Clear() public méthode

public Clear ( ) : void
Résultat void
Exemple #1
0
        /// <summary>
        /// This function returns login and password of user for a passed NpgsqlConnection
        /// </summary>
        /// <param name="connection">the current opened DbConnection</param>
        /// <param name="login">returned login corresponding to the NpgsqlConnection passed</param>
        /// <param name="password">returned password corresponding to the NpgsqlConnection passed</param>
        /// <returns>true if succeed, false otherwise (connection null or not opened)</returns>
        public static bool GetConnectionInformationsFrom(
                                      IDbConnection connection,
                                      out string login,
                                      out string password)
        {
            login = string.Empty;
            password = string.Empty;

            if ((connection != null) && (connection.State == System.Data.ConnectionState.Open))
            {
                DbConnectionStringBuilder builder = new DbConnectionStringBuilder();
                builder.ConnectionString = connection.ConnectionString;

                if (builder != null)
                {
                    object value = null;
                    bool result = builder.TryGetValue("User Id", out value);
                    if (result)
                    {
                        login = value.ToString();
                    }

                    result &= builder.TryGetValue("Password", out value);
                    if (result)
                    {
                        password = value.ToString();
                    }

                    builder.Clear();
                    return result;
                }
            }

            return false;
        }
Exemple #2
0
        //private void Delete()
        //{
        //    Process proc = new Process();
        //    proc.StartInfo.CreateNoWindow = true;
        //    proc.StartInfo.FileName = "cmd.exe";
        //    proc.StartInfo.UseShellExecute = false;
        //    proc.StartInfo.RedirectStandardError = true;
        //    proc.StartInfo.RedirectStandardInput = true;
        //    proc.StartInfo.RedirectStandardOutput = true;
        //    proc.Start();
        //    proc.StandardInput.WriteLine("del " + m_strFilePathName.Substring(0, m_strFilePathName.Length - 3) + "ldb");
        //    proc.StandardInput.WriteLine("del " + m_strFilePathName);
        //    //proc.StandardInput.WriteLine("delete " + m_strPath + ".tmp.mdb");
        //    proc.Close();
        //}
        private bool Connect(string strFilePathName)
        {
            try
            {
                m_strFilePathName = strFilePathName;
                if (File.Exists(strFilePathName))
                {
                    try
                    {
                        File.Delete(strFilePathName);
                    }
                    catch (Exception ee)
                    {
                        //Delete();
                        strFilePathName += "_1.mdb";
                    }
                }

                try
                {
                    ADOX.Catalog catalog = new ADOX.Catalog();
                    catalog.Create("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + strFilePathName + ";Jet OLEDB:Engine Type=5");
                    System.Runtime.InteropServices.Marshal.FinalReleaseComObject(catalog.ActiveConnection);
                    System.Runtime.InteropServices.Marshal.FinalReleaseComObject(catalog);
                }
                catch (Exception ee)
                {
                }

                DbConnectionStringBuilder dcsBuilder = new DbConnectionStringBuilder();

                dcsBuilder.Clear();
                dcsBuilder.Add("Provider", "Microsoft.Jet.Oledb.4.0");
                dcsBuilder.Add("User ID", "Admin");
                dcsBuilder.Add("Password", "");
                dcsBuilder.Add("Data Source", @strFilePathName);

                m_pOleDbConnection = new OleDbConnection(dcsBuilder.ConnectionString);

                m_pOleDbConnection.Open();

                //m_pPolygonNodeTable = new PolygonNodeTable(m_pOleDbConnection, true);
                //m_pLineNodeExTable = new LineNodeExTable(m_pOleDbConnection, true);
                //m_pLineNodeTable = new LineNodeTable(m_pOleDbConnection, true);

                return true;
            }
            catch (Exception ex)
            {
                Logger.WriteErrorLog(ex);
            }
            return false;
        }