本类位于System.Data.dll中,名为:System.Data.Common.NameValuePair。主要用途是在DBConnectionString类中,解析ConnectionString时存储并串联Name/Value对。框架类中没有使用Collection名称空间下的通用集合类,应该是出于效率和便于持久化方面的考虑。
[Serializable]
public sealed class NameValuePair
{
private readonly string _name;
private NameValuePair _next;
private readonly string _value;
public NameValuePair( string name, string value)
{
if ( StringHelper. IsEmpty(name) )
{
throw new ArgumentException("name");
}
this._name = name;
this._value = value;
}
public NameValuePair( string name, string value, NameValuePair next) : this(name, value)
{
this._next = next;
}
public NameValuePair Clone()
{
return new NameValuePair( this._name, this._value);
}
public string Name
{
get { return this._name; }
}
public NameValuePair Next
{
get
{
return this._next;
}
set
{
if ( this._next != null )
{
throw new InvalidOperationException();
}
this._next = value;
}
}
public string Value
{
get
{
return this._value;
}
}
}
public sealed class NameValuePair
{
private readonly string _name;
private NameValuePair _next;
private readonly string _value;
public NameValuePair( string name, string value)
{
if ( StringHelper. IsEmpty(name) )
{
throw new ArgumentException("name");
}
this._name = name;
this._value = value;
}
public NameValuePair( string name, string value, NameValuePair next) : this(name, value)
{
this._next = next;
}
public NameValuePair Clone()
{
return new NameValuePair( this._name, this._value);
}
public string Name
{
get { return this._name; }
}
public NameValuePair Next
{
get
{
return this._next;
}
set
{
if ( this._next != null )
{
throw new InvalidOperationException();
}
this._next = value;
}
}
public string Value
{
get
{
return this._value;
}
}
}
本文转自博客园鸟食轩的博客,原文链接:http://www.cnblogs.com/birdshome/,如需转载请自行联系原博主。