[英]How to attach a database to a setup
這是我的第一個帶有數據庫的應用程序,它可以在我的PC上完美安裝並運行。 但是,當安裝在另一台計算機上時,它將引發錯誤:
System.Data.SqlClient.SqlException (0x80131904): A network-related or
instance-specific error occurred while establishing a connection to SQL
Server. The server was not found or was not accessible. Verify that the
instance name is correct and that SQL Server is configured to allow remote
connections. (provider: SQL Network Interfaces, error: 50 - Local Database
Runtime error occurred. The specified LocalDB instance does not exist.
我需要的是,安裝文件必須自己在本地包含一個數據庫,以便我可以存儲一些數據並檢索它。
示例應用程序在這里:
using System;
using System.Data;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace form1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
SqlDataAdapter da;
DataSet ds;
SqlConnection con;
private void button1_Click(object sender, EventArgs e)
{
con = new SqlConnection("Data Source=(LocalDB)\\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\\sql.mdf;Integrated Security=True");
da = new SqlDataAdapter("insert into STUDENTDATA(STUDENT,CLASS,SEX)values('" + textBox1.Text + "','" + textBox2.Text + "','" + textBox3.Text + "')", con);
ds = new DataSet();
da.Fill(ds);
MessageBox.Show("Registration has been successful");
}
private void button2_Click(object sender, EventArgs e)
{
Form2 f2 = new Form2();
f2.Show();
}
}
}
注意::另一台計算機中裝有Visual Studio。
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