Decimal.ToInt32() Method in C#

30 Jan, 2019
This method is used to convert the value of the specified Decimal to the equivalent 32-bit signed integer. A user can also convert a Decimal value to a 32-bit integer by using the Explicit assignment operator.
Syntax: public static int ToInt32 (decimal value);
Here, the value is the decimal number which is to be converted.
Return Value: It returns a 32-bit signed integer equivalent to the specified value.
Exception: This method will give OverflowException if the specified value is less than MinValue or greater than MaxValue.
Below programs illustrate the use of the above-discussed method:
Example 1:
// C# program to demonstrate the// Decimal.ToInt32(Decimal) Methodusing System;  class GFG {      // Main Method    public static void Main()    {        try {              // Taking decimal variables            Decimal dec1 = 2147483647M;            Decimal dec2 = 21458565.2996m;              // using Decimal.ToInt32(Decimal) Method            // Here int means Int32            int val1 = Decimal.ToInt32(dec1);                          // using Decimal.ToInt32(Decimal) Method            // Here int means Int32            int val2 = Decimal.ToInt32(dec2);                            // Printing the Int32 value            Console.WriteLine("The Int32 value "                            + "is : {0}", val1);                                              // Printing the Int32 value            Console.WriteLine("The Int32 value "                            + "is : {0}", val2);                                  }          catch (OverflowException e)         {            Console.Write("Exception Thrown: ");            Console.Write("{0}", e.GetType(), e.Message);        }    }}
The Int32 value is : 2147483647
The Int32 value is : 21458565

Example 2: For OverflowException
// C# program to demonstrate the// Decimal.ToInt32(Decimal) Methodusing System;  class GFG {      // Main Method    public static void Main()    {        try {              // Taking decimal variables            // taking a decimal number             // above the range of Int32            Decimal dec1 = 2147483648M;                          // Taking the maximum value             // of Decimal            Decimal dec2 = Decimal.MaxValue;              // using Decimal.ToInt32(Decimal) Method            // Here int means Int32            // It will give error as decimal number             // is above the range of Int32            int val1 = Decimal.ToInt32(dec1);                          // using Decimal.ToInt32(Decimal) Method            // Here int means Int32            // It will give error as Decimal.MaxValue            // value is out of range from Int32            int val2 = Decimal.ToInt32(dec2);                            // Printing the Int32 value            Console.WriteLine("The Int32 value "                            + "is : {0}", val1);                                              // Printing the Int32 value            Console.WriteLine("The Int32 value "                            + "is : {0}", val2);                                  }          catch (OverflowException e)         {            Console.Write("Exception Thrown: ");            Console.Write("{0}", e.GetType(), e.Message);        }    }}
Exception Thrown: System.OverflowException

Reference:
https://docs.microsoft.com/en-us/dotnet/api/system.decimal.toint32?view=netframework-4.7.2
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