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Old 7th Apr 2010, 01:47
Isomorphic Isomorphic is offline
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Join Date: May 2006
Posts: 37,456
Default SmartClient 7.0rc2:Patch for JS crash when calling getViewState() on undrawn ListGrid

We made some additions to the information returned by ListGrid.getViewState() between 7.0RC1 and 7.0RC2; a side-effect of this was the introduction of a JS crash if application code calls that method on a grid that has not yet been drawn. This patch resolves that issue.

Code:
//----------------------------------------------------------------------------
// Isomorphic SmartClient 7.0rc2 patch
// Purpose: Fix JS crash when calling getViewState() on an undrawn ListGrid
// 
// Applies to SmartClient 7.0RC2 builds only
//----------------------------------------------------------------------------
if (window.isc && isc.version.startsWith("7.0rc2/")) {
    isc.ListGrid.addProperties({
        getSpecifiedFieldWidth : function(_1) {
            _1 = this.getField(_1);
            var _2 = _1[this.fieldIdProperty],
                _3 = this.header ? this.header.members : null,
                _4 = this.frozenFields && this.frozenHeader ? this.frozenHeader.members : null,
                _5;
            if(_3 || _4) {
                var _6 = _3.find(this.fieldIdProperty, _2);
                if(!_6 && _4) {
                    _6 = _4.find(this.fieldIdProperty, _2);
                }
                if(_6 && _6.$pn && isc.isA.Number(_6.$pn)) {
                    _5 = _6.$pn;
                }
            }
            return _5;
        }
    });
} else if (window.isc) {
    isc.logWarn("Patch code included for SmartClient build version 7.0rc2. This page loads " +
    "SmartClient version:" + isc.version + ". The patch code will be disabled for this build and " +
    "should be removed.");
}
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