Errata for C# 5.0 in a Nutshell

Version	Location	Description
PDF	Page 50 1st & 5th row	There's an extra "W" in the "Example" column of first row. A "-", (dash), is used instead of "~", (tilde) as Bitwise complement in 5th row. Note from the Author or Editor: Remove the stray 'w' after 'sizeof(int)' Change the dash to a tilde in the fifth row: ~ Bitwise complement ~x Yes It's a tilde in the source document; it must have got changed during conversion.
PDF	Page 99 code sample of reimplementing an interface in a subclass	public class RichTextBox : TextBox, IUndoable { public new void Undo() { Console.WriteLine ("RichTextBox.Undo"); } } should be: public class RichTextBox : TextBox, IUndoable { public new void Undo() { Console.WriteLine ("RichTextBox.Undo"); } } It is illegal to declare Undo method with new modifier. The Undo method in derived class doesn't hide any method in it base class, since the explictily implemented Undo method is tranparent to TextBox. Note from the Author or Editor: Change public new void Undo() { Console.WriteLine ("RichTextBox.Undo"); } to: public void Undo() { Console.WriteLine ("RichTextBox.Undo"); } (delete the word 'new')
PDF	Page 159 above Overloading Equality and Comparison Operators	Shouldn't: Overloading an assignment operator automatically supports the corresponding compound assignment operator. Be: Overloading an operator automatically supports the corresponding compound assignment operator. I mean you can't overload assignment operator, right? Note from the Author or Editor: The sentence should read: Overloading an operator automatically overloads the corresponding compound assignment operator
Printed	Page 185 2nd example from the top	In the <include> example, the ending tag is </para> but should be </include>.
PDF	Page 416 Table showing results types for Average operator (8th paragraph)	The table shows (and the paragraph above it implies) that the result type of Average for a float selector is double, but I have verified that the output type of Average for a float selector is, in fact, float. Note from the Author or Editor: That sentence and table that follows should read as follows: Further, Average always returns either decimal, float or double, according to the following table: Selector type | Result type decimal | decimal float | float int, long, double | double (The table needs another row inserted for float, and the mention of float in the last row should be removed.)
PDF	Page 427 2nd paragraph (just after "Here�s the result of that last Console.WriteLine:")	The example output is missing a closing angle bracket (>). Note from the Author or Editor: The last line should end with a right angle bracket: </configuration>
PDF	Page 445 3rd paragraph (before "Prefixes" heading)	There is an erroneous "s" character after the quoted string "OReilly.Nutshell.CSharp" in the XML snippet (it's the second XML snippet on the page). Note from the Author or Editor: Delete the extraneous 's' character so it reads: <customer xmlns="OReilly.Nutshell.CSharp">
PDF	Page 461 bottom of the page	"ReadStartElement verifies that the current NodeType is StartElement" There is no such member as StartElement in the XmlNodeType enum. It should be just Element. Note from the Author or Editor: Correct: replace StartElement with Element.
PDF	Page 477 First paragraph	XLST written for XSLT
Printed	Page 478 .	XDocument doc = XDocument.Load (@"Customers.xml"); XElement e = e.XPathSelectElement ("customers/customer[firstname='Jim']"); // Here is mistake! I think it should be: XElement e = doc.XPathSelectElement ... Note from the Author or Editor: Correct: change 'e.XPathSelectElement...' to 'doc.XPathSelectElement...'
PDF	Page 484 6th paragraph (near bottom of page)	XLST written for XSLT
Printed, PDF	Page 562 Bottom paragraph	In method Void UpdateMessage(string message), the line should read // Marshal the delegate to the UI thread: _uiSyncContext.Post(_ => txtMessage.Text = message, null); null is missing. Note from the Author or Editor: Correct: replace _uiSyncContext.Post (_ => txtMessage.Text = message); with _uiSyncContext.Post (_ => txtMessage.Text = message, null);
PDF	Page 565 5th paragraph, starting "The Task class helps with all of these problems."	The word "avoid" should be 3rd person singular: "avoids". Context: "...and with a TaskCompletionSource, they can leverage a callback approach that avoid threads altogether while waiting on I/O-operations." Should read: "...that avoids threads altogether...".
Printed	Page 568 4th paragraph	replace OperationCancelledOperation with OperationCancelledException Note from the Author or Editor: Change OperationCanceledOperation to OperationCanceledException Note also that there's one 'l' in canceled.
PDF	Page 572 2nd paragraph	The third sentence in the paragraph begins: "We can write this without a thread through use the Timer class" The word "use" should probably be removed, or possibly "through use" should be changed to "by using". Note from the Author or Editor: Sure: change to "by using"
PDF	Page 572 3rd paragraph (after first code snippet)	The word "any" is repeated: "...we can write its results without any blocking any thread:". The first "any" is a repetition typo to be removed.
PDF	Page 581 1st paragraph	Third line from top reads: "...change-of-thread does not affect order execution and is of little consequence...". It should have "of" between "order" and "execution": "order of execution".
