How to retrieve Enum from char value in C#?

How to retrieve Enum from char value in C#?

In C#, you can use the Enum.Parse method to convert a string representation of an enum value to the corresponding enum value. To convert a char value to an enum value, you can first convert the char to a string and then use the Enum.Parse method.

Here's an example of how to retrieve an enum value from a char value:

public enum MyEnum { ValueA = 'A', ValueB = 'B', ValueC = 'C' } char myChar = 'A'; // Convert the char to a string and then parse the string as a MyEnum value MyEnum myEnumValue = (MyEnum)Enum.Parse(typeof(MyEnum), myChar.ToString()); // Use the enum value as needed Console.WriteLine(myEnumValue); // Output: ValueA

In this example, the MyEnum enum has three values with char representations of 'A', 'B', and 'C'. The myChar variable is set to 'A'. To retrieve the corresponding MyEnum value for 'A', the myChar variable is first converted to a string using the ToString method. The Enum.Parse method is then used to parse the string as a MyEnum value.

The resulting myEnumValue variable can then be used as needed. Note that if the char value does not correspond to a valid MyEnum value, a System.ArgumentException will be thrown.

Examples

  1. "C# Enum from Char Value"

    • Code Implementation:
      char inputChar = 'A'; YourEnum resultEnum = (YourEnum)Enum.Parse(typeof(YourEnum), inputChar.ToString());
    • Description: Converts a char value to its corresponding enum using Enum.Parse.

  2. "Convert Char to Enum in C# with Switch"

    • Code Implementation:
      char inputChar = 'B'; YourEnum resultEnum; Enum.TryParse(inputChar.ToString(), out resultEnum);
    • Description: Uses Enum.TryParse to convert a char to enum with a switch-like approach.

  3. "C# Enum from Char Code"

    • Code Implementation:
      char inputChar = 'C'; YourEnum resultEnum = (YourEnum)inputChar;
    • Description: Directly casts a char to the enum assuming char codes correspond to enum values.

  4. "Convert Char to Enum in C# with LINQ"

    • Code Implementation:
      char inputChar = 'D'; YourEnum resultEnum = Enum.GetValues(typeof(YourEnum)).Cast<YourEnum>().FirstOrDefault(e => e.ToString()[0] == inputChar);
    • Description: Utilizes LINQ to find the enum with a matching first character.

  5. "Get Enum from Char in C# Using Dictionary"

    • Code Implementation:
      char inputChar = 'E'; Dictionary<char, YourEnum> charToEnumMap = new Dictionary<char, YourEnum>(); YourEnum resultEnum = charToEnumMap[inputChar];
    • Description: Creates a dictionary to map char values to corresponding enums.

  6. "C# Convert Char to Enum with Attribute"

    • Code Implementation:
      char inputChar = 'F'; YourEnum resultEnum = EnumHelper.GetEnumValueFromChar<YourEnum>(inputChar);
    • Description: Uses a custom helper method with attributes to map char values to enums.

  7. "Parse Char to Enum in C# with Validation"

    • Code Implementation:
      char inputChar = 'G'; YourEnum resultEnum; if (Enum.IsDefined(typeof(YourEnum), inputChar)) resultEnum = (YourEnum)inputChar; else // Handle invalid case
    • Description: Validates the char value before converting it to the enum.

  8. "C# Enum from Char Using Reflection"

    • Code Implementation:
      char inputChar = 'H'; YourEnum resultEnum = (YourEnum)typeof(YourEnum).GetField(inputChar.ToString()).GetValue(null);
    • Description: Retrieves the enum value using reflection based on the char.

  9. "Convert Char to Enum in C# with Enum.TryParse"

    • Code Implementation:
      char inputChar = 'I'; YourEnum resultEnum; Enum.TryParse(inputChar.ToString(), out resultEnum);
    • Description: Uses Enum.TryParse for a safe conversion from char to enum.

  10. "C# Map Char to Enum Using Attribute Mapping"

    • Code Implementation:
      char inputChar = 'J'; YourEnum resultEnum = EnumMapper.MapCharToEnum<YourEnum>(inputChar);
    • Description: Implements a custom attribute-based mapping for char to enum conversion.

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