配置ConnectionString以从SQL Server 2008中的不同域进行连接 [英] Configure ConnectionString for connect from different domain in SQL Server 2008

问题描述

我想从另一个域连接MS-SQL SERVER 2008的数据库。



MS-SQL Server 2008的ip是：192.168。 55.33

服务器名称：BDC\SQLEXPRESS

数据库名称：DMNG

登录：sa

密码：samsung001



我的App.config是：

I want to connect with MS-SQL SERVER 2008's Database from a different domain.

The ip of MS-SQL Server 2008 is: 192.168.55.33
Server Name: BDC\SQLEXPRESS
DataBase Name: DMNG
Login: sa
Password: samsung001

My App.config is:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <appSettings>
    <!--   User application and configured property settings go here.-->
    <!--   Example: <add key="settingName" value="settingValue"/> -->
    <add key="SqlConnectionString" value="Data Source=192.168.55.33\BDC\SQLEXPRESS;Initial Catalog=DMNG;UID=sa;Password=Support2010; Integrated Security=True;"/>

  </appSettings>
</configuration>

我的SqlConnectoin.cs是：

My SqlConnectoin.cs is:

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.IO;

namespace DMNG_Management
{
    public class SqlDBAccess
    {
        #region Variables
        private string _connectionString;
        private string _databaseName;
        private string _serverName;
        private string _userName;
        private string _password;
        public SqlConnection connection = new SqlConnection();
        public SqlCommand command = new SqlCommand();
        private SqlDataAdapter adapter = new SqlDataAdapter();
        private SqlDataReader reader;
        public DataSet dataSet = new DataSet();
        private DataTable dataTable = new DataTable();
        private SqlCommandBuilder commandBld = new SqlCommandBuilder();
        public SqlTransaction transaction = null;
        private Object obj;
        #endregion
        #region Properties
        public string ConnectionString
        {
            set
            {
                _connectionString = value;

            }
            get
            {
                return _connectionString;
            }
        }
        public string DatabaseName
        {
            set
            {
                _databaseName = value;
                connection.ChangeDatabase(_databaseName);
            }
            get
            {
                return _databaseName;
            }
        }
        public string ServerName
        {
            set
            {
                _serverName = value;
            }
            get
            {
                return _serverName;
            }
        }
        public string UserName
        {
            set
            {
                _userName = value;
            }
            get
            {
                return _userName;
            }
        }
        public string Password
        {
            set
            {
                _password = value;
            }
            get
            {
                return _password;
            }
        }
        #endregion
        #region Constructor
        public SqlDBAccess()
        {
            _connectionString = ConfigurationSettings.AppSettings["Server"];         //"server=(local);database = db_IFRMS;persist Security Info=False;user=sa;password=@pwd99$02!;connect Timeout=5";
            //DecriptString();
        }
        public SqlDBAccess(string conStr)
        {
            _connectionString = conStr;
            //DecriptString();
        }
        #endregion
        #region Security Methods
        private void DecriptString()
        {
            string[] parts = _connectionString.Split(';');
            string[] words = parts[0].Split('=');
            _serverName = words[1].Trim();
            words = parts[1].Split('=');
            _databaseName = words[1].Trim();
            words = parts[3].Split('=');
            _userName = words[1].Trim();
            words = parts[4].Split('=');
            _password = words[1].Trim();

        }
        #endregion
        #region Connection Method
        public void OpenConnection()
        {
            try
            {
                if (!(connection.State.ToString() == "Open"))
                {
                    connection.ConnectionString = _connectionString;
                    connection.Open();
                }
            }
            catch (SqlException ex)
            {
                Log("Error in open connection", ex);
                throw ex;
            }
            catch (Exception ex)
            {
                Log("Error in open connection", ex);
                throw ex;

            }
        }
        public void CloseConnection()
        {
            try
            {
                if (connection.State.ToString() == "Open")
                    connection.Close();
            }
            catch (SqlException ex)
            {
                Log("Error in close connection", ex);
                throw new ApplicationException("Error in close connection", ex);

