C# UInt64 TryParse(String, UInt64)

Description

UInt64 TryParse(String, UInt64) tries to convert the string representation of a number to its 64-bit unsigned integer equivalent. A return value indicates whether the conversion succeeded or failed.

Syntax

UInt64.TryParse(String, UInt64) has the following syntax.

[CLSCompliantAttribute(false)]/*  w ww. ja v a 2 s  . c  om*/
public static bool TryParse(
  string s,
  out ulong result
)

Parameters

UInt64.TryParse(String, UInt64) has the following parameters.

• s - A string that represents the number to convert.
• result - When this method returns, contains the 64-bit unsigned integer value that is equivalent to the number contained in s, if the conversion succeeded, or zero if the conversion failed. The conversion fails if the s parameter is null or String.Empty, is not of the correct format, or represents a number less than UInt64.MinValue or greater than MaxValue. This parameter is passed uninitialized.

Returns

UInt64.TryParse(String, UInt64) method returns true if s was converted successfully; otherwise, false.

Example

The following example calls the TryParse(String, UInt64) method once for each element in a string array.

/*w  ww .  jav a2 s .  c  om*/
using System;
public class MainClass{
  public static void Main(String[] argv){  
    string[] numericStrings = { "1234.8", "+1234.7", "23423.", 
                                "   23423423  ", "(0)", "-0", "+1234234", 
                                "18-", "123423", "31,234", "  2342344 ",  
                                "00723400" };
    ulong number;
    foreach (string numericString in numericStrings)
    {
       if (UInt64.TryParse(numericString, out number)) 
          Console.WriteLine("Converted '{0}' to {1}.", numericString, number);
       else
          Console.WriteLine("Cannot convert '{0}' to a UInt64.", numericString);
    }

  }
}
    

The code above generates the following result.