35 lines
2.7 KiB
XML
35 lines
2.7 KiB
XML
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<?xml version="1.0" encoding="utf-8"?>
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<Type Name="AsyncCompletedEventHandler" FullName="System.ComponentModel.AsyncCompletedEventHandler">
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<TypeSignature Language="C#" Value="public delegate void AsyncCompletedEventHandler(object sender, AsyncCompletedEventArgs e);" />
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<TypeSignature Language="ILAsm" Value=".class public auto ansi sealed AsyncCompletedEventHandler extends System.MulticastDelegate" />
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<AssemblyInfo>
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<AssemblyName>System</AssemblyName>
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<AssemblyVersion>2.0.0.0</AssemblyVersion>
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<AssemblyVersion>4.0.0.0</AssemblyVersion>
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</AssemblyInfo>
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<Base>
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<BaseTypeName>System.Delegate</BaseTypeName>
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</Base>
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<Parameters>
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<Parameter Name="sender" Type="System.Object" />
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<Parameter Name="e" Type="System.ComponentModel.AsyncCompletedEventArgs" />
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</Parameters>
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<ReturnValue>
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<ReturnType>System.Void</ReturnType>
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</ReturnValue>
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<Docs>
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<param name="sender">To be added.</param>
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<param name="e">To be added.</param>
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<since version=".NET 2.0" />
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<remarks>
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<attribution license="cc4" from="Microsoft" modified="false" />
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<para>When you create an <see cref="T:System.ComponentModel.AsyncCompletedEventHandler" /> delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event-handler method is called whenever the event occurs, unless you remove the delegate. For more information about event-handler delegates, see <format type="text/html"><a href="d98fd58b-fa4f-4598-8378-addf4355a115">Events and Delegates</a></format>.</para>
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<para>For an asynchronous method, called MethodName, in your component, you will have a corresponding MethodNameCompleted event, and an optional MethodNameCompletedEventArgs class.</para>
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<para>For a component that supports multiple concurrent invocations of its asynchronous methods, the client can supply a unique token, or task ID, to distinguish which asynchronous task is raising particular events. The client's <see cref="T:System.ComponentModel.AsyncCompletedEventHandler" /> can read the <see cref="P:System.ComponentModel.AsyncCompletedEventArgs.UserState" /> property to determine which task is reporting completion. Your implementation should use the <see cref="T:System.ComponentModel.AsyncOperationManager" /> to create an <see cref="T:System.ComponentModel.AsyncOperation" /> that associates the client's task IDs with pending asynchronous tasks.</para>
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</remarks>
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<summary>
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<attribution license="cc4" from="Microsoft" modified="false" />
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<para>Represents the method that will handle the MethodNameCompleted event of an asynchronous operation.</para>
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</summary>
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</Docs>
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</Type>
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