ModuleBuilder.DefineInitializedData(String, Byte[], FieldAttributes) Method

Reference

Definition

Namespace:: System.Reflection.Emit

Assemblies:: netstandard.dll, System.Reflection.Emit.dll

Assembly:: System.Reflection.Emit.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Package:: System.Reflection.Emit v4.7.0

Source:: ModuleBuilder.cs

Source:: ModuleBuilder.cs

Source:: ModuleBuilder.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Defines an initialized data field in the .sdata section of the portable executable (PE) file.

public:
 System::Reflection::Emit::FieldBuilder ^ DefineInitializedData(System::String ^ name, cli::array <System::Byte> ^ data, System::Reflection::FieldAttributes attributes);

public System.Reflection.Emit.FieldBuilder DefineInitializedData(string name, byte[] data, System.Reflection.FieldAttributes attributes);

member this.DefineInitializedData : string * byte[] * System.Reflection.FieldAttributes -> System.Reflection.Emit.FieldBuilder

Public Function DefineInitializedData (name As String, data As Byte(), attributes As FieldAttributes) As FieldBuilder

Parameters

name: String

The name used to refer to the data. name cannot contain embedded nulls.

data: Byte[]

The binary large object (BLOB) of data.

attributes: FieldAttributes

The attributes for the field. The default is Static.

Returns

FieldBuilder

A field to reference the data.

Exceptions

ArgumentException

The length of name is zero.

-or-

The size of data is less than or equal to zero or greater than or equal to 0x3f0000.

ArgumentNullException

name or data is null.

InvalidOperationException

CreateGlobalFunctions() has been previously called.

Examples

The following example uses the DefineInitializedData method to define an initialized data field in the .sdata section of the portable executable (PE) file.

AppDomain^ currentDomain;
AssemblyName^ myAssemblyName;

// Get the current application domain for the current thread.
currentDomain = AppDomain::CurrentDomain;
myAssemblyName = gcnew AssemblyName;
myAssemblyName->Name = "TempAssembly";

// Define a dynamic assembly in the 'currentDomain'.
myAssemblyBuilder =
   currentDomain->DefineDynamicAssembly(
      myAssemblyName, AssemblyBuilderAccess::Run );

// Define a dynamic module in "TempAssembly" assembly.
myModuleBuilder = myAssemblyBuilder->DefineDynamicModule( "TempModule" );

// Define the initialized data field in the .sdata section of the PE file.
array<Byte>^ temp0 = {01,00,01};
FieldBuilder^ myFieldBuilder =
   myModuleBuilder->DefineInitializedData( "MyField", temp0,
      (FieldAttributes)(FieldAttributes::Static | FieldAttributes::Public) );
myModuleBuilder->CreateGlobalFunctions();

AppDomain currentDomain;
AssemblyName myAssemblyName;

// Get the current application domain for the current thread.
currentDomain = AppDomain.CurrentDomain;
myAssemblyName = new AssemblyName();
myAssemblyName.Name = "TempAssembly";

// Define a dynamic assembly in the 'currentDomain'.
myAssemblyBuilder =
   currentDomain.DefineDynamicAssembly
               (myAssemblyName, AssemblyBuilderAccess.Run);

// Define a dynamic module in "TempAssembly" assembly.
myModuleBuilder = myAssemblyBuilder.DefineDynamicModule("TempModule");

// Define the initialized data field in the .sdata section of the PE file.
FieldBuilder myFieldBuilder =
    myModuleBuilder.DefineInitializedData("MyField",new byte[]{01,00,01},
               FieldAttributes.Static|FieldAttributes.Public);
 myModuleBuilder.CreateGlobalFunctions();

Dim currentDomain As AppDomain
Dim myAssemblyName As AssemblyName
' Get the current application domain for the current thread.
currentDomain = AppDomain.CurrentDomain
myAssemblyName = New AssemblyName()
myAssemblyName.Name = "TempAssembly"
' Define a dynamic assembly in the 'currentDomain'.
myAssemblyBuilder = _
      currentDomain.DefineDynamicAssembly(myAssemblyName, AssemblyBuilderAccess.Run)
' Define a dynamic module in "TempAssembly" assembly.
myModuleBuilder = myAssemblyBuilder.DefineDynamicModule("TempModule")
' Define the initialized data field in the .sdata section of the PE file.
Dim myFieldBuilder As FieldBuilder = _
      myModuleBuilder.DefineInitializedData("MyField", New Byte() {1, 0, 1}, _
      FieldAttributes.Static Or FieldAttributes.Public)
myModuleBuilder.CreateGlobalFunctions()

Remarks

Static is automatically included in attributes.

The data defined by this method is not created until the CreateGlobalFunctions method is called.

Note

Starting with the .NET Framework 2.0 Service Pack 1, this member no longer requires ReflectionPermission with the ReflectionPermissionFlag.ReflectionEmit flag. (See Security Issues in Reflection Emit.) To use this functionality, your application should target the .NET Framework 3.5 or later.

Applies to

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0 (package-provided), 2.1

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