new Ext.grid.column.Check()

[albanirneves]

Hello, I use to do it on ext 6.0.1:

{
    xtype: 'checkcolumn',
    header: 'Visualizar',
    dataIndex: 'read',
    flex: 1,
    menuDisabled: true,
    renderer: function(val, m, rec) {
        if (rec.get('leaf')){
            return (new Ext.ux.CheckColumn()).renderer(val);
        } else {
            return '';
        }
    },
    listeners: {
        beforecheckchange: 'checkReadOnly'
    }
}

But now I updraded to 6.2 version and Ext.ux.CheckColumn() doesn't work. Console says cannot read 'updateHeaderState' of undefined. In this case, what is undefined is the config in constructor method of Ext.grid.column.Check.

How can I solve it?

[Gary Schlosberg]

Thanks for the report. I don't see Ext.ux.CheckColumn in the docs. Can you please post a test case which reproduces the issue you're seeing?
https://fiddle.sencha.com/#home

[albanirneves]

Ext.ux.CheckColumn, is the alternate name for Ext.grid.column.Check.


If I put Ext.grid.column.CheckI have the same error.

[evant]

You are creating a memory leak by doing that. It's not an appropriate way to do that. Call the column defaultRenderer on the passed instance.

[albanirneves]

You are creating a memory leak by doing that. It's not an appropriate way to do that. Call the column defaultRenderer on the passed instance.

Ok, in this case I want to show a checkbox if rec.get('leaf') otherwise hide it.
In the image example, the first line is leaf false, without checkbox.
Can you give me an example how to use defaultRenderer on the passed instance?

CheckColumn.png