Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Data/System/Data/SqlClient/SqlError.cs

@@ -0,0 +1,101 @@
+//------------------------------------------------------------------------------
+// <copyright file="SqlError.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+// <owner current="true" primary="true">[....]</owner>
+// <owner current="true" primary="false">[....]</owner>
+//------------------------------------------------------------------------------
+
+namespace System.Data.SqlClient {
+
+    using System;
+    using System.Diagnostics;
+    using System.Globalization;
+
+    [Serializable]
+    public sealed class SqlError {
+
+        // bug fix - MDAC 48965 - missing source of exception
+        // fixed by [....]
+        private string source = TdsEnums.SQL_PROVIDER_NAME;
+        private int    number;
+        private byte   state;
+        private byte   errorClass;
+        [System.Runtime.Serialization.OptionalFieldAttribute(VersionAdded=2)]
+        private string server;
+        private string message;
+        private string procedure;
+        private int    lineNumber;
+        [System.Runtime.Serialization.OptionalFieldAttribute(VersionAdded=4)]
+        private int win32ErrorCode;
+
+        internal SqlError(int infoNumber, byte errorState, byte errorClass, string server, string errorMessage, string procedure, int lineNumber, uint win32ErrorCode)
+            : this(infoNumber, errorState, errorClass, server, errorMessage, procedure, lineNumber)
+        {
+            this.win32ErrorCode = (int)win32ErrorCode;
+        }
+
+        internal SqlError(int infoNumber, byte errorState, byte errorClass, string server, string errorMessage, string procedure, int lineNumber) {
+            this.number = infoNumber;
+            this.state = errorState;
+            this.errorClass = errorClass;
+            this.server = server;
+            this.message = errorMessage;
+            this.procedure = procedure;
+            this.lineNumber = lineNumber;
+            if (errorClass != 0) {
+                Bid.Trace("<sc.SqlError.SqlError|ERR> infoNumber=%d, errorState=%d, errorClass=%d, errorMessage='%ls', procedure='%ls', lineNumber=%d\n" ,
+                    infoNumber, (int)errorState, (int)errorClass,  errorMessage,
+                    procedure == null ? "None" : procedure, (int)lineNumber);
+            }
+            this.win32ErrorCode = 0;
+        }
+
+        // bug fix - MDAC #49280 - SqlError does not implement ToString();
+        // I did not include an exception stack because the correct exception stack is only available 
+        // on SqlException, and to obtain that the SqlError would have to have backpointers all the
+        // way back to SqlException.  If the user needs a call stack, they can obtain it on SqlException.
+        public override string ToString() {
+            //return this.GetType().ToString() + ": " + this.message;
+            return typeof(SqlError).ToString() + ": " + this.message; // since this is sealed so we can change GetType to typeof
+        }
+
+        // bug fix - MDAC #48965 - missing source of exception
+        // fixed by [....]
+        public string Source {
+            get { return this.source;}
+        }
+
+        public int Number {
+            get { return this.number;}
+        }
+
+        public byte State {
+            get { return this.state;}
+        }
+
+        public byte Class {
+            get { return this.errorClass;}
+        }
+
+        public string Server {
+            get { return this.server;}
+        }
+
+        public string Message {
+            get { return this.message;}
+        }
+
+        public string Procedure {
+            get { return this.procedure;}
+        }
+
+        public int LineNumber {
+            get { return this.lineNumber;}
+        }
+
+        internal int Win32ErrorCode {
+            get { return this.win32ErrorCode; }
+        }
+    }
+}