一、程序功能:
为Repeater实现分页
二、窗体设计:
1、新建ASP.NET Web应用程序,命名为Repeater2,保存路径为http://192.168.0.1/Repeater2(注:我机子上的网站的IP是192.168.0.1的主目录是D:\web文件夹)然后点击确定。
2、向窗体添加一个3行一列的表,向表的第一行中添加一个Repeater控件,向表的第二行中添加两个Label控件向表的第三行中添加四个Button按钮。
3、切换到HTML代码窗口,在<asp:Repeater id="Repeater1" runat="server">和</asp:Repeater>之间添加以下代码:
<ItemTemplate>
<table id="Table2" style="FONT-SIZE: x-small" width="498">
<tr>
<td><%#DataBinder.Eval(Container,"DataItem.employeeid")%></td>
<td><%#DataBinder.Eval(Container,"DataItem.lastname")%></td>
</tr>
</table>
</ItemTemplate>
三、代码设计:
Imports System.Data.SqlClient
Public Class WebForm1
Inherits System.Web.UI.Page
Dim scon As New SqlConnection("server=localhost;database=northwind;uid=sa;pwd=123")
Dim sDA As SqlDataAdapter
Dim ds As DataSet
Dim currentPage As Integer '记录着目前在哪一页上
Dim maxPage As Integer '总共有多少页
Const rowCount As Integer = 3 '一页有多少行
Dim rowSum As Integer '总共有多少行
'窗体代码省略
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Not Page.IsPostBack Then
sDA = New SqlDataAdapter("select employeeid, lastname from employees order by employeeid", scon)
ds = New DataSet
Try
sDA.Fill(ds, "employees")
'获取总共有多少行
rowSum = ds.Tables(0).Rows.Count
Catch ex As Exception
rowSum = 0
End Try
'如果没有数据,退出过程
If rowSum = 0 Then Exit Sub
'计算出浏览数据的总页数
If rowSum Mod rowCount > 0 Then
'有余数要加1
maxPage = rowSum \ rowCount + 1
Else
'正好除尽
maxPage = rowSum \ rowCount
End If
currentPage = 1
'调用绑定数据过程
readpage(currentPage)
BindData()
Label2.Text = maxPage
'首页和上一页按钮不可见
Button1.Visible = False
Button2.Visible = False
End If
End Sub
'创建一个绑定数据的过程
Sub BindData()
Repeater1.DataSource = ds
Repeater1.DataBind()
Label1.Text = currentPage
End Sub
'创建一个填充数据集的过程
Sub readpage(ByVal n As Integer)
sDA = New SqlDataAdapter("select employeeid, lastname from employees order by employeeid", scon)
ds = New DataSet
ds.Clear()
sDA.Fill(ds, (n - 1) * rowCount, rowCount, "employees")
End Sub
'首页按钮
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
currentPage = 1
'调用填充数据集过程
readpage(currentPage)
'绑定数据
BindData()
'设置首页、第一页按钮不可见,显示下一页尾页按钮
Button1.Visible = False
Button2.Visible = False
Button3.Visible = True
Button4.Visible = True
End Sub
'上一页按钮
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
'如果现在页是第二页,设置首页和上一页按钮不可见
If Label1.Text > 2 Then
Button3.Visible = True
Button4.Visible = True
Else
Button1.Visible = False
Button2.Visible = False
Button3.Visible = True
Button4.Visible = True
End If
currentPage = Label1.Text - 1
readpage(currentPage)
BindData()
End Sub
'下一页按钮
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
'如果现在页倒数第二页,设置最后页和下一页按钮不可见
If Label1.Text < Label2.Text - 1 Then
Button1.Visible = True
Button2.Visible = True
Else
Button1.Visible = True
Button2.Visible = True
Button3.Visible = False
Button4.Visible = False
End If
currentPage = Label1.Text + 1
readpage(currentPage)
BindData()
End Sub
'尾页按钮
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
'设置当前页为最大页数
currentPage = Label2.Text
readpage(currentPage)
BindData()
Button1.Visible = True
Button2.Visible = True
Button3.Visible = False
Button4.Visible = False
End Sub
End Class
窗体界面如下所示:
为Repeater实现分页
二、窗体设计:
1、新建ASP.NET Web应用程序,命名为Repeater2,保存路径为http://192.168.0.1/Repeater2(注:我机子上的网站的IP是192.168.0.1的主目录是D:\web文件夹)然后点击确定。
2、向窗体添加一个3行一列的表,向表的第一行中添加一个Repeater控件,向表的第二行中添加两个Label控件向表的第三行中添加四个Button按钮。
3、切换到HTML代码窗口,在<asp:Repeater id="Repeater1" runat="server">和</asp:Repeater>之间添加以下代码:
<ItemTemplate>
<table id="Table2" style="FONT-SIZE: x-small" width="498">
<tr>
