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Mar 14, 2022
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System.RuntimeTypeHandle F# snippet #7824

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10 changes: 10 additions & 0 deletions snippets/fsharp/System/RuntimeTypeHandle/Overview/fs.fsproj
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net6.0</TargetFramework>
</PropertyGroup>

<ItemGroup>
<Compile Include="type_gettypehandle.fs" />
</ItemGroup>
</Project>
40 changes: 40 additions & 0 deletions snippets/fsharp/System/RuntimeTypeHandle/Overview/type_gettypehandle.fs
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// <Snippet1>
open System

type MyClass1() =
let x = 0
member _.MyMethod() =
x

let myClass1 = MyClass1()

// Get the RuntimeTypeHandle from an object.
let myRTHFromObject = Type.GetTypeHandle myClass1
// Get the RuntimeTypeHandle from a type.
let myRTHFromType = typeof<MyClass1>.TypeHandle

printfn $"\nmyRTHFromObject.Value: {myRTHFromObject.Value}"
printfn $"myRTHFromObject.GetType(): {myRTHFromObject.GetType()}"
printfn "Get the type back from the handle..."
printfn $"Type.GetTypeFromHandle(myRTHFromObject): {Type.GetTypeFromHandle myRTHFromObject}"

printfn $"\nmyRTHFromObject.Equals(myRTHFromType): {myRTHFromObject.Equals myRTHFromType}"

printfn $"\nmyRTHFromType.Value: {myRTHFromType.Value}"
printfn $"myRTHFromType.GetType(): {myRTHFromType.GetType()}"
printfn "Get the type back from the handle..."
printfn $"Type.GetTypeFromHandle(myRTHFromType): {Type.GetTypeFromHandle myRTHFromType}"

// This code example produces output similar to the following:
// myRTHFromObject.Value: 799464
// myRTHFromObject.GetType(): System.RuntimeTypeHandle
// Get the type back from the handle...
// Type.GetTypeFromHandle(myRTHFromObject): MyClass1
//
// myRTHFromObject.Equals(myRTHFromType): True
//
// myRTHFromType.Value: 799464
// myRTHFromType.GetType(): System.RuntimeTypeHandle
// Get the type back from the handle...
// Type.GetTypeFromHandle(myRTHFromType): MyClass1
// </Snippet1>
1 change: 1 addition & 0 deletions xml/System/RuntimeTypeHandle.xml
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Expand Up @@ -77,6 +77,7 @@

:::code language="cpp" source="~/snippets/cpp/VS_Snippets_CLR/Type_GetTypeHandle/CPP/Type_GetTypeHandle.cpp" id="Snippet1":::
:::code language="csharp" source="~/snippets/csharp/System/RuntimeTypeHandle/Overview/type_gettypehandle.cs" id="Snippet1":::
:::code language="fsharp" source="~/snippets/fsharp/System/RuntimeTypeHandle/Overview/type_gettypehandle.fs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CLR/Type_GetTypeHandle/VB/type_gettypehandle.vb" id="Snippet1":::

]]></format>
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