Convert.ToInt32 Method (Double)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Converts the value of the specified double-precision floating point number to an equivalent 32-bit signed integer.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
- Type: System.Double
A double-precision floating point number.
Return Value
Type: System.Int32value rounded to the nearest 32-bit signed 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.
| Exception | Condition |
|---|---|
| OverflowException | value is greater than Int32.MaxValue or less than Int32.MinValue. |
The following code sample illustrates the conversion of a Double value to an Int32, using ToInt32.
Public Sub ConvertDoubleInt(ByVal doubleVal As Double) Dim intVal As Integer = 0 ' Double to Integer conversion can overflow. Try intVal = System.Convert.ToInt32(doubleVal) outputBlock.Text &= String.Format("{0} as an Integer is: {1}", _ doubleVal, intVal) & vbCrLf Catch exception As System.OverflowException outputBlock.Text &= String.Format( _ "Overflow in Double-to-Byte conversion.") & vbCrLf End Try ' Integer to Double conversion cannot overflow. doubleVal = System.Convert.ToDouble(intVal) outputBlock.Text &= String.Format("{0} as a Double is: {1}", _ intVal, doubleVal) & vbCrLf End Sub
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