ToolStripItem.ForeColor 属性
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
获取或设置项的前景色。
public:
virtual property System::Drawing::Color ForeColor { System::Drawing::Color get(); void set(System::Drawing::Color value); };
public virtual System.Drawing.Color ForeColor { get; set; }
member this.ForeColor : System.Drawing.Color with get, set
Public Overridable Property ForeColor As Color
属性值
项的前景 Color。 默认为 DefaultForeColor 属性的值。
示例
下面的代码示例演示如何使用 ForeColor 属性进行自定义呈现。 此代码示例是为类提供的大型示例的 ToolStripItem 一部分。
// This method defines the painting behavior of the control.
// It performs the following operations:
//
// Computes the layout of the item's image and text.
// Draws the item's background image.
// Draws the item's image.
// Draws the item's text.
//
// Drawing operations are implemented in the
// RolloverItemRenderer class.
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
if (this.Owner != null)
{
// Find the dimensions of the image and the text
// areas of the item.
this.ComputeImageAndTextLayout();
// Draw the background. This includes drawing a highlighted
// border when the mouse is in the client area.
ToolStripItemRenderEventArgs ea = new ToolStripItemRenderEventArgs(
e.Graphics,
this);
this.Owner.Renderer.DrawItemBackground(ea);
// Draw the item's image.
ToolStripItemImageRenderEventArgs irea =
new ToolStripItemImageRenderEventArgs(
e.Graphics,
this,
imageRect );
this.Owner.Renderer.DrawItemImage(irea);
// If the item is on a drop-down, give its
// text a different highlighted color.
Color highlightColor =
this.IsOnDropDown ?
Color.Salmon : SystemColors.ControlLightLight;
// Draw the text, and highlight it if the
// the rollover state is true.
ToolStripItemTextRenderEventArgs rea =
new ToolStripItemTextRenderEventArgs(
e.Graphics,
this,
base.Text,
textRect,
this.rolloverValue ? highlightColor : base.ForeColor,
base.Font,
base.TextAlign);
this.Owner.Renderer.DrawItemText(rea);
}
}
' This method defines the painting behavior of the control.
' It performs the following operations:
'
' Computes the layout of the item's image and text.
' Draws the item's background image.
' Draws the item's image.
' Draws the item's text.
'
' Drawing operations are implemented in the
' RolloverItemRenderer class.
Protected Overrides Sub OnPaint(e As PaintEventArgs)
MyBase.OnPaint(e)
If (Me.Owner IsNot Nothing) Then
' Find the dimensions of the image and the text
' areas of the item.
Me.ComputeImageAndTextLayout()
' Draw the background. This includes drawing a highlighted
' border when the mouse is in the client area.
Dim ea As New ToolStripItemRenderEventArgs(e.Graphics, Me)
Me.Owner.Renderer.DrawItemBackground(ea)
' Draw the item's image.
Dim irea As New ToolStripItemImageRenderEventArgs(e.Graphics, Me, imageRect)
Me.Owner.Renderer.DrawItemImage(irea)
' If the item is on a drop-down, give its
' text a different highlighted color.
Dim highlightColor As Color = CType(IIf(Me.IsOnDropDown, Color.Salmon, SystemColors.ControlLightLight), Color)
' Draw the text, and highlight it if the
' the rollover state is true.
Dim rea As New ToolStripItemTextRenderEventArgs( _
e.Graphics, _
Me, _
MyBase.Text, _
textRect, _
CType(IIf(Me.rolloverValue, highlightColor, MyBase.ForeColor), Color), _
MyBase.Font, _
MyBase.TextAlign)
Me.Owner.Renderer.DrawItemText(rea)
End If
End Sub