AxHost.GetOADateFromTime Method (DateTime)


Returns an OLE Automation date that corresponds to the specified DateTime structure.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

protected static double GetOADateFromTime(
	DateTime time


Type: System.DateTime

The DateTime structure to translate.

Return Value

Type: System.Double

A double-precision floating-point number that contains an OLE Automation date equivalent to specified time value.

Exception Condition

The value of this instance cannot be represented as an OLE Automation Date.

An OLE Automation date is implemented as a floating-point number whose value is the number of days from midnight, 30 December 1899. For example, midnight, 31 December 1899 is represented by 1.0; 6 A.M., 1 January 1900 is represented by 2.25; midnight, 29 December 1899 is represented by -1.0; and 6 A.M., 29 December 1899 is represented by -1.25.

The base OLE Automation Date is midnight, 30 December 1899. The maximum OLE Automation Date is the same as MaxValue, the last moment of 31 December 9999.

For more information about OLE Automation, see the MSDN Library.

.NET Framework
Available since 1.1
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