﻿<?xml version="1.0" encoding="utf-8"?><Type Name="StreamUpgradeInitiator" FullName="System.ServiceModel.Channels.StreamUpgradeInitiator"><TypeSignature Language="C#" Value="public abstract class StreamUpgradeInitiator" /><TypeSignature Language="ILAsm" Value=".class public auto ansi abstract beforefieldinit StreamUpgradeInitiator extends System.Object" /><AssemblyInfo><AssemblyName>System.ServiceModel</AssemblyName><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><Base><BaseTypeName>System.Object</BaseTypeName></Base><Interfaces /><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>An example of a stream upgrade is to build a compression stream directly on top of the transport stream. This class is used with <see cref="T:System.ServiceModel.Channels.StreamUpgradeAcceptor" /> and <see cref="T:System.ServiceModel.Channels.StreamUpgradeProvider" /> to implement a custom stream upgrade.  </para><para>For a detailed description of the upgrade process, see <see cref="T:System.ServiceModel.Channels.StreamUpgradeProvider" />.</para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>To implement a custom upgrade initiator, inherit from this abstract base class. </para></summary></Docs><Members><Member MemberName=".ctor"><MemberSignature Language="C#" Value="protected StreamUpgradeInitiator ();" /><MemberSignature Language="ILAsm" Value=".method familyhidebysig specialname rtspecialname instance void .ctor() cil managed" /><MemberType>Constructor</MemberType><AssemblyInfo><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><Parameters /><Docs><remarks>To be added.</remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Initializes a new instance of the <see cref="T:System.ServiceModel.Channels.StreamUpgradeInitiator" /> class. </para></summary></Docs></Member><Member MemberName="BeginInitiateUpgrade"><MemberSignature Language="C#" Value="public abstract IAsyncResult BeginInitiateUpgrade (System.IO.Stream stream, AsyncCallback callback, object state);" /><MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance class System.IAsyncResult BeginInitiateUpgrade(class System.IO.Stream stream, class System.AsyncCallback callback, object state) cil managed" /><MemberType>Method</MemberType><AssemblyInfo><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue><ReturnType>System.IAsyncResult</ReturnType></ReturnValue><Parameters><Parameter Name="stream" Type="System.IO.Stream" /><Parameter Name="callback" Type="System.AsyncCallback" /><Parameter Name="state" Type="System.Object" /></Parameters><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>This method calls <see cref="M:System.ServiceModel.Channels.StreamUpgradeInitiator.InitiateUpgrade(System.IO.Stream)" /> and returns. </para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>This abstract method can be implemented to do asynchronous processing that initiates an upgrade.</para></summary><returns><attribution license="cc4" from="Microsoft" modified="false" /><para>Returns an <see cref="T:System.IAsyncResult" /> to be passed into the <see cref="M:System.ServiceModel.Channels.StreamUpgradeInitiator.EndInitiateUpgrade(System.IAsyncResult)" /> method.</para></returns><param name="stream"><attribution license="cc4" from="Microsoft" modified="false" />The stream to be upgraded.</param><param name="callback"><attribution license="cc4" from="Microsoft" modified="false" />The method to call when the <see cref="M:System.ServiceModel.Channels.StreamUpgradeInitiator.InitiateUpgrade(System.IO.Stream)" /> has completed.</param><param name="state"><attribution license="cc4" from="Microsoft" modified="false" />State information about the status of the asynchronous call.</param></Docs></Member><Member MemberName="EndInitiateUpgrade"><MemberSignature Language="C#" Value="public abstract System.IO.Stream EndInitiateUpgrade (IAsyncResult result);" /><MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance class System.IO.Stream EndInitiateUpgrade(class System.IAsyncResult result) cil managed" /><MemberType>Method</MemberType><AssemblyInfo><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue><ReturnType>System.IO.Stream</ReturnType></ReturnValue><Parameters><Parameter Name="result" Type="System.IAsyncResult" /></Parameters><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>For more information about using this method, see the remarks in <see cref="M:System.ServiceModel.Channels.StreamUpgradeInitiator.InitiateUpgrade(System.IO.Stream)" />.</para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>This method is the asynchronous callback method that is called after <see cref="M:System.ServiceModel.Channels.StreamUpgradeInitiator.BeginInitiateUpgrade(System.IO.Stream,System.AsyncCallback,System.Object)" /> has completed.</para></summary><returns><attribution license="cc4" from="Microsoft" modified="false" /><para>Returns the upgraded stream.</para></returns><param name="result"><attribution license="cc4" from="Microsoft" modified="false" />The IAsyncResult returned from the <see cref="M:System.ServiceModel.Channels.StreamUpgradeInitiator.BeginInitiateUpgrade(System.IO.Stream,System.AsyncCallback,System.Object)" /> method. </param></Docs></Member><Member MemberName="GetNextUpgrade"><MemberSignature Language="C#" Value="public abstract string GetNextUpgrade ();" /><MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance string GetNextUpgrade() cil managed" /><MemberType>Method</MemberType><AssemblyInfo><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue><ReturnType>System.String</ReturnType></ReturnValue><Parameters /><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>This method returns a set of upgrade content types supported by the upgrade provider in the order in which they are expected. Upgrade providers that support a single upgrade return only a single value. Upgrade providers that support multiple upgrades return the values in order (for example, compression content type followed by the security content type).</para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Returns the content type of the next upgrade to be performed.</para></summary><returns><attribution license="cc4" from="Microsoft" modified="false" /><para>Returns the content type of the next upgrade.</para></returns></Docs></Member><Member MemberName="InitiateUpgrade"><MemberSignature Language="C#" Value="public abstract System.IO.Stream InitiateUpgrade (System.IO.Stream stream);" /><MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance class System.IO.Stream InitiateUpgrade(class System.IO.Stream stream) cil managed" /><MemberType>Method</MemberType><AssemblyInfo><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue><ReturnType>System.IO.Stream</ReturnType></ReturnValue><Parameters><Parameter Name="stream" Type="System.IO.Stream" /></Parameters><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>This method can be called multiple times for each upgrade supported by the upgrade provider. For example, an upgrade provider that supports compression and security would call this method twice: first to upgrade the default transport streaming for compression, and second to upgrade the security. Subsequent calls to this method should pass in the upgrade stream from the previous call.</para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Initiates the upgrade of the stream by requesting the other end of its connection to upgrade the channel transport layer. </para></summary><returns><attribution license="cc4" from="Microsoft" modified="false" /><para>Returns the upgraded stream.</para></returns><param name="stream"><attribution license="cc4" from="Microsoft" modified="false" />The stream to be upgraded.</param></Docs></Member></Members></Type>