Console.BackgroundColor Eigenschaft

Definition

Ruft die Hintergrundfarbe der Konsole ab oder legt diese fest.Gets or sets the background color of the console.

public:
 static property ConsoleColor BackgroundColor { ConsoleColor get(); void set(ConsoleColor value); };
public static ConsoleColor BackgroundColor { get; set; }
member this.BackgroundColor : ConsoleColor with get, set
Public Shared Property BackgroundColor As ConsoleColor

Eigenschaftswert

Ein Wert, der die Hintergrundfarbe der Konsole, d. h. die hinter jedem Zeichen angezeigte Farbe angibt.A value that specifies the background color of the console; that is, the color that appears behind each character. Die Standardeinstellung ist schwarz.The default is black.

Ausnahmen

Die in einem Set-Vorgang angegebene Farbe ist kein gültiges Member von ConsoleColor.The color specified in a set operation is not a valid member of ConsoleColor.

Der Benutzer besitzt keine Berechtigung zum Ausführen dieser Aktion.The user does not have permission to perform this action.

E/A-FehlerAn I/O error occurred.

Beispiele

Im folgenden Beispiel werden die Werte der ConsoleColor-Enumeration in einem Array gespeichert und die aktuellen Werte der BackgroundColor und ForegroundColor Eigenschaften in Variablen gespeichert.The following example saves the values of the ConsoleColor enumeration to an array and stores the current values of the BackgroundColor and ForegroundColor properties to variables. Anschließend ändert Sie die Vordergrundfarbe in jede Farbe in der ConsoleColor Enumeration außer der Farbe, die mit dem aktuellen Hintergrund übereinstimmt, und ändert die Hintergrundfarbe in jede Farbe in der ConsoleColor Enumeration außer der Farbe, die mit dem aktuellen Vordergrund übereinstimmt.It then changes the foreground color to each color in the ConsoleColor enumeration except to the color that matches the current background, and it changes the background color to each color in the ConsoleColor enumeration except to the color that matches the current foreground. (Wenn die Vordergrundfarbe mit der Hintergrundfarbe identisch ist, ist der Text nicht sichtbar.) Zum Schluss ruft Sie die ResetColor-Methode auf, um die ursprünglichen Konsolen Farben wiederherzustellen.(If the foreground color is the same as the background color, the text isn't visible.) Finally, it calls the ResetColor method to restore the original console colors.

using System;

class Example
{
   public static void Main() 
   {
      // Get an array with the values of ConsoleColor enumeration members.
      ConsoleColor[] colors = (ConsoleColor[]) ConsoleColor.GetValues(typeof(ConsoleColor));
      // Save the current background and foreground colors.
      ConsoleColor currentBackground = Console.BackgroundColor;
      ConsoleColor currentForeground = Console.ForegroundColor;

      // Display all foreground colors except the one that matches the background.
      Console.WriteLine("All the foreground colors except {0}, the background color:",
                        currentBackground);
      foreach (var color in colors) {
         if (color == currentBackground) continue;
         
         Console.ForegroundColor = color;
         Console.WriteLine("   The foreground color is {0}.", color);
      }
      Console.WriteLine();
      // Restore the foreground color.
      Console.ForegroundColor = currentForeground;
      
      // Display each background color except the one that matches the current foreground color.
      Console.WriteLine("All the background colors except {0}, the foreground color:",
                        currentForeground);
      foreach (var color in colors) {
         if (color == currentForeground) continue;
         
         Console.BackgroundColor = color;
         Console.WriteLine("   The background color is {0}.", color);
      }
      
      // Restore the original console colors.
      Console.ResetColor();
      Console.WriteLine("\nOriginal colors restored...");
   }
}
//The example displays output like the following:
//    All the foreground colors except DarkCyan, the background color:
//       The foreground color is Black.
//       The foreground color is DarkBlue.
//       The foreground color is DarkGreen.
//       The foreground color is DarkRed.
//       The foreground color is DarkMagenta.
//       The foreground color is DarkYellow.
//       The foreground color is Gray.
//       The foreground color is DarkGray.
//       The foreground color is Blue.
//       The foreground color is Green.
//       The foreground color is Cyan.
//       The foreground color is Red.
//       The foreground color is Magenta.
//       The foreground color is Yellow.
//       The foreground color is White.
//    
//    All the background colors except White, the foreground color:
//       The background color is Black.
//       The background color is DarkBlue.
//       The background color is DarkGreen.
//       The background color is DarkCyan.
//       The background color is DarkRed.
//       The background color is DarkMagenta.
//       The background color is DarkYellow.
//       The background color is Gray.
//       The background color is DarkGray.
//       The background color is Blue.
//       The background color is Green.
//       The background color is Cyan.
//       The background color is Red.
//       The background color is Magenta.
//       The background color is Yellow.
//    
//    Original colors restored...
Public Module Example
   Public Sub Main()
      ' Get an array with the values of ConsoleColor enumeration members.
      Dim colors() As ConsoleColor = ConsoleColor.GetValues(GetType(ConsoleColor))
      ' Save the current background and foreground colors.
      Dim currentBackground As ConsoleColor = Console.BackgroundColor
      Dim currentForeground As ConsoleColor = Console.ForegroundColor
      
