XmlWriter::WriteDocType Method
When overridden in a derived class, writes the DOCTYPE declaration with the specified name and optional attributes.
Namespace: System.Xml
Assembly: System.Xml (in System.Xml.dll)
public: virtual void WriteDocType( String^ name, String^ pubid, String^ sysid, String^ subset ) abstract
Parameters
- name
- Type: System::String
The name of the DOCTYPE. This must be non-empty.
- pubid
- Type: System::String
If non-null it also writes PUBLIC "pubid" "sysid" where pubid and sysid are replaced with the value of the given arguments.
- sysid
- Type: System::String
If pubid is nullptr and sysid is non-null it writes SYSTEM "sysid" where sysid is replaced with the value of this argument.
- subset
- Type: System::String
If non-null it writes [subset] where subset is replaced with the value of this argument.
| Exception | Condition |
|---|---|
| InvalidOperationException | This method was called outside the prolog (after the root element). |
| ArgumentException | The value for name would result in invalid XML. |
| InvalidOperationException | An XmlWriter 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 does not check for invalid characters in pubid, sysid or subset. It also does not check that the internal subset is well-formed.
.gif?cs-save-lang=1&cs-lang=cpp "Security note") Security Note |
|---|
The XmlWriter does not validate the data that is passed to the WriteDocType method. You should not pass arbitrary data to this method. |
For the asynchronous version of this method, see WriteDocTypeAsync.
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.
