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Hashtable.Hashtable(SerializationInfo, StreamingContext) Constructor

Initializes a new, empty instance of the Hashtable class that is serializable using the specified SerializationInfo and StreamingContext objects.

Namespace: System.Collections
Assembly: mscorlib (in mscorlib.dll)

'Declaration
Protected Sub New ( _
	info As SerializationInfo, _
	context As StreamingContext _
)
'Usage
Dim info As SerializationInfo
Dim context As StreamingContext

Dim instance As New Hashtable(info, context)
protected Hashtable (
	SerializationInfo info, 
	StreamingContext context
)
protected function Hashtable (
	info : SerializationInfo, 
	context : StreamingContext
)
Not applicable.

Parameters

info

A SerializationInfo object containing the information required to serialize the Hashtable object.

context

A StreamingContext object containing the source and destination of the serialized stream associated with the Hashtable.

Exception typeCondition

ArgumentNullException

info is a null reference (Nothing in Visual Basic).

A hash table's capacity is used to calculate the optimal number of hash table buckets based on the load factor. Capacity is automatically increased as required.

The load factor is the maximum ratio of elements to buckets. A smaller load factor means faster lookup at the cost of increased memory consumption.

When the actual load factor reaches the specified load factor, the number of buckets is automatically increased to the smallest prime number that is larger than twice the current number of buckets.

The hash code provider dispenses hash codes for keys in the Hashtable object. The default hash code provider is the key's implementation of Object.GetHashCode.

The comparer determines whether two keys are equal. Every key in a Hashtable must be unique. The default comparer is the key's implementation of Object.Equals.

This constructor is an O(n) operation, where n is Count.

Because serializing and deserializing an enumerator for a Hashtable can cause the elements to become reordered, it is not possible to continue enumeration without calling the Reset method.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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