Type.ToString Metod

Definition

Namnområde:
System
Sammansättningar:
mscorlib.dll, System.Runtime.dll
Sammansättningar:
netstandard.dll, System.Runtime.dll
Sammansättning:
System.Runtime.dll
Sammansättning:
mscorlib.dll
Sammansättning:
netstandard.dll
Källa:
Type.cs
Källa:
Type.cs
Källa:
Type.cs
Källa:
Type.cs
Källa:
Type.cs

Returnerar ett String som representerar namnet på den aktuella Type.

public:
 override System::String ^ ToString();
public override string ToString();
override this.ToString : unit -> string
Public Overrides Function ToString () As String

Returer

String

En String som representerar namnet på den aktuella Type.

Implementeringar

ToString()

Exempel

I följande exempel visas en användning av Namespace egenskaperna och Module och -metoden för .ToStringType

using System;

namespace MyNamespace
{
    class MyClass
    {
    }
}

public class Example
{
    public static void Main()
    {
         Type myType = typeof(MyNamespace.MyClass);
         Console.WriteLine("Displaying information about {0}:", myType);
         // Get the namespace of the myClass class.
         Console.WriteLine("   Namespace: {0}.", myType.Namespace);
         // Get the name of the module.
         Console.WriteLine("   Module: {0}.", myType.Module);
         // Get the fully qualified type name.
         Console.WriteLine("   Fully qualified name: {0}.", myType.ToString());
    }
}
// The example displays the following output:
//    Displaying information about MyNamespace.MyClass:
//       Namespace: MyNamespace.
//       Module: type_tostring.exe.
//       Fully qualified name: MyNamespace.MyClass.

namespace MyNamespace
    
type MyClass() = class end

namespace global

module Example = 
    let myType = typeof<MyNamespace.MyClass>
    printfn $"Displaying information about {myType}:"
    // Get the namespace of the myClass class.
    printfn $"   Namespace: {myType.Namespace}."
    // Get the name of the ilmodule.
    printfn $"   Module: {myType.Module}."
    // Get the fully qualified type name.
    printfn $"   Fully qualified name: {myType.ToString()}."
// The example displays the following output:
//    Displaying information about MyNamespace.MyClass:
//       Namespace: MyNamespace.
//       Module: type_tostring.exe.
//       Fully qualified name: MyNamespace.MyClass.

Namespace MyNamespace
    Class [MyClass]
    End Class 
End Namespace 

Public Class Example
    Public Shared Sub Main()
         Dim myType As Type = GetType(MyNamespace.MyClass)
         Console.WriteLine(", myType)
         ' Get the namespace of the MyClass class.
         Console.WriteLine("   Namespace: {0}.", myType.Namespace)
         ' Get the name of the module.
         Console.WriteLine("   Module: {0}.", myType.Module)
         ' Get the fully qualified type name.
         Console.WriteLine("   Fully qualified name: {0}.", myType.ToString())
    End Sub
End Class
' The example displays the following output:
'       Displaying information about MyNamespace.MyClass:
'          Namespace: MyNamespace.
'          Module: type_tostring.exe.
'          Fully qualified name: MyNamespace.MyClass.

I följande exempel jämförs de strängar som returneras av ToString metoden och Nameegenskaperna , FullNameoch AssemblyQualifiedName .

using System;
using System.Collections.Generic;
using System.Globalization;

public class Example
{
    public static void Main()
    {
        Type t = typeof(String);
        ShowTypeInfo(t);

        t = typeof(List<>);
        ShowTypeInfo(t);

        var list = new List<String>();
        t = list.GetType();
        ShowTypeInfo(t);

        Object v = 12;
        t = v.GetType();
        ShowTypeInfo(t);

        t = typeof(IFormatProvider);
        ShowTypeInfo(t);

