TreeView.ItemHeight TreeView.ItemHeight TreeView.ItemHeight TreeView.ItemHeight Property

Definición

Obtiene o establece el alto de cada nodo de árbol del control de vista de árbol.Gets or sets the height of each tree node in the tree view control.

public:
 property int ItemHeight { int get(); void set(int value); };
public int ItemHeight { get; set; }
member this.ItemHeight : int with get, set
Public Property ItemHeight As Integer

Valor de propiedad

Alto, en píxeles, de cada nodo de árbol de la vista de árbol.The height, in pixels, of each tree node in the tree view.

Excepciones

El valor asignado es menor que uno.The assigned value is less than one.

O bien-or- El valor asignado es mayor que el valor de MaxValue.The assigned value is greater than the MaxValue value.

Ejemplos

En el siguiente ejemplo de código se NodeFont cambia el tamaño al tamaño especificado y se ItemHeight ajusta el del control principal TreeView del nodo de árbol.The following code example changes the size NodeFont to the specified size and adjusts the ItemHeight of the tree node's parent TreeView control. Este ejemplo Form requiere que tenga un TreeView con un control con una colección de objetos TreeNode y un ComboBox que contenga tamaños de fuente.This example requires that you have a Form with a TreeView control with a collection of TreeNode objects, and a ComboBox that contains font sizes.

private:
   void Button1_Click( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      myTreeView->ItemHeight = 5;
      myTreeView->SelectedNode->NodeFont = gcnew System::Drawing::Font( "Arial",5 );
      
      // Get the font size from combobox.
      String^ selectedString = myComboBox->SelectedItem->ToString();
      int myNodeFontSize = Int32::Parse( selectedString );
      
      // Set the font of root node.
      myTreeView->SelectedNode->NodeFont = gcnew System::Drawing::Font( "Arial",(float)myNodeFontSize );
      for ( int i = 0; i < myTreeView->Nodes[ 0 ]->Nodes->Count; i++ )
      {
         
         // Set the font of child nodes.
         myTreeView->Nodes[ 0 ]->Nodes[ i ]->NodeFont = gcnew System::Drawing::Font( "Arial",(float)myNodeFontSize );

      }
      
      // Get the bounds of the tree node.
      Rectangle myRectangle = myTreeView->SelectedNode->Bounds;
      int myNodeHeight = myRectangle.Height;
      if ( myNodeHeight < myNodeFontSize )
      {
         myNodeHeight = myNodeFontSize;
      }

      myTreeView->ItemHeight = myNodeHeight + 4;
   }
private void Button1_Click(object sender,EventArgs e)
{
   myTreeView.ItemHeight = 5;
   myTreeView.SelectedNode.NodeFont = new Font("Arial",5);

   // Get the font size from combobox.
   string selectedString = myComboBox.SelectedItem.ToString();
   int myNodeFontSize = Int32.Parse(selectedString);

   // Set the font of root node.
   myTreeView.SelectedNode.NodeFont = new Font("Arial",myNodeFontSize);
   for(int i = 0; i < myTreeView.Nodes[0].Nodes.Count; i++)
   {
      // Set the font of child nodes.
      myTreeView.Nodes[0].Nodes[i].NodeFont =
        new Font("Arial",myNodeFontSize);
   }

   // Get the bounds of the tree node.
   Rectangle myRectangle = myTreeView.SelectedNode.Bounds;
   int myNodeHeight = myRectangle.Height;
   if(myNodeHeight < myNodeFontSize)
   {
      myNodeHeight = myNodeFontSize;
   }
   myTreeView.ItemHeight = myNodeHeight + 4;
}
Private Sub Button1_Click(sender As Object, e As EventArgs)
   myTreeView.ItemHeight = 5
   myTreeView.SelectedNode.NodeFont = New Font("Arial", 5)

   ' Get the font size from combobox.
   Dim selectedString As String = myComboBox.SelectedItem.ToString()
   Dim myNodeFontSize As Integer = Int32.Parse(selectedString)

   ' Set the font of root node.
   myTreeView.SelectedNode.NodeFont = New Font("Arial", myNodeFontSize)
   Dim i As Integer
   For  i = 0 To (myTreeView.Nodes(0).Nodes.Count) - 1
      ' Set the font of child nodes.
      myTreeView.Nodes(0).Nodes(i).NodeFont = New Font("Arial", _
        myNodeFontSize)
   Next i

   ' Get the bounds of the tree node.
   Dim myRectangle As Rectangle = myTreeView.SelectedNode.Bounds
   Dim myNodeHeight As Integer = myRectangle.Height
   If myNodeHeight < myNodeFontSize Then
      myNodeHeight = myNodeFontSize
   End If
   myTreeView.ItemHeight = myNodeHeight + 4
End Sub 

Comentarios

Si el alto del elemento se establece en un valor mayor que el alto del control de vista de árbol, TreeNode.EnsureVisible la llamada al método tendrá resultados inesperados.If the item height is set to a value larger than the height of the tree view control, calling the TreeNode.EnsureVisible method will have unexpected results.

Se aplica a

Consulte también: