Sqlite 添加、查询

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using CommonClassLibary;

using System.Data.sqlite;

namespace TEST

{

public partial class Frmsqlite : Form

{

string databaseName = string.Empty;

string con = string.Empty;

public Frmsqlite()

{

InitializeComponent();

databaseName = AppDomain.CurrentDomain.BaseDirectory + "\\sam_db.sam";

con = string.Format("Data Source={0};password=sam",databaseName);

}

/// <summary>

/// 添加

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

private void button1_Click(object sender,EventArgs e)

{

string sql = @"insert into DataBaseInfo ([DBAddress],[dbname],[DBUserName],[DBUserPwd])

values (@dbAddress,@dbname,@dbUser,@dbPwd)";

sqliteParameter[] para = new sqliteParameter[4];

for (int i = 0; i < para.Length; i++)

{

para[i] = new sqliteParameter();

}

para[0].ParameterName = "@dbAddress";

para[0].DbType = DbType.String;

para[0].Direction = ParameterDirection.Input;

para[0].Value = txt_dbAdress.Text;

para[1].ParameterName = "@dbname";

para[1].DbType = DbType.String;

para[1].Direction = ParameterDirection.Input;

para[1].Value = txt_dbname.Text;

para[2].ParameterName = "@dbUser";

para[2].DbType = DbType.String;

para[2].Direction = ParameterDirection.Input;

para[2].Value = txt_dbUser.Text;

para[3].ParameterName = "@dbPwd";

para[3].DbType = DbType.String;

para[3].Direction = ParameterDirection.Input;

para[3].Value = txt_dbPwd.Text;

CommonClassLibary.sqlHelper.sqliteHelper.ExecuteNonQuery(con,sql,CommandType.Text,para);

}

//查询

private void button2_Click(object sender,EventArgs e)

{

string strsql = "select * from DataBaseInfo ";

DataTable DT= CommonClassLibary.sqlHelper.sqliteHelper.ExecuteDataSet(con,strsql,CommandType.Text).Tables[0];

this.dataGridView1.DataSource = DT;

}

}

}

原文地址：https://www.jb51.cc/sqlite/199436.html