dotnet-api-docs/xml/System.Linq/IQueryable.xml at main · dotnet/dotnet-api-docs · GitHub

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<Type Name="IQueryable" FullName="System.Linq.IQueryable">
  <TypeSignature Language="C#" Value="public interface IQueryable : System.Collections.IEnumerable" />
  <TypeSignature Language="ILAsm" Value=".class public interface auto ansi abstract IQueryable implements class System.Collections.IEnumerable" FrameworkAlternate="dotnet-uwp-10.0;net-5.0;net-6.0;net-7.0;netcore-1.0;netcore-1.1;netcore-2.0;netcore-2.1;netcore-2.2;netcore-3.0;netcore-3.1;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;netstandard-1.0;netstandard-1.1;netstandard-1.2;netstandard-1.3;netstandard-1.4;netstandard-1.6;netstandard-2.0;netstandard-2.1" />
  <TypeSignature Language="DocId" Value="T:System.Linq.IQueryable" />
  <TypeSignature Language="VB.NET" Value="Public Interface IQueryable&#xA;Implements IEnumerable" />
  <TypeSignature Language="F#" Value="type IQueryable = interface&#xA;    interface IEnumerable" />
  <TypeSignature Language="C++ CLI" Value="public interface class IQueryable : System::Collections::IEnumerable" />
  <TypeSignature Language="ILAsm" Value=".class public interface auto ansi abstract beforefieldinit IQueryable implements class System.Collections.IEnumerable" FrameworkAlternate="net-10.0;net-11.0;net-8.0;net-9.0" />
  <AssemblyInfo>
    <AssemblyName>System.Linq.Expressions</AssemblyName>
    <AssemblyVersion>4.0.0.0</AssemblyVersion>
    <AssemblyVersion>4.0.10.0</AssemblyVersion>
    <AssemblyVersion>4.1.0.0</AssemblyVersion>
    <AssemblyVersion>4.2.0.0</AssemblyVersion>
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    <AssemblyVersion>4.2.2.0</AssemblyVersion>
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    <AssemblyVersion>7.0.0.0</AssemblyVersion>
    <AssemblyVersion>8.0.0.0</AssemblyVersion>
    <AssemblyVersion>9.0.0.0</AssemblyVersion>
    <AssemblyVersion>10.0.0.0</AssemblyVersion>
    <AssemblyVersion>11.0.0.0</AssemblyVersion>
  </AssemblyInfo>
  <AssemblyInfo>
    <AssemblyName>System.Core</AssemblyName>
    <AssemblyVersion>2.0.5.0</AssemblyVersion>
    <AssemblyVersion>3.5.0.0</AssemblyVersion>
    <AssemblyVersion>4.0.0.0</AssemblyVersion>
  </AssemblyInfo>
  <AssemblyInfo>
    <AssemblyName>netstandard</AssemblyName>
    <AssemblyVersion>2.0.0.0</AssemblyVersion>
    <AssemblyVersion>2.1.0.0</AssemblyVersion>
  </AssemblyInfo>
  <TypeForwardingChain>
    <TypeForwarding From="System.Core" FromVersion="4.0.0.0" To="System.Linq.Expressions" ToVersion="0.0.0.0" FrameworkAlternate="dotnet-uwp-10.0" />
    <TypeForwarding From="netstandard" FromVersion="2.1.0.0" To="System.Linq.Expressions" ToVersion="10.0.0.0" FrameworkAlternate="net-10.0" />
    <TypeForwarding From="netstandard" FromVersion="2.1.0.0" To="System.Linq.Expressions" ToVersion="11.0.0.0" FrameworkAlternate="net-11.0" />
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    <TypeForwarding From="netstandard" FromVersion="2.1.0.0" To="System.Linq.Expressions" ToVersion="8.0.0.0" FrameworkAlternate="net-8.0" />
    <TypeForwarding From="netstandard" FromVersion="2.1.0.0" To="System.Linq.Expressions" ToVersion="9.0.0.0" FrameworkAlternate="net-9.0" />
  </TypeForwardingChain>
  <Interfaces>
    <Interface>
      <InterfaceName>System.Collections.IEnumerable</InterfaceName>
    </Interface>
  </Interfaces>
  <Docs>
    <summary>Provides functionality to evaluate queries against a specific data source wherein the type of the data is not specified.</summary>
    <remarks>
      <format type="text/markdown"><![CDATA[

## Remarks
 The <xref:System.Linq.IQueryable> interface is intended for implementation by query providers. It is only supposed to be implemented by providers that also implement <xref:System.Linq.IQueryable%601>. If the provider does not also implement <xref:System.Linq.IQueryable%601>, the standard query operators cannot be used on the provider's data source.

