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XmlReader.MoveToFirstAttribute Method

  • Reference

Definition

Namespace:
System.Xml
Assemblies:
System.Xml.dll, System.Xml.ReaderWriter.dll
Assemblies:
netstandard.dll, System.Xml.ReaderWriter.dll
Assembly:
System.Xml.ReaderWriter.dll
Assembly:
System.Xml.dll
Assembly:
netstandard.dll
Source:
XmlReader.cs
Source:
XmlReader.cs
Source:
XmlReader.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

When overridden in a derived class, moves to the first attribute.

C# 
public abstract bool MoveToFirstAttribute();

Returns

Boolean

true if an attribute exists (the reader moves to the first attribute); otherwise, false (the position of the reader does not change).

Exceptions

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."

Examples

The following example gets the value of the first attribute.

C# 
reader.ReadToFollowing("book");
reader.MoveToFirstAttribute();
string genre = reader.Value;
Console.WriteLine("The genre value: " + genre);

Applies to

Produkt Versioner
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1
UWP 10.0