using System;
using System.Collections.Generic;
using
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace 链接数据库
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (textBox1.Text == "")
            {
                MessageBox.Show("数据库不能为空");
            }
            else
            {
                try
                {
                    //server=MRC-8CF94303A82\\MRNET;database=" + textBox1.Text.Trim() + ";uid=sa;pwd=111";
                    string sqlstr = "78N5FN4H3YXS3GZ;database=" + textBox1.Text.Trim() + ";uid=sa;pwd=****";
                    //\\MRNET:database=" + textBox1.Text.Trim() + ";uid=sa;pwd=forever1997+
                    SqlConnection conn = new SqlConnection(sqlstr);
                    conn.Open();
                    if (conn.State == ConnectionState.Open)
                    {
                        label2.Text = "连接"+textBox1.Text+"数据库成功";
                    }
                }
                catch
                {
                    label2.Text = "连接"+textBox1.Text+"数据库失败";
                }
            }
        }
    }
}



上面是代码，目前怀疑我的sqlServer配置的问题，SQL的密码和账号没有错误，请教各位一下，这个问题运行可能出现一些的问题，和解决方案