The following code example demonstrates the System..::.ConsoleColor enumeration in conjunction with the Console..::.ForegroundColor and Console..::.BackgroundColor properties, and the Console..::.ResetColor method. You must run the example on a console to see the described color effects.
Two constants, Black and White, are used directly; then all the constants (Blue, DarkRed, and so on) are used indirectly in a loop. First, the names of the constants are obtained by using the GetNames method, which is inherited from the Enum class. Then the Enum..::.Parse method uses each name to create the corresponding enumerated constant.
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' This example demonstrates the ConsoleColor enumeration.
Imports System
Class Sample
Public Shared Sub Main()
Dim nl As [String] = Environment.NewLine
Dim colorNames As [String]() = ConsoleColor.GetNames(GetType(ConsoleColor))
Dim x As Integer
' ---------------------------------------------------------------------------------------
Console.WriteLine("{0}All the foreground colors on a constant black background.", nl)
Console.WriteLine(" (Black on black is not readable.){0}", nl)
For x = 0 To colorNames.Length - 1
Console.Write("{0,2}: ", x)
Console.BackgroundColor = ConsoleColor.Black
Console.ForegroundColor = CType([Enum].Parse(GetType(ConsoleColor), _
colorNames(x)), ConsoleColor)
Console.Write("This is foreground color {0}.", colorNames(x))
Console.ResetColor()
Console.WriteLine()
Next x
' ---------------------------------------------------------------------------------------
Console.WriteLine("{0}A constant white foreground on all the background colors.", nl)
Console.WriteLine(" (White on white is not readable.){0}", nl)
For x = 0 To colorNames.Length - 1
Console.Write("{0,2}: ", x)
Console.ForegroundColor = ConsoleColor.White
Console.BackgroundColor = CType([Enum].Parse(GetType(ConsoleColor), _
colorNames(x)), ConsoleColor)
Console.Write("This is background color {0}.", colorNames(x))
Console.ResetColor()
Console.WriteLine()
Next x
' ---------------------------------------------------------------------------------------
End Sub 'Main
End Class 'Sample
'
'This example produces the following results:
'
'All the foreground colors on a constant black background.
' (Black on black is not readable.)
'
' 0: This is foreground color Black.
' 1: This is foreground color DarkBlue.
' 2: This is foreground color DarkGreen.
' 3: This is foreground color DarkCyan.
' 4: This is foreground color DarkRed.
' 5: This is foreground color DarkMagenta.
' 6: This is foreground color DarkYellow.
' 7: This is foreground color Gray.
' 8: This is foreground color DarkGray.
' 9: This is foreground color Blue.
'10: This is foreground color Green.
'11: This is foreground color Cyan.
'12: This is foreground color Red.
'13: This is foreground color Magenta.
'14: This is foreground color Yellow.
'15: This is foreground color White.
'
'A constant white foreground on all the background colors.
' (White on white is not readable.)
'
' 0: This is background color Black.
' 1: This is background color DarkBlue.
' 2: This is background color DarkGreen.
' 3: This is background color DarkCyan.
' 4: This is background color DarkRed.
' 5: This is background color DarkMagenta.
' 6: This is background color DarkYellow.
' 7: This is background color Gray.
' 8: This is background color DarkGray.
' 9: This is background color Blue.
'10: This is background color Green.
'11: This is background color Cyan.
'12: This is background color Red.
'13: This is background color Magenta.
'14: This is background color Yellow.
'15: This is background color White.
