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TypeBuilder.DefineField Method (String, Type, FieldAttributes)

Adds a new field to the type, with the given name, attributes, and field type.

Namespace:  System.Reflection.Emit
Assembly:  mscorlib (in mscorlib.dll)

member DefineField : 
        fieldName:string * 
        type:Type * 
        attributes:FieldAttributes -> FieldBuilder 


Type: System.String
The name of the field. fieldName cannot contain embedded nulls.
Type: System.Type
The type of the field
Type: System.Reflection.FieldAttributes
The attributes of the field.

Return Value

Type: System.Reflection.Emit.FieldBuilder
The defined field.


The length of fieldName is zero.


type is System.Void.


A total size was specified for the parent class of this field.


fieldName is a null reference (Nothing in Visual Basic).


The type was previously created using CreateType.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.