如何在Acumatica中添加用于下载excel文件的按钮

Question

我正在尝试向用户维护和按钮的单击下载excel文件添加按钮,其中包含一些数据.我创建了PXAction,它的方法如上:

public PXAction<Users> getUsers;

[PXUIField(DisplayName = "Get Users", MapEnableRights = PXCacheRights.Select, MapViewRights = PXCacheRights.Select,Visible = true), PXButton(CommitChanges = true)]
public IEnumerable GetUsers(PXAdapter adapter)
{
    var accessByRoles = PXSelect<RolesInGraph>.Select(this.Base);
    var usersByRole = PXSelect<UsersInRoles>.Select(this.Base);
    var dt = GetTable();//GetTable returns some DataTable just for test now
    XLWorkbook workbook = new XLWorkbook();
    workbook.Worksheets.Add(dt, "UserAccessRigths");
    using (MemoryStream MyMemoryStream = new MemoryStream())
    {
        workbook.SaveAs(MyMemoryStream);
        HttpContext.Current.Response.Clear();
        HttpContext.Current.Response.ClearContent();
        HttpContext.Current.Response.ClearHeaders();
        HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment; filename=\"UserAccessRigths.xlsx\"");
        HttpContext.Current.Response.AppendHeader("Content-Length", MyMemoryStream.ToArray().Length.ToString());
        HttpContext.Current.Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
        HttpContext.Current.Response.BinaryWrite(MyMemoryStream.ToArray());
        HttpContext.Current.Response.Flush();
        HttpContext.Current.Response.End();
    }
    return null;
}

一切正常,但浏览器中必须开始下载的部分.我得到了excel的响应,但它没有被下载.这是我在浏览器中得到的响应:

如果有人能帮助我,我将非常感激.
提前致谢

Answer 1

尝试使用PXRedirectToFileException将用户浏览器重定向到Excel文件.主流浏览器的默认行为是通过扩展检测Excel mime类型并启动下载.PXRedirectToFileException的第二个参数用于强制下载.

throw new PXRedirectToFileException(new PX.SM.FileInfo(Guid.NewGuid(),
                                                       "UserAccessRigths.xlsx",
                                                       null,
                                                       MyMemoryStream.ToArray()),
                                    true);