Reader. Read Content AsLong Method
Reads the text content at the current position as a 64-bit signed integer.
public: virtual long ReadContentAsLong();
public virtual long ReadContentAsLong ();
abstract member ReadContentAsLong : unit -> int64 override this.ReadContentAsLong : unit -> int64
Public Overridable Function ReadContentAsLong () As Long
The text content as a 64-bit signed integer.
The attempted cast is not valid.
The string format is not valid.
An XmlReader method was called before a previous asynchronous operation finished. In this case, InvalidOperationException is thrown with the message "An asynchronous operation is already in progress."
This method concatenates text, white space, significant white space, and CDATA sections, and skips any comments or processing instructions. Entity references are automatically resolved.
If the content is typed
xsd:long, the reader returns an unboxed 64-bit signed integer. If the content is not typed
xsd:long, the reader attempts to convert it to a 64-bit signed integer according to the rules defined by the W3C XML Schema Part 2: Datatypes recommendation.
The following table describes this method treats each node type.
|XmlNodeType||Return value||Reader behavior|
||Concatenated content of text, CDATA, white space and significant white space nodes converted to the requested type.||Moves to the next start element or end element tag. Entity references are automatically expanded.|
||The reader remains in the current position|
||Ignores the processing instruction (PI) or comment and reads the concatenated text content that follows the PI or comment.||Moves to the next start element or end element tag. Entity references are automatically expanded.|
||An empty string.||The reader remains in the current position.|
||An InvalidOperationException is thrown.||Undefined, although typically the reader remains in the current position.|
For more information, see the Remarks section of the XmlReader reference page.