c# - SaveChange 后刷新数据源不起作用

Question

我在 an 中添加数据ObjectSet并SaveChanges在ObjectContext. 但是新数据没有显示在DataGrid！

代码：

bsWork.DataSource = Program.EC.Addresses;
...
Address newAdr = new Address();
//change properties newAdr
...
Program.EC.Addresses.AddObject(newAdr);
Program.EC.SaveChanges(SaveOptions.AcceptAllChangesAfterSave);

如何刷新数据或查看新数据？

UPD：解决方案

...
bsWork.Add(newAdr);
Program.EC.SaveChanges(SaveOptions.AcceptAllChangesAfterSave);
...

Answer 1

我希望这段代码对你有帮助。

try {
    // Try to save changes, which may cause a conflict.
    int num = context.SaveChanges();
    Console.WriteLine("No conflicts. " + num.ToString() + " updates saved.");
}
catch (OptimisticConcurrencyException) {
    // Resolve the concurrency conflict by refreshing the 
    // object context before re-saving changes. 
    context.Refresh(RefreshMode.ClientWins, orders);


// Save changes.
context.SaveChanges();
Console.WriteLine("OptimisticConcurrencyException "
    + "handled and changes saved");


}