我在我的MVC项目中执行导出到csv功能。目前,如果我在每个页面上编写代码,它可以正常工作但我想避免重复代码集中执行导出功能。
这是我的控制器代码
public ActionResult Export(string filterBy)
{
GridState gs = new GridState();
gs.Filter = filterBy;
gs.Page = 1;
gs.Size = int.MaxValue;
IEnumerable cities = City.GetAll().AsEnumerable().AsQueryable().ToGridModel(gs).Data;
MemoryStream output = new MemoryStream();
StreamWriter writer = new StreamWriter(output, Encoding.UTF8);
writer.Write("Country Name,");
writer.Write("State Name,");
writer.Write("City Name,");
writer.Write("City STD Code,");
writer.Write("Is Display");
writer.WriteLine();
foreach (CityViewModel city in cities)
{
writer.Write(city.CountryName);
writer.Write(",");
writer.Write("\"");
writer.Write(city.StateName);
writer.Write("\"");
writer.Write(",");
writer.Write("\"");
writer.Write(city.City.Name);
writer.Write("\"");
writer.Write(",");
writer.Write(city.City.STDCode);
writer.Write("\"");
writer.Write(",");
writer.Write(city.City.IsDisplay);
writer.WriteLine();
}
writer.Flush();
output.Position = 0;
return File(output, "text/comma-separated-values", "city.csv");
}
这是我的观点:
@model Telerik.Web.Mvc.GridModel<QuexstERP.BusinessCore.BusinessEntities.SysAdmin.CityViewModel>
@using Telerik.Web.Mvc.UI
@{
ViewBag.Title = "City List";
}
@(Html.Telerik().Grid(Model.Data)
.Name("Grid")
.DataKeys(keys => keys.Add(c => c.City.Id))
.ToolBar(commands => commands.Insert().ButtonType(GridButtonType.Image).ImageHtmlAttributes(new { style = "margin-left:0", title = "Add" }))
.ToolBar(commands => commands
.Custom()
.HtmlAttributes(new { id = "TestFilter", onclick = "command_onClick(this)" })
.Text("Export to csv")
.Action("Export", "City", new { filterBy = "~" }))
.DataBinding(dataBinding =>
dataBinding.Server()
.Select("Select", "City", new { GridButtonType.Text })
.Insert("Create", "City", new { GridButtonType.Text })
.Update("Save", "City", new { GridButtonType.Text })
.Delete("Delete", "City", new { GridButtonType.Text }))
.Columns(columns =>
{
columns.Command(commands =>
{
commands.Custom("Edit").Action("Edit", "City").ImageHtmlAttributes(new { @class = "t-edit" }).ButtonType(GridButtonType.Image).HtmlAttributes(new { title = "Edit", @class = "RightAlign" });
}).Width(40).Title("Edit").Visible(OperationHelper.EditOperation);
columns.Command(commands =>
{
commands.Delete().ButtonType(GridButtonType.Image).HtmlAttributes(new { title = "Delete", @class = "RightAlign" });
}).Width(40).Title("Delete").Visible(OperationHelper.DeleteOperation);
columns.Bound(p => p.CountryName).Width(200).Title("Country");
columns.Bound(p => p.StateName).Width(200).Title("State");
columns.Bound(p => p.City.Name).Width(310).Title("City");
columns.Bound(p => p.City.STDCode).Width(200).Title("STD Code");
columns.Bound(p => p.City.IsDisplay).Width(110).Title("IsDisplay");
})
.Pageable()
.Scrollable()
.Sortable()
.Filterable()
.Resizable(command => command.Columns(true))
)
@section HeadContent {
<script type="text/javascript">
function command_onClick(e) {
var grid = $('#Grid').data('tGrid');
var $cmd = $('#TestFilter');
// Get its 'href' attribute - the URL where it would navigate to
var href = $cmd.attr('href');
// Update the 'filter' parameter with the grids' current filtering state
href = href.replace(/filterBy=(.*)/, 'filterBy=' + (grid.filterBy || '~'));
// Update the 'order' parameter with the grids' current ordering state
href = href.replace(/orderBy=([^&]*)/, 'orderBy=' + (grid.orderBy || '~'));
// Update the 'page' parameter with the grids' current page
href = href.replace(/page=([^&]*)/, 'page=' + grid.currentPage);
// Update the 'href' attribute
$cmd.attr('href', href);
}
</script>
}
我想集中导出到CSV。因为我的项目中的许多形式如州,国家和国家都具有导出功能。是否可以编写一个泛型类并将参数传递给它。并导出到csv集中完成???
答案 0 :(得分:1)
我们通过在控制器方法中将数据源绑定到GridView来实现类似的功能,例如
var data = GetSomeData();
var grid = new GridView { DataSource = data };
grid.DataBind();
Response.ClearContent();
Response.AddHeader("content-disposition", "attachment; filename=MyExcel.xls");
Response.ContentType = "application/vnd.ms-excel";
var sw = new StringWriter();
var htw = new HtmlTextWriter(sw);
grid.RenderControl(htw);
Response.Write(sw.ToString());
Response.End();
这样,您只需在GridView上设置相关数据源,并在输出流中返回网格数据的转储。通过一些重构,我们能够使这个通用,它现在被我们所有的UI网格用于导出到Excel / CSV。
答案 1 :(得分:0)
仅供参考。不要将数据绑定到网格,然后将其导出到excel。它会给你
您尝试打开的文件格式与其他格式不同 由文件扩展名
指定
尝试打开Excel时出错。
我为上述问题做了这个解决方案
public static void ExportToExcel(IEnumerable<dynamic> data, string sheetName)
{
XLWorkbook wb = new XLWorkbook();
var ws = wb.Worksheets.Add(sheetName);
ws.Cell(2, 1).InsertTable(data);
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
HttpContext.Current.Response.AddHeader("content-disposition", String.Format(@"attachment;filename={0}.xlsx",sheetName.Replace(" ","_")));
using (MemoryStream memoryStream = new MemoryStream())
{
wb.SaveAs(memoryStream);
memoryStream.WriteTo(HttpContext.Current.Response.OutputStream);
memoryStream.Close();
}
HttpContext.Current.Response.End();
}
动态获取数据。使用ClosedXml所以没有错误,导出到Excel功能是应用程序的核心 希望这会对某人有所帮助。 :)