DataGrid分页

【文件属性】：
文件名称：DataGrid分页
文件大小：2KB
文件格式：TXT
更新时间：2013-02-18 03:39:25
VB DataGrid 分页 VB DataGrid分页 请看： 数据库：test2000.mdb 表：numbers 字段：Id(自动编号)，anumber(数字) 因为DataGrid控件我们采用直接绑定记录集来显示数据.所以分页处理我们采用了间接的办法，定义另一个记录集objrs，将分页后的记录集付给objrs.然后绑定DataGrid ''效果还不错 , 我加了详细地注释，像pagesize, AbsolutePage的用法可参考msdn VB中新建工程,form中添加DataGrid控件,按钮cmdPrevious和cmdNext，文本框txtPage ''引用microsoft active data object 2.x object library Option Explicit Dim conn As ADODB.Connection Dim lCurrentPage As Long Private Sub cmdNext_Click() lCurrentPage = lCurrentPage + 1 Call Loadcontrol(lCurrentPage) End Sub Private Sub cmdPrevious_Click() If lCurrentPage > 1 Then lCurrentPage = lCurrentPage - 1 Call Loadcontrol(lCurrentPage) End If End Sub Private Sub Form_Load() Set conn = New ADODB.Connection conn.CursorLocation = adUseClient conn.Open "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\test2000.mdb;" lCurrentPage = 1 Call Loadcontrol(lCurrentPage) End Sub Private Sub Loadcontrol(lPage As Long) Dim adoPrimaryRS As ADODB.Recordset Dim lPageCount As Long Dim nPageSize As Integer Dim lCount As Long ''每页显示的纪录 nPageSize = 10 Set adoPrimaryRS = New ADODB.Recordset adoPrimaryRS.Open "select * from numbers", conn, adOpenStatic, adLockOptimistic adoPrimaryRS.PageSize = nPageSize ''页数 lPageCount = adoPrimaryRS.PageCount If lCurrentPage > lPageCount Then lCurrentPage = lPageCount End If adoPrimaryRS.AbsolutePage = lCurrentPage ''定义另一个记录集 Dim objrs As New ADODB.Recordset ''添加字段名称 For lCount = 0 To adoPrimaryRS.Fields.Count - 1 objrs.Fields.Append adoPrimaryRS.Fields(lCount).Name, adVarChar, adoPrimaryRS.Fields(lCount).DefinedSize Next ''打开记录集 objrs.Open ''将指定记录数循环添加到objrs中 For lCount = 1 To nPageSize objrs.AddNew objrs!id = adoPrimaryRS!id objrs!anumber = adoPrimaryRS!anumber adoPrimaryRS.MoveNext Next ''绑定 Set DataGrid1.DataSource = objrs ''在文本框显示页数 txtPage = lPage & "/" & adoPrimaryRS.PageCount End Sub Private Sub Form_Unload(Cancel As Integer) If Not conn Is Nothing Then conn.Close End If Set conn = Nothing End Sub ‘文本框中输入页数，回车跳转到指定位置 Private Sub txtPage_KeyDown(KeyCode As Integer, Shift As Integer) lCurrentPage = Val(txtPage.Text) Call Loadcontrol(lCurrentPage) End Sub