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asp.net 学习日记数据分页
作者:武汉SEO闵涛  文章来源:敏韬网  点击数2255  更新时间:2009/4/23 10:41:06  文章录入:mintao  责任编辑:mintao
trWhere = Value
            End Set
        End Property

        ''''set or get sql orderby
        Public Property fldOrderby() As String
            Get
                Return strfldOrderby
            End Get
            Set(ByVal Value As String)
                strfldOrderby = Value
            End Set
        End Property

        Public Function GetPageCount() As Integer
            Call ConnectionDatabase()

            Dim RountCommand As SqlDataAdapter
            RountCommand = New SqlDataAdapter("CountRow", myConn)
            RountCommand.SelectCommand.CommandType = CommandType.StoredProcedure

            RountCommand.SelectCommand.Parameters.Add(New SqlParameter("@strTableName", SqlDbType.NVarChar, 50))
            RountCommand.SelectCommand.Parameters("@strTableName").Value = strTableName

            RountCommand.SelectCommand.Parameters.Add(New SqlParameter("@fldNameCount", SqlDbType.NVarChar, 50))
            RountCommand.SelectCommand.Parameters("@fldNameCount").Value = strfldNameCount

            Dim intCount As Integer = RountCommand.SelectCommand.ExecuteScalar()
            myConn.Close()
            If (intCount Mod intPagesize) > 0 Then
                Return (intCount \ intPagesize) + 1
            Else
                Return (intCount \ intPagesize)
            End If
        End Function

        Public Function GotoPage(Optional ByVal intPage As Integer = 1) As DataView
            Call ConnectionDatabase()

            Dim myCommand As SqlDataAdapter
            myCommand = New SqlDataAdapter("GetPage", myConn)
            myCommand.SelectCommand.CommandType = CommandType.StoredProcedure

            myCommand.SelectCommand.Parameters.Add(New SqlParameter("@strTableName", SqlDbType.NVarChar, 50))
            myCommand.SelectCommand.Parameters("@strTableName").Value = strTableName

            myCommand.SelectCommand.Parameters.Add(New SqlParameter("@fldName", SqlDbType.NVarChar, 200))
            myCommand.SelectCommand.Parameters("@fldName").Value = strfldName

            myCommand.SelectCommand.Parameters.Add(New SqlParameter("@strWhere", SqlDbType.NVarChar, 200))
            myCommand.SelectCommand.Parameters("@strWhere").Value = strWhere

            myCommand.SelectCommand.Parameters.Add(New SqlParameter("@fldOrderby", SqlDbType.NVarChar, 200))
            myCommand.SelectCommand.Parameters("@fldOrderby").Value = strfldOrderby

            myCommand.SelectCommand.Parameters.Add(New SqlParameter("@page", SqlDbType.Int))
            myCommand.SelectCommand.Parameters("@page").Value = intPage

            myCommand.SelectCommand.Parameters.Add(New SqlParameter("@pageSize", SqlDbType.Int))
            myCommand.SelectCommand.Parameters("@pageSize").Value = intPagesize

            Dim ds As New DataSet
            myCommand.Fill(ds, "@Employees")

            Return ds.Tables("@Employees1").DefaultView
            myConn.Close()
        End Function
    End Class
End Namespace

(2)下面是WebForm1.aspx 的Codebehind
Imports bbs.DataLayer
Imports System
Imports System.Web
Imports System.Data
Imports System.Data.SqlClient


Public Class WebForm1
    Inherits System.Web.UI.Page
    Private clsGetData As New GetData

#Region " Web 窗体设计器生成的代码 "

    ''''该调用是 Web 窗体设计器所必需的。
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

    End Sub
    Protected WithEvents LinkButton1 As System.Web.UI.WebControls.LinkButton
    Protected WithEvents DataGrid1 As System.Web.UI.WebControls.DataGrid
    Protected WithEvents TextBox1 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Button1 As System.Web.UI.WebControls.Button
    Protected WithEvents lnkNext As System.Web.UI.WebControls.LinkButton
    Protected WithEvents lnkPrve As System.Web.UI.WebControls.LinkButton
    Protected WithEvents Label1 As System.Web.UI.WebControls.Label
    Protected WithEvents Label2 As System.Web.UI.WebControls.Label
    Protected WithEvents Label3 As System.Web.UI.WebControls.Label

    ''''注意: 以下占位符声明是 Web 窗体设计器所必需的。
    ''''不要删除或移动它。
    Private designerPlaceholderDeclaration As System.Object

    Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
        ''''CODEGEN: 此方法调用是 Web 窗体设计器所必需的
        ''''不要使用代码编辑器修改它。
        InitializeComponent()
    End Sub

#End Region

    Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        If Not IsPostBack Then
            GridBind()
        End If
    End Sub

    Private Sub GridBind()
        clsGetData.TableName = "Products"               ''''表名
        clsGetData.fldNameCount = "ProductID"           ''''获取记录总数时所用到的字段
        clsGetData.fldName = "ProductID,ProductName"    ''''要返回的字段
        clsGetData.Pagesize = 10                        ''''每页的大小
        If clsGetData.fldOrderby = "" Then              ''''排序的字段
            clsGetData.fldOrderby = "ProductID"
        End If

        If PageCount = 0 Then
            PageCount = clsGetData.GetPageCount()
        End If

        If CurPage = PageCount Then
            lnkNext.Enabled = False
        Else
         &n

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