string connectionString = "Data Source=../data/data.db;Version=3;"; using (SQLiteConnection connection = new SQLiteConnection(connectionString)) { connection.Open(); // 执行数据库操作 } } } ``` 5. 总结 相对路径是使用SQLite连接字符串时的一种方便和灵活的表示方式。正确地使用相对路径可以使应...
{//new SQLiteParameter("@IMG_ID", DbType.Int32,4),//new SQLiteParameter("@USER_ID", DbType.String),};//parameters[0].Value = model.IMG_ID;//parameters[1].Value = model.USER_ID;DataTable dt=SQLiteHelper.GetDataTable(sqlQuery, parameters);for(inti =0; i < dt.Rows.Count; i++...
publicstaticvoidAddData(stringinputText){stringdbpath = Path.Combine(ApplicationData.Current.LocalFolder.Path,"sqliteSample.db");using(SqliteConnection db =newSqliteConnection($"Filename={dbpath}")) { SQLitePCL.Batteries.Init(); db.Open(); SqliteCommand insertCommand =newSqliteCommand(); insertComma...
实体类操作Sqlite数据库 需要Neget安装sqlite-net-pcl包。 usingSystem;usingSystem.Collections.Generic;usingSystem.Threading.Tasks;usingSQLite;namespaceConsoleApp1{classProgram{staticvoidMain(string[]args){stringpath=@"F:\DownLoad\sqlite\text4.db";NoteDatabasenoteDatabase=newNoteDatabase(path);Notenote=ne...
dbConnectionString 路径: 我已经为相对路径连接字符串编写了代码,如下所示: 相对路径: string relativePath = @"Database\inventory_control.db"; string currentPath = System.Reflection.Assembly.GetExecutingAssembly().Location; //string path = currentPath.Substring(0, currentPath.Length - 21); ...
CurrentDirectory, "ClassManagement.db"); private readonly SQLiteConnection _connection; // SQLite连接对象 /// /// 构造函数 /// public SQLiteHelper() { // 创建SQLite连接对象并打开连接 _connection = new SQLiteConnection(_databasePath); _connection.CreateTable<T>(); // 如果表不存在,则创建...
Droid.Helpers { public class SQLiteAndroid : ISQLite { private static string path; private static SQLiteAsyncConnection connectionAsync; private static readonly object locker = new object(); private static readonly object pathLocker = new object(); private static string GetDatabasePath() { lock (...
importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.ResultSet;importjava.sql.Statement;publicclassSQLiteExample{publicstaticvoidmain(String[]args){try{// 导入SQLite驱动Class.forName("org.sqlite.JDBC");// 创建数据库连接Stringurl="jdbc:sqlite:/path/to/database.db";Connectionconnection...
首先,定义一个值转换器,将 DateTime 转换为 string(对应 SQLite 中的 TEXT 类型)。 代码示例 usingMicrosoft.EntityFrameworkCore.Storage.ValueConversion; namespaceConsoleApp1.TypeConverters; /// ///DateTime转换器 /// internalclassDateTimeToStringConverter:ValueConverter<DateTime,string> { /// ///日期格式...
public SQLiteConnection GetConnection() { var sqliteFilename = "Member.sqlite"; string path = Path.Combine(ApplicationData.Current.LocalFolder.Path, sqliteFilename); var conn = new SQLite.SQLiteConnection(path,true); return conn; }above is my Code in UWP System.TypeInitializationException HResult=...