[CLOSED] Problem with client overrides

[vadym.f]

Hi,

I'm trying to put some custom override code in a centralized location that will be registered and included on every page. That works to some degree, however, I've encountered a problem. If specific UX controls are not physically present on a page, their Ext resources will not be included by default and the override will throw a client error.

Ext.override(Ext.ux.Multiselect, {
    onViewBeforeClick: function (vw, index, node, e) {
        this.preClickSelections = this.view.getSelectedIndexes();

        if (this.disabled || this.readOnly || (this.preventDeselect && this.preClickSelections.indexOf(index) != -1)) {
            return false;
        }
    }
});

This resource is included by Ext framework at runtime I believe wherever the Multiselect control is present but otherwise it's missing causing an "undefined" error when the override code is parsed:

<script type="text/javascript" src="/ux/extensions/multiselect/multiselect-js/ext.axd?v=12127"></script>

Could you recommend a generic way of handling this problem?

[Daniil]

Hi Vadym,

I think this way:

if (Ext.ux && Ext.ux.Multiselect) {
    //override
}

[vadym.f]

Hi Vadym,

I think this way:

if (Ext.ux && Ext.ux.Multiselect) {
    //override
}

Thanks Daniil, that should work for me. Please mark this question as closed.