无法打开数据库“”；FingerPR”；登录时请求.登录失败.用户'；登录失败；NR-PCNR'；

我得到了这个异常：

异常：

无法打开登录请求的数据库"FingerPR"。登录失败。用户"NR-PC''NR"登录失败

我的连接字符串是

key="conn" value="Data Source=NR-PC'SQLEXPRESS;Initial Catalog=FingerPR;Integrated Security=True"

c#：

private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
    SqlConnection con1 = new SqlConnection(constring);
    SqlDataAdapter dsa = new SqlDataAdapter("Select cname,encrypt,fp,sip,fpath,id from msg", con1);
    DataSet ds = new DataSet();
    BindingSource bsourse = new BindingSource();
    SqlCommandBuilder cmd = new SqlCommandBuilder(dsa);
    dsa.Fill(ds, "msg");
    bsourse.DataSource = ds.Tables["msg"];
    dataGridView1.DataSource = bsourse;
    groupBox1.Visible = true;
    groupBox2.Visible = true;
    label1.Visible = true;
    dataGridView1.Visible = true;
    con1.Close();       
}