 The <xref:System.Linq.IQueryable> interface inherits the <xref:System.Collections.IEnumerable> interface so that if it represents a query, the results of that query can be enumerated. Enumeration causes the expression tree associated with an <xref:System.Linq.IQueryable> object to be executed. The definition of "executing an expression tree" is specific to a query provider. For example, it may involve translating the expression tree to an appropriate query language for the underlying data source. Queries that do not return enumerable results are executed when the <xref:System.Linq.IQueryProvider.Execute%2A> method is called.

 For more information about how to create your own LINQ provider, see [LINQ: Building an IQueryable Provider](https://learn.microsoft.com/archive/blogs/mattwar/linq-building-an-iqueryable-provider-part-i).

 ]]></format>
    </remarks>
    <altmember cref="T:System.Linq.Queryable" />
    <altmember cref="T:System.Linq.IQueryable`1" />
  </Docs>
  <Members>
    <Member MemberName="ElementType">
      <MemberSignature Language="C#" Value="public Type ElementType { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance class System.Type ElementType" />
      <MemberSignature Language="DocId" Value="P:System.Linq.IQueryable.ElementType" />
      <MemberSignature Language="VB.NET" Value="Public ReadOnly Property ElementType As Type" />
      <MemberSignature Language="F#" Value="member this.ElementType : Type" Usage="System.Linq.IQueryable.ElementType" />
      <MemberSignature Language="C++ CLI" Value="public:&#xA; property Type ^ ElementType { Type ^ get(); };" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Linq.Expressions</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.10.0</AssemblyVersion>
        <AssemblyVersion>4.1.0.0</AssemblyVersion>
        <AssemblyVersion>4.2.0.0</AssemblyVersion>
        <AssemblyVersion>4.2.1.0</AssemblyVersion>
        <AssemblyVersion>4.2.2.0</AssemblyVersion>
        <AssemblyVersion>5.0.0.0</AssemblyVersion>
        <AssemblyVersion>6.0.0.0</AssemblyVersion>
        <AssemblyVersion>7.0.0.0</AssemblyVersion>
        <AssemblyVersion>8.0.0.0</AssemblyVersion>
        <AssemblyVersion>9.0.0.0</AssemblyVersion>
        <AssemblyVersion>10.0.0.0</AssemblyVersion>
        <AssemblyVersion>11.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <AssemblyInfo>
        <AssemblyName>System.Core</AssemblyName>
        <AssemblyVersion>2.0.5.0</AssemblyVersion>
        <AssemblyVersion>3.5.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <AssemblyInfo>
        <AssemblyName>netstandard</AssemblyName>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>2.1.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Type</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Gets the type of the element(s) that are returned when the expression tree associated with this instance of <see cref="T:System.Linq.IQueryable" /> is executed.</summary>
        <value>A <see cref="T:System.Type" /> that represents the type of the element(s) that are returned when the expression tree associated with this object is executed.</value>
        <remarks>
          <format type="text/markdown"><![CDATA[

## Remarks
 The <xref:System.Linq.IQueryable.ElementType> property represents the "T" in `IQueryable<T>` or `IQueryable(Of T)`.

