Show hidden columns in Kendo grid excel export

Question

I have a kendo grid and I can export its data into excel file without any problem. In my grid, some columns may be hidden because they do not have any value. However, I want

Answer 1

You can have columns in an array which defines hidden: true and then simply traverse through columns array and show/hide columns just before export as following:

        function excelExport(e) {
              if (!exportFlag) {
                  for(var i=0; i < columns.length; i++) {
                      if(columns[i].hidden)
                          e.sender.showColumn(i);
                  }
                  e.preventDefault();
                  exportFlag = true;
                  setTimeout(function () {
                    e.sender.saveAsExcel();
                  });
                } else {
                    for(var i=0; i < columns.length; i++) {
                          if(columns[i].hidden)
                              e.sender.hideColumn(i);
                      }
                  exportFlag = false;
                }
      }