DataGridCell.GetHashCode Metode

Definisi

Ruang nama:

System.Windows.Forms

Rakitan:

System.Windows.Forms.dll

Mendapatkan nilai hash yang dapat ditambahkan ke Hashtable.

public:
 override int GetHashCode();

public override int GetHashCode();

override this.GetHashCode : unit -> int

Public Overrides Function GetHashCode () As Integer

Mengembalikan

Int32

Angka yang secara unik mengidentifikasi DataGridCell dalam Hashtable.

Contoh

Contoh berikut menambahkan nilai hash sel yang dipilih dalam kontrol System.Windows.Forms.DataGrid ke Hashtable.

private:
   Hashtable^ myHashTable;

public:
   Form1()
   {
      myHashTable = gcnew Hashtable;
   }

private:
   void Grid_MouseUp( Object^ sender, System::Windows::Forms::MouseEventArgs^ /*e*/ )
   {
      DataGrid^ dg = dynamic_cast<DataGrid^>(sender);
      DataGridCell myCell = dg->CurrentCell;
      String^ tempkey = myCell.ToString();
      Console::WriteLine( "Temp {0}", tempkey );
      if ( myHashTable->Contains( tempkey ) )
      {
         return;
      }
      myHashTable->Add( tempkey, myCell.GetHashCode() );
      Console::WriteLine( "Hashcode: {0}", myCell.GetHashCode() );
   }

private Hashtable myHashTable = new Hashtable();

private void Grid_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
   DataGrid dg = (DataGrid)sender;
   DataGridCell myCell = dg.CurrentCell;
   string tempkey = myCell.ToString();
   Console.WriteLine("Temp " + tempkey);
   if(myHashTable.Contains(tempkey)){return;}
   myHashTable.Add(tempkey, myCell.GetHashCode());
   Console.WriteLine("Hashcode: " + myCell.GetHashCode().ToString());
}

Private myHashTable As New Hashtable()

   Private Sub DataGrid1_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs)
       Dim dg As DataGrid = CType(sender, DataGrid)
       Dim myCell As DataGridCell = dg.CurrentCell
       Dim tempkey As String = myCell.ToString
       Console.WriteLine("Temp " & tempkey)
       If myHashTable.Contains(tempkey) Then Exit Sub
       myHashTable.Add(tempkey, myCell.GetHashCode)
       Console.WriteLine("Hashcode: " & myCell.GetHashCode.ToString)
   End Sub

Lihat juga

• CurrentCell
• DataGrid