TreeView.HideSelection Propriété

public:
 property bool HideSelection { bool get(); void set(bool value); };

public bool HideSelection { get; set; }

member this.HideSelection : bool with get, set

Public Property HideSelection As Boolean

Valeur de propriété

true si le nœud d'arbre sélectionné n'est pas affiché en surbrillance lorsque l'arborescence a perdu le focus ; sinon, false. La valeur par défaut est true.

Exemples

L’exemple de code suivant montre comment utiliser la HideSelection propriété . Pour exécuter cet exemple, collez le code suivant dans un formulaire et appelez la InitializeSelectedTreeView méthode dans le constructeur ou Load le gestionnaire d’événements du formulaire.

System::Windows::Forms::TreeView^ TreeView2;

// Initialize the TreeView to blend with the form, giving it the 
// same color as the form and no border.
void InitializeSelectedTreeView()
{
   
   // Create a new TreeView control and set the location and size.
   this->TreeView2 = gcnew System::Windows::Forms::TreeView;
   this->TreeView2->Location = System::Drawing::Point( 72, 48 );
   this->TreeView2->Size = System::Drawing::Size( 200, 200 );
   this->TreeView2->BorderStyle = BorderStyle::Fixed3D;
   
   // Set the HideSelection property to false to keep the 
   // selection highlighted when the user leaves the control. 
   this->TreeView1->HideSelection = false;
   
   // Add the nodes.
   array<TreeNode^>^temp0 = {gcnew TreeNode( "Full Color" ),gcnew TreeNode( "Project Wizards" ),gcnew TreeNode( "Visual C# and Visual Basic Support" )};
   array<TreeNode^>^temp1 = {gcnew TreeNode( "Pentium 133 MHz or faster processor " ),gcnew TreeNode( "Windows 98 or later" ),gcnew TreeNode( "100 MB Disk space" )};
   array<TreeNode^>^temp2 = {gcnew TreeNode( "Features",temp0 ),gcnew TreeNode( "System Requirements",temp1 )};
   this->TreeView1->Nodes->AddRange( temp2 );
   
   // Set the tab index and add the TreeView to the form.
   this->TreeView1->TabIndex = 0;
   this->Controls->Add( this->TreeView1 );
}

// Declare the TreeView control.
internal System.Windows.Forms.TreeView TreeView2;

// Initialize the TreeView to blend with the form, giving it the 
// same color as the form and no border.
private void InitializeSelectedTreeView()
{

    // Create a new TreeView control and set the location and size.
    this.TreeView2 = new System.Windows.Forms.TreeView();
    this.TreeView2.Location = new System.Drawing.Point(72, 48);
    this.TreeView2.Size = new System.Drawing.Size(200, 200);

    this.TreeView2.BorderStyle = BorderStyle.Fixed3D;
    
    // Set the HideSelection property to false to keep the 
    // selection highlighted when the user leaves the control. 
    // This helps it blend with form.
    this.TreeView2.HideSelection = false;

    // Add the nodes.
    this.TreeView2.Nodes.AddRange(new TreeNode[]
        {new TreeNode("Features", 
            new TreeNode[]{
            new TreeNode("Full Color"), 
            new TreeNode("Project Wizards"), 
            new TreeNode("Visual C# and Visual Basic Support")}), 
            new TreeNode("System Requirements", 
            new TreeNode[]{
                new TreeNode("Pentium 133 MHz or faster processor "),
                new TreeNode("Windows 98 or later"), 
                new TreeNode("100 MB Disk space")})
        });

    // Set the tab index and add the TreeView to the form.
    this.TreeView2.TabIndex = 0;
    this.Controls.Add(this.TreeView2);
}

' Declare the TreeView control.
Friend WithEvents TreeView2 As System.Windows.Forms.TreeView

' Initialize the TreeView to blend with the form, giving it the 
' same color as the form and no border.
Private Sub InitializeSelectedTreeView()

    ' Create a new TreeView control and set the location and size.
    Me.TreeView2 = New System.Windows.Forms.TreeView
    Me.TreeView2.Location = New System.Drawing.Point(72, 48)
    Me.TreeView2.Size = New System.Drawing.Size(200, 200)
    Me.TreeView2.BorderStyle = BorderStyle.Fixed3D
   
    ' Set the HideSelection property to false to keep the 
    ' selection highlighted when the user leaves the control. 
    Me.TreeView2.HideSelection = False

    ' Add the nodes.
    Me.TreeView2.Nodes.AddRange(New System.Windows.Forms.TreeNode() _
        {New System.Windows.Forms.TreeNode("Features", _
        New System.Windows.Forms.TreeNode() _
        {New System.Windows.Forms.TreeNode("Full Color"), _
        New System.Windows.Forms.TreeNode("Project Wizards"), _
        New System.Windows.Forms.TreeNode("Visual C# and Visual Basic Support")}), _
        New System.Windows.Forms.TreeNode("System Requirements", _
        New System.Windows.Forms.TreeNode() _
        {New System.Windows.Forms.TreeNode _
        ("Pentium 133 MHz or faster processor "), _
        New System.Windows.Forms.TreeNode("Windows 98 or later"), _
        New System.Windows.Forms.TreeNode("100 MB Disk space")})})

    ' Set the tab index and add the TreeView to the form.
    Me.TreeView2.TabIndex = 0
    Me.Controls.Add(Me.TreeView2)
End Sub

Remarques

Lorsque cette propriété est définie sur false, les nœuds sélectionnés dans le TreeView contrôle restent mis en surbrillance dans une couleur différente de la couleur de sélection actuelle lorsque le contrôle perd le TreeView focus. Vous pouvez utiliser cette propriété pour garder visibles les éléments sélectionnés par l’utilisateur lorsque l’utilisateur clique sur un autre contrôle sur le formulaire ou se déplace vers une autre fenêtre.

S’applique à

Voir aussi

• SelectedNode