我的文件App_Data夹中有数据库文件，我的网络配置看起来像这样
<?xml version="1.0"?>
<!--
For more information on how to configure your ASP.NET application, please visit
http://go.microsoft.com/fwlink/?LinkId=169433
-->
<configuration>
<connectionStrings>
<add name="TicketsConnectionString"
connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|Tickets.mdf;Integrated Security=SSPI;User Instance=True;"
providerName="System.Data.SqlClient" />
</connectionStrings>
<system.web>
<compilation debug="true" targetFramework="4.5"/>
<httpRuntime targetFramework="4.5"/>
</system.web>
</configuration>
我有 Default.aspx 页面
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="LastName" runat="server"></asp:TextBox>
<asp:TextBox ID="FirstName" runat="server"></asp:TextBox>
<asp:TextBox ID="Phone1" runat="server"></asp:TextBox>
<asp:TextBox ID="Phone2" runat="server"></asp:TextBox>
<br />
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" />
<br />
<br />
<asp:Label ID="DisplayMessage" runat="server" style="color: #FF0000" Visible="false" />
<br />
<br />
<br />
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:TicketsConnectionString %>" SelectCommand="SELECT * FROM [Employee]" DeleteCommand="DELETE FROM [Employee] WHERE [EmpID] = @EmpID" InsertCommand="INSERT INTO [Employee] ([LastName], [FirstName], [Phone1], [Phone2]) VALUES (@LastName, @FirstName, @Phone1, @Phone2)" UpdateCommand="UPDATE [Employee] SET [LastName] = @LastName, [FirstName] = @FirstName, [Phone1] = @Phone1, [Phone2] = @Phone2 WHERE [EmpID] = @EmpID">
<DeleteParameters>
<asp:Parameter Name="EmpID" Type="Int32" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="LastName" Type="String" />
<asp:Parameter Name="FirstName" Type="String" />
<asp:Parameter Name="Phone1" Type="String" />
<asp:Parameter Name="Phone2" Type="String" />
</InsertParameters>
<UpdateParameters>
<asp:Parameter Name="LastName" Type="String" />
<asp:Parameter Name="FirstName" Type="String" />
<asp:Parameter Name="Phone1" Type="String" />
<asp:Parameter Name="Phone2" Type="String" />
<asp:Parameter Name="EmpID" Type="Int32" />
</UpdateParameters>
</asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False" BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px" CellPadding="3" DataKeyNames="EmpID" DataSourceID="SqlDataSource1" ForeColor="Black" GridLines="Vertical">
<AlternatingRowStyle BackColor="#CCCCCC" />
<Columns>
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />
<asp:BoundField DataField="EmpID" HeaderText="EmpID" InsertVisible="False" ReadOnly="True" SortExpression="EmpID" />
<asp:BoundField DataField="LastName" HeaderText="LastName" SortExpression="LastName" />
<asp:BoundField DataField="FirstName" HeaderText="FirstName" SortExpression="FirstName" />
<asp:BoundField DataField="Phone1" HeaderText="Phone1" SortExpression="Phone1" />
<asp:BoundField DataField="Phone2" HeaderText="Phone2" SortExpression="Phone2" />
</Columns>
<FooterStyle BackColor="#CCCCCC" />
<HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#F1F1F1" />
<SortedAscendingHeaderStyle BackColor="#808080" />
<SortedDescendingCellStyle BackColor="#CAC9C9" />
<SortedDescendingHeaderStyle BackColor="#383838" />
</asp:GridView>
</div>
</form>
</body>
</html>
和一个 Default.aspx.cs 页面
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
GridView1.DataBind();
}
string connectionString = ConfigurationManager.ConnectionStrings["TicketsConnectionString"].ConnectionString;
protected void Button1_Click(object sender, EventArgs e)
{
DataSet ds = new DataSet();
SqlConnection con = new SqlConnection(connectionString);
SqlCommand cmd = new SqlCommand("InsertIntoEmployee", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("@LastName", SqlDbType.NVarChar).Value = LastName.Text;
cmd.Parameters.Add("@FirstName", SqlDbType.NVarChar);
cmd.Parameters.Add("@Phone1", SqlDbType.NVarChar);//SqlDbType.NVarChar allowed to insert Russian letters
cmd.Parameters.Add("@Phone2", SqlDbType.NVarChar);
cmd.Parameters["@LastName"].Value = LastName.Text;
cmd.Parameters["@FirstName"].Value = FirstName.Text;
cmd.Parameters["@Phone1"].Value = Phone1.Text;
cmd.Parameters["@Phone2"].Value = Phone2.Text;
con.Open();
cmd.ExecuteNonQuery();
con.Close();
DisplayMessage.Text = "Запись добавлена.";
DisplayMessage.Visible = true;
}
}
它抛出这个错误
The database 'G:\SITES\WEBSITE6\APP_DATA\TICKETS.MDF' cannot be opened because it is version 706. This server supports version 655 and earlier. A downgrade path is not supported.
Could not open new database 'G:\SITES\WEBSITE6\APP_DATA\TICKETS.MDF'. CREATE DATABASE is aborted.
An attempt to attach an auto-named database for file G:\sites\WebSite6\App_Data\Tickets.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: The database 'G:\SITES\WEBSITE6\APP_DATA\TICKETS.MDF' cannot be opened because it is version 706. This server supports version 655 and earlier. A downgrade path is not supported.
Could not open new database 'G:\SITES\WEBSITE6\APP_DATA\TICKETS.MDF'. CREATE DATABASE is aborted.
An attempt to attach an auto-named database for file G:\sites\WebSite6\App_Data\Tickets.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
Source Error:
Line 14: protected void Page_Load(object sender, EventArgs e)
Line 15: {
Line 16: GridView1.DataBind();
Line 17: }
Line 18:
我认为连接字符串存在一些问题，但对我来说一切看起来都很好，我的问题是如何解决这个问题？