Assembly.CodeBase Property

Definition

Namespace:

System.Reflection

Assembly:

System.Runtime.dll

Source:

Assembly.cs

Caution

Assembly.CodeBase and Assembly.EscapedCodeBase are only included for .NET Framework compatibility. Use Assembly.Location.

Gets the location of the assembly as specified originally, for example, in an AssemblyName object.

public:
 virtual property System::String ^ CodeBase { System::String ^ get(); };

[System.Obsolete("Assembly.CodeBase and Assembly.EscapedCodeBase are only included for .NET Framework compatibility. Use Assembly.Location.", DiagnosticId="SYSLIB0012", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public virtual string? CodeBase { get; }

[<System.Obsolete("Assembly.CodeBase and Assembly.EscapedCodeBase are only included for .NET Framework compatibility. Use Assembly.Location.", DiagnosticId="SYSLIB0012", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
member this.CodeBase : string

Public Overridable ReadOnly Property CodeBase As String

Property Value

String

The location of the assembly as specified originally.

Attributes

ObsoleteAttribute

Exceptions

NotImplementedException

.NET Core and .NET 5+ only: In all cases.

Examples

The following example uses the CodeBase property.

using namespace System;
using namespace System::Reflection;

void main()
{
   // Instantiate a target object.
   int integer1 = 1632;
   // Instantiate an Assembly class to the assembly housing the Integer type.
   Assembly^ systemAssembly = integer1.GetType()->Assembly;
   // Get the location of the assembly using the file: protocol.
   Console::WriteLine("CodeBase = {0}", systemAssembly->CodeBase);
}
// The example displays output like the following:
//   CodeBase = file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll

using System;
using System.Reflection;

public class Example
{
   public static void Main()
   {
      // Instantiate a target object.
      Int32 integer1 = 1632;
      // Instantiate an Assembly class to the assembly housing the Integer type.
      Assembly systemAssembly = integer1.GetType().Assembly;
      // Get the location of the assembly using the file: protocol.
      Console.WriteLine("CodeBase = {0}", systemAssembly.CodeBase);
   }
}
// The example displays output like the following:
//    CodeBase = file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll

Imports System.Reflection

Module Example
   Public Sub Main()
      ' Instantiate a target object.
      Dim integer1 As Integer = 1632
      ' Instantiate an Assembly class to the assembly housing the Integer type.
      Dim systemAssembly As Assembly = integer1.GetType().Assembly
      ' Get the location of the assembly using the file: protocol.
      Console.WriteLine("CodeBase = {0}", systemAssembly.CodeBase)
   End Sub
End Module
' The example displays output like the following:
'   CodeBase = file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll

Remarks

To get the absolute path to the loaded manifest-containing file, use the Assembly.Location property instead.

If the assembly was loaded as a byte array, using an overload of the Load method that takes an array of bytes, this property returns the location of the caller of the method, not the location of the loaded assembly.

In .NET 5 and later versions, for bundled assemblies, this property throws an exception.