c#数据库连接初级入门

strconn 是连接数据库的连接字符串“Server=“要连接数据库所在机器的IP地址”;uid=sa;pwd=;database=数据库名称”

sqlcomm.ExecuteNonQuery();是执行sqlcomm.CommandText = "delete from lgx1 where userID = '"+this.textBox1.Text.Trim()+"'";中的SQL语句

string strconn = "Server=10.194.130.201;uid=sa;pwd=;database=lesson";
SqlConnection conn = new SqlConnection();
conn.ConnectionString = strconn;
conn.Open();
SqlCommand sqlcomm = conn.CreateCommand();
sqlcomm.CommandText = "delete from TableName where userID = '"+this.textBox1.Text.Trim()+"'";
sqlcomm.ExecuteNonQuery();
conn.Close();