---
title: "Convert Class in C#"  
description: "In this blog I am trying to explain the concept of Convert Class in C#.Convert ClassConvert class returns a type whose value is equivalent to the valu"  
author: "Vijay Shukla"  
published: 2013-06-13  
updated: 2014-09-18  
canonical: https://www.mindstick.com/blog/528/convert-class-in-c-sharp  
category: "c#"  
tags: ["c#"]  
reading_time: 3 minutes  

---

# Convert Class in C#

In this blog I [am trying](https://answers.mindstick.com/qa/36834/which-two-programming-languages-should-i-master-in-if-i-am-trying-to-get-into-google-or-facebook) to [explain the concept](https://www.mindstick.com/forum/159605/explain-the-concept-of-unique-key-violation-error) of Convert [Class in C#](https://www.mindstick.com/forum/160399/how-to-create-a-custom-generic-class-in-c-sharp-provide-an-example).

Convert Class

Convert class returns a type whose value is equivalent to the value of a specified type. The supported base types are Boolean, Char, SByte, Byte, Int16, Int32, Int64, UInt16, UInt32, UInt64, Single, Double, Decimal, [DateTime](https://www.mindstick.com/forum/12949/how-to-validate-if-a-datetime-field-is-not-null-empty) and String.

A [conversion](https://www.mindstick.com/forum/1734/conversion-from-32-bit-integer-to-4-chars) method exists to convert every base type to every other base type. However, the actual call to a particular conversion method can produce one of four [outcomes](https://answers.mindstick.com/qa/100303/causes-outcomes-of-the-french-revolution), depending on the value of the base type at run time and the target base type. These four outcomes are:

· No conversion. This occurs when an attempt is made to convert from a type to itself (for example, by calling Convert.ToInt32(Int32) with an argument of type Int32). In this case, the method simply returns an [instance](https://www.mindstick.com/forum/1739/object-reference-is-not-set-to-an-instance-of-an-object-error-in-my-code) of the original type.

· An [InvalidCastException](https://www.mindstick.com/forum/160528/sqlcommand-parameter-is-throwing-invalidcastexception-in-ado-dot-net). This occurs when a particular conversion is not supported. An InvalidCastException is thrown for the following conversions:

o Conversions from Char to Boolean, Single, Double, Decimal, or DateTime.

o Conversions from Boolean, Single, Double, Decimal, or DateTime to Char.

o Conversions from DateTime to any other type except String.

o Conversions from any other type, except String, to DateTime.

· A successful conversion. For conversions between two different base types not listed in the [previous](https://yourviews.mindstick.com/view/81421/unlock-2-0-is-just-like-previous-corona-lockdowns) outcomes, all widening conversions [as well as](https://www.mindstick.com/interview/2481/can-you-write-a-java-class-that-could-be-used-both-as-an-applet-as-well-as-an-application) all narrowing conversions that do not result in a loss of data will succeed and the method will return a value of the targeted base type.

· An OverflowException. This occurs when a narrowing conversion results in a loss of data. For example, trying to convert a Int32 instance whose value is 10000 to a Byte type throws an OverflowException because 10000 is outside the range of the Byte data type.

##### Code Example

```
// Sample for the Convert class summary.  using System;

  class ConvertorClass

  {

  public static void Main()

  {

  bool xBool = true;

  short xShort = 1;

  int xInt = 2;

  long xLong = 3;

 float xSingle = 4.0f;

 double xDouble = 5.0;

 decimal xDecimal = 6.0m;

 string xString = "7";

 char xChar = '8'; // '8' = hexadecimal 38 = decimal 56

 byte xByte = 9;

 //  The following types are not CLS-compliant.

 ushort xUshort = 120;

 uint xUint = 121;

 ulong xUlong = 122;

 sbyte xSbyte = 123;

 Console.WriteLine("Boolean:  {0}", Convert.ToInt64(xBool));

 Console.WriteLine("Int16:    {0}", Convert.ToInt64(xShort));

 Console.WriteLine("Int32:    {0}", Convert.ToInt64(xInt));

 Console.WriteLine("Int64:    {0}", Convert.ToInt64(xLong));

 Console.WriteLine("Single:   {0}", Convert.ToInt64(xSingle));

 Console.WriteLine("Double:   {0}", Convert.ToInt64(xDouble));

 Console.WriteLine("Decimal:  {0}", Convert.ToInt64(xDecimal));

 Console.WriteLine("String:   {0}", Convert.ToInt64(xString));

 Console.WriteLine("Char:     {0}", Convert.ToInt64(xChar));

 Console.WriteLine("Byte:     {0}", Convert.ToInt64(xByte));

 Console.WriteLine("DateTime: There is no example of this conversion because");

 Console.WriteLine("  a DateTime cannot be converted to an Int64.");

 Console.WriteLine("The following types are not CLS-compliant.\n");

 Console.WriteLine("UInt16:   {0}", Convert.ToInt64(xUshort));

 Console.WriteLine("UInt32:   {0}", Convert.ToInt64(xUint));

 Console.WriteLine("UInt64:   {0}", Convert.ToInt64(xUlong));

 Console.WriteLine("SByte:    {0}", Convert.ToInt64(xSbyte));

 Console.ReadKey();

 }

 }
```

##### Note: - The DateTime type cannot be converted to an Int64. (DateTime

##### xDateTime = DateTime.Now;)

##### Code description:

##### 1. Using System (include the System namespace).

##### 2. Create a Convertor class.

##### 4. Start Mani method.

##### 6. to 20. Create all types of variable with its initial value.

##### \
21. to 37. Show all variable value with covert into ToInt64(means integer

##### \
vale with 64 bit) .

##### Output:-

![Convert Class in C#](https://www.mindstick.com/blogs/80c34820-ad66-4858-9276-90853924b3eb/images/9c709791-2bfb-4bce-af17-cecd0dd37bc9.png)

---

Original Source: https://www.mindstick.com/blog/528/convert-class-in-c-sharp

Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.