C#winform 怎么改造下列代码，
改造下列代码，将它改造成

通过这个代码来连接数据库，其他不变， server=176.16.0.33;uid=sa;password=sa;database=PDMIS

以下是源代码
//连接服务器，并获取连接字符串
private bool ConnectServer()
{
try
{
Desay.HR.Business.ConnectionString cs = new ConnectionString(txtServer.Text, Convert.ToInt32(numPort.Value));
connectionString = cs.GetConnectionStringByKey("PDMIS");
return true;
}
catch (Exception ex)
{
MessageBox.Show("服务器连接失败！\n失败描述：" + ex.Message, "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return false;
}

//TcpChannel channel = new TcpChannel();
//ChannelServices.RegisterChannel(channel, false);

//string uri = string.Format("tcp://{0}:{1}/DataService", txtServer.Text, numPort.Value);
//try
//{

// IDataService ds = (IDataService)Activator.GetObject(typeof(DataService), uri);
// connectionString = ds.GetDataServer();
// return true;
//}
//catch (Exception ex)
//{
// MessageBox.Show("服务器连接失败！\n失败描述：" + ex.Message, "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
// return false;

//}
//finally
//{
// ChannelServices.UnregisterChannel(channel);
//}
}
------解决方案--------------------

private bool ConnectServer()
{
try
{
//Desay.HR.Business.ConnectionString cs = new ConnectionString(txtServer.Text, Convert.ToInt32(numPort.Value));
connectionString = "Data Source=176.16.0.33;Initial Catalog=PDMIS;Persist Security Info=True;User ID=sa;Password=sa;"
return true;
}
catch (Exception ex)
{
MessageBox.Show("服务器连接失败！\n失败描述：" + ex.Message, "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return false;
}

[解决办法]

    private bool ConnectServer()
        {
            try
            {
                Desay.HR.Business.ConnectionString cs = new ConnectionString("176.16.0.33;uid=sa;password=sa;database=PDMIS
", Convert.ToInt32(numPort.Value));
                connectionString = cs.GetConnectionStringByKey("PDMIS");
                return true;
            }
            catch (Exception ex)
            {
                MessageBox.Show("服务器连接失败！\n失败描述：" + ex.Message, "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                return false;
            }

            //TcpChannel channel = new TcpChannel();
            //ChannelServices.RegisterChannel(channel, false);

            //string uri = string.Format("tcp://{0}:{1}/DataService", txtServer.Text, numPort.Value);
            //try
            //{

            //    IDataService ds = (IDataService)Activator.GetObject(typeof(DataService), uri); 
 
            //    connectionString = ds.GetDataServer();
            //    return true;
            //}
            //catch (Exception ex)
            //{
            //    MessageBox.Show("服务器连接失败！\n失败描述：" + ex.Message, "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
            //    return false;

            //}
            //finally
            //{
            //    ChannelServices.UnregisterChannel(channel);
            //}
        }

[解决办法]
SqlConnection sqlConn = new SqlConnection("="Data Source=176.16.0.33; Initial Catalog=PDMIS; User ID=sa; Password=sa;");




[解决办法]
应该在 ConnectionString 类中，如果你改不了，就用1楼的

connectionString = "Data Source=176.16.0.33;Initial Catalog=PDMIS;Persist Security Info=True;User ID=sa;Password=sa;"