winform中SQLite的分页

前端之家收集整理的这篇文章主要介绍了winform中SQLite的分页前端之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。

winform中用到的分页控件这里用:http://cyq1162.blog.51cto.com/2127378/896084

也可以在这下载: 点击下载分页控件

原文中的用法

@H_502_13@ private void StartForm_Load(object sender,EventArgs e) { //创建文件数据库表。 MDataTable.CreateSchema("Users.txt",false,new string[] { "UserName","Password","Enabled" },sqlDbType.NVarChar,sqlDbType.Bit); for (int i = 0; i < 200; i++)//插入200条数据。 { using (MAction action = new MAction("Users.txt","Txt Path={0}")) { action.Set("UserName","UserName_" + i); action.Set("Password","Password_" + i); action.Set("Enabled",i%2==0); action.Insert(InsertOp.None); } } pagerControl1.OnPageChanged += new EventHandler(pagerControl1_OnPageChanged); LoadData(); } void pagerControl1_OnPageChanged(object sender,EventArgs e) { LoadData(); } void LoadData() { int count; using (MAction action = new MAction("Users.txt","Txt Path={0}")) { action.Select(pagerControl1.PageIndex,pagerControl1.PageSize,string.Empty,out count).Bind(gvUsers); pagerControl1.DrawControl(count); } }

sqlite的分页sql语句为

select * from 表 where 条件 order by 列 limit 10,20;

表示跳过10行,取20行的返回结果。

把控件添加页面后,参考上面代码改写为: @H_502_13@ public Form2() { InitializeComponent(); pagerControl1.OnPageChanged += new EventHandler(pagerControl1_OnPageChanged); LoadData(); } void LoadData() { pagerControl1.PageSize = 50; string sql = string.Format("select * from tb limit {0},{1}",(pagerControl1.PageIndex-1) * pagerControl1.PageSize,pagerControl1.PageSize); DataTable dt = sqliteHelper.ExecDataSet(sql).Tables[0]; dataGridView1.DataSource = dt; int count = sqliteHelper.ExecuteScalar("select count(*) from tb"); pagerControl1.DrawControl(count); } private void pagerControl1_OnPageChanged(object sender,EventArgs e) { LoadData(); }

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