Convert.ToUInt32 Method (Single)

Converts the value of the specified single-precision floating-point number to an equivalent 32-bit unsigned integer.

This API is not CLS-compliant. 

Namespace:  System
Assemblies:   System.Runtime.Extensions (in System.Runtime.Extensions.dll)
  mscorlib (in mscorlib.dll)

[CLSCompliantAttribute(false)]
public static uint ToUInt32(
	float value
)

Parameters

value
Type: System.Single

The single-precision floating-point number to convert.

Return Value

Type: System.UInt32
value, rounded to the nearest 32-bit unsigned integer. If value is halfway between two whole numbers, the even number is returned; that is, 4.5 is converted to 4, and 5.5 is converted to 6.

ExceptionCondition
OverflowException

value is less than zero or greater than UInt32.MaxValue.

The following example attempts to convert each element in an array of Single values to an unsigned integer.

float[] values= { Single.MinValue, -1.38e10f, -1023.299f, -12.98f,
                  0f, 9.113e-16f, 103.919f, 17834.191f, Single.MaxValue };
uint result;

foreach (float value in values)
{
   try {
      result = Convert.ToUInt32(value);
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        value.GetType().Name, value, 
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.",
                        value.GetType().Name, value);
   }   
}                                 
// The example displays the following output: 
//    The Single value -3.402823E+38 is outside the range of the UInt32 type. 
//    The Single value -1.38E+10 is outside the range of the UInt32 type. 
//    The Single value -1023.299 is outside the range of the UInt32 type. 
//    The Single value -12.98 is outside the range of the UInt32 type. 
//    Converted the Single value 0 to the UInt32 value 0. 
//    Converted the Single value 9.113E-16 to the UInt32 value 0. 
//    Converted the Single value 103.919 to the UInt32 value 104. 
//    Converted the Single value 17834.19 to the UInt32 value 17834. 
//    The Single value 3.402823E+38 is outside the range of the UInt32 type.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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