Filter specific columns on displayed grid about editablegrid HOT 1 CLOSED

	if (typeof filterString != 'undefined') {
		this.currentFilter = filterString;
		this.localset('filter', filterString);
	}

	// if filtering is done on server-side, we are done here
	if (serverSide) return setPageIndex(0);

	// un-filter if no or empty filter set
	if (currentFilter == null || currentFilter == "") {
		if (dataUnfiltered != null) {
			data = dataUnfiltered;
			dataUnfiltered = null;
			for (var r = 0; r < getRowCount(); r++) data[r].visible = true;
			setPageIndex(0);
			tableFiltered();
		}
		return;
	}		

	var words = currentFilter.toLowerCase().split(" ");

	// work on unfiltered data
	if (dataUnfiltered != null) data = dataUnfiltered;

	var rowCount = getRowCount();
	var columnCount = typeof cols != 'undefined' ? cols.length  : getColumnCount();

	for (var r = 0; r < rowCount; r++) {
		var row = data[r];
		row.visible = true;
		var rowContent = ""; 

		// add column values
		for (var c = 0; c < columnCount; c++) {
			if (getColumnType(c) == 'boolean') continue;
			var displayValue = getDisplayValueAt(r, typeof cols != 'undefined'  ? cols[c] :  c);
			var value = getValueAt(r, typeof cols != 'undefined'  ? cols[c] : c);
			rowContent += displayValue + " " + (displayValue == value ? "" : value + " ");
		}

		// add attribute values
		for (var attributeName in row) {
			if (attributeName != "visible" && attributeName != "originalIndex" && attributeName != "columns") rowContent += row[attributeName];
		}

		// if row contents do not match one word in the filter, hide the row
		for (var i = 0; i < words.length; i++) {
			var word = words[i];
			var match = false;

			// a word starting with "!" means that we want a NON match
			var invertMatch = word.startsWith("!");
			if (invertMatch) word = word.substr(1);

			// if word is of the form "colname/attributename=value" or "colname/attributename!=value", only this column/attribute is used
			var colindex = -1;
			var attributeName = null;
			if (word.contains("!=")) {
				var parts = word.split("!=");
				colindex = getColumnIndex(parts[0]);
				if (colindex >= 0) {
					word = parts[1];
					invertMatch = !invertMatch;
				}
				else if (typeof row[parts[0]] != 'undefined') {
					attributeName = parts[0];
					word = parts[1];
					invertMatch = !invertMatch;
				}
			}
			else if (word.contains("=")) {
				var parts = word.split("=");
				colindex = getColumnIndex(parts[0]);
				if (colindex >= 0) word = parts[1];
				else if (typeof row[parts[0]] != 'undefined') {
					attributeName = parts[0];
					word = parts[1];
				}
			}

			// a word ending with "!" means that a column must match this word exactly
			if (!word.endsWith("!")) {
				if (colindex >= 0) match = (getValueAt(r, colindex) + ' ' + getDisplayValueAt(r, colindex)).trim().toLowerCase().indexOf(word) >= 0;
				else if (attributeName !== null) match = (''+getRowAttribute(r, attributeName)).trim().toLowerCase().indexOf(word) >= 0;
				else match = rowContent.toLowerCase().indexOf(word) >= 0; 
			}
			else {
				word = word.substr(0, word.length - 1);
				if (colindex >= 0) match = (''+getDisplayValueAt(r, colindex)).trim().toLowerCase() == word || (''+getValueAt(r, colindex)).trim().toLowerCase() == word; 
				else if (attributeName !== null) match = (''+getRowAttribute(r, attributeName)).trim().toLowerCase() == word; 
				else for (var c = 0; c < columnCount; c++) {
					if (getColumnType(typeof cols != 'undefined'  ? cols[c] : c) == 'boolean') continue;
					if ((''+getDisplayValueAt(r, typeof cols != 'undefined'  ? cols[c] : c)).trim().toLowerCase() == word || (''+getValueAt(r, typeof cols != 'undefined'  ? cols[c] : c)).trim().toLowerCase() == word) match = true;
				}
			}

			if (invertMatch ? match : !match) {
				data[r].visible = false;
				break;
			}
		}
	}

	// keep only visible rows in data
	dataUnfiltered = data;
	data = [];
	for (var r = 0; r < rowCount; r++) if (dataUnfiltered[r].visible) data.push(dataUnfiltered[r]);

	// refresh grid (back on first page) and callback
	setPageIndex(0);
	tableFiltered();
}