[Mono-bugs] [Bug 51060][Blo] New - Multiple indexers of the class cause to failure in XMLSerializer

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Changed by pavels@mainsoft.com.

http://bugzilla.ximian.com/show_bug.cgi?id=51060

--- shadow/51060	2003-11-17 03:18:16.000000000 -0500
+++ shadow/51060.tmp.4971	2003-11-17 03:18:16.000000000 -0500
@@ -0,0 +1,174 @@
+Bug#: 51060
+Product: Mono/Class Libraries
+Version: unspecified
+OS: All
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Blocker
+Component: System.XML
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: pavels@mainsoft.com               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Multiple indexers of the class cause to failure in XMLSerializer
+
+Please fill in this template when reporting a bug, unless you know what 
+you are doing.
+Description of Problem: Creating of XMLSerializarer fails when class 
+provided as parameter contains multiple indexers that returns same value 
+and uses different number of parameters.
+
+
+Steps to reproduce the problem:
+1. You can either use attached program or create class with two indexers 
+with different number of parameters
+2. Run the following line: XmlSerializer serializer = new XmlSerializer
+(typeof(YOUR CLASS))
+3. 
+
+Actual Results:
+---------------
+Unhandled Exception: System.InvalidOperationException: The XML element 
+named 'Item' from namespace '' already present in the current scope. Use 
+XML attributes to specify another XML name or namespace for the element.
+in <0x006fa> System.Xml.Serialization.ClassMap:AddMember 
+(System.Xml.Serialization.XmlTypeMapMember)
+in <0x00303> 
+System.Xml.Serialization.XmlReflectionImporter:ImportClassMapping 
+(System.Type,System.Xml.Serialization.XmlRootAttribute,string)
+in <0x00106> 
+System.Xml.Serialization.XmlReflectionImporter:ImportTypeMapping 
+(System.Type,System.Xml.Serialization.XmlRootAttribute,string)
+in <0x000f0> System.Xml.Serialization.XmlSerializer:.ctor 
+(System.Type,System.Xml.Serialization.XmlAttributeOverrides,System.Type
+[],System.Xml.Serialization.XmlRootAttribute,string)
+in <0x00021> System.Xml.Serialization.XmlSerializer:.ctor (System.Type)
+in <0x0002d> XmlBug1.Class1:Main (string[])
+
+
+Expected Results:
+Should not fail
+
+How often does this happen? 
+Always
+
+Additional Information:
+Here is a code that cause a failure:
+
+
+using System;
+using System.Xml;
+using System.Xml.Serialization;
+
+namespace XmlBug1
+{
+	public class Class1
+	{
+		#region "Data members"
+		private object[] rows;
+		private int num_items;
+		private int num_rows;
+		#endregion
+
+		#region "Construction"
+		public Class1()
+		{
+			rows = new object[0];
+			num_items = 0;
+			num_rows = 0;
+		}
+		#endregion
+
+		#region "Indexers"
+		public object this [int a_row, int a_item]
+		{
+			get
+			{
+				try
+				{
+					return ((object[])rows[a_row])
+[a_item];
+				}
+				catch (IndexOutOfRangeException)
+				{
+					return null;
+				}
+				catch (ArgumentException)
+				{
+					return null;
+				}
+			}
+			set
+			{
+				((object[])rows[a_row])[a_item] = value;
+			}
+		}
+		public object this [int pos]
+		{
+			get
+			{
+				try
+				{
+					return ((object[])rows[pos])[pos];
+				}
+				catch (IndexOutOfRangeException)
+				{
+					return null;
+				}
+				catch (ArgumentException)
+				{
+					return null;
+				}
+			}
+			set
+			{
+				((object[])rows[pos])[pos] = value;
+			}
+		}
+		#endregion
+
+		#region "Properties"
+		[XmlArrayItem (ElementName="Row", Type = typeof(Object))]
+		[XmlArray()]
+		public object[] Rows
+		{
+			get
+			{
+				return rows;
+			}
+			set
+			{
+				rows = value;
+			}
+		}
+		[XmlIgnore]
+		public int NumOfItems
+		{
+			get
+			{
+				return ((object[])rows[0]).Length;
+			}
+		}
+		[XmlIgnore]
+		public int NumOfRows
+		{
+			get
+			{
+				return rows.Length;
+			}
+		}
+		#endregion
+
+		[STAThread]
+		static void Main(string[] args)
+		{
+			//Class1 myClass = new Class1();
+			XmlSerializer serializer = new XmlSerializer
+(typeof(XmlBug1.Class1));
+		}
+	}
+}