DataContext.ChangeConflicts 屬性

定義

命名空間:

System.Data.Linq

組件:

System.Data.Linq.dll

取得當呼叫 SubmitChanges() 時，會導致並行存取衝突的物件集合。

public:
 property System::Data::Linq::ChangeConflictCollection ^ ChangeConflicts { System::Data::Linq::ChangeConflictCollection ^ get(); };

public System.Data.Linq.ChangeConflictCollection ChangeConflicts { get; }

member this.ChangeConflicts : System.Data.Linq.ChangeConflictCollection

Public ReadOnly Property ChangeConflicts As ChangeConflictCollection

屬性值

ChangeConflictCollection

導致並行存取衝突之物件的集合。

範例

Northwnd db = new Northwnd("...");

try
{
    db.SubmitChanges(ConflictMode.ContinueOnConflict);
}

catch (ChangeConflictException e)
{
    Console.WriteLine("Optimistic concurrency error.");
    Console.WriteLine(e.Message);
    foreach (ObjectChangeConflict occ in db.ChangeConflicts)
    {
        MetaTable metatable = db.Mapping.GetTable(occ.Object.GetType());
        Customer entityInConflict = (Customer)occ.Object;
        Console.WriteLine("Table name: {0}", metatable.TableName);
        Console.Write("Customer ID: ");
        Console.WriteLine(entityInConflict.CustomerID);
        Console.ReadLine();
    }
}

Dim db As New Northwnd("...")

Try
    db.SubmitChanges(ConflictMode.ContinueOnConflict)

Catch ex As ChangeConflictException
    Console.WriteLine("Optimistic concurrency error.")
    Console.WriteLine(ex.Message)
    For Each occ As ObjectChangeConflict In db.ChangeConflicts
        Dim metatable As MetaTable = db.Mapping.GetTable(occ.Object.GetType())
        Dim entityInConflict = occ.Object

        Console.WriteLine("Table name: " & metatable.TableName)
        Console.Write("Customer ID: ")
        Console.WriteLine(entityInConflict.CustomerID)
        Console.ReadLine()
    Next
End Try

備註

下列範例示範如何逐一查看集合以擷取衝突資訊。