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.NET Framework 3.5
 GenerateInMemory Property
This page is specific to
Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:
.NET Framework Class Library
CompilerParameters..::.GenerateInMemory Property

Updated: November 2007

Gets or sets a value indicating whether to generate the output in memory.

Namespace:  System.CodeDom.Compiler
Assembly:  System (in System.dll)

Visual Basic (Declaration)
Public Property GenerateInMemory As Boolean
Visual Basic (Usage)
Dim instance As CompilerParameters
Dim value As Boolean

value = instance.GenerateInMemory

instance.GenerateInMemory = value
C#
public bool GenerateInMemory { get; set; }
Visual C++
public:
property bool GenerateInMemory {
    bool get ();
    void set (bool value);
}
J#
/** @property */
public boolean get_GenerateInMemory()
/** @property */
public  void set_GenerateInMemory(boolean value)
JScript
public function get GenerateInMemory () : boolean
public function set GenerateInMemory (value : boolean)

Property Value

Type: System..::.Boolean

true if the compiler should generate the output in memory; otherwise, false.

The following example illustrates using CompilerParameters to specify various compiler settings and options. This code example is part of a larger example provided for the CompilerParameters class.

Visual Basic
Public Shared Function CompileCode(ByVal provider As CodeDomProvider, _
ByVal sourceFile As String, ByVal exeFile As String) As Boolean

    Dim cp As New CompilerParameters()

    ' Generate an executable instead of 
    ' a class library.
    cp.GenerateExecutable = True

    ' Set the assembly file name to generate.
    cp.OutputAssembly = exeFile

    ' Generate debug information.
    cp.IncludeDebugInformation = True

    ' Add an assembly reference.
    cp.ReferencedAssemblies.Add("System.dll")

    ' Save the assembly as a physical file.
    cp.GenerateInMemory = False

    ' Set the level at which the compiler 
    ' should start displaying warnings.
    cp.WarningLevel = 3

    ' Set whether to treat all warnings as errors.
    cp.TreatWarningsAsErrors = False

    ' Set compiler argument to optimize output.
    cp.CompilerOptions = "/optimize"

    ' Set a temporary files collection.
    ' The TempFileCollection stores the temporary files
    ' generated during a build in the current directory,
    ' and does not delete them after compilation.
    cp.TempFiles = New TempFileCollection(".", True)

    If provider.Supports(GeneratorSupport.EntryPointMethod) Then
        ' Specify the class that contains 
        ' the main method of the executable.
        cp.MainClass = "Samples.Class1"
    End If

    If provider.Supports(GeneratorSupport.Resources) Then
        ' Set the embedded resource file of the assembly.
        ' This is useful for culture-neutral resources, 
        ' or default (fallback) resources.
        cp.EmbeddedResources.Add("Default.resources")

        ' Set the linked resource reference files of the assembly.
        ' These resources are included in separate assembly files,
        ' typically localized for a specific language and culture.
        cp.LinkedResources.Add("nb-no.resources")
    End If

    ' Invoke compilation.
    Dim cr As CompilerResults = _
        provider.CompileAssemblyFromFile(cp, sourceFile)

    If cr.Errors.Count > 0 Then
        ' Display compilation errors.
        Console.WriteLine("Errors building {0} into {1}", _
            sourceFile, cr.PathToAssembly)
        Dim ce As CompilerError
        For Each ce In cr.Errors
            Console.WriteLine("  {0}", ce.ToString())
            Console.WriteLine()
        Next ce
    Else
        Console.WriteLine("Source {0} built into {1} successfully.", _
            sourceFile, cr.PathToAssembly)
        Console.WriteLine("{0} temporary files created during the compilation.", _
                cp.TempFiles.Count.ToString())
    End If

    ' Return the results of compilation.
    If cr.Errors.Count > 0 Then
        Return False
    Else
        Return True
    End If
End Function 'CompileCode


C#
public static bool CompileCode(CodeDomProvider provider, 
    String sourceFile, 
    String exeFile)
{

    CompilerParameters cp = new CompilerParameters();

    // Generate an executable instead of 
    // a class library.
    cp.GenerateExecutable = true;

    // Set the assembly file name to generate.
    cp.OutputAssembly = exeFile;

    // Generate debug information.
    cp.IncludeDebugInformation = true;

    // Add an assembly reference.
    cp.ReferencedAssemblies.Add( "System.dll" );

    // Save the assembly as a physical file.
    cp.GenerateInMemory = false;

    // Set the level at which the compiler 
    // should start displaying warnings.
    cp.WarningLevel = 3;

    // Set whether to treat all warnings as errors.
    cp.TreatWarningsAsErrors = false;

    // Set compiler argument to optimize output.
    cp.CompilerOptions = "/optimize";

    // Set a temporary files collection.
    // The TempFileCollection stores the temporary files
    // generated during a build in the current directory,
    // and does not delete them after compilation.
    cp.TempFiles = new TempFileCollection(".", true);

    if (provider.Supports(GeneratorSupport.EntryPointMethod))
    {
        // Specify the class that contains 
        // the main method of the executable.
        cp.MainClass = "Samples.Class1";
    }

    if (provider.Supports(GeneratorSupport.Resources))
    {
        // Set the embedded resource file of the assembly.
        // This is useful for culture-neutral resources, 
        // or default (fallback) resources.
        cp.EmbeddedResources.Add("Default.resources");

        // Set the linked resource reference files of the assembly.
        // These resources are included in separate assembly files,
        // typically localized for a specific language and culture.
        cp.LinkedResources.Add("nb-no.resources");
    }

    // Invoke compilation.
    CompilerResults cr = provider.CompileAssemblyFromFile(cp, sourceFile);

    if(cr.Errors.Count > 0)
    {
        // Display compilation errors.
        Console.WriteLine("Errors building {0} into {1}",  
            sourceFile, cr.PathToAssembly);
        foreach(CompilerError ce in cr.Errors)
        {
            Console.WriteLine("  {0}", ce.ToString());
            Console.WriteLine();
        }
    }
    else
    {
        Console.WriteLine("Source {0} built into {1} successfully.",
            sourceFile, cr.PathToAssembly);
        Console.WriteLine("{0} temporary files created during the compilation.",
            cp.TempFiles.Count.ToString());

    }

    // Return the results of compilation.
    if (cr.Errors.Count > 0)
    {
        return false;
    }
    else 
    {
        return true;
    }
}

Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

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