數據庫到#c（用戶名和密碼）->錯誤

Question

我正在學校的一個項目上，但我收到一個錯誤：

“不支持的關鍵字：'集成安全性'”有人可以幫助我嗎？

這是一個圖片： http : //gyazo.com/5a16cde702601e20c811339c01b1911c

語言：荷蘭語

碼：

 private void button1_Click(object sender, EventArgs e)
    {
        try
        {
            string database = @"Data Source=(LocalDB)\v11.0;AttachDbFilename=E:\gip_stap_2\loonberekening.mdf;Integra‌​ted Security=True;Connect Timeout=30;InitialCatalog=loonberekening";
            SqlConnection myConn = new SqlConnection(database);
            SqlCommand Selectcommand = new SqlCommand("select * from loonberekening.tblInloggen where id = '" + this.txtGebruikersnaam.Text + "' and passwoord= '" + this.txtPaswoord.Text + "' ;", myConn);
            SqlDataReader myReader;
            myConn.Open();
            myReader = Selectcommand.ExecuteReader();
            int count = 0;
            while (myReader.Read())
            {
                count = count + 1;
            }
            if (count == 1)
            {
                MessageBox.Show("Gebruikersnaam en paswoord is correct");
                startmenu.ShowDialog();
            }
            else if (count > 1)
            {
                MessageBox.Show("Dit is een gedupliceerde paswoord en gebruikersnaam... Acces verboden");
            }
            else
            {
                MessageBox.Show("Username and paswoord zijn niet correct, Probeer opnieuw");
                myConn.Close();
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }

Answer 1

更改連接中的順序，在集成安全性之前，應該首先是“初始目錄”

SqlConnection con = new SqlConnection(@"DataSource=sadf;Initial Catalog=asdf;Integrated Security=TRUE");

Answer 2

如果您的數據庫文件附加在SSMS請嘗試此操作

string database = @"Data Source=.; Integrated Security; 
                  Initial Catalog=loonberekening; Connect Timeout=30;"

如果您希望LocalDB自動實例具有特定的數據文件，則

string database = @"Server=(localdb)\v11.0;Integrated Security=true; 
                  AttachDbFileName=E:\gip_stap_2\loonberekening.mdf;"

注意：在您的Select Statement使用此loonberekening.dbo.tblInloggen代替此loonberekening.tblInloggen

像這樣

SqlCommand Selectcommand = 
new SqlCommand("select * from loonberekening.dbo.tblInloggen where id = '" +
 this.txtGebruikersnaam.Text + "' and passwoord= '" + this.txtPaswoord.Text + "' ;", myConn);