﻿<?xml version="1.0" encoding="utf-8"?><Type Name="InvalidOperationException" FullName="System.InvalidOperationException" FullNameSP="System_InvalidOperationException" Maintainer="ecma"><TypeSignature Language="ILASM" Value=".class public serializable InvalidOperationException extends System.SystemException" /><TypeSignature Language="C#" Value="public class InvalidOperationException : SystemException" /><TypeSignature Language="ILAsm" Value=".class public auto ansi serializable beforefieldinit InvalidOperationException extends System.SystemException" /><MemberOfLibrary>BCL</MemberOfLibrary><AssemblyInfo><AssemblyName>mscorlib</AssemblyName><AssemblyPublicKey>[00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00 ]</AssemblyPublicKey><AssemblyVersion>1.0.5000.0</AssemblyVersion><AssemblyVersion>2.0.0.0</AssemblyVersion><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ThreadingSafetyStatement>All public static members of this type are safe for multithreaded operations. No instance members are guaranteed to be thread safe.</ThreadingSafetyStatement><Base><BaseTypeName>System.SystemException</BaseTypeName></Base><Interfaces /><Attributes><Attribute><AttributeName>System.Runtime.InteropServices.ComVisible(true)</AttributeName></Attribute></Attributes><Docs><example><para>The following example demonstrates an error that causes
      a <see cref="T:System.InvalidOperationException" /> exception.</para><code lang="C#">using System;
using System.Collections;
public class InvalidOpExample  {
  public static void Main()  {
    int[] array = {0,0};
    IEnumerator enumerator = array.GetEnumerator();
    Console.Write("{0}",enumerator.Current);
  }
}
   </code><para>The output is</para><c><para>Unhandled Exception: System.InvalidOperationException: Enumeration has not
         started. Call MoveNext.</para><para>at System.SZArrayEnumerator.get_Current()</para><para>at InvalidOpExample.Main()</para></c></example><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para><see cref="T:System.InvalidOperationException" /> is used in cases when the failure to invoke a method is caused by reasons other than invalid arguments. For example, <see cref="T:System.InvalidOperationException" /> is thrown by: </para><list type="bullet"><item><para><see cref="M:System.Collections.IEnumerator.MoveNext" /> if objects of a collection are modified after the enumerator is created.</para></item><item><para><see cref="M:System.Resources.ResourceSet.GetString(System.String)" /> if the resource set is closed before the method call is made.</para></item></list><para>To determine the precise cause of the exception, consult the exception information for the method call that throws the exception. </para><para>If the method invocation failure is due to invalid arguments, then <see cref="T:System.ArgumentException" /> or one of its derived classes, <see cref="T:System.ArgumentNullException" /> or <see cref="T:System.ArgumentOutOfRangeException" />, should be thrown instead.</para><list type="bullet"><item><para>The <see cref="F:System.Reflection.Emit.OpCodes.Ldflda" /> Microsoft intermediate language (MSIL) instruction throws <see cref="T:System.InvalidOperationException" />.</para></item></list><para><see cref="T:System.InvalidOperationException" /> uses the HRESULT COR_E_INVALIDOPERATION, which has the value 0x80131509.</para><para>For a list of initial property values for an instance of <see cref="T:System.InvalidOperationException" />, see the <see cref="M:System.InvalidOperationException.#ctor" /> constructors.</para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>The exception that is thrown when a method call is invalid for the object's current state.</para></summary></Docs><Members><Member MemberName=".ctor"><MemberSignature Language="ILASM" Value="public rtspecialname specialname instance void .ctor()" /><MemberSignature Language="C#" Value="public InvalidOperationException ();" /><MemberSignature Language="ILAsm" Value=".method public hidebysig specialname rtspecialname instance void .ctor() cil managed" /><MemberType>Constructor</MemberType><AssemblyInfo><AssemblyVersion>1.0.5000.0</AssemblyVersion><AssemblyVersion>2.0.0.0</AssemblyVersion><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue /><Parameters /><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>This constructor initializes the <see cref="P:System.Exception.Message" /> property of the new instance to a system-supplied message that describes the error, such as "The requested operation cannot be performed." This message takes into account the current system culture.</para><para>The following table shows the initial property values for an instance of <see cref="T:System.InvalidOperationException" />.</para><list type="table"><listheader><item><term><para>Property </para></term><description><para>Value </para></description></item></listheader><item><term><para><see cref="P:System.Exception.InnerException" /></para></term><description><para>A null reference (Nothing in Visual Basic). </para></description></item><item><term><para><see cref="P:System.Exception.Message" /></para></term><description><para>The localized error message string. </para></description></item></list></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Initializes a new instance of the <see cref="T:System.InvalidOperationException" /> class.</para></summary></Docs><Excluded>0</Excluded></Member><Member MemberName=".ctor"><MemberSignature Language="ILASM" Value="public rtspecialname specialname instance void .ctor(string message)" /><MemberSignature Language="C#" Value="public InvalidOperationException (string message);" /><MemberSignature Language="ILAsm" Value=".method public hidebysig specialname rtspecialname instance void .ctor(string message) cil managed" /><MemberType>Constructor</MemberType><AssemblyInfo><AssemblyVersion>1.0.5000.0</AssemblyVersion><AssemblyVersion>2.0.0.0</AssemblyVersion><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue /><Parameters><Parameter Name="message" Type="System.String" /></Parameters><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>This constructor initializes the <see cref="P:System.Exception.Message" /> property of the new exception using the <paramref name="message" /> parameter. The content of <paramref name="message" /> is intended to be understood by humans. The caller of this constructor is required to ensure that this string has been localized for the current system culture.