DataGridCell.GetHashCode-Methode

Ruft einen Hashwert ab, der einer Hashtable hinzugefügt werden kann.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

Syntax

'Declaration
Public Overrides Function GetHashCode As Integer
'Usage
Dim instance As DataGridCell
Dim returnValue As Integer

returnValue = instance.GetHashCode

public override int GetHashCode ()

public:
virtual int GetHashCode () override

public int GetHashCode ()

public override function GetHashCode () : int

Rückgabewert

Eine Zahl, die die DataGridCell in einer Hashtable eindeutig bezeichnet.

Beispiel

Im folgenden Beispiel wird der Hashwert der ausgewählten Zelle in einem System.Windows.Forms.DataGrid-Steuerelement einer Hashtable hinzugefügt.

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
      

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:
   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.get_CurrentCell();
    String tempkey = myCell.ToString();
    Console.WriteLine("Temp " + tempkey);
    if (myHashTable.Contains(tempkey)) {
        return ;
    }
    myHashTable.Add((System.String)tempkey, 
        (System.Int32)myCell.GetHashCode());
    Console.WriteLine("Hashcode: "
        + System.Convert.ToString(myCell.GetHashCode()));
} //Grid_MouseUp

Plattformen

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile für Pocket PC, Windows Mobile für Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

.NET Compact Framework

Unterstützt in: 2.0, 1.0

Siehe auch

Referenz

DataGridCell-Struktur
DataGridCell-Member
System.Windows.Forms-Namespace
DataGrid.CurrentCell-Eigenschaft
DataGrid-Klasse