            }
            catch (Exception ex)
            {
                Log("Error in close connection", ex);
                throw new ApplicationException("Error in close connection", ex);
            }
        }
        #endregion
        #region ExecuteNonQuery
        public int ExecuteNonQuery(string sqlStmt)
        {
            OpenConnection();
            int rowCount = 0;
            try
            {
                transaction = connection.BeginTransaction();
                command.CommandText = sqlStmt;
                command.Connection = connection;
                command.CommandType = CommandType.Text;
                command.Transaction = transaction;
                rowCount = command.ExecuteNonQuery();
                transaction.Commit();
            }
            catch (SqlException ex)
            {
                if (transaction != null)
                    transaction.Rollback();
                Log("Error in ExecuteQuery", ex);
                throw new ApplicationException(ex.Message);

            }
            catch (Exception ex)
            {
                if (transaction != null)
                    transaction.Rollback();
                Log("Error in ExecuteQuery", ex);
                throw ex;
            }
            finally
            {
                CloseConnection();
            }
            return rowCount;
        }
        public int ExecuteNonQuery(string sqlStmt, bool IsStoredProcedure)
        {
            OpenConnection();
            int rowCount = 0;
            try
            {
                transaction = connection.BeginTransaction();
                command.CommandText = sqlStmt;
                command.Connection = connection;
                if (IsStoredProcedure)
                    command.CommandType = CommandType.StoredProcedure;
                else
                    command.CommandType = CommandType.Text;
                command.Transaction = transaction;
                rowCount = command.ExecuteNonQuery();
                transaction.Commit();
            }
            catch (SqlException ex)
            {
                if (transaction != null)
                    transaction.Rollback();
                throw new ApplicationException(ex.Message);
            }
            finally
            {
                CloseConnection();
                command.Parameters.Clear();
            }
            return rowCount;

        }
        public int ExecuteMulNonQuery(string sqlStmt)
        {
            int rowCount = 0;
            try
            {
                command.CommandText = sqlStmt;
                command.Connection = connection;
                command.CommandType = CommandType.Text;
                rowCount = command.ExecuteNonQuery();
            }
            catch (SqlException ex)
            {
                throw new ApplicationException(ex.Message);
            }
            return rowCount;

        }
        #endregion
        #region Execute Reader Methods
        public SqlDataReader ExecuteReader(string sqlStmt)
        {
            try
            {
                OpenConnection();
                command.CommandText = sqlStmt;
                command.Connection = connection;
                command.CommandType = CommandType.Text;
                reader = command.ExecuteReader();

            }
            catch (SqlException ex)
            {
                throw new ApplicationException(ex.Message);
            }
            catch (Exception ex)
            {
                throw new ApplicationException(ex.Message);

            }
            return reader;

        }
        public SqlDataReader ExecuteReader(string sqlStmt, bool IsStoredProcedure)
        {
            OpenConnection();
            try
            {
                command.CommandText = sqlStmt;
                command.Connection = connection;
                if (IsStoredProcedure)
                    command.CommandType = CommandType.StoredProcedure;
                else
                    command.CommandType = CommandType.Text;
                reader = command.ExecuteReader();
            }
            catch (SqlException ex)
            {
                throw new ApplicationException(ex.Message);
            }
            catch (Exception ex)
            {
                throw new ApplicationException(ex.Message);
            }
            return reader;
        }
        public Object ExecuteScalar(string sqlStmt)
        {
            OpenConnection();
            try
            {
                command.CommandText = sqlStmt;
                command.Connection = connection;
                command.CommandType = CommandType.Text;
                obj = command.ExecuteScalar();

