HOW TO：設定 Windows Form 面板的背景

Windows Form Panel 控制項可顯示背景色彩和背景影像。 BackColor 屬性設定被收納的控制項 (Contained Control) 之背景色彩，如標籤 (Label) 和選項按鈕。 如果 BackgroundImage 屬性未設定，則選取的 BackColor 會填滿整個面板。 如果設定了 BackgroundImage 屬性，則影像會顯示在被收納的控制項之後。

若要以程式設計的方式來設定背景

1. 設定面板的 BackColor 屬性為 System.Drawing.Color 型別的值。

   Panel1.BackColor = Color.AliceBlue
   

   panel1.BackColor = Color.AliceBlue;
   

   panel1->BackColor = Color::AliceBlue;
   

2. 使用 System.Drawing.Image 類別的 FromFile 方法，設定面板的 BackgroundImage 屬性。

   ' 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"));
   

請參閱

參考

Panel 控制項概觀 (Windows Form)

BackColor

BackgroundImage

其他資源

Panel 控制項 (Windows Form)