XElement Explicit Conversion (XElement to Nullable<Int64>)
.NET Framework 4.5
Cast the value of this XElement to a Nullable<T> of Int64.
This API is not CLS-compliant. Namespace: System.Xml.Linq
Assembly: System.Xml.Linq (in System.Xml.Linq.dll)
Parameters
- element
- Type: System.Xml.Linq.XElement
The XElement to cast to Nullable<T> of Int64.
Return Value
Type: System.Nullable<Int64>A Nullable<T> of Int64 that contains the content of this XElement.
| Exception | Condition |
|---|---|
| FormatException | The element does not contain a valid Int64 value. |
The following example creates an element with long integer content. It then retrieves the value by casting to Nullable<T> of Int64.
XElement root = new XElement("Root", new XElement("Value", 9223372036854775807) ); ulong? value = (ulong?)root.Element("Value"); Console.WriteLine("Nullable ulong: value={0}", value == null ? "null" : value.ToString());
This example produces the following output:
Nullable ulong: value=9223372036854775807
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.