'
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// This example demonstrates the ConsoleColor enumeration.
using System;
class Sample
{
public static void Main()
{
String nl = Environment.NewLine;
String[] colorNames = ConsoleColor.GetNames(typeof(ConsoleColor));
// ---------------------------------------------------------------------------------------
Console.WriteLine("{0}All the foreground colors on a constant black background.", nl);
Console.WriteLine(" (Black on black is not readable.){0}", nl);
for (int x = 0; x < colorNames.Length; x++)
{
Console.Write("{0,2}: ", x);
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = (ConsoleColor)Enum.Parse(typeof(ConsoleColor), colorNames[x]);
Console.Write("This is foreground color {0}.", colorNames[x]);
Console.ResetColor();
Console.WriteLine();
}
// ---------------------------------------------------------------------------------------
Console.WriteLine("{0}A constant white foreground on all the background colors.", nl);
Console.WriteLine(" (White on white is not readable.){0}", nl);
for (int x = 0; x < colorNames.Length; x++)
{
Console.Write("{0,2}: ", x);
Console.ForegroundColor = ConsoleColor.White;
Console.BackgroundColor = (ConsoleColor)Enum.Parse(typeof(ConsoleColor), colorNames[x]);
Console.Write("This is background color {0}.", colorNames[x]);
Console.ResetColor();
Console.WriteLine();
}
// ---------------------------------------------------------------------------------------
}
}
/*
This example produces the following results:
All the foreground colors on a constant black background.
(Black on black is not readable.)
0: This is foreground color Black.
1: This is foreground color DarkBlue.
2: This is foreground color DarkGreen.
3: This is foreground color DarkCyan.
4: This is foreground color DarkRed.
5: This is foreground color DarkMagenta.
6: This is foreground color DarkYellow.
7: This is foreground color Gray.
8: This is foreground color DarkGray.
9: This is foreground color Blue.
10: This is foreground color Green.
11: This is foreground color Cyan.
12: This is foreground color Red.
13: This is foreground color Magenta.
14: This is foreground color Yellow.
15: This is foreground color White.
A constant white foreground on all the background colors.
(White on white is not readable.)
0: This is background color Black.
1: This is background color DarkBlue.
2: This is background color DarkGreen.
3: This is background color DarkCyan.
4: This is background color DarkRed.
5: This is background color DarkMagenta.
6: This is background color DarkYellow.
7: This is background color Gray.
8: This is background color DarkGray.
9: This is background color Blue.
10: This is background color Green.
11: This is background color Cyan.
12: This is background color Red.
13: This is background color Magenta.
14: This is background color Yellow.
15: This is background color White.
*/
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// This example demonstrates the ConsoleColor enumeration.
using namespace System;
int main()
{
String^ nl = Environment::NewLine;
array<String^>^colorNames = Enum::GetNames( ConsoleColor::typeid );
// ---------------------------------------------------------------------------------------
Console::WriteLine( "{0}All the foreground colors on a constant black background.", nl );
Console::WriteLine( " (Black on black is not readable.){0}", nl );
for ( int x = 0; x < colorNames->Length; x++ )
{
Console::Write( "{0,2}: ", x );
Console::BackgroundColor = ConsoleColor::Black;
Console::ForegroundColor = *dynamic_cast<ConsoleColor^>(Enum::Parse( ConsoleColor::typeid, colorNames[ x ] ));
Console::Write( "This is foreground color {0}.", colorNames[ x ] );
Console::ResetColor();
Console::WriteLine();
}
Console::WriteLine( "{0}A constant white foreground on all the background colors.", nl );
Console::WriteLine( " (White on white is not readable.){0}", nl );
for ( int x = 0; x < colorNames->Length; x++ )
{
Console::Write( "{0,2}: ", x );
Console::ForegroundColor = ConsoleColor::White;
Console::BackgroundColor = *dynamic_cast<ConsoleColor^>(Enum::Parse( ConsoleColor::typeid, colorNames[ x ] ));
Console::Write( "This is background color {0}.", colorNames[ x ] );
Console::ResetColor();
Console::WriteLine();
}
}
/*
This example produces the following results:
All the foreground colors on a constant black background.
(Black on black is not readable.)
0: This is foreground color Black.
1: This is foreground color DarkBlue.
2: This is foreground color DarkGreen.
3: This is foreground color DarkCyan.
4: This is foreground color DarkRed.
