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protected void Page_Load(object sender, EventArgs e)
{
try
{
SqlConnection con = new SqlConnection();
con.ConnectionString = "server=.\\sqlexpress;database=DB_Library;uid=sa;pwd=sa123";
string strSql = "select *from manage where username='" + txtname.Text + "'and password='" + txtpwd.Text + "'";
con.Open();
SqlCommand cmd = new SqlCommand(strSql, con);
con.Close();
}
catch (SqlException sqle)
{
}
}
protected void btnOk_Click(object sender, EventArgs e)
{
string name = txtname.Text;
string pwd = txtpwd.Text;
bool i = db.CheckUser(name, pwd);
if (i>0 )
{
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