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I would like to find a way to check to see if a set of values are contained in my variable.
[Flags]
public enum Combinations
{
Type1CategoryA = 0x01, // 00000001
Type1CategoryB = 0x02, // 00000010
Type1CategoryC = 0x04, // 00000100
Type2CategoryA = 0x08, // 00001000
Type2CategoryB = 0x10, // 00010000
Type2CategoryC = 0x20, // 00100000
Type3 = 0x40 // 01000000
}
bool CheckForCategoryB(byte combinations)
{
// This is where I am making up syntax
if (combinations in [Combinations.Type1CategoryB, Combinations.Type2CategoryB])
return true;
return false;
// End made up syntax
}
I am a transplant to .NET from Delphi. This is fairly easy code to write in Delphi, but I am not sure how to do it in C#.
411
An enum is considered an integer type. So you can assign an integer to a variable with an enum type.
In C programming, an enumeration type (also called enum) is a data type that consists of integral constants. To define enums, the enum keyword is used. enum flag {const1, const2, ..., constN}; By default, const1 is 0, const2 is 1 and so on.
Enum ValuesA change in the default value of an enum member will automatically assign incremental values to the other members sequentially. You can even assign different values to each member. The enum can be of any numeric data type such as byte, sbyte, short, ushort, int, uint, long, or ulong.
Enumeration (or enum) is a user defined data type in C. It is mainly used to assign names to integral constants, the names make a program easy to read and maintain.
If you mean "at least one of the flags":
return (combinations
& (byte)( Combinations.Type1CategoryB | Combinations.Type2CategoryB)) != 0;
also - if you declare it as Combinations combinations (rather than byte), you can drop the (byte)
bool CheckForCategoryC(Combinations combinations)
{
return (combinations & (Combinations.Type1CategoryB | Combinations.Type2CategoryB) ) != 0;
}
If you mean "exactly one of", I would just use a switch or if etc.
154
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