            }
            catch (SqlException ex)
            {
                throw new ApplicationException(ex.Message);
            }
            finally
            {
                CloseConnection();
            }
            return obj;
        }
        #endregion Reader Methods
        #region Adapter Methods
        public DataTable Adapter(string sqlStmt)
        {
            OpenConnection();
            try
            {
                command.CommandText = sqlStmt;
                command.Connection = connection;
                command.CommandType = CommandType.Text;
                adapter.SelectCommand = command;
                if (dataTable != null)
                    dataTable.Clear();
                adapter.Fill(dataTable);
                commandBld.DataAdapter = adapter;
            }
            catch (SqlException ex)
            {
                throw new ApplicationException(ex.Message);
            }
            finally
            {
                CloseConnection();
            }
            return dataTable;
        }
        public DataTable Adapter(string sqlStmt, bool IsStoredProcedure)
        {
            OpenConnection();
            try
            {
                command.CommandText = sqlStmt;
                command.Connection = connection;
                if (IsStoredProcedure)
                    command.CommandType = CommandType.StoredProcedure;
                else
                    command.CommandType = CommandType.Text;
                adapter.SelectCommand = command;
                if (dataTable != null)
                    dataTable.Clear();
                adapter.Fill(dataTable);
                commandBld.DataAdapter = adapter;
            }
            catch (SqlException ex)
            {
                throw new ApplicationException(ex.Message);
            }
            finally
            {
                CloseConnection();
                command.Parameters.Clear();
            }
            return dataTable;
        }
        public void Adapter(string sqlStmt, string tableName, bool IsStoredProcedure)
        {
            OpenConnection();
            try
            {
                command.CommandText = sqlStmt;
                command.Connection = connection;
                if (IsStoredProcedure)
                    command.CommandType = CommandType.StoredProcedure;
                else
                    command.CommandType = CommandType.Text;
                adapter.SelectCommand = command;
                if (dataSet.Tables[tableName] != null)
                    dataSet.Tables[tableName].Clear();
                adapter.Fill(dataSet, tableName);
                commandBld.DataAdapter = adapter;
            }
            catch (SqlException ex)
            {
                throw new ApplicationException(ex.Message);
            }
            finally
            {
                CloseConnection();
                command.Parameters.Clear();
            }
        }
        public void Adapter(string sqlStmt, string tableName)
        {
            OpenConnection();
            try
            {
                command.CommandText = sqlStmt;
                command.Connection = connection;
                command.CommandType = CommandType.Text;
                adapter.SelectCommand = command;
                if (dataSet.Tables[tableName] != null)
                    dataSet.Tables[tableName].Clear();
                adapter.Fill(dataSet, tableName);
                commandBld.DataAdapter = adapter;
            }
            catch (SqlException ex)
            {
                throw new ApplicationException(ex.Message);
            }
            finally
            {
                CloseConnection();
            }
        }
        public void Adapter(string sqlStmt, DataTable table)
        {

            try
            {
                OpenConnection();
                command.CommandText = sqlStmt;
                command.Connection = connection;
                command.CommandType = CommandType.Text;
                adapter.SelectCommand = command;
                adapter.Fill(table);
                commandBld.DataAdapter = adapter;

            }
            catch (SqlException ex)
            {
                throw new ApplicationException(ex.Message);

            }
            catch (Exception ex)
            {
                throw new ApplicationException(ex.Message);

            }
            finally
            {
                CloseConnection();
            }
        }
        public void Adapter(string sqlStmt, DataTable table, bool IsStoredProcedure)
        {
            OpenConnection();
            try
            {
                command.CommandText = sqlStmt;
                command.Connection = connection;
                adapter.SelectCommand = command;
                if (IsStoredProcedure)
                    command.CommandType = CommandType.StoredProcedure;
                else
                    command.CommandType = CommandType.Text;
                adapter.Fill(table);
                commandBld.DataAdapter = adapter;

            }
            catch (SqlException ex)
            {
                throw new ApplicationException(ex.Message);
            }
            catch (Exception ex)
            {
                throw new ApplicationException(ex.Message);

            }
            finally
            {
                CloseConnection();
                command.Parameters.Clear();
            }
        }
        public void DataSetToDB(DataTable table)
        {
            OpenConnection();
            try
            {
                adapter.Update(table);
                dataSet.AcceptChanges();
            }
            catch (SqlException ex)
            {
                throw new ApplicationException(ex.Message);
            }
            finally
            {
                CloseConnection();
            }
        }
        #endregion Adapter Methods
        #region Error Log Methods
        public static void Log(string Message)
        {
            Log(Message, null);
        }
        public static void Log(string Message, Exception Ex)
        {
            string fileName = Environment.CurrentDirectory + "\\" + "Error.log";
            using (StreamWriter logFile = new StreamWriter(fileName, true))
            {
                logFile.WriteLine("{0}: {1}", DateTime.Now, Message);
                if (Ex != null)
                    logFile.WriteLine(Ex.ToString());
                logFile.Close();
            }
        }
        #endregion Error Log Methods
    }
}

现在，当我尝试连接数据库时，我收到System.Data.SqlClient.SqlError的异常：网络相关问题。



请帮我解决这个问题。

谢谢。

Now I am getting Exception for System.Data.SqlClient.SqlError: "A Network Related Problem" when I am trying to connect with my database.

Please help me to solve this problem.
Thank you.

