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Showing content from https://learn.microsoft.com/dotnet/api/system.int32.maxvalue below:

Int32.MaxValue Field (System) | Microsoft Learn

Int32.MaxValue Field Definition

Represents the largest possible value of an Int32. This field is constant.

public: int MaxValue = 2147483647;

public const int MaxValue = 2147483647;

val mutable MaxValue : int

Public Const MaxValue As Integer  = 2147483647

Field ValueValue = 2147483647 Examples

The following example uses the MaxValue property to prevent an OverflowException when converting to an Int32 value.

using System;

public class Class1
{
   public static void Main()
   {
      long[] numbersToConvert = { 162345, 32183, -54000, Int64.MaxValue/2 };
      int newNumber;
      foreach (long number in numbersToConvert)
      {
         if (number >= Int32.MinValue && number <= Int32.MaxValue)
         {
            newNumber = Convert.ToInt32(number);
            Console.WriteLine($"Successfully converted {newNumber} to an Int32.");
         }
         else
         {
            Console.WriteLine($"Unable to convert {number} to an Int32.");
         }
      }
   }
}
// The example displays the following output to the console:
//    Successfully converted 162345 to an Int32.
//    Successfully converted 32183 to an Int32.
//    Successfully converted -54000 to an Int32.
//    Unable to convert 4611686018427387903 to an Int32.

open System

let numbersToConvert = [ 162345L; 32183L; -54000L; Int64.MaxValue / 2L ]
for number in numbersToConvert do
    if number >= Int32.MinValue && number <= Int32.MaxValue then
        let newNumber = Convert.ToInt32 number
        printfn $"Successfully converted {newNumber} to an Int32."
    else
        printfn $"Unable to convert {number} to an Int32."
   

// The example displays the following output to the console:
//    Successfully converted 162345 to an Int32.
//    Successfully converted 32183 to an Int32.
//    Successfully converted -54000 to an Int32.
//    Unable to convert 4611686018427387903 to an Int32.

Module modMain
   Public Sub Main()
      Dim numbersToConvert() As Long = { 162345, 32183, -54000, Int64.MaxValue\2 }
      Dim newNumber As Integer
      For Each number As Long In NumbersToConvert
         If number >= Int32.MinValue And number <= Int32.MaxValue Then
            newNumber = Convert.ToInt32(number)
            Console.WriteLine("Successfully converted {0} to an Int32.", _
                              newNumber)
         Else
            Console.WriteLine("Unable to convert {0} to an Int32.", number)
         End If                     
      Next
   End Sub
End Module
' The example displays the following output to the console:
'       Successfully converted 162345 to an Int32.
'       Successfully converted 32183 to an Int32.
'       Successfully converted -54000 to an Int32.
'       Unable to convert 4611686018427387903 to an Int32.

Remarks

The value of this constant is 2,147,483,647; that is, hexadecimal 0x7FFFFFFF.