i have an xml file and i tried to run this code but it is saying impossible to convert the blancs spaces don't understand why

Base loginbutton_dick(object sender, EventArgs e) B a username 88 string username - UserlinetextBox.Text.ToString(); string password = PassordtextBox.Text.ToString(); Document doc = new XDocument(E..../passwords.1"); var loginCheck - doc.Descendants("password"). Where(x-> (string)x.Attribute("username") (string)x.Attribute("password") password); Leif (logincheck.Any()) { Form2 fres-new Form2(); fnews.Show(); else MessageBox.Show("error"); (Exception ex) 1 labelInvalid.Text. This error has occured: "tex.Messages Base loginbutton_dick(object sender, EventArgs e) B a username 88 string username - UserlinetextBox.Text.ToString(); string password = PassordtextBox.Text.ToString(); Document doc = new XDocument(E..../passwords.1"); var loginCheck - doc.Descendants("password"). Where(x-> (string)x.Attribute("username") (string)x.Attribute("password") password); Leif (logincheck.Any()) { Form2 fres-new Form2(); fnews.Show(); else MessageBox.Show("error"); (Exception ex) 1 labelInvalid.Text. This error has occured: "tex.Messages