![](/img/trans.png)
[英]Kendo UI treeList calling controller action multiple times on expanding node?
[英]Kendo Treelist Export Issue
演示之后: https : //demos.telerik.com/aspnet-mvc/treelist/excel-export
我们正在尝试在剑道树列表中实现excel导出。 问题是,下载时,excel文件没有数据,只有列标题。
<%: Html.Kendo().TreeList<A.Models.ExportModel>()
.Name("treelist")
.Columns(columns =>
{
columns.Add().Field(e => e.ACTIVITY).Title("Activity").Width(400);
})
.Toolbar(tools => tools.Excel())
.Excel(excel => excel.FileName("TreeListExport.xlsx").ProxyURL(Url.Action("Excel_Export_Save")))
.DataSource(dataSource => dataSource
.Read(read => read.Action("getActivityData", "ExportActivity"))
.ServerOperation(false)
.Model(m => {
m.Id(f => f.PK);
m.ParentId(f => f.PA);
m.Expanded(true);
m.Field(f => f.ACTIVITY);
})
)
.Height(540)
%>
[HttpPost]
public ActionResult Excel_Export_Save(string contentType, string base64, string fileName)
{
var fileContents = Convert.FromBase64String(base64);
return File(fileContents, contentType, fileName);
}
我们该如何解决呢?
我刚遇到这个。 您需要拦截Excel导出事件并编写JavaScript,以将值压缩为表中所需的值。
.Toolbar(tools => tools.Excel())
.Excel(excel => excel.FileName("LocationHierarchy.xlsx").ProxyURL(Url.Action("ExcelExportSave")))
.Events(events => events.ExcelExport("onExcelExport"))
听起来您已经知道ExcelExportSave()方法需要做什么,所以我不会介绍它。
这样声明您的JavaScript方法:
// groom the exported values
function onExcelExport(e) {
var workbook = e.workbook;
var i = 0;
// loop through all the worksheets
for (i = 0; i < workbook.sheets.length; ++i) {
// iterate over all the rows, skipping the first since it is just the column headings
var j = 0;
for (j = 1; j < workbook.sheets[i].rows.length; ++j) {
var thisRow = workbook.sheets[i].rows[j];
// iterate over all the cells
for (k = 0; k < thisRow.cells.length; ++k) {
var cellData = thisRow.cells[k];
var cellValue = cellData.value;
// do your special stuff so your values show up like you want
// this often just requires digging into an object and getting the correct member value
// slap the value in cellData.value to make them appear in the Excel spreadsheet
cellData.value = myCoolNewValue;
}
}
}
}
而已。 这样,您导出的Excel就很漂亮。
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