<td><%#DataBinder.Eval(Container,"DataItem.employeeid")%></td>
<td><%#DataBinder.Eval(Container,"DataItem.lastname")%></td>
</tr>
</table>
</ItemTemplate>
三、代码设计:
Imports System.Data.SqlClient
Public Class WebForm1
Inherits System.Web.UI.Page
Dim scon As New SqlConnection("server=localhost;database=northwind;uid=sa;pwd=123")
Dim sDA As SqlDataAdapter
Dim ds As DataSet
Dim currentPage As Integer '记录着目前在哪一页上
Dim maxPage As Integer '总共有多少页
Const rowCount As Integer = 3 '一页有多少行
Dim rowSum As Integer '总共有多少行
'窗体代码省略
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Not Page.IsPostBack Then
sDA = New SqlDataAdapter("select employeeid, lastname from employees order by employeeid", scon)
ds = New DataSet
Try
sDA.Fill(ds, "employees")
'获取总共有多少行
rowSum = ds.Tables(0).Rows.Count
Catch ex As Exception
rowSum = 0
End Try
'如果没有数据,退出过程
If rowSum = 0 Then Exit Sub
'计算出浏览数据的总页数
If rowSum Mod rowCount > 0 Then
'有余数要加1
maxPage = rowSum \ rowCount + 1
Else
'正好除尽
maxPage = rowSum \ rowCount
End If
currentPage = 1
'调用绑定数据过程
readpage(currentPage)
BindData()
Label2.Text = maxPage
'首页和上一页按钮不可见
Button1.Visible = False
Button2.Visible = False
End If
End Sub
'创建一个绑定数据的过程
Sub BindData()
Repeater1.DataSource = ds
Repeater1.DataBind()
Label1.Text = currentPage
End Sub
'创建一个填充数据集的过程
Sub readpage(ByVal n As Integer)
sDA = New SqlDataAdapter("select employeeid, lastname from employees order by employeeid", scon)
ds = New DataSet
ds.Clear()
sDA.Fill(ds, (n - 1) * rowCount, rowCount, "employees")
End Sub
'首页按钮
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
currentPage = 1
'调用填充数据集过程
readpage(currentPage)
'绑定数据
BindData()
'设置首页、第一页按钮不可见,显示下一页尾页按钮
Button1.Visible = False
Button2.Visible = False
Button3.Visible = True
Button4.Visible = True
End Sub
'上一页按钮
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
'如果现在页是第二页,设置首页和上一页按钮不可见
If Label1.Text > 2 Then
Button3.Visible = True
Button4.Visible = True
Else
Button1.Visible = False
Button2.Visible = False
Button3.Visible = True
Button4.Visible = True
End If
currentPage = Label1.Text - 1
readpage(currentPage)
BindData()
End Sub
'下一页按钮
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
'如果现在页倒数第二页,设置最后页和下一页按钮不可见
If Label1.Text < Label2.Text - 1 Then
Button1.Visible = True
Button2.Visible = True
Else
Button1.Visible = True
Button2.Visible = True
Button3.Visible = False
Button4.Visible = False
End If
currentPage = Label1.Text + 1
readpage(currentPage)
BindData()
End Sub
'尾页按钮
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
'设置当前页为最大页数
currentPage = Label2.Text
readpage(currentPage)
BindData()
Button1.Visible = True
Button2.Visible = True
Button3.Visible = False
Button4.Visible = False
End Sub
End Class
窗体界面如下所示:
广告合作:本站广告合作请联系QQ:858582 申请时备注:广告合作(否则不回)
免责声明:本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除!
免责声明:本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除!
暂无评论...
更新日志
2024年11月29日
2024年11月29日
- 凤飞飞《我们的主题曲》飞跃制作[正版原抓WAV+CUE]
- 刘嘉亮《亮情歌2》[WAV+CUE][1G]
- 红馆40·谭咏麟《歌者恋歌浓情30年演唱会》3CD[低速原抓WAV+CUE][1.8G]
- 刘纬武《睡眠宝宝竖琴童谣 吉卜力工作室 白噪音安抚》[320K/MP3][193.25MB]
- 【轻音乐】曼托凡尼乐团《精选辑》2CD.1998[FLAC+CUE整轨]
- 邝美云《心中有爱》1989年香港DMIJP版1MTO东芝首版[WAV+CUE]
- 群星《情叹-发烧女声DSD》天籁女声发烧碟[WAV+CUE]
- 刘纬武《睡眠宝宝竖琴童谣 吉卜力工作室 白噪音安抚》[FLAC/分轨][748.03MB]
- 理想混蛋《Origin Sessions》[320K/MP3][37.47MB]
- 公馆青少年《我其实一点都不酷》[320K/MP3][78.78MB]
- 群星《情叹-发烧男声DSD》最值得珍藏的完美男声[WAV+CUE]
- 群星《国韵飘香·贵妃醉酒HQCD黑胶王》2CD[WAV]
- 卫兰《DAUGHTER》【低速原抓WAV+CUE】
- 公馆青少年《我其实一点都不酷》[FLAC/分轨][398.22MB]
- ZWEI《迟暮的花 (Explicit)》[320K/MP3][57.16MB]