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編譯器給我這個錯誤：附加的autonamed數據庫文件失敗
An attempt to attach an auto-named database for file failed. A database with the same name exists or specified file cannot be open, or it is located on UNC share.
我一直在閱讀上的其他計算器職位，他們提到這可能是一個問題的ConnectionString，但我m在linq中編碼，而不是ado.net代碼。我不使用傳統的連接字符串。事實上，我必須使用名稱空間來調用tableAdapter，以便我訪問我需要的數據源。
正在使用的代碼如下：
using CustomerInvoices.MMABooksDataSetTableAdapters;
namespace CustomerInvoices
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
MMABooksDataSet mmaBooksDataSet = new MMABooksDataSet();
InvoicesTableAdapter invoicesTableAdapter = new InvoicesTableAdapter();
CustomersTableAdapter customersTableAdapter =
new CustomersTableAdapter();
private void Form1_Load(object sender, EventArgs e)
{
invoicesTableAdapter.Fill(mmaBooksDataSet.Invoices);
customersTableAdapter.Fill(mmaBooksDataSet.Customers);
var invoices = from invoice in mmaBooksDataSet.Invoices
join customer in mmaBooksDataSet.Customers
on invoice.CustomerID equals customer.CustomerID
orderby customer.Name, invoice.InvoiceTotal descending
select new
{
customer.Name,
invoice.InvoiceID,
invoice.InvoiceDate,
invoice.InvoiceTotal
};
string customerName = "";
int i = 0;
foreach (var invoice in invoices)
{
if (invoice.Name != customerName)
{
lvInvoices.Items.Add(invoice.Name);
customerName = invoice.Name;
}
else
{
lvInvoices.Items.Add("");
}
lvInvoices.Items[i].SubItems.Add(invoice.InvoiceTotal.ToString());
lvInvoices.Items[i].SubItems.Add(Convert.ToDateTime
(invoice.InvoiceDate).ToShortDateString());
lvInvoices.Items[i].SubItems.Add
(invoice.InvoiceTotal.ToString("c"));
i += 1;
}
}
}
}