[Mono-bugs] [Bug 79695][Min] New - Extra space characters issue when using System.Data.DataTable.Select

bugzilla-daemon at bugzilla.ximian.com bugzilla-daemon at bugzilla.ximian.com
Wed Oct 18 18:29:47 EDT 2006

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Changed by anagappan at novell.com.


--- shadow/79695	2006-10-18 18:29:47.000000000 -0400
+++ shadow/79695.tmp.8726	2006-10-18 18:29:47.000000000 -0400
@@ -0,0 +1,68 @@
+Bug#: 79695
+Product: Mono: Class Libraries
+Version: 1.1
+OS Details: OpenSuSE
+Status: NEW   
+Priority: Minor
+Component: Sys.Data
+AssignedTo: anagappan at novell.com                            
+ReportedBy: anagappan at novell.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+Summary: Extra space characters issue when using	System.Data.DataTable.Select
+Please fill in this template when reporting a bug, unless you know what you
+are doing.
+Description of Problem:
+Extra space characters issue when using	System.Data.DataTable.Select
+Steps to reproduce the problem:
+1. http://lists.ximian.com/pipermail/mono-devel-list/2006-October/020967.html
+Actual Results:
+No output displayed
+Expected Results:
+When running the above program, Mono outputs nothing, while MS .NET outputs
+How often does this happen? 
+Additional Information:
+It seems the MS runtime's DataTable.Select ignores any trailing spaces when
+evaluating expressions containing strings. Leading spaces are not ignored.
+Personally, without looking at the spec, I think Mono has the correct idea,
+but it's still a compatibility issue. When using fixed-length character
+fields in database tables, any extra room is normally filled with spaces.
+Test Program:
+using System;
+using System.Data;
+class Class1
+	static void Main(string[] args)
+	{
+		System.Data.DataTable dataTable = new
+		dataTable.Columns.Add("Name", typeof(string));
+		dataTable.Rows.Add(new object[] {"Mike "}); // notice the
+trailing space
+		foreach (System.Data.DataRow row in dataTable.Select("Name =
+			System.Console.WriteLine(row[0]);
+	}

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