DataGridCell.GetHashCode Método
Importante
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Obtém um valor de hash que pode ser adicionado a um Hashtable.
public:
override int GetHashCode();C#
public override int GetHashCode ();override this.GetHashCode : unit -> intPublic Overrides Function GetHashCode () As IntegerUm número que identifica exclusivamente o DataGridCell em um Hashtable.
O exemplo a seguir adiciona o valor de hash da célula selecionada em um System.Windows.Forms.DataGrid controle a um 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() );
}
C#
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
| Produto | Versões |
|---|---|
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 |
| Windows Desktop | 3.0 |