C# Guid TryParseExact

Description

Guid TryParseExact converts the string representation of a GUID to the equivalent Guid structure, provided that the string is in the specified format.

Syntax

Guid.TryParseExact has the following syntax.

public static bool TryParseExact(
  string input,/*ww  w  .  j a va2s. c om*/
  string format,
  out Guid result
)

Parameters

Guid.TryParseExact has the following parameters.

• input - The GUID to convert.
• format - One of the following specifiers that indicates the exact format to use when interpreting input: "N", "D", "B", "P", or "X".
• result - The structure that will contain the parsed value. If the method returns true, result contains a valid Guid. If the method returns false, result equals Guid.Empty.

Returns

Guid.TryParseExact method returns true if the parse operation was successful; otherwise, false.

Example

The following example calls the ToString(String) method with each of the supported format specifiers to generate an array of strings that represent a single GUID.

using System;/*from ww  w  .ja va  2 s  .c om*/

public class Example
{
   public static void Main()
   {
      string[] formats = { "N", "D", "B", "P", "X" };
      Guid guid = Guid.NewGuid();

      string[] stringGuids = new string[formats.Length];
      for (int ctr = 0; ctr < formats.Length; ctr++)
         stringGuids[ctr] = guid.ToString(formats[ctr]);

      foreach (var stringGuid in stringGuids) {
         Guid newGuid;
         if (Guid.TryParseExact(stringGuid, "B", out newGuid))
            Console.WriteLine("Successfully parsed {0}", stringGuid);
         else 
            Console.WriteLine("Unable to parse '{0}'", stringGuid);
      }     
   }
}

The code above generates the following result.