PDF	Page 599 First code example	There is an undefined variable "someOperation" being referenced in the code example...I suspect that is meant to be a reference to the previously defined "task" variable. Note from the Author or Editor: Change 'someoperation' to 'task'
PDF	Page 629 Final paragraph	Before the parenthetical in the second sentence, "filesdata" should probably be changed to "data". At the end of the paragraph, "and the use asynchronous methods" should be something like "and using asynchronous methods".
PDF	Page 631 2nd paragraph	ZipFile class lives not in System.IO.Compression.dll, but in a System.IO.Compression.FileSystem.dll assembly. Also, the compression results from running examples in several previous sections should be updated. It seems that compressing algorithms were improved considerably in 4.5, so, for instance, thousand long empty array now compresses to mere 11 and not 113 bytes. Note from the Author or Editor: Replace System.IO.Compression.dll with System.IO.Compression.FileSystem.dll
PDF	Page 664 Concrete class listing under "Uploading data and HttpContent" header	"StreamContent" is listed twice, one of these should be "StringContent". Note from the Author or Editor: Change the second item from StreamContent to StringContent
Printed	Page 664 2nd paragraph	2nd paragraph says 'HttpResponseMessage has a CopyToAsync method for writing ... Actually it is the HttpContent class, not HttpResponseMessage, that has the CopyToAsync method being discussed. Note from the Author or Editor: Correct. Replace: HttpResponseMessage has a CopyToAsync method... with: HttpContent has a CopyToAsync method...
Printed	Page 859 Paragraph near the top	It seems MSDN refers to UAC as User 'Account' Control, not User 'Access' Control as shown near top of the page.
Printed	Page 963 2nd paragraph from the top	The 2nd paragraph starts with: 'This enables monitoring for the current domain'. According to MSDN write up on MonitoringIsEnabled = true, it means 'monitoring is enabled for all application domains for the current process'. Note from the Author or Editor: Change 'domain' to 'process'
Printed	Page 979 Middle paragraph	In the middle paragraph that starts with 'The fixed directive...', a sentence near the end says: 'Unlike with standard C# array, NumberArray is not...' It seems 'NumberArray' should be 'Numbers'. Note from the Author or Editor: Change "NumberArray" to "Numbers"
PDF	Page 985 Code sample at bottom of page	The third statement in the Main() function has: Workbook workBook = excel.Workbooks.Add(); Since in the "usings" above we alias Microsoft.Office.Interop.Excel as "Excel", this line should actually read: Excel.Workbook workBook = excel.Workbooks.Add(); In order to compile correctly. Note from the Author or Editor: Change: Workbook workBook = excel.Workbooks.Add(); to Excel.Workbook workBook = excel.Workbooks.Add(); And in the listing below, change Workbook workBook = excel.Workbooks.Add (missing); to Excel.Workbook workBook = excel.Workbooks.Add (missing);
Printed	Page 985 2 places around middle of page	On pages 985, 988, and possibly other pages, there are references to the type library importer tool 'tlimp.exe'. According to MSDN that should be 'tlbimp.exe' (missing the 'b')
Printed	Page 993 First code listing	Change the first line of the code listing from: Regex r = new Regex (@"sausages?"); to: Regex r = new Regex (@"sausages?" , RegexOptions.Compiled); And in the paragraph that follows, change : This is not just a syntactic convenience: under the covers, a RegEx instance uses lightweight code generation... to: RegexOptions.Compiled instructs the RegEx instance to use lightweight code generation...
PDF	Page 994 Table 26-1	In the Table 26-1 "Regular expression" there's entry with following text: Enum value: Compiled Regular expressions code: c Decription: Forces compilation of regular expression to IL There's NO such inline option. It exists only when using constructor (http://msdn.microsoft.com/en-us/library/h5845fdz.aspx). Here are all legal options: http://msdn.microsoft.com/en-us/library/yd1hzczs.aspx. Note from the Author or Editor: Delete the 'c' from the table (4th row, second column)
PDF	Page 995 Character Sets Expression/Meaning table	The table shows the regular expression \s as "same as" expression [\n\\r\t\f]...this is not true, since \s also will match a space character and [\n\r\t\f] will not...easily fixed by adding a space into that set: [\n\r\t\f ] Note from the Author or Editor: Replace [\n\r\t\f] with [\n\r\t\f\v ] (note space near end)
PDF	Page 995 Character Sets Expression/Meaning table	Actually, \s also matches the vertical tab (\v), so it should be something like: [\n\r\t\f\v ] Note from the Author or Editor: Replace [\n\r\t\f] with [\n\r\t\f\v ] (note the space near the end)
PDF	Page 1000 First code example	The output of the first example snippet has "In" as the second word, but it should be "in" (lowercase i)
Printed, PDF	Page 1007 Table 26-3 (Character Sets)	The table shows the regular expression \s as "same as" expression [\n\r\t\f]...this is not true, since \s also will match a space character as well as a vertical tab and [\n\r\t\f] will not...easily fixed by adding these characters into that set: [\n\r\t\f\v ] Note from the Author or Editor: Replace [\n\r\t\f] with [\n\r\t\f\v ]
PDF	Page 1043 4th Paragraph	Paragraph ends: "...often they will lay eggs directly on the ground, protected only spotted vegetation." This is grammatically incorrect, it should possibly read something like "protected only by spotted vegetation"...or something