BindingManagerBase.Position Properti

Definisi

Ruang nama:

System.Windows.Forms

Rakitan:

System.Windows.Forms.dll

Saat ditimpa di kelas turunan, mendapatkan atau mengatur posisi dalam daftar dasar yang mengontrol terikat ke titik sumber data ini.

public:
 abstract property int Position { int get(); void set(int value); };

public abstract int Position { get; set; }

member this.Position : int with get, set

Public MustOverride Property Position As Integer

Nilai Properti

Int32

Indeks berbasis nol yang menentukan posisi dalam daftar yang mendasar.

Contoh

Contoh kode berikut menunjukkan empat metode yang mengatur Position properti . Metode ini MoveNext menaikkan properti sebesar 1. Metode MovePrevious ini mengurangi properti sebesar 1. Metode MoveFirst mengatur properti ke 0, dan MoveLast metode mengatur properti ke nilai Count properti dikurangi 1.

private:
   void BindingManagerBase_CurrentChanged( Object^ sender, EventArgs^ /*e*/ )
   {
      // Print the new value of the current object.
      Console::Write( "Current Changed: " );
      Console::WriteLine( ( (BindingManagerBase^)(sender) )->Current );
   }

   void MoveNext()
   {
      // Increment the Position property value by one.
      myBindingManagerBase->Position = myBindingManagerBase->Position + 1;
   }

   void MovePrevious()
   {
      // Decrement the Position property value by one.
      myBindingManagerBase->Position = myBindingManagerBase->Position - 1;
   }

   void MoveFirst()
   {
      // Go to the first item in the list.
      myBindingManagerBase->Position = 0;
   }

   void MoveLast()
   {
      // Go to the last row in the list.
      myBindingManagerBase->Position = myBindingManagerBase->Count - 1;
   }

private void BindingManagerBase_CurrentChanged
(object sender, EventArgs e)
{
   // Print the new value of the current object.
   Console.Write("Current Changed: ");
   Console.WriteLine(((BindingManagerBase)sender).Current);
}

private void MoveNext()
{
   // Increment the Position property value by one.
   myBindingManagerBase.Position += 1;
}

private void MovePrevious()
{
   // Decrement the Position property value by one.
   myBindingManagerBase.Position -= 1;
}

private void MoveFirst()
{
   // Go to the first item in the list.
   myBindingManagerBase.Position = 0;
}

private void MoveLast()
{
   // Go to the last row in the list.
   myBindingManagerBase.Position = 
   myBindingManagerBase.Count - 1;
}

Private Sub BindingManagerBase_CurrentChanged(sender As Object, e As EventArgs)
    ' Print the new value of the current object.
    Console.Write("Current Changed: ")
    Console.WriteLine(CType(sender, BindingManagerBase).Current)
End Sub


Private Sub MoveNext()
    ' Increment the Position property value by one.
    myBindingManagerBase.Position += 1
End Sub


Private Sub MovePrevious()
    ' Decrement the Position property value by one.
    myBindingManagerBase.Position -= 1
End Sub


Private Sub MoveFirst()
    ' Go to the first item in the list.
    myBindingManagerBase.Position = 0
End Sub


Private Sub MoveLast()
    ' Go to the last row in the list.
    myBindingManagerBase.Position = myBindingManagerBase.Count - 1
End Sub

Keterangan

Position Gunakan properti untuk melakukan iterasi melalui daftar mendasar yang dikelola oleh BindingManagerBase. Untuk masuk ke item pertama, atur ke Position 0. Untuk masuk ke akhir daftar, atur Position ke nilai Count properti dikurangi 1.

Peristiwa PositionChanged terjadi ketika Position nilai properti berubah.

Lihat juga

• PositionChanged
• Current
• Count