推荐答案

02 !; connect Timeout = 5;
// DecriptString（）;
}
public SqlDBAccess（ string conStr）
{
_connectionString = conStr;
/ / DecriptString（）;
}
#endregion
#region安全方法
private void DecriptString（）
{
string [] parts = _connectionString.Split（' ;'）;
string [] words = parts [ 0 ]。分割（' ='）;
_serverName = words[1].Trim();
words = parts[1].Split('=');
_databaseName = words[1].Trim();
words = parts[3].Split('=');
_userName = words[1].Trim();
words = parts[4].Split('=');
_password = words[1].Trim();

}
#endregion
#region Connection Method
public void OpenConnection()
{
try
{
if (!(connection.State.ToString() == \"Open\"))
{
connection.ConnectionString = _connectionString;
connection.Open（）;
}
}
catch (SqlException ex)
{
Log(\"Error in open connection\", ex);
throw ex;
}
catch (Exception ex)
{
Log(\"Error in open connection\", ex);
throw ex;

}
}
public void CloseConnection()
{
try
{
if (connection.State.ToString() == \"Open\")
connection.Close();
}
catch (SqlException ex)
{
Log(\"Error in close connection\", ex);
throw new ApplicationException(\"Error in close connection\", ex);

}
catch (Exception ex)
{
Log(\"Error in close connection\", ex);
throw new ApplicationException(\"Error in close connection\", ex);
}
}
#endregion
#region ExecuteNonQuery
public int ExecuteNonQuery(string sqlStmt)
{
OpenConnection();
int rowCount = 0;
try
{
transaction = connection.BeginTransaction();
command.CommandText = sqlStmt;
command.Connection = connection;
command.CommandType = CommandType.Text;
command.Transaction = transaction;
rowCount = command.ExecuteNonQuery();
transaction.Commit();
}
catch (SqlException ex)
{
if (transaction != null)
transaction.Rollback();
Log(\"Error in ExecuteQuery\", ex);
throw new ApplicationException(ex.Message);

}
catch (Exception ex)
{
if (transaction != null)
transaction.Rollback();
Log(\"Error in ExecuteQuery\", ex);
throw ex;
}
最后
{
CloseConnection（）;
}
return rowCount;
}
public int ExecuteNonQuery(string sqlStmt, bool IsStoredProcedure)
{
OpenConnection();
int rowCount = 0;
try
{
transaction = connection.BeginTransaction();
command.CommandText = sqlStmt;
command.Connection = connection;
if (IsStoredProcedure)
command.CommandType = CommandType.StoredProcedure;
else
command.CommandType = CommandType.Text;
command.Transaction = transaction;
rowCount = command.ExecuteNonQuery();
transaction.Commit();
}
catch (SqlException ex)
{
if (transaction != null)
transaction.Rollback();
throw new ApplicationException(ex.Message);
}
最后
{
CloseConnection（）;
command.Parameters.Clear();
}
return rowCount;

}
public int ExecuteMulNonQuery(string sqlStmt)
{
int rowCount = 0;
try
{
command.CommandText = sqlStmt;
command.Connection = connection;
command.CommandType = CommandType.Text;
rowCount = command.ExecuteNonQuery();
}
catch (SqlException ex)
{
throw new ApplicationException(ex.Message);
}
return rowCount;

}
#endregion
#region Execute Reader Methods
public SqlDataReader ExecuteReader(string sqlStmt)
{
try
{
OpenConnection();
command.CommandText = sqlStmt;
command.Connection = connection;
command.CommandType = CommandType.Text;
reader = command.ExecuteReader（）;

}
catch (SqlException ex)
{
throw new ApplicationException(ex.Message);
}
catch (Exception ex)
{
throw new ApplicationException(ex.Message);

}
return reader;

}
public SqlDataReader ExecuteReader(string sqlStmt, bool IsStoredProcedure)
{
OpenConnection();
try
{
command.CommandText = sqlStmt;
command.Connection = connection;
if (IsStoredProcedure)
command.CommandType = CommandType.StoredProcedure;
else
command.CommandType = CommandType.Text;
reader = command.ExecuteReader（）;
}
catch (SqlException ex)
{
throw new ApplicationException(ex.Message);
}
catch (Exception ex)
{
throw new ApplicationException(ex.Message);
}
return reader;
}
public Object ExecuteScalar(string sqlStmt)
{
OpenConnection();
try
{
command.CommandText = sqlStmt;
command.Connection = connection;
command.CommandType = CommandType.Text;
obj = command.ExecuteScalar();

