, 01:25:03 pm

Hi,

I know we can add/remove row dynamically. But I have a requirement to add/remove column in grid,  so I want to know whether we can do it?


Thank you!

Title: Re: Is that possible to add/remove column for grid
Post by: paramvir on February 13, 2014, 06:47:03 pm

Add a new column object in colModel using push (if at end) or splice (if in middle)

colModel.push( { title: "yyy", dataIndx: "xxx", width : n } );

and call

Code: [Select]

$grid.pqGrid( "refreshDataFromDataModel" );
 $grid.pqGrid ( "refresh" );


Title: Re: Is that possible to add/remove column for grid
Post by: noctrona on February 14, 2014, 08:41:58 am

Quote from: paramquery on February 13, 2014, 06:47:03 pm

Add a new column object in colModel using push (if at end) or splice (if in middle)

colModel.push( { title: "yyy", dataIndx: "xxx", width : n } );

and call

Code: [Select]

$grid.pqGrid( "refreshDataFromDataModel" );
 $grid.pqGrid ( "refresh" );


Hi,

Thanks for your response.
I try it on my page. But still have problem.
As I understanding, I need to get the all colModel array then I can push new column in it. Is that right?

I use the following code:
var colModel = $( ".selector" ).pqGrid( "option", "colModel" );
var title=colModel[0].title;

But when I get the "colModel" and try to get some attributes about this object, I will see the following error:
Cannot read property 'title' of undefined.

I'm sure I import "pqgrid.min.js" on my page.
So do you know why this happened? Do I make any mistake for these codes?


Thank you!

Title: Re: Is that possible to add/remove column for grid
Post by: paramvir on February 14, 2014, 09:04:51 am

From the error it seems that your colModel is empty; you haven't added any column in it yet.

Just check the length of colModel before trying to access colModel[0]

http://jsfiddle.net/LAgZx/217/

Title: Re: Is that possible to add/remove column for grid
Post by: noctrona on February 14, 2014, 10:21:23 am

Quote from: paramquery on February 14, 2014, 09:04:51 am

From the error it seems that your colModel is empty; you haven't added any column in it yet.

Just check the length of colModel before trying to access colModel[0]

http://jsfiddle.net/LAgZx/217/

You are right. I check my code and found a stupid mistake. I didn't get colModel about my target, that's why colModel is empty.

Thank you!