【SQLite】常见错误 错误1:Invalid ConnectionString format for part "C:/sqlite/student.db", no equal sign found 解决办法: 错误字符串:DataSource=C:/sqlite/student.db;Version=3; 错误字符串:C:/sqlite/student.db;Version=3; 正确的链接字符串:Data Source=C:/sqlite/student.db;Version=3;...
string dbName = "test.sqlite"; SQLiteConnection Connection=newSQLiteConnection(string.Format(connStr, dbName)); Connection.Open(); 3.数据库切换 虽然SQLiteConnection也提供了ChangeDatabase方法,但是不管用 o(╥﹏╥)o 得先手动释放原来的连接资源,再建立新的连接 Connection?.Dispose(); Connection=newSQLiteC...
string defaultConnection = setting.DefaultDatabase; connectionString = ConfigurationManager.ConnectionStrings[defaultConnection].ConnectionString; //尝试加密或者解密 if(!connectionString.EndsWith(";")) { connectionString += ";"; } connectionString += string.Format("Jet OLEDB:Database Password=mypassword;...
SQLiteConnection conn = new SQLiteConnection(); SQLiteConnectionStringBuilder connsb = new SQLiteConnectionStringBuilder(); connsb.DataSource = dbName; connsb.Password = ""; conn.ConnectionString = connsb.ToString(); conn.Open(); 接下来理所当然地要插入张表试试。 SQLite有个跟SQLCommand类似的SQLite...
connectionString = string.Format(@"Data Source={0}\OrderWater.db;Version=3;", Application.StartupPath); 如果是使用微软的企业库EnterpriseLibary来进行数据库访问的话,那么需要在配置文件中配置数据库访问,如下所示。 注意红色框部分就可以顺利配置好Sqlite数据库的企业库配置信息了。
首先为项目添加引用 最上面添加: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 privatevoidbutton1_Click(object sender,EventArgs e){using(SQLiteConnection con=newSQLiteConnection(DATA_SOURCE)){con.Open();using(SQLiteCommand cmd=newSQLiteCommand()){cmd.Connection=con;cmd.CommandText=string.Format(...
privatestaticstringconnectionString=string.Format(@"Data Source={0}","config.db");/// /// 适合增删改操作,返回影响条数/// /// SQL/// 参数/// <returns></returns>publicstaticintExecuteNonQuery(stringsql,paramsSqliteParameter[]parameters){using(SqliteConnectionconn=newSqliteConnection(connectionString...
最上面添加: private void button1_Click(object sender, EventArgs e) { using (SQLiteConnection con = new SQLiteConnection(DATA_SOURCE)) { con.Open(); using (SQLiteCommand cmd = new SQLiteCommand()) { cmd.Connection = con; cmd.CommandText = string.Format("select * from test1"); ...
然后，您可以使用LocalFolder.Path属性将连接字符串初始化到正确的位置。原始文件将位于Package.Installed...
程式碼會先呼叫 Init 以確認資料庫已初始化,然後使用 SQLiteConnection 物件的 Insert 方法。 將 result 變數設定為 Insert 方法傳回的值,如下列程式碼所示: C# 複製 public void AddNewPerson(string name) { int result = 0; try { // enter this line Init(); // basic validation to ensure a...