XmlReader.Item[] 屬性

Source:

XmlReader.cs

Source:

XmlReader.cs

Source:

XmlReader.cs

public:
 virtual property System::String ^ default[int] { System::String ^ get(int i); };

public:
 abstract property System::String ^ default[int] { System::String ^ get(int i); };

public virtual string this[int i] { get; }

public abstract string this[int i] { get; }

member this.Item(int) : string

Default Public Overridable ReadOnly Property Item(i As Integer) As String

Default Public MustOverride ReadOnly Property Item(i As Integer) As String

參數

屬性值

指定的屬性值。

例外狀況

範例

下列範例會顯示目前節點上的所有屬性。

// Display all attributes.
if (reader.HasAttributes) {
  Console.WriteLine("Attributes of <" + reader.Name + ">");
  for (int i = 0; i < reader.AttributeCount; i++) {
    Console.WriteLine("  {0}", reader[i]);
  }
  // Move the reader back to the element node.
  reader.MoveToElement();
}

' Display all attributes.
If reader.HasAttributes Then
  Console.WriteLine("Attributes of <" + reader.Name + ">")
  Dim i As Integer
  For i = 0 To (reader.AttributeCount - 1)
    Console.WriteLine("  {0}", reader(i))
  Next i
  ' Move the reader back to the element node.
  reader.MoveToElement() 
End If

備註

此屬性不會移動讀取器。

另請參閱

• GetAttribute(Int32)

Source:

XmlReader.cs

Source:

XmlReader.cs

Source:

XmlReader.cs

public:
 virtual property System::String ^ default[System::String ^] { System::String ^ get(System::String ^ name); };

public:
 abstract property System::String ^ default[System::String ^] { System::String ^ get(System::String ^ name); };

public virtual string this[string name] { get; }

public virtual string? this[string name] { get; }

public abstract string this[string name] { get; }

member this.Item(string) : string

Default Public Overridable ReadOnly Property Item(name As String) As String

Default Public MustOverride ReadOnly Property Item(name As String) As String

參數

屬性值

指定的屬性值。 如果找不到屬性，會傳回 null。

例外狀況

範例

下列範例會取得 ISBN 屬性的值。

reader.ReadToDescendant("book");
string isbn =reader["ISBN"];
Console.WriteLine("The ISBN value: " + isbn);

reader.ReadToDescendant("book")
Dim isbn As String = reader("ISBN")
Console.WriteLine("The ISBN value: " + isbn)

備註

此屬性不會移動讀取器。

如果讀取器位於 DocumentType 節點上，則這個方法可用來取得 PUBLIC 和 SYSTEM 常值，例如 reader["PUBLIC"]

另請參閱

• GetAttribute(String)

Source:

XmlReader.cs

Source:

XmlReader.cs

Source:

XmlReader.cs

public:
 virtual property System::String ^ default[System::String ^, System::String ^] { System::String ^ get(System::String ^ name, System::String ^ namespaceURI); };

public:
 abstract property System::String ^ default[System::String ^, System::String ^] { System::String ^ get(System::String ^ name, System::String ^ namespaceURI); };

public virtual string this[string name, string namespaceURI] { get; }

public virtual string? this[string name, string? namespaceURI] { get; }

public abstract string this[string name, string namespaceURI] { get; }

member this.Item(string * string) : string

Default Public Overridable ReadOnly Property Item(name As String, namespaceURI As String) As String

Default Public MustOverride ReadOnly Property Item(name As String, namespaceURI As String) As String

參數

屬性值

指定的屬性值。 如果找不到屬性，會傳回 null。

例外狀況

備註

此屬性不會移動讀取器。

另請參閱

• GetAttribute(String, String)