TypeLoadException.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / TypeLoadException.cs / 1 / TypeLoadException.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*==============================================================================
** 
** Class: TypeLoadException 
**
** 
** Purpose: The exception class for type loading failures.
**
**
=============================================================================*/ 
namespace System {
 
    using System; 
    using System.Globalization;
    using System.Runtime.Remoting; 
    using System.Runtime.Serialization;
    using System.Runtime.CompilerServices;
    using System.Security.Permissions;
 
    [Serializable()]
[System.Runtime.InteropServices.ComVisible(true)] 
    public class TypeLoadException : SystemException, ISerializable { 

        public TypeLoadException() 
            : base(Environment.GetResourceString("Arg_TypeLoadException")) {
            SetErrorCode(__HResults.COR_E_TYPELOAD);
        }
 
        public TypeLoadException(String message)
            : base(message) { 
            SetErrorCode(__HResults.COR_E_TYPELOAD); 
        }
 
        public TypeLoadException(String message, Exception inner)
            : base(message, inner) {
            SetErrorCode(__HResults.COR_E_TYPELOAD);
        } 

        public override String Message 
        { 
            get {
                SetMessageField(); 
                return _message;
            }
        }
 
        private void SetMessageField()
        { 
            if (_message == null) { 
                if ((ClassName == null) &&
                    (ResourceId == 0)) 
                    _message = Environment.GetResourceString("Arg_TypeLoadException");

                else {
                    if (AssemblyName == null) 
                        AssemblyName = Environment.GetResourceString("IO_UnknownFileName");
                    if (ClassName == null) 
                        ClassName = Environment.GetResourceString("IO_UnknownFileName"); 

                    _message = String.Format(CultureInfo.CurrentCulture, GetTypeLoadExceptionMessage(ResourceId), ClassName, AssemblyName, MessageArg); 
                }
            }
        }
 
        public String TypeName
        { 
            get { 
                if (ClassName == null)
                    return String.Empty; 

                return ClassName;
            }
        } 

        // This is called from inside the EE. 
        private TypeLoadException(String className, 
                                  String assemblyName,
                                  String messageArg, 
                                  int    resourceId)
        : base(null)
        {
            SetErrorCode(__HResults.COR_E_TYPELOAD); 
            ClassName  = className;
            AssemblyName = assemblyName; 
            MessageArg = messageArg; 
            ResourceId = resourceId;
 
            // Set the _message field eagerly; debuggers look at this field to
            // display error info. They don't call the Message property.
            SetMessageField();
        } 

        protected TypeLoadException(SerializationInfo info, StreamingContext context) : base(info, context) { 
            if (info == null) 
                throw new ArgumentNullException("info");
 
            ClassName =  info.GetString("TypeLoadClassName");
            AssemblyName = info.GetString("TypeLoadAssemblyName");
            MessageArg = info.GetString("TypeLoadMessageArg");
            ResourceId = info.GetInt32("TypeLoadResourceID"); 
        }
 
        [MethodImplAttribute(MethodImplOptions.InternalCall)] 
        private static extern String GetTypeLoadExceptionMessage(int resourceId);
 
        //We can rely on the serialization mechanism on Exception to handle most of our needs, but
        //we need to add a few fields of our own.
        [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.SerializationFormatter)] 		
        public override void GetObjectData(SerializationInfo info, StreamingContext context) { 
            if (info == null)
                throw new ArgumentNullException("info"); 
 
            base.GetObjectData(info, context);
            info.AddValue("TypeLoadClassName", ClassName, typeof(String)); 
            info.AddValue("TypeLoadAssemblyName", AssemblyName, typeof(String));
            info.AddValue("TypeLoadMessageArg", MessageArg, typeof(String));
            info.AddValue("TypeLoadResourceID", ResourceId);
        } 

        // If ClassName != null, GetMessage will construct on the fly using it 
        // and ResourceId (mscorrc.dll). This allows customization of the 
        // class name format depending on the language environment.
        private String  ClassName; 
        private String  AssemblyName;
        private String  MessageArg;
        internal int    ResourceId;
    } 
}

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