What is the use of conditional...

The conditional preprocessor directives in C# allow you to selectively compile code based on specified conditions. The main directives are:

• #if: Compiles code if the specified symbol is defined[1][3][4]
• #elif: Closes the preceding #if and opens a new conditional compilation based on a different symbol[3][4]
• #else: Compiles code if the preceding #if and #elif conditions are false[3][4]
• #endif: Closes the preceding #if directive[3][4]

You can use these directives to:

1. Compile different code for different platforms or configurations

   • Define symbols for each platform or configuration
   • Use #if to include or exclude code based on the defined symbols[1][2]

2. Temporarily disable sections of code during debugging

   • Define a symbol like DEBUG
   • Use #if DEBUG to include debug code that is excluded in release builds[2][4]

3. Maintain multiple versions of an application in the same codebase

   • Define symbols for each version
   • Use #if t...