</para><para>The following table shows the initial property values for an instance of <see cref="T:System.InvalidOperationException" />.</para><list type="table"><listheader><item><term><para>Property </para></term><description><para>Value </para></description></item></listheader><item><term><para><see cref="P:System.Exception.InnerException" /></para></term><description><para>A null reference (Nothing in Visual Basic). </para></description></item><item><term><para><see cref="P:System.Exception.Message" /></para></term><description><para>The error message string. </para></description></item></list></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Initializes a new instance of the <see cref="T:System.InvalidOperationException" /> class with a specified error message.</para></summary><param name="message"><attribution license="cc4" from="Microsoft" modified="false" />The message that describes the error. </param></Docs><Excluded>0</Excluded></Member><Member MemberName=".ctor"><MemberSignature Language="C#" Value="protected InvalidOperationException (System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context);" /><MemberSignature Language="ILAsm" Value=".method familyhidebysig specialname rtspecialname instance void .ctor(class System.Runtime.Serialization.SerializationInfo info, valuetype System.Runtime.Serialization.StreamingContext context) cil managed" /><MemberType>Constructor</MemberType><AssemblyInfo><AssemblyVersion>1.0.5000.0</AssemblyVersion><AssemblyVersion>2.0.0.0</AssemblyVersion><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><Parameters><Parameter Name="info" Type="System.Runtime.Serialization.SerializationInfo" /><Parameter Name="context" Type="System.Runtime.Serialization.StreamingContext" /></Parameters><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>This constructor is called during deserialization to reconstitute the exception object transmitted over a stream. For more information, see <format type="text/html"><a href="832AC524-21BC-419A-A27B-CA8BFC45840F">[&lt;topic://cpconSerialization&gt;]</a></format>.</para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Initializes a new instance of the <see cref="T:System.InvalidOperationException" /> class with serialized data.</para></summary><param name="info"><attribution license="cc4" from="Microsoft" modified="false" />The object that holds the serialized object data. </param><param name="context"><attribution license="cc4" from="Microsoft" modified="false" />The contextual information about the source or destination. </param></Docs></Member><Member MemberName=".ctor"><MemberSignature Language="ILASM" Value="public rtspecialname specialname instance void .ctor(string message, class System.Exception innerException)" /><MemberSignature Language="C#" Value="public InvalidOperationException (string message, Exception innerException);" /><MemberSignature Language="ILAsm" Value=".method public hidebysig specialname rtspecialname instance void .ctor(string message, class System.Exception innerException) cil managed" /><MemberType>Constructor</MemberType><AssemblyInfo><AssemblyVersion>1.0.5000.0</AssemblyVersion><AssemblyVersion>2.0.0.0</AssemblyVersion><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue /><Parameters><Parameter Name="message" Type="System.String" /><Parameter Name="innerException" Type="System.Exception" /></Parameters><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>An exception that is thrown as a direct result of a previous exception should include a reference to the previous exception in the <see cref="P:System.Exception.InnerException" /> property. The <see cref="P:System.Exception.InnerException" /> property returns the same value that is passed into the constructor, or a null reference (Nothing in Visual Basic) if the <see cref="P:System.Exception.InnerException" /> property does not supply the inner exception value to the constructor.</para><para>The following table shows the initial property values for an instance of <see cref="T:System.InvalidOperationException" />.</para><list type="table"><listheader><item><term><para>Property </para></term><description><para>Value </para></description></item></listheader><item><term><para><see cref="P:System.Exception.InnerException" /></para></term><description><para>The inner exception reference. </para></description></item><item><term><para><see cref="P:System.Exception.Message" /></para></term><description><para>The error message string. </para></description></item></list></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Initializes a new instance of the <see cref="T:System.InvalidOperationException" /> class with a specified error message and a reference to the inner exception that is the cause of this exception.</para></summary><param name="message"><attribution license="cc4" from="Microsoft" modified="false" />The error message that explains the reason for the exception. </param><param name="innerException"><attribution license="cc4" from="Microsoft" modified="false" />The exception that is the cause of the current exception. If the <paramref name="innerException" /> parameter is not a null reference (Nothing in Visual Basic), the current exception is raised in a catch block that handles the inner exception. </param></Docs><Excluded>0</Excluded></Member></Members><TypeExcluded>0</TypeExcluded></Type>