5: This is foreground color DarkMagenta.
6: This is foreground color DarkYellow.
7: This is foreground color Gray.
8: This is foreground color DarkGray.
9: This is foreground color Blue.
10: This is foreground color Green.
11: This is foreground color Cyan.
12: This is foreground color Red.
13: This is foreground color Magenta.
14: This is foreground color Yellow.
15: This is foreground color White.
A constant white foreground on all the background colors.
(White on white is not readable.)
0: This is background color Black.
1: This is background color DarkBlue.
2: This is background color DarkGreen.
3: This is background color DarkCyan.
4: This is background color DarkRed.
5: This is background color DarkMagenta.
6: This is background color DarkYellow.
7: This is background color Gray.
8: This is background color DarkGray.
9: This is background color Blue.
10: This is background color Green.
11: This is background color Cyan.
12: This is background color Red.
13: This is background color Magenta.
14: This is background color Yellow.
15: This is background color White.
*/
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// This example demonstrates the ConsoleColor enumeration.
import System.*;
class Sample
{
public static void main(String[] args)
{
String nl = Environment.get_NewLine();
String colorNames[] = ConsoleColor.GetNames(ConsoleColor.class.ToType());
// ----------------------------------------------------------------------
Console.WriteLine("{0}All the foreground colors on a constant black "
+ " background.", nl);
Console.WriteLine(" (Black on black is not readable.){0}", nl);
for (int x = 0; x < colorNames.get_Length(); x++) {
Console.Write("{0,2}: ", System.Convert.ToString(x));
Console.set_BackgroundColor(ConsoleColor.Black);
Console.set_ForegroundColor(((ConsoleColor)(Enum.Parse(
ConsoleColor.class.ToType(), System.Convert.ToString(
colorNames.get_Item(x))))));
Console.Write("This is foreground color {0}.",
colorNames.get_Item(x));
Console.ResetColor();
Console.WriteLine();
}
// ----------------------------------------------------------------------
Console.WriteLine("{0}A constant white foreground on all the "
+ "background colors.", nl);
Console.WriteLine(" (White on white is not readable.){0}", nl);
for (int x = 0; x < colorNames.get_Length(); x++) {
Console.Write("{0,2}: ", System.Convert.ToString(x));
Console.set_ForegroundColor(ConsoleColor.White);
Console.set_BackgroundColor(((ConsoleColor)(Enum.Parse(
ConsoleColor.class.ToType(),
System.Convert.ToString(colorNames.get_Item(x))))));
Console.Write("This is background color {0}.",
colorNames.get_Item(x));
Console.ResetColor();
Console.WriteLine();
}
// ----------------------------------------------------------------------
} //main
} //Sample
/*
This example produces the following results:
All the foreground colors on a constant black background.
(Black on black is not readable.)
0: This is foreground color Black.
1: This is foreground color DarkBlue.
2: This is foreground color DarkGreen.
3: This is foreground color DarkCyan.
4: This is foreground color DarkRed.
5: This is foreground color DarkMagenta.
6: This is foreground color DarkYellow.
7: This is foreground color Gray.
8: This is foreground color DarkGray.
9: This is foreground color Blue.
10: This is foreground color Green.
11: This is foreground color Cyan.
12: This is foreground color Red.
13: This is foreground color Magenta.
14: This is foreground color Yellow.
15: This is foreground color White.
A constant white foreground on all the background colors.
(White on white is not readable.)
0: This is background color Black.
1: This is background color DarkBlue.
2: This is background color DarkGreen.
3: This is background color DarkCyan.
4: This is background color DarkRed.
5: This is background color DarkMagenta.
6: This is background color DarkYellow.
7: This is background color Gray.
8: This is background color DarkGray.
9: This is background color Blue.
10: This is background color Green.
11: This is background color Cyan.
12: This is background color Red.
13: This is background color Magenta.
14: This is background color Yellow.
15: This is background color White.
*/
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