The following ERROR occurs win trying to run the following code as it appears in the Pro C# 2010 and the .NET 4 Platform 5th Edition from Apress on page 357. I have the .NET 4.5 installed in Windows 7 Ult. Version. Is this the wrong place to be asking this question? Should I be looking at the Errata for the book? Has the "Sort" Method been mover to another Library?
Array.Sort(myAutos);
Below is the InvalidOperationException Details ->{"Failed to compare two elements in the array."}
Why is this error occuring? Do I have a corrupt file and if this is the case where can I get a new file?
System.InvalidOperationException was unhandledHResult=-2146233079
Message=Failed to compare two elements in the array.
Source=mscorlib
StackTrace:
at System.Collections.Generic.ArraySortHelper`1.Sort(T[] keys, Int32 index, Int32 length, IComparer`1 comparer)
at System.Array.Sort[T](T[] array, Int32 index, Int32 length, IComparer`1 comparer)
at System.Array.Sort[T](T[] array)
at ComparableCar.Program.Main(String[] args) in C:\Users\Mark\documents\visual studio 2010\Projects\ComparableCar\ComparableCar\Program.cs:line 29
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException: System.ArgumentException
HResult=-2147024809
Message=At least one object must implement IComparable.
Source=mscorlib
StackTrace:
at System.Collections.Comparer.Compare(Object a, Object b)
at System.Collections.Generic.ObjectComparer`1.Compare(T x, T y)
at System.Collections.Generic.ArraySortHelper`1.SwapIfGreater(T[] keys, IComparer`1 comparer, Int32 a, Int32 b)
at System.Collections.Generic.ArraySortHelper`1.DepthLimitedQuickSort(T[] keys, Int32 left, Int32 right, IComparer`1 comparer, Int32 depthLimit)
at System.Collections.Generic.ArraySortHelper`1.Sort(T[] keys, Int32 index, Int32 length, IComparer`1 comparer)
InnerException:
