將數據打印到sqlite數據庫時發生Finisar.SQLite.SQLiteException

Question

我正在製作一個包含用戶的遊戲，運行時出現Finisar.SQLite.SQLiteException。這是代碼：

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 
using Finisar.SQLite; 

namespace Racing_Manager 
{ 
public partial class SaveNameBox : Form 
{ 
    public string command; 

    public string savedName; 
    public string firstName; 
    public string savedTeamName; 
    public string surname; 

    public SQLiteConnection sql_con; 
    public SQLiteCommand sql_cmd; 
    public SQLiteDataReader DB; 

    public void setConnection() 
    { 
     sql_con = new SQLiteConnection("Data Source=database.sqlite;Version=3;New=False;Compress=True;"); 
    } 
    public static SaveNameBox create = new SaveNameBox(); 
    public SaveNameBox() 
    { 
     InitializeComponent(); 
    } 

    //Save Name 
    private void TextBoxSaveName_TextChanged(object sender, EventArgs e) 
    { 
     savedName = TextBoxSaveName.Text; 
    } 

    //Team Name 
    private void teamName_TextChanged(object sender, EventArgs e) 
    { 
     savedTeamName = teamName.Text; 
    } 

    //First Name 
    private void textBoxFirstName_TextChanged(object sender, EventArgs e) 
    { 
     firstName = textBoxFirstName.Text; 
    } 

    //Surname 
    private void textBoxSurname_TextChanged(object sender, EventArgs e) 
    { 
     surname = textBoxSurname.Text; 
    } 

    //Confirmation 
    private void confirm_Click(object sender, EventArgs e) 
    { 
     command = String.Format("INSERT INTO Users VALUES ({0},{1},{2},{3})", savedName, firstName, surname, savedTeamName); 
     ExecuteQuery(command); 
    } 


    public void ExecuteQuery(string command) 
    { 
     setConnection(); 
     sql_con.Open(); 
     sql_cmd.CommandText = command; 
    } 

} 
} 

唯一的例外是在這條線： sql_con.Open（）; 我該如何解決這個問題？非常感謝幫助。

Answer 1

確保您的連接字符串是正確的。這裏是一個很好的website：