func init
	// adds using namespace
	sys.add_use('System.ComponentModel')

	if(isdef("DataGrid"))
		warning(this.name + ' - manager does not defined')
	else
		this.grid = sys.get_undef_manager("DataGrid")
		if(linked("onError"))
			this.setfield('ex', 'ex' + this.id)
		end
	end
end

func doSort(data)
	if(len(this.grid))
		linked("onError") ? blk.println('try {').inc() : ''
			blk.println(this.grid + '.Sort(', this.grid, '.Columns[', d("ColumnIndex"), '], ListSortDirection.', this.props("Direction").value, ');')
		if(linked("onError"))
			blk.dec().println('} catch(Exception ', this.ex, ') {').inc()
				event("onError", this.ex + '.Message')
			blk.dec().println('}')
		end
	end
end