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如何：设置 Windows 窗体面板的背景

Windows 窗体 Panel 控件可以同时显示背景色和背景图像。 该 BackColor 属性设置所包含的控件的背景色，如标签和单选按钮。 如果未设置该 BackgroundImage 属性，则 BackColor 所选内容将填充整个面板。 如果设置了该 BackgroundImage 属性，图像将显示在包含的控件后面。

以编程方式设置背景

  1. 将面板 BackColor 的属性设置为类型的 System.Drawing.Color值。

    Panel1.BackColor = Color.AliceBlue

    panel1.BackColor = Color.AliceBlue;

    panel1->BackColor = Color::AliceBlue;

  2. 使用System.Drawing.Image类的FromFile方法设置面板BackgroundImage的属性。

    ' You should replace the bolded image
' in the sample below with an image of your own choosing.
Panel1.BackgroundImage = Image.FromFile _
    (System.Environment.GetFolderPath _
    (System.Environment.SpecialFolder.Personal) _
    & "\Image.gif")

    // You should replace the bolded image
// in the sample below with an image of your own choosing.
// Note the escape character used (@) when specifying the path.
panel1.BackgroundImage = Image.FromFile
   (System.Environment.GetFolderPath
   (System.Environment.SpecialFolder.Personal)
   + @"\Image.gif");

    // You should replace the bolded image
// in the sample below with an image of your own choosing.
panel1->BackgroundImage = Image::FromFile(String::Concat(
   System::Environment::GetFolderPath
   (System::Environment::SpecialFolder::Personal),
   "\\Image.gif"));

另请参阅