}
catch (SqlException ex)
{
throw new ApplicationException(ex.Message);
}
最后
{
CloseConnection（）;
}
return obj;
}
#endregion Reader Methods
#region Adapter Methods
public DataTable Adapter(string sqlStmt)
{
OpenConnection();
try
{
command.CommandText = sqlStmt;
command.Connection = connection;
command.CommandType = CommandType.Text;
adapter.SelectCommand = command;
if (dataTable != null)
dataTable.Clear();
adapter.Fill(dataTable);
commandBld.DataAdapter = adapter;
}
catch (SqlException ex)
{
throw new ApplicationException(ex.Message);
}
最后
{
CloseConnection（）;
}
return dataTable;
}
public DataTable Adapter(string sqlStmt, bool IsStoredProcedure)
{
OpenConnection();
try
{
command.CommandText = sqlStmt;
command.Connection = connection;
if (IsStoredProcedure)
command.CommandType = CommandType.StoredProcedure;
else
command.CommandType = CommandType.Text;
adapter.SelectCommand = command;
if (dataTable != null)
dataTable.Clear();
adapter.Fill(dataTable);
commandBld.DataAdapter = adapter;
}
catch (SqlException ex)
{
throw new ApplicationException(ex.Message);
}
最后
{
CloseConnection（）;
command.Parameters.Clear();
}
return dataTable;
}
public void Adapter(string sqlStmt, string tableName, bool IsStoredProcedure)
{
OpenConnection();
try
{
command.CommandText = sqlStmt;
command.Connection = connection;
if (IsStoredProcedure)
command.CommandType = CommandType.StoredProcedure;
else
command.CommandType = CommandType.Text;
adapter.SelectCommand = command;
if (dataSet.Tables[tableName] != null)
dataSet.Tables[tableName].Clear();
adapter.Fill(dataSet, tableName);
commandBld.DataAdapter = adapter;
}
catch (SqlException ex)
{
throw new ApplicationException(ex.Message);
}
最后
{
CloseConnection（）;
command.Parameters.Clear();
}
}
public void Adapter(string sqlStmt, string tableName)
{
OpenConnection();
try
{
command.CommandText = sqlStmt;
command.Connection = connection;
command.CommandType = CommandType.Text;
adapter.SelectCommand = command;
if (dataSet.Tables[tableName] != null)
dataSet.Tables[tableName].Clear();
adapter.Fill(dataSet, tableName);
commandBld.DataAdapter = adapter;
}
catch (SqlException ex)
{
throw new ApplicationException(ex.Message);
}
最后
{
CloseConnection（）;
}
}
public void Adapter(string sqlStmt, DataTable table)
{

try
{
OpenConnection();
command.CommandText = sqlStmt;
command.Connection = connection;
command.CommandType = CommandType.Text;
adapter.SelectCommand = command;
adapter.Fill(table);
commandBld.DataAdapter = adapter;

}
catch (SqlException ex)
{
throw new ApplicationException(ex.Message);

}
catch (Exception ex)
{
throw new ApplicationException(ex.Message);

}
finally
{
CloseConnection();
}
}
public void Adapter(string sqlStmt, DataTable table, bool IsStoredProcedure)
{
OpenConnection();
try
{
command.CommandText = sqlStmt;
command.Connection = connection;
adapter.SelectCommand = command;
if (IsStoredProcedure)
command.CommandType = CommandType.StoredProcedure;
else
command.CommandType = CommandType.Text;
adapter.Fill(table);
commandBld.DataAdapter = adapter;

}
catch (SqlException ex)
{
throw new ApplicationException(ex.Message);
}
catch (Exception ex)
{
throw new ApplicationException(ex.Message);

}
finally
{
CloseConnection();
command.Parameters.Clear();
}
}
public void DataSetToDB(DataTable table)
{
OpenConnection();
try
{
adapter.Update(table);
dataSet.AcceptChanges（）;
}
catch (SqlException ex)
{
throw new ApplicationException(ex.Message);
}
最后
{
CloseConnection（）;
}
}
#endregion Adapter Methods
#region Error Log Methods
public static void Log(string Message)
{
Log(Message, null);
}
public static void Log(string Message, Exception Ex)
{
string fileName = Environment.CurrentDirectory + \"\\\" + \"Error.log\";
using (StreamWriter logFile = new StreamWriter(fileName, true))
{
logFile.WriteLine(\"{0}: {1}\", DateTime.Now, Message);
if (Ex != null)
logFile.WriteLine(Ex.ToString());
logFile.Close();
}
}
#endregion Error Log Methods
}
}