      ' Display all foreground colors except the one that matches the background.
      Console.WriteLine("All the foreground colors except {0}, the background color:",
                        currentBackground)
      For Each color In colors
         If color = currentBackground Then Continue For
          
         Console.ForegroundColor = color
         Console.WriteLine("   The foreground color is {0}.", color)
      Next 
      Console.WriteLine()
      
      ' Restore the foreground color.
      Console.ForegroundColor = currentForeground
      
      ' Display each background color except the one that matches the current foreground color.
      Console.WriteLine("All the background colors except {0}, the foreground color:",
                        currentForeground)
      For Each color In colors
         If color = currentForeground  then Continue For
         Console.BackgroundColor = color
         Console.WriteLine("   The background color is {0}.", color)
      Next
      ' Restore the original console colors.
      Console.ResetColor
      Console.WriteLine()
      Console.WriteLine("Original colors restored...")
   End Sub
End Module
'The example displays output like the following:
'       The background color is DarkCyan.
'       The background color is DarkRed.
'       The background color is DarkMagenta.
'       The background color is DarkYellow.
'       The background color is Gray.
'       The background color is DarkGray.
'       The background color is Blue.
'       The background color is Green.
'       The background color is Cyan.
'       The background color is Red.
'       The background color is Magenta.
'       The background color is Yellow.
'    
'    Original colors restored...

Hinweise

Eine Änderung an der BackgroundColor-Eigenschaft wirkt sich nur auf die Ausgabe aus, die nach der Änderung der Hintergrundfarbe in einzelne Zeichen Zellen geschrieben wird.A change to the BackgroundColor property affects only output that is written to individual character cells after the background color is changed. Wenn Sie die Hintergrundfarbe des Konsolenfensters als Ganzes ändern möchten, legen Sie die BackgroundColor-Eigenschaft fest, und nennen Sie die Clear-Methode.To change the background color of the console window as a whole, set the BackgroundColor property and call the Clear method. Dies wird im folgenden Beispiel veranschaulicht.The following example provides an illustration.

using System;

public class Example
{
   public static void Main()
   {
      WriteCharacterStrings(1, 26, true);
      Console.MoveBufferArea(0, Console.CursorTop - 10, 30, 1, 
                             Console.CursorLeft, Console.CursorTop + 1);
      Console.CursorTop = Console.CursorTop + 3;
      Console.WriteLine("Press any key..."); 
      Console.ReadKey();

      Console.Clear();
      WriteCharacterStrings(1, 26, false);
   }

   private static void WriteCharacterStrings(int start, int end, 
                                             bool changeColor)
   {                                             
      for (int ctr = start; ctr <= end; ctr++) {
         if (changeColor)
            Console.BackgroundColor = (ConsoleColor) ((ctr - 1) % 16);

         Console.WriteLine(new String(Convert.ToChar(ctr + 64), 30));
      }   
   }
}
Module Example
   Public Sub Main()
      WriteCharacterStrings(1, 26, True)
      Console.MoveBufferArea(0, Console.CursorTop - 10, 30, 1, Console.CursorLeft, Console.CursorTop + 1)
      Console.CursorTop = Console.CursorTop + 3
      Console.WriteLine("Press any key...") : Console.ReadKey()

      Console.Clear()
      WriteCharacterStrings(1, 26, False)
   End Sub
   
   Private Sub WriteCharacterStrings(start As Integer, _end As Integer, 
                                     changeColor As Boolean)
      For ctr As Integer = start To _end
         If changeColor Then
            Console.BackgroundColor = CType((ctr - 1) Mod 16, ConsoleColor)
         End If      
         Console.WriteLine(New String(Convert.ToChar(ctr + 64), 30))
      Next   
   End Sub
End Module

Ein Get-Vorgang für eine Windows-basierte Anwendung, in der keine Konsole vorhanden ist, gibt ConsoleColor.Blackzurück.A get operation for a Windows-based application, in which a console does not exist, returns ConsoleColor.Black.

Gilt für: