CheckedListBox.SelectionMode Eigenschap

public:
 virtual property System::Windows::Forms::SelectionMode SelectionMode { System::Windows::Forms::SelectionMode get(); void set(System::Windows::Forms::SelectionMode value); };

public override System.Windows.Forms.SelectionMode SelectionMode { get; set; }

member this.SelectionMode : System.Windows.Forms.SelectionMode with get, set

Public Overrides Property SelectionMode As SelectionMode

Waarde van eigenschap

One De waarde of None waarde van SelectionMode.

Uitzonderingen

Voorbeelden

In het volgende codevoorbeeld ziet u hoe u een CheckedListBox besturingselement initialiseert door in SelectionMode te stellen dat één item in de lijst moet worden geselecteerd.

Als u het voorbeeld wilt uitvoeren, plakt u de volgende code in een formulier met een CheckedListBox benoemde naam CheckedListBox1 en roept u de methode aan vanuit de InitializeCheckListBox constructor of de methode Laden van het formulier.

   // This method initializes CheckedListBox1 with a list of all 
   // the controls on the form. It sets the selection mode
   // to single selection and allows selection with a single click.
   // It adds itself to the list before adding itself to the form.
internal:
   System::Windows::Forms::CheckedListBox^ CheckedListBox1;

private:
   void InitializeCheckedListBox()
   {
      this->CheckedListBox1 = gcnew CheckedListBox;
      this->CheckedListBox1->Location = System::Drawing::Point( 40, 90 );
      this->CheckedListBox1->CheckOnClick = true;
      this->CheckedListBox1->Name = "CheckedListBox1";
      this->CheckedListBox1->Size = System::Drawing::Size( 120, 94 );
      this->CheckedListBox1->TabIndex = 1;
      this->CheckedListBox1->SelectionMode = SelectionMode::One;
      this->CheckedListBox1->ThreeDCheckBoxes = true;
      System::Collections::IEnumerator^ myEnum = this->Controls->GetEnumerator();
      while ( myEnum->MoveNext() )
      {
         Control^ aControl = safe_cast<Control^>(myEnum->Current);
         this->CheckedListBox1->Items->Add( aControl, false );
      }

      this->CheckedListBox1->DisplayMember = "Name";
      this->CheckedListBox1->Items->Add( CheckedListBox1 );
      this->Controls->Add( this->CheckedListBox1 );
   }

// This method initializes CheckedListBox1 with a list of all 
// the controls on the form. It sets the selection mode
// to single selection and allows selection with a single click.
// It adds itself to the list before adding itself to the form.

internal System.Windows.Forms.CheckedListBox CheckedListBox1;

private void InitializeCheckedListBox()
{
    this.CheckedListBox1 = new CheckedListBox();
    this.CheckedListBox1.Location = new System.Drawing.Point(40, 90);
    this.CheckedListBox1.CheckOnClick = true;
    this.CheckedListBox1.Name = "CheckedListBox1";
    this.CheckedListBox1.Size = new System.Drawing.Size(120, 94);
    this.CheckedListBox1.TabIndex = 1;
    this.CheckedListBox1.SelectionMode = SelectionMode.One;
    this.CheckedListBox1.ThreeDCheckBoxes = true;

    foreach ( Control aControl in this.Controls )
    {
        this.CheckedListBox1.Items.Add(aControl, false);
    }

    this.CheckedListBox1.DisplayMember = "Name";
    this.CheckedListBox1.Items.Add(CheckedListBox1);
    this.Controls.Add(this.CheckedListBox1);
}

' This method initializes CheckedListBox1 with a list of all the controls
' on the form. It sets the selection mode to single selection and
' allows selection with a single click. It adds itself to the list before 
' adding itself to the form.
Friend WithEvents CheckedListBox1 As System.Windows.Forms.CheckedListBox

Private Sub InitializeCheckedListBox()
    Me.CheckedListBox1 = New CheckedListBox
    Me.CheckedListBox1.Location = New System.Drawing.Point(40, 90)
    Me.CheckedListBox1.CheckOnClick = True
    Me.CheckedListBox1.Name = "CheckedListBox1"
    Me.CheckedListBox1.Size = New System.Drawing.Size(120, 94)
    Me.CheckedListBox1.TabIndex = 1
    Me.CheckedListBox1.SelectionMode = SelectionMode.One
    Me.CheckedListBox1.ThreeDCheckBoxes = True

    Dim aControl As Control
    For Each aControl In Me.Controls
        Me.CheckedListBox1.Items.Add(aControl, False)
    Next

    Me.CheckedListBox1.DisplayMember = "Name"
    Me.CheckedListBox1.Items.Add(CheckedListBox1)
    Me.Controls.Add(Me.CheckedListBox1)
End Sub

Opmerkingen

De SelectionMode eigenschap bepaalt of één item in de keuzelijst kan worden geselecteerd of dat er geen items kunnen worden geselecteerd. Voor CheckedListBox objecten wordt meerdere selecties niet ondersteund. U kunt de modus instellen op één item of geen items.

Zie ook

• SelectionMode