        IFormatProvider ifmt = NumberFormatInfo.CurrentInfo;
        t = ifmt.GetType();
        ShowTypeInfo(t);
    }

    private static void ShowTypeInfo(Type t)
    {
        Console.WriteLine($"Name: {t.Name}");
        Console.WriteLine($"Full Name: {t.FullName}");
        Console.WriteLine($"ToString:  {t}");
        Console.WriteLine($"Assembly Qualified Name: {t.AssemblyQualifiedName}");
        Console.WriteLine();
    }
}
// The example displays output like the following:
//    Name: String
//    Full Name: System.String
//    ToString:  System.String
//    Assembly Qualified Name: System.String, mscorlib, Version=4.0.0.0, Culture=neutr
//    al, PublicKeyToken=b77a5c561934e089
//
//    Name: List`1
//    Full Name: System.Collections.Generic.List`1
//    ToString:  System.Collections.Generic.List`1[T]
//    Assembly Qualified Name: System.Collections.Generic.List`1, mscorlib, Version=4.
//    0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
//
//    Name: List`1
//    Full Name: System.Collections.Generic.List`1[[System.String, mscorlib, Version=4
//    .0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]
//    ToString:  System.Collections.Generic.List`1[System.String]
//    Assembly Qualified Name: System.Collections.Generic.List`1[[System.String, mscor
//    lib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], mscorl
//    ib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
//
//    Name: Int32
//    Full Name: System.Int32
//    ToString:  System.Int32
//    Assembly Qualified Name: System.Int32, mscorlib, Version=4.0.0.0, Culture=neutra
//    l, PublicKeyToken=b77a5c561934e089
//
//    Name: IFormatProvider
//    Full Name: System.IFormatProvider
//    ToString:  System.IFormatProvider
//    Assembly Qualified Name: System.IFormatProvider, mscorlib, Version=4.0.0.0, Cult
//    ure=neutral, PublicKeyToken=b77a5c561934e089
//
//    Name: NumberFormatInfo
//    Full Name: System.Globalization.NumberFormatInfo
//    ToString:  System.Globalization.NumberFormatInfo
//    Assembly Qualified Name: System.Globalization.NumberFormatInfo, mscorlib, Versio
//    n=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089

open System
open System.Globalization

let showTypeInfo (t: Type) =
    printfn $"Name: {t.Name}"
    printfn $"Full Name: {t.FullName}"
    printfn $"ToString:  {t}"
    printfn $"Assembly Qualified Name: {t.AssemblyQualifiedName}\n"

typeof<String>
|> showTypeInfo

(typeof<ResizeArray<_>>).GetGenericTypeDefinition()
|> showTypeInfo

let list = ResizeArray<String>()
list.GetType()
|> showTypeInfo

let v: obj = 12
v.GetType()
|> showTypeInfo

typeof<IFormatProvider>
|> showTypeInfo

let ifmt = NumberFormatInfo.CurrentInfo
ifmt.GetType()
|> showTypeInfo

let o = Some 3
o.GetType()
|> showTypeInfo

// The example displays output like the following:
//    Name: String
//    Full Name: System.String
//    ToString:  System.String
//    Assembly Qualified Name: System.String, mscorlib, Version=4.0.0.0, Culture=neutr
//    al, PublicKeyToken=b77a5c561934e089
//
//    Name: List`1
//    Full Name: System.Collections.Generic.List`1
//    ToString:  System.Collections.Generic.List`1[T]
//    Assembly Qualified Name: System.Collections.Generic.List`1, mscorlib, Version=4.
//    0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
//
//    Name: List`1
//    Full Name: System.Collections.Generic.List`1[[System.String, mscorlib, Version=4
//    .0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]
//    ToString:  System.Collections.Generic.List`1[System.String]
//    Assembly Qualified Name: System.Collections.Generic.List`1[[System.String, mscor
//    lib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], mscorl
//    ib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
//
//    Name: Int32
//    Full Name: System.Int32
//    ToString:  System.Int32
//    Assembly Qualified Name: System.Int32, mscorlib, Version=4.0.0.0, Culture=neutra
//    l, PublicKeyToken=b77a5c561934e089
//
//    Name: IFormatProvider
//    Full Name: System.IFormatProvider
//    ToString:  System.IFormatProvider
//    Assembly Qualified Name: System.IFormatProvider, mscorlib, Version=4.0.0.0, Cult
//    ure=neutral, PublicKeyToken=b77a5c561934e089
//
//    Name: NumberFormatInfo
//    Full Name: System.Globalization.NumberFormatInfo
//    ToString:  System.Globalization.NumberFormatInfo
//    Assembly Qualified Name: System.Globalization.NumberFormatInfo, mscorlib, Versio
//    n=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
//
//    Name: FSharpOption`1
//    Full Name: Microsoft.FSharp.Core.FSharpOption`1[[System.Int32, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]
//    ToString:  Microsoft.FSharp.Core.FSharpOption`1[System.Int32]
//    Assembly Qualified Name: Microsoft.FSharp.Core.FSharpOption`1[[System.Int32, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], FSharp.Core, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a