02!;connect Timeout=5"; //DecriptString(); } public SqlDBAccess(string conStr) { _connectionString = conStr; //DecriptString(); } #endregion #region Security Methods private void DecriptString() { string[] parts = _connectionString.Split(';'); string[] words = parts[0].Split('='); _serverName = words[1].Trim(); words = parts[1].Split('='); _databaseName = words[1].Trim(); words = parts[3].Split('='); _userName = words[1].Trim(); words = parts[4].Split('='); _password = words[1].Trim(); } #endregion #region Connection Method public void OpenConnection() { try { if (!(connection.State.ToString() == "Open")) { connection.ConnectionString = _connectionString; connection.Open(); } } catch (SqlException ex) { Log("Error in open connection", ex); throw ex; } catch (Exception ex) { Log("Error in open connection", ex); throw ex; } } public void CloseConnection() { try { if (connection.State.ToString() == "Open") connection.Close(); } catch (SqlException ex) { Log("Error in close connection", ex); throw new ApplicationException("Error in close connection", ex); } catch (Exception ex) { Log("Error in close connection", ex); throw new ApplicationException("Error in close connection", ex); } } #endregion #region ExecuteNonQuery public int ExecuteNonQuery(string sqlStmt) { OpenConnection(); int rowCount = 0; try { transaction = connection.BeginTransaction(); command.CommandText = sqlStmt; command.Connection = connection; command.CommandType = CommandType.Text; command.Transaction = transaction; rowCount = command.ExecuteNonQuery(); transaction.Commit(); } catch (SqlException ex) { if (transaction != null) transaction.Rollback(); Log("Error in ExecuteQuery", ex); throw new ApplicationException(ex.Message); } catch (Exception ex) { if (transaction != null) transaction.Rollback(); Log("Error in ExecuteQuery", ex); throw ex; } finally { CloseConnection(); } return rowCount; } public int ExecuteNonQuery(string sqlStmt, bool IsStoredProcedure) { OpenConnection(); int rowCount = 0; try { transaction = connection.BeginTransaction(); command.CommandText = sqlStmt; command.Connection = connection; if (IsStoredProcedure) command.CommandType = CommandType.StoredProcedure; else command.CommandType = CommandType.Text; command.Transaction = transaction; rowCount = command.ExecuteNonQuery(); transaction.Commit(); } catch (SqlException ex) { if (transaction != null) transaction.Rollback(); throw new ApplicationException(ex.Message); } finally { CloseConnection(); command.Parameters.Clear(); } return rowCount; } public int ExecuteMulNonQuery(string sqlStmt) { int rowCount = 0; try { command.CommandText = sqlStmt; command.Connection = connection; command.CommandType = CommandType.Text; rowCount = command.ExecuteNonQuery(); } catch (SqlException ex) { throw new ApplicationException(ex.Message); } return rowCount; } #endregion #region Execute Reader Methods public SqlDataReader ExecuteReader(string sqlStmt) { try { OpenConnection(); command.CommandText = sqlStmt; command.Connection = connection; command.CommandType = CommandType.Text; reader = command.ExecuteReader(); } catch (SqlException ex) { throw new ApplicationException(ex.Message); } catch (Exception ex) { throw new ApplicationException(ex.Message); } return reader; } public SqlDataReader ExecuteReader(string sqlStmt, bool IsStoredProcedure) { OpenConnection(); try { command.CommandText = sqlStmt; command.Connection = connection; if (IsStoredProcedure) command.CommandType = CommandType.StoredProcedure; else command.CommandType = CommandType.Text; reader = command.ExecuteReader(); } catch (SqlException ex) { throw new ApplicationException(ex.Message); } catch (Exception ex) { throw new ApplicationException(ex.Message); } return reader; } public Object ExecuteScalar(string sqlStmt) { OpenConnection(); try { command.CommandText = sqlStmt; command.Connection = connection; command.CommandType = CommandType.Text; obj = command.ExecuteScalar(); } catch (SqlException ex) { throw new ApplicationException(ex.Message); } finally { CloseConnection(); } return obj; } #endregion Reader Methods #region Adapter Methods public DataTable Adapter(string sqlStmt) { OpenConnection(); try { command.CommandText = sqlStmt; command.Connection = connection; command.CommandType = CommandType.Text; adapter.SelectCommand = command; if (dataTable != null) dataTable.Clear(); adapter.Fill(dataTable); commandBld.DataAdapter = adapter; } catch (SqlException ex) { throw new ApplicationException(ex.Message); } finally { CloseConnection(); } return dataTable; } public DataTable Adapter(string sqlStmt, bool IsStoredProcedure) { OpenConnection(); try { command.CommandText = sqlStmt; command.Connection = connection; if (IsStoredProcedure) command.CommandType = CommandType.StoredProcedure; else command.CommandType = CommandType.Text; adapter.SelectCommand = command; if (dataTable != null) dataTable.Clear(); adapter.Fill(dataTable); commandBld.DataAdapter = adapter; } catch (SqlException ex) { throw new ApplicationException(ex.Message); } finally { CloseConnection(); command.Parameters.Clear(); } return dataTable; } public void Adapter(string sqlStmt, string tableName, bool IsStoredProcedure) { OpenConnection(); try { command.CommandText = sqlStmt; command.Connection = connection; if (IsStoredProcedure) command.CommandType = CommandType.StoredProcedure; else command.CommandType = CommandType.Text; adapter.SelectCommand = command; if (dataSet.Tables[tableName] != null) dataSet.Tables[tableName].Clear(); adapter.Fill(dataSet, tableName); commandBld.DataAdapter = adapter; } catch (SqlException ex) { throw new ApplicationException(ex.Message); } finally { CloseConnection(); command.Parameters.Clear(); } } public void Adapter(string sqlStmt, string tableName) { OpenConnection(); try { command.CommandText = sqlStmt; command.Connection = connection; command.CommandType = CommandType.Text; adapter.SelectCommand = command; if (dataSet.Tables[tableName] != null) dataSet.Tables[tableName].Clear(); adapter.Fill(dataSet, tableName); commandBld.DataAdapter = adapter; } catch (SqlException ex) { throw new ApplicationException(ex.Message); } finally { CloseConnection(); } } public void Adapter(string sqlStmt, DataTable table) { try { OpenConnection(); command.CommandText = sqlStmt; command.Connection = connection; command.CommandType = CommandType.Text; adapter.SelectCommand = command; adapter.Fill(table); commandBld.DataAdapter = adapter; } catch (SqlException ex) { throw new ApplicationException(ex.Message); } catch (Exception ex) { throw new ApplicationException(ex.Message); } finally { CloseConnection(); } } public void Adapter(string sqlStmt, DataTable table, bool IsStoredProcedure) { OpenConnection(); try { command.CommandText = sqlStmt; command.Connection = connection; adapter.SelectCommand = command; if (IsStoredProcedure) command.CommandType = CommandType.StoredProcedure; else command.CommandType = CommandType.Text; adapter.Fill(table); commandBld.DataAdapter = adapter; } catch (SqlException ex) { throw new ApplicationException(ex.Message); } catch (Exception ex) { throw new ApplicationException(ex.Message); } finally { CloseConnection(); command.Parameters.Clear(); } } public void DataSetToDB(DataTable table) { OpenConnection(); try { adapter.Update(table); dataSet.AcceptChanges(); } catch (SqlException ex) { throw new ApplicationException(ex.Message); } finally { CloseConnection(); } } #endregion Adapter Methods #region Error Log Methods public static void Log(string Message) { Log(Message, null); } public static void Log(string Message, Exception Ex) { string fileName = Environment.CurrentDirectory + "\\" + "Error.log"; using (StreamWriter logFile = new StreamWriter(fileName, true)) { logFile.WriteLine("{0}: {1}", DateTime.Now, Message); if (Ex != null) logFile.WriteLine(Ex.ToString()); logFile.Close(); } } #endregion Error Log Methods } }

Now I am getting Exception for System.Data.SqlClient.SqlError: \"A Network Related Problem\" when I am trying to connect with my database.



Please help me to solve this problem.

Thank you.

Now I am getting Exception for System.Data.SqlClient.SqlError: "A Network Related Problem" when I am trying to connect with my database.

Please help me to solve this problem.
Thank you.

Refer to this link..

Hope it may help..



http://blogs.msdn.com/b/sql_protocols/archive/2008/04/30/steps-to-troubleshoot-connectivity-issues.aspx

Refer to this link..
Hope it may help..

http://blogs.msdn.com/b/sql_protocols/archive/2008/04/30/steps-to-troubleshoot-connectivity-issues.aspx

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