无数据导出报错修复

Learun.Framework.Ultimate V7/Learun.Application.Web/Views/Utility/ExcelExportForm.js

@@ -17,9 +17,21 @@ var bootstrap = function ($, learun) {
             var columnModel;
             if (iframeIndex) {
                 var currentWin = top.frames['layui-layer-iframe' + iframeIndex];
+                if (currentWin.$('#' + gridId).jfGrid()[0].dfop.rowdatas.length == 0) {
+                    learun.alert.warning("暂无数据！");
+                    var index = parent.layer.getFrameIndex(window.name); //先得到当前iframe层的索引
+                    parent.layer.close(index); //再执行关闭 
+                    return;
+                }
                 currentWin.$('#' + gridId).jfGridSet('reloadall');
                 columnModel = currentWin.$('#' + gridId).jfGridGet('settingInfo').headData;
             } else {
+                if (learun.frameTab.currentIframe().$('#' + gridId).jfGrid()[0].dfop.rowdatas.length == 0) {
+                    learun.alert.warning("暂无数据！");
+                    var index = parent.layer.getFrameIndex(window.name); //先得到当前iframe层的索引
+                    parent.layer.close(index); //再执行关闭 
+                    return;
+                }
                 learun.frameTab.currentIframe().$('#' + gridId).jfGridSet('reloadall');
                 columnModel = learun.frameTab.currentIframe().$('#' + gridId).jfGridGet('settingInfo').headData;
             }