Func<T, TResult>

using System;

delegate string ConvertMethod(string inString);

public class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      // Instantiate delegate to reference UppercaseString method
      ConvertMethod convertMeth = UppercaseString;
      string name = "Dakota";
      // Use delegate instance to call UppercaseString method
      outputBlock.Text  = convertMeth(name)   "\n";
   }

   private static string UppercaseString(string inputString)
   {
      return inputString.ToUpper();
   }
}




using System;

public class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      // Instantiate delegate to reference UppercaseString method
      Func<string, string> convertMethod = UppercaseString;
      string name = "Dakota";
      // Use delegate instance to call UppercaseString method
      outputBlock.Text  = convertMethod(name)   "\n";
   }

   private static string UppercaseString(string inputString)
   {
      return inputString.ToUpper();
   }
}




using System;

public class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      Func<string, string> convert = delegate(string s)
         { return s.ToUpper(); };

      string name = "Dakota";
      outputBlock.Text  = convert(name)   "\n";
   }
}


using System;

public class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      Func<string, string> convert = s => s.ToUpper();

      string name = "Dakota";
      outputBlock.Text  = convert(name)   "\n";
   }
}