Convert.ToString Method (Int32, Int32)
Converts the value of a 32-bit signed integer to its equivalent string representation in a specified base.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
- Type: System.Int32
The 32-bit signed integer to convert.
- toBase
- Type: System.Int32
The base of the return value, which must be 2, 8, 10, or 16.
| Exception | Condition |
|---|---|
| ArgumentException | toBase is not 2, 8, 10, or 16. |
If value is positive and toBase is 2, 8, or 16, the returned string uses sign-and-magnitude representation. If value is negative and toBase is 2, 8, or 16, the returned string uses two's complement representation. This means that the high-order bit of the highest-order byte (bit 31) is interpreted as the sign bit. If the ToString(Int32, Int32) method is called to create a string that will later be converted back to a number, a corresponding method that assumes a similar numeric representation should be called to perform the conversion. Such methods include Convert.ToInt32(String, Int32) and Int32.Parse(String, NumberStyles).
The following example converts each element in an integer array to its equivalent binary, hexadecimal, decimal, and hexadecimal string representations.
int[] bases = { 2, 8, 10, 16}; int[] numbers = { Int32.MinValue, -19327543, -13621, -18, 12, 19142, Int32.MaxValue }; foreach (int baseValue in bases) { Console.WriteLine("Base {0} conversion:", baseValue); foreach (int number in numbers) { Console.WriteLine(" {0,-15} --> 0x{1}", number, Convert.ToString(number, baseValue)); } } // The example displays the following output: // Base 2 conversion: // -2147483648 --> 0x10000000000000000000000000000000 // -19327543 --> 0x11111110110110010001010111001001 // -13621 --> 0x11111111111111111100101011001011 // -18 --> 0x11111111111111111111111111101110 // 12 --> 0x1100 // 19142 --> 0x100101011000110 // 2147483647 --> 0x1111111111111111111111111111111 // Base 8 conversion: // -2147483648 --> 0x20000000000 // -19327543 --> 0x37666212711 // -13621 --> 0x37777745313 // -18 --> 0x37777777756 // 12 --> 0x14 // 19142 --> 0x45306 // 2147483647 --> 0x17777777777 // Base 10 conversion: // -2147483648 --> 0x-2147483648 // -19327543 --> 0x-19327543 // -13621 --> 0x-13621 // -18 --> 0x-18 // 12 --> 0x12 // 19142 --> 0x19142 // 2147483647 --> 0x2147483647 // Base 16 conversion: // -2147483648 --> 0x80000000 // -19327543 --> 0xfed915c9 // -13621 --> 0xffffcacb // -18 --> 0xffffffee // 12 --> 0xc // 19142 --> 0x4ac6 // 2147483647 --> 0x7fffffff
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
