TreeNode.ForeColor Eigenschaft

Definition

Ruft die Vordergrundfarbe des Strukturknotens ab oder legt diese fest.Gets or sets the foreground color of the tree node.

public:
 property System::Drawing::Color ForeColor { System::Drawing::Color get(); void set(System::Drawing::Color value); };
public System.Drawing.Color ForeColor { get; set; }
member this.ForeColor : System.Drawing.Color with get, set
Public Property ForeColor As Color

Eigenschaftswert

Die Color für den Vordergrund des Strukturknotens.The foreground Color of the tree node.

Beispiele

Im folgenden Codebeispiel wird ein Stamm Struktur Knoten erstellt, dem untergeordnete Struktur Knoten zugewiesen werden.The following code example creates a root tree node to assign child tree nodes to. Ein untergeordneter Struktur Knoten für Customer jedes Objekt in ArrayList einer wird dem Stamm Struktur Knoten sowie einem untergeordneten Struktur Knoten für jedes Order Objekt, das dem Customer Objekt zugewiesen ist, hinzugefügt.A child tree node for each Customer object in an ArrayList is added to the root tree node as well as a child tree node for each Order object assigned to the Customer object. Das Customer -Objekt wird der Tag -Eigenschaft zugewiesen, und die Struktur Knoten Customer , die-Objekte Orange darstellen, werden mit Text angezeigt.The Customer object is assigned to the Tag property, and the tree nodes representing Customer objects are displayed with Orange text. Customer customerArray Form ArrayList Order FürdiesesTreeView Beispiel ist es erforderlich, dass Sie ein-Objekt und ein-Objekt definiert haben, ein-Steuerelement für ein-Objekt und ein -ObjektmitCustomerThis example requires that you have a Customer and Order object defined, a TreeView control on a Form, and an ArrayList named customerArray that contains Customer objects.

ref class Customer
{
public:
   ArrayList^ CustomerOrders;
   String^ CustomerName;
   Customer( String^ myName )
   {
      CustomerName = myName;
      CustomerOrders = gcnew ArrayList;
   }

};

ref class Order
{
public:
   String^ OrderID;
   Order( String^ myOrderID )
   {
      this->OrderID = myOrderID;
   }

};


   void AddRootNodes()
   {
      
      // Add a root node to assign the customer nodes to.
      TreeNode^ rootNode = gcnew TreeNode;
      rootNode->Text = "CustomerList";
      
      // Add a main root treenode.
      myTreeView->Nodes->Add( rootNode );
      
      // Add a root treenode for each 'Customer' object in the ArrayList.
      IEnumerator^ myEnum = customerArray->GetEnumerator();
      while ( myEnum->MoveNext() )
      {
         Customer^ myCustomer = safe_cast<Customer^>(myEnum->Current);
         
         // Add a child treenode for each Order object.
         int i = 0;
         array<TreeNode^>^myTreeNodeArray = gcnew array<TreeNode^>(5);
         IEnumerator^ myEnum = myCustomer->CustomerOrders->GetEnumerator();
         while ( myEnum->MoveNext() )
         {
            Order^ myOrder = safe_cast<Order^>(myEnum->Current);
            myTreeNodeArray[ i ] = gcnew TreeNode( myOrder->OrderID );
            i++;
         }
         TreeNode^ customerNode = gcnew TreeNode( myCustomer->CustomerName,myTreeNodeArray );
         
         // Display the customer names with and Orange font.
         customerNode->ForeColor = Color::Orange;
         
         // Store the Customer Object* in the Tag property of the TreeNode.
         customerNode->Tag = myCustomer;
         myTreeView->Nodes[ 0 ]->Nodes->Add( customerNode );
      }
   }
public class Customer
{
   public ArrayList CustomerOrders;
   public string CustomerName;
   public Customer(string myName)
   {
      CustomerName = myName;
      CustomerOrders = new ArrayList(); 
   }
}
public class Order
{
   public string OrderID;
   public Order(string myOrderID )
   {
      this.OrderID = myOrderID;
   }
}

public void AddRootNodes()
{
   // Add a root node to assign the customer nodes to.
   TreeNode rootNode = new TreeNode();
   rootNode.Text = "CustomerList";
   // Add a main root treenode.
   myTreeView.Nodes.Add(rootNode);

   // Add a root treenode for each 'Customer' object in the ArrayList.
   foreach(Customer myCustomer in customerArray)
   {
      // Add a child treenode for each Order object.
      int i = 0;
      TreeNode[] myTreeNodeArray = new TreeNode[5];
      foreach(Order myOrder in myCustomer.CustomerOrders)
      {
         myTreeNodeArray[i] = new TreeNode(myOrder.OrderID);
         i++;
      }
      TreeNode customerNode = new TreeNode(myCustomer.CustomerName,
        myTreeNodeArray);
        // Display the customer names with and Orange font.
        customerNode.ForeColor = Color.Orange;
        // Store the Customer object in the Tag property of the TreeNode.
        customerNode.Tag = myCustomer;
      myTreeView.Nodes[0].Nodes.Add(customerNode);
   }
}
Public Class Customer
   Public CustomerOrders As ArrayList
   Public CustomerName As String
   Public Sub New(myName As String)
      CustomerName = myName
      CustomerOrders = New ArrayList()
   End Sub
End Class

Public Class Order
   Public OrderID As String
   Public Sub New(myOrderID As String)
      Me.OrderID = myOrderID
   End Sub
End Class

Public Sub AddRootNodes()
   ' Add a root node to assign the customer nodes to.
   Dim rootNode As TreeNode
   rootNode = New TreeNode()
   rootNode.Text = "CustomerList"
   ' Add a main root treenode.
   myTreeView.Nodes.Add(rootNode)

   ' Add a root treenode for each Customer object in the ArrayList.
   Dim myCustomer As Customer
   For Each myCustomer In customerArray
      ' Add a child treenode for each Order object.
      Dim i As Integer = 0
      Dim myTreeNodeArray(4) As TreeNode
      Dim myOrder As Order
      For Each myOrder In  myCustomer.CustomerOrders
         myTreeNodeArray(i) = New TreeNode(myOrder.OrderID)
         i += 1
      Next myOrder
      Dim customerNode As New TreeNode(myCustomer.CustomerName, _
        myTreeNodeArray)
      ' Display the customer names with and Orange font.
      customerNode.ForeColor = Color.Orange
      ' Store the Customer object in the Tag property of the TreeNode.
      customerNode.Tag = myCustomer
      myTreeView.Nodes(0).Nodes.Add(customerNode)
   Next myCustomer
End Sub

Hinweise

Wenn null, ist Color der ForeColor verwendeteTreeView der Eigenschafts Wert des Steuer Elements, dem der Struktur Knoten zugewiesen ist.If null, the Color used is the ForeColor property value of the TreeView control that the tree node is assigned to.

Gilt für:

Siehe auch