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我想創建一個支持按多列排序並將其附加到bindingNavigator的bindingSource。 我使用winforms和代碼優先的EF。創建支持來自IOrderedQueryable的高級排序的綁定源
我建設我的查詢以下列方式
DbSet<Person> dset = DBContext.People;
string Searchstr ="Smith";
string sortby ="LastName, FirstName"
var qry = (IOrderedQueryable<Person>) dset.Where(
p => p.LastName.Contains(Searchstr))
.OrderBy(sortby);
binding.datasource = dset.Local.ToBindingList(); // where binding has been dropped on form at design time.
binding.sort = sortby; // this is the line that screws up the sort order
我使用的擴展方法記錄here實現由多列的順序。