how can i give Id of my selected tag in c# this is my code:

Options = new SelectList(_db.CityUserTable, nameof(CityUserTable.CityID), nameof(CityUserTable.CityName));
            Options.First(x => x.Value == user.CityID.ToString()).Selected = true;

CodePudding user response：

You have it backwards. You're setting the property Selected true where CityId matches. Instead you need to get the CityId where Selected is true.

Options.FirstOrDefault(x => x.Selected)?.CityId

Use ? after FirstOrDefault to ensure a selected match was found before accessing CityId.

CodePudding user response：

god bless you it work with this code

Options.FirstOrDefault(x => x.Selected).Value)