Imports System.Collections.Generic
Imports System.Globalization

Module Example
    Public Sub Main()
        Dim t As Type = GetType(String)
        ShowTypeInfo(t)

        t = GetType(List(Of))
        ShowTypeInfo(t)

        Dim list As New List(Of String)()
        t = list.GetType()
        ShowTypeInfo(t)

        Dim v As Object = 12
        t = v.GetType()
        ShowTypeInfo(t)

        t = GetType(IFormatProvider)
        ShowTypeInfo(t)

        Dim ifmt As IFormatProvider = NumberFormatInfo.CurrentInfo
        t = ifmt.GetType()
        ShowTypeInfo(t)
    End Sub

    Private Sub ShowTypeInfo(t As Type)
        Console.WriteLine($"Name: {t.Name}")
        Console.WriteLine($"Full Name: {t.FullName}")
        Console.WriteLine($"ToString:  {t}")
        Console.WriteLine($"Assembly Qualified Name: {t.AssemblyQualifiedName}")
        Console.WriteLine()
    End Sub
End Module
' The example displays output like the following:
'    Name: String
'    Full Name: System.String
'    ToString:  System.String
'    Assembly Qualified Name: System.String, mscorlib, Version=4.0.0.0, Culture=neutr
'    al, PublicKeyToken=b77a5c561934e089
'
'    Name: List`1
'    Full Name: System.Collections.Generic.List`1
'    ToString:  System.Collections.Generic.List`1[T]
'    Assembly Qualified Name: System.Collections.Generic.List`1, mscorlib, Version=4.
'    0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
'
'    Name: List`1
'    Full Name: System.Collections.Generic.List`1[[System.String, mscorlib, Version=4
'    .0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]
'    ToString:  System.Collections.Generic.List`1[System.String]
'    Assembly Qualified Name: System.Collections.Generic.List`1[[System.String, mscor
'    lib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], mscorl
'    ib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
'
'    Name: Int32
'    Full Name: System.Int32
'    ToString:  System.Int32
'    Assembly Qualified Name: System.Int32, mscorlib, Version=4.0.0.0, Culture=neutra
'    l, PublicKeyToken=b77a5c561934e089
'
'    Name: IFormatProvider
'    Full Name: System.IFormatProvider
'    ToString:  System.IFormatProvider
'    Assembly Qualified Name: System.IFormatProvider, mscorlib, Version=4.0.0.0, Cult
'    ure=neutral, PublicKeyToken=b77a5c561934e089
'
'    Name: NumberFormatInfo
'    Full Name: System.Globalization.NumberFormatInfo
'    ToString:  System.Globalization.NumberFormatInfo
'    Assembly Qualified Name: System.Globalization.NumberFormatInfo, mscorlib, Versio
'    n=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089

Kommentarer

Den här metoden returnerar det fullständigt kvalificerade common language runtime-namnområdet och namnet för alla primitiva typer. Till exempel returnerar C#-instruktionen (long)0.Type().ToString() "System.Int64" i stället för bara "Int64".

Om strömmen Type representerar en allmän typ kvalificeras typen och dess typargument efter namnområde och kapslad typ, men inte efter sammansättning. Om den aktuella Type representerar en typparameter i definitionen av en allmän typ eller allmän metod returnerar den här metoden det okvalificerade namnet på typparametern.

Gäller för

Se även