如果上面选择了项目，如何从GridView的LookupEdit中删除项目

Question

我有一个具有LookUpEdit的gridview。可以说，在网格的第一行中，我从LookupEdit中选择一个值。当我转到第二行时，我看不到第一行中的选定值。

这是我的网格......

＆＃34; HM-2016年4月6日-B-001＆＃34;在第一行中选中，如何在第二行删除该值？

Answer 1

首先，将DevExpress.Utils.DefaultBoolean.True属性设置为CTRL。

在这种情况下，只需按DELETE + $(function () { function draggablePlotLine(axis, plotLineId) { var clickX, clickY; var getPlotLine = function () { for (var i = 0; i < axis.plotLinesAndBands.length; i++) { if (axis.plotLinesAndBands[i].id === plotLineId) { return axis.plotLinesAndBands[i]; } } }; var getValue = function() { var plotLine = getPlotLine(); var translation = axis.horiz ? plotLine.svgElem.translateX : plotLine.svgElem.translateY; var new_value = axis.toValue(translation) - axis.toValue(0) + plotLine.options.value; new_value = Math.max(axis.min, Math.min(axis.max, new_value)); return new_value; }; var drag_start = function (e) { $(document).bind({ 'mousemove.line': drag_step, 'mouseup.line': drag_stop }); var plotLine = getPlotLine(); clickX = e.pageX - plotLine.svgElem.translateX; clickY = e.pageY - plotLine.svgElem.translateY; if (plotLine.options.onDragStart) { plotLine.options.onDragStart(getValue()); } }; var drag_step = function (e) { var plotLine = getPlotLine(); var new_translation = axis.horiz ? e.pageX - clickX : e.pageY - clickY; var new_value = axis.toValue(new_translation) - axis.toValue(0) + plotLine.options.value; new_value = Math.max(axis.min, Math.min(axis.max, new_value)); new_translation = axis.toPixels(new_value + axis.toValue(0) - plotLine.options.value); plotLine.svgElem.translate( axis.horiz ? new_translation : 0, axis.horiz ? 0 : new_translation); if (plotLine.options.onDragChange) { plotLine.options.onDragChange(new_value); } }; var drag_stop = function () { $(document).unbind('.line'); var plotLine = getPlotLine(); var plotLineOptions = plotLine.options; //Remove + Re-insert plot line //Otherwise it gets messed up when chart is resized if (plotLine.svgElem.hasOwnProperty('translateX')) { plotLineOptions.value = getValue() axis.removePlotLine(plotLineOptions.id); axis.addPlotLine(plotLineOptions); if (plotLineOptions.onDragFinish) { plotLineOptions.onDragFinish(plotLineOptions.value); } } getPlotLine().svgElem .css({'cursor': 'pointer'}) .translate(0, 0) .on('mousedown', drag_start); }; drag_stop(); }; $('#container').highcharts({ xAxis: { min: -10, max: 10, plotLines: [{ id: 'foo', color: '#00F', width: 4, value: 5, onDragStart: function (new_value) { $("#x_value").text(new_value + ' (Not changed yet)'); }, onDragChange: function (new_value) { $("#x_value").text(new_value + ' (Dragging)'); }, onDragFinish: function (new_value) { $("#x_value").text(new_value); } }] }, yAxis: { type: 'logarithmic', plotLines: [{ label: { text: 'Not draggable' }, id: 'y1', color: '#CCC', width: 4, value: 150 }, { id: 'y2', color: '#00F', width: 4, value: 200, onDragStart: function (new_value) { $("#y_value").text(new_value + ' (Not changed yet)'); }, onDragChange: function (new_value) { $("#y_value").text(new_value + ' (Dragging)'); }, onDragFinish: function (new_value) { $("#y_value").text(new_value); } }, { label: { text: 'Not draggable' }, id: 'y3', color: '#CCC', width: 4, value: 250 }] }, series: [{ data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4] }] }, function (chart) { draggablePlotLine(chart.xAxis[0], 'foo'); draggablePlotLine(chart.yAxis[0], 'y2'); console.log('ready'); }); }); 组合键即可清除该值。

由于