ParamQuery grid support forum

General Category => Help for ParamQuery Pro => Topic started by: atmaneuler on October 22, 2020, 10:01:18 am

Title: Event change of button in toolbar is different
Post by: atmaneuler on October 22, 2020, 10:01:18 am

I try to make show/hide column by toolbar buttons like demo:
https://paramquery.com/demos/showhide_columns

But it occure error at:

Code: [Select]

var arr = $(this).val(),

Quote

ERROR TypeError: Cannot read property 'toLowerCase' of undefined
    at jQuery.fn.init.val (jquery.js:8441)

I try to log, and this I got:
With demo:
(http://images/demo.png)
And what I get on my
(http://images/real.png)

What did I misssing?

Title: Re: Event change of button in toolbar is different
Post by: paramvir on October 22, 2020, 10:15:47 am

You have taken the code from the free version example.

There is difference between "this" context in the toolbar event listeners between the free version and Pro version.

In Pro version, "this" context variable is the grid instance, hence the error.

Please take help of the Pro example to set up show hide columns:

https://paramquery.com/pro/demos/showhide_columns