将ObsevableCollection User
DataSource 作为 Details 放置在新表单上,它会创建所有文本框、BindingSource 和 BindingNavigator。这是优秀和快速的。
因为我只需要更新一个用户,所以我删除了 BindingNavigator。但...
这可以不转换列表吗?
class UserDt : Forms {
// Designer partial part
this.userBindingSource.DataSource = typeof(WinFormswithEFSample.User);
private void UserDt_Load
{
_context.Users.Load();
// use this with BindNavigator to navigate ower all users
//this.userBindingSource.DataSource = _context.Users.Local.ToBindingList();
// this doesn't work
//this.userBindingSource.DataSource = _context.Users.Where(p => p.Username == "admin").Local.ToBindingList();
var query = _context.Users.Where(p => p.Username == "admin").ToList();
var binding = new BindingList<User>(query);
this.usersBindingSource.DataSource = binding;
}
}