[chenaz]

hi guys ,
as i mentioned, i had problem connecting to database. whenever i click run, error will occurse at my datasourcesaying(Error 1 Unrecognized escape sequence ) which is at this line

ata Source=AIZHONG-LAPTOP\SQLEXPRESS;Initial Catalog=test11;Integrated Security=True")

if i remove the \SQLexpress
another error occurred when i click the button. saying ( a network related instance. check the connection name or blablabla.)
i copy the orginal name from the database propertise which i don think is wrong. anyone is kind enough to enlighten me?

 protected void Button1_Click(object sender, EventArgs e)
        {
            SqlConnection conn = new SqlConnection("Data Source=AIZHONG-LAPTOP\SQLEXPRESS;Initial Catalog=test11;Integrated Security=True");
            SqlCommand cmd;
            SqlDataReader dr;
            conn.Open();
  cmd=new SqlCommand("select * from logg where name='"+ TextBox1.Text +"'and pass='"+TextBox2.Text +"'",conn);
        dr= cmd.ExecuteReader();

            if (dr.Read ())
            {
              Label3.Text="u are logged in";
            }

[Curtis Rutland]

That's because \ begins an escape sequence. \n is new line, \t is tab, \u+#### is a unicode character (if you replace the # with numbers). There are two ways to get around escape sequences: you can add another \ to your string. \\ escapes to \

Also, you can prefix your string with the @ character. That makes a string a "verbatim string", meaning that there will be no escaping performed.

Two examples:

string path = "c:\\dev\\test.txt";
string path2 = @"c:\dev\test.txt";

That should tell you enough to fix your code.