XmlReader::GetAttribute Method (String^, String^)
When overridden in a derived class, gets the value of the attribute with the specified LocalName and NamespaceURI.
Assembly: System.Xml (in System.Xml.dll)
Parameters
- name
-
Type:
System::String^
The local name of the attribute.
- namespaceURI
-
Type:
System::String^
The namespace URI of the attribute.
Return Value
Type: System::String^The value of the specified attribute. If the attribute is not found or the value is String.Empty, null is returned. This method does not move the reader.
| Exception | Condition |
|---|---|
| ArgumentNullException | name is null. |
| InvalidOperationException | 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.” |
The following XML contains an attribute in a specific namespace:
<test xmlns:dt="urn:datatypes" dt:type="int"/>
You can lookup the dt:type attribute using one argument (prefix and local name) or two arguments (local name and namespace URI):
String dt = reader.GetAttribute("dt:type");
String dt2 = reader.GetAttribute("type","urn:datatypes");
To lookup the xmlns:dt attribute, use one of the following arguments:
String dt3 = reader.GetAttribute("xmlns:dt");
String dt4 = reader.GetAttribute("dt",http://www.w3.org/2000/xmlns/);
You can also get this information using the Prefix property.
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1