 ]]></format>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="Expression">
      <MemberSignature Language="C#" Value="public System.Linq.Expressions.Expression Expression { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance class System.Linq.Expressions.Expression Expression" />
      <MemberSignature Language="DocId" Value="P:System.Linq.IQueryable.Expression" />
      <MemberSignature Language="VB.NET" Value="Public ReadOnly Property Expression As Expression" />
      <MemberSignature Language="F#" Value="member this.Expression : System.Linq.Expressions.Expression" Usage="System.Linq.IQueryable.Expression" />
      <MemberSignature Language="C++ CLI" Value="public:&#xA; property System::Linq::Expressions::Expression ^ Expression { System::Linq::Expressions::Expression ^ get(); };" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Linq.Expressions</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.10.0</AssemblyVersion>
        <AssemblyVersion>4.1.0.0</AssemblyVersion>
        <AssemblyVersion>4.2.0.0</AssemblyVersion>
        <AssemblyVersion>4.2.1.0</AssemblyVersion>
        <AssemblyVersion>4.2.2.0</AssemblyVersion>
        <AssemblyVersion>5.0.0.0</AssemblyVersion>
        <AssemblyVersion>6.0.0.0</AssemblyVersion>
        <AssemblyVersion>7.0.0.0</AssemblyVersion>
        <AssemblyVersion>8.0.0.0</AssemblyVersion>
        <AssemblyVersion>9.0.0.0</AssemblyVersion>
        <AssemblyVersion>10.0.0.0</AssemblyVersion>
        <AssemblyVersion>11.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <AssemblyInfo>
        <AssemblyName>System.Core</AssemblyName>
        <AssemblyVersion>2.0.5.0</AssemblyVersion>
        <AssemblyVersion>3.5.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <AssemblyInfo>
        <AssemblyName>netstandard</AssemblyName>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>2.1.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Linq.Expressions.Expression</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Gets the expression tree that is associated with the instance of <see cref="T:System.Linq.IQueryable" />.</summary>
        <value>The <see cref="T:System.Linq.Expressions.Expression" /> that is associated with this instance of <see cref="T:System.Linq.IQueryable" />.</value>
        <remarks>
          <format type="text/markdown"><![CDATA[

## Remarks
 If an instance of <xref:System.Linq.IQueryable> represents a LINQ query against a data source, the associated expression tree represents that query.

 ]]></format>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="Provider">
      <MemberSignature Language="C#" Value="public System.Linq.IQueryProvider Provider { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance class System.Linq.IQueryProvider Provider" />
      <MemberSignature Language="DocId" Value="P:System.Linq.IQueryable.Provider" />
      <MemberSignature Language="VB.NET" Value="Public ReadOnly Property Provider As IQueryProvider" />
      <MemberSignature Language="F#" Value="member this.Provider : System.Linq.IQueryProvider" Usage="System.Linq.IQueryable.Provider" />
      <MemberSignature Language="C++ CLI" Value="public:&#xA; property System::Linq::IQueryProvider ^ Provider { System::Linq::IQueryProvider ^ get(); };" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Linq.Expressions</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.10.0</AssemblyVersion>
        <AssemblyVersion>4.1.0.0</AssemblyVersion>
        <AssemblyVersion>4.2.0.0</AssemblyVersion>
        <AssemblyVersion>4.2.1.0</AssemblyVersion>
        <AssemblyVersion>4.2.2.0</AssemblyVersion>
        <AssemblyVersion>5.0.0.0</AssemblyVersion>
        <AssemblyVersion>6.0.0.0</AssemblyVersion>
        <AssemblyVersion>7.0.0.0</AssemblyVersion>
        <AssemblyVersion>8.0.0.0</AssemblyVersion>
        <AssemblyVersion>9.0.0.0</AssemblyVersion>
        <AssemblyVersion>10.0.0.0</AssemblyVersion>
        <AssemblyVersion>11.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <AssemblyInfo>
        <AssemblyName>System.Core</AssemblyName>
        <AssemblyVersion>2.0.5.0</AssemblyVersion>
        <AssemblyVersion>3.5.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <AssemblyInfo>
        <AssemblyName>netstandard</AssemblyName>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>2.1.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Linq.IQueryProvider</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Gets the query provider that is associated with this data source.</summary>
        <value>The <see cref="T:System.Linq.IQueryProvider" /> that is associated with this data source.</value>
        <remarks>
          <format type="text/markdown"><![CDATA[

## Remarks
 If an instance of <xref:System.Linq.IQueryable> represents a LINQ query against a data source, the associated query provider is the provider that created the <xref:System.Linq.IQueryable> instance.

 ]]></format>
        </remarks>
      </Docs>
    </Member>
  </Members>
</Type>