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Fixed scrolling performance issue #122

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Fixed scrolling performance issue #122

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36 changes: 23 additions & 13 deletions jquery.fixedheadertable.js
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,9 @@
};

var settings = {};
var body = undefined;
var header = undefined;
var footer = undefined;

// public methods
var methods = {
Expand Down Expand Up @@ -332,23 +335,30 @@
$self.bind('scroll', function() {
if (settings.fixedColumns > 0) {
var $fixedColumns = $wrapper.find('.fht-fixed-column');
var margin = -$self.scrollTop();

if (body === undefined) {
body = $fixedColumns.find('.fht-tbody table');
}
body.css({
'margin-top': margin
});
}

$fixedColumns.find('.fht-tbody table')
.css({
'margin-top': -$self.scrollTop()
});
if (header === undefined) {
header = $thead.find('table');
}
header.css({
'margin-left': -this.scrollLeft
});

$thead.find('table')
.css({
if (settings.footer || settings.cloneHeadToFoot) {
if (footer === undefined) {
footer = $tfoot.find('table');
}
footer.css({
'margin-left': -this.scrollLeft
});

if (settings.footer || settings.cloneHeadToFoot) {
$tfoot.find('table')
.css({
'margin-left': -this.scrollLeft
});
}
});
},
Expand Down Expand Up @@ -703,4 +713,4 @@

};

})(jQuery);
})(jQuery);
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