ToolStripItemRenderEventArgs.ToolStrip Property

Definition

Obtiene el valor de la propiedad Owner para la clase ToolStripItem que se va a dibujar.Gets the value of the Owner property for the ToolStripItem to paint.

public:
 property System::Windows::Forms::ToolStrip ^ ToolStrip { System::Windows::Forms::ToolStrip ^ get(); };
public System.Windows.Forms.ToolStrip ToolStrip { get; }
member this.ToolStrip : System.Windows.Forms.ToolStrip
Public ReadOnly Property ToolStrip As ToolStrip

Property Value

ToolStrip

La clase ToolStrip que es la propietaria de ToolStripItem.The ToolStrip that is the owner of the ToolStripItem.

Examples

En el ejemplo de código siguiente se muestra cómo invalidar el método OnRenderButtonBackground para dibujar un borde alrededor de la Imagede un control ToolStripButton.The following code example demonstrates how to override the OnRenderButtonBackground method to draw a border around a ToolStripButton control's Image. Este ejemplo de código forma parte de un ejemplo más extenso proporcionado para la clase ToolStripRenderer.This code example is part of a larger example provided for the ToolStripRenderer class.

// This method draws a border around the button's image. If the background
// to be rendered belongs to the empty cell, a string is drawn. Otherwise,
// a border is drawn at the edges of the button.
protected override void OnRenderButtonBackground(
    ToolStripItemRenderEventArgs e)
{
    base.OnRenderButtonBackground(e);

    // Define some local variables for convenience.
    Graphics g = e.Graphics;
    GridStrip gs = e.ToolStrip as GridStrip;
    ToolStripButton gsb = e.Item as ToolStripButton;

    // Calculate the rectangle around which the border is painted.
    Rectangle imageRectangle = new Rectangle(
        borderThickness, 
        borderThickness, 
        e.Item.Width - 2 * borderThickness, 
        e.Item.Height - 2 * borderThickness);

    // If rendering the empty cell background, draw an 
    // explanatory string, centered in the ToolStripButton.
    if (gsb == gs.EmptyCell)
    {
        e.Graphics.DrawString(
            "Drag to here",
            gsb.Font, 
            SystemBrushes.ControlDarkDark,
            imageRectangle, style);
    }
    else
    {
        // If the button can be a drag source, paint its border red.
        // otherwise, paint its border a dark color.
        Brush b = gs.IsValidDragSource(gsb) ? b = 
            Brushes.Red : SystemBrushes.ControlDarkDark;

        // Draw the top segment of the border.
        Rectangle borderSegment = new Rectangle(
            0, 
            0, 
            e.Item.Width, 
            imageRectangle.Top);
        g.FillRectangle(b, borderSegment);

        // Draw the right segment.
        borderSegment = new Rectangle(
            imageRectangle.Right,
            0,
            e.Item.Bounds.Right - imageRectangle.Right,
            imageRectangle.Bottom);
        g.FillRectangle(b, borderSegment);

        // Draw the left segment.
        borderSegment = new Rectangle(
            0,
            0,
            imageRectangle.Left,
            e.Item.Height);
        g.FillRectangle(b, borderSegment);

        // Draw the bottom segment.
        borderSegment = new Rectangle(
            0,
            imageRectangle.Bottom,
            e.Item.Width,
            e.Item.Bounds.Bottom - imageRectangle.Bottom);
        g.FillRectangle(b, borderSegment);
    }
}
  ' This method draws a border around the button's image. If the background
  ' to be rendered belongs to the empty cell, a string is drawn. Otherwise,
  ' a border is drawn at the edges of the button.
  Protected Overrides Sub OnRenderButtonBackground(e As ToolStripItemRenderEventArgs)
     MyBase.OnRenderButtonBackground(e)
     
     ' Define some local variables for convenience.
     Dim g As Graphics = e.Graphics
     Dim gs As GridStrip = e.ToolStrip 
     Dim gsb As ToolStripButton = e.Item 
     
     ' Calculate the rectangle around which the border is painted.
     Dim imageRectangle As New Rectangle(borderThickness, borderThickness, e.Item.Width - 2 * borderThickness, e.Item.Height - 2 * borderThickness)
     
     ' If rendering the empty cell background, draw an 
     ' explanatory string, centered in the ToolStripButton.
        If gsb Is gs.EmptyCell Then
            e.Graphics.DrawString("Drag to here", gsb.Font, SystemBrushes.ControlDarkDark, imageRectangle, style)
        Else
            ' If the button can be a drag source, paint its border red.
            ' otherwise, paint its border a dark color.
            Dim b As Brush = IIf(gs.IsValidDragSource(gsb), Brushes.Red, SystemBrushes.ControlDarkDark)

            ' Draw the top segment of the border.
            Dim borderSegment As New Rectangle(0, 0, e.Item.Width, imageRectangle.Top)
            g.FillRectangle(b, borderSegment)

            ' Draw the right segment.
            borderSegment = New Rectangle(imageRectangle.Right, 0, e.Item.Bounds.Right - imageRectangle.Right, imageRectangle.Bottom)
            g.FillRectangle(b, borderSegment)

            ' Draw the left segment.
            borderSegment = New Rectangle(0, 0, imageRectangle.Left, e.Item.Height)
            g.FillRectangle(b, borderSegment)

            ' Draw the bottom segment.
            borderSegment = New Rectangle(0, imageRectangle.Bottom, e.Item.Width, e.Item.Bounds.Bottom - imageRectangle.Bottom)
            g.FillRectangle(b, borderSegment)
        End If
    End Sub
End Class

Remarks

Si el ToolStripItem está en el área de desbordamiento del Form, la propiedad ToolStrip devuelve una cadena vacía.If the ToolStripItem is in the overflow area of the Form, the ToolStrip property returns an empty string.

Applies to

See also