OleDbError.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Data / System / Data / OleDb / OleDbError.cs / 1305376 / OleDbError.cs

                            //------------------------------------------------------------------------------ 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
// [....]
//----------------------------------------------------------------------------- 
 
namespace System.Data.OleDb {
 
    using System;
    using System.Data.Common;
    using System.Diagnostics;
    using System.Globalization; 
    using System.Runtime.InteropServices;
 
    [Serializable] 
    public sealed class OleDbError {
        readonly private string message; 
        readonly private string source;
        readonly private string sqlState;
        readonly private int nativeError;
 
        internal OleDbError(UnsafeNativeMethods.IErrorRecords errorRecords, int index) {
            OleDbHResult hr; 
            int lcid = System.Globalization.CultureInfo.CurrentCulture.LCID; 

            Bid.Trace("\n"); 
            UnsafeNativeMethods.IErrorInfo errorInfo = errorRecords.GetErrorInfo(index, lcid);
            if (null != errorInfo) {

                Bid.Trace("\n"); 
                hr = errorInfo.GetDescription(out this.message);
                Bid.Trace(" Message='%ls'\n", this.message); 
 
                if (OleDbHResult.DB_E_NOLOCALE == hr) { // MDAC 87303
                    Bid.Trace(" ErrorInfo\n"); 
                    Marshal.ReleaseComObject(errorInfo);

                    Bid.Trace("\n");
                    lcid = SafeNativeMethods.GetUserDefaultLCID(); 

                    Bid.Trace(" LCID=%d\n", lcid); 
                    errorInfo = errorRecords.GetErrorInfo(index, lcid); 

                    if (null != errorInfo) { 

                        Bid.Trace("\n");
                        hr = errorInfo.GetDescription(out this.message);
                        Bid.Trace(" Message='%ls'\n", this.message); 
                    }
                } 
                if ((hr < 0) && ADP.IsEmpty(this.message)) { 
                    this.message = ODB.FailedGetDescription(hr);
                } 
                if (null != errorInfo) {

                    Bid.Trace("\n");
                    hr = errorInfo.GetSource(out this.source); 
                    Bid.Trace(" Source='%ls'\n", this.source);
 
                    if (OleDbHResult.DB_E_NOLOCALE == hr) { // MDAC 87303 
                        Marshal.ReleaseComObject(errorInfo);
 
                        Bid.Trace("\n");
                        lcid = SafeNativeMethods.GetUserDefaultLCID();

                        Bid.Trace(" LCID=%d\n", lcid); 
                        errorInfo = errorRecords.GetErrorInfo(index, lcid);
 
                        if (null != errorInfo) { 

                            Bid.Trace("\n"); 
                            hr = errorInfo.GetSource(out this.source);
                            Bid.Trace(" Source='%ls'\n", this.source);
                        }
                    } 
                    if ((hr < 0) && ADP.IsEmpty(this.source)) {
                        this.source = ODB.FailedGetSource(hr); 
                    } 
                    Bid.Trace(" ErrorInfo\n");
                    Marshal.ReleaseComObject(errorInfo); 
                }
            }

            UnsafeNativeMethods.ISQLErrorInfo sqlErrorInfo; 

            Bid.Trace(" IID_ISQLErrorInfo\n"); 
            hr = errorRecords.GetCustomErrorObject(index, ref ODB.IID_ISQLErrorInfo, out sqlErrorInfo); 

            if (null != sqlErrorInfo) { 

                Bid.Trace("\n");
                this.nativeError = sqlErrorInfo.GetSQLInfo(out this.sqlState);
 
                Bid.Trace(" SQLErrorInfo\n");
                Marshal.ReleaseComObject(sqlErrorInfo); 
            } 
        }
 
        public string Message {
            get {
                string message = this.message;
                return ((null != message) ? message : ADP.StrEmpty); 
            }
        } 
 
        public int NativeError {
            get { 
                return this.nativeError;
            }
        }
 
        public string Source {
            get { 
                string source = this.source; 
                return ((null != source) ? source : ADP.StrEmpty);
            } 
        }

        public string SQLState {
            get { 
                string sqlState = this.sqlState;
                return ((null != sqlState) ? sqlState : ADP.StrEmpty); 
            } 
        }
 
        override public string ToString() {
            return Message;
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK