asp.net 自定义分页控件

这个分页的主要是用了四个linkbutton按纽的事件，然后利用后台传递的条件调用分页处理的方法，在这个控件中可以点击表头排序，并且可以突出显示关键字等。

显示的页面:

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="DataShow.ascx.cs" Inherits="DataShow" EnableViewState="false" %>

<table border="0" cellpadding="0" cellspacing="0" style="width: 100%; height: 466px;">

<tr>

<td style="vertical-align: top; width: 100%; height: 233px; text-align: center;">

<asp:GridView ID="GridViewFileList" runat="server" AllowPaging="True" AllowSorting="True"

AutoGenerateColumns="False" CellPadding="4" GridLines="None" PageSize="20" Width="98%" OnRowDataBound="GridViewFileList_RowDataBound" OnSorting="GridViewFileList_Sorting">

<Columns>

<asp:BoundField DataField="FileID" Visible="False">

<ItemStyle Height="26px" />

<HeaderStyle Height="26px" />

</asp:BoundField>

<asp:TemplateField HeaderText="文件名" SortExpression="title">

<HeaderStyle CssClass="gridheadshowdata" />

<ItemTemplate>

<asp:HyperLink ID="FileName" runat="server" Target="_blank" NavigateUrl='<%# "FileDetail.aspx?FileID="+Eval("FileID")%>' CssClass="griditemshowdata"

Text='<%# Eval("title") %>' ToolTip='<%# Eval("FileDesc") %>'></asp:HyperLink>

</ItemTemplate>

<ItemStyle HorizontalAlign="Left" />

</asp:TemplateField>

<asp:BoundField DataField="FileTypeName" HeaderText="类别" SortExpression="FileTypeID" HtmlEncode="False">

<ItemStyle Height="26px" CssClass="griditemshowdata" HorizontalAlign="Center" />

<HeaderStyle CssClass="gridheadshowdata" Height="26px" />

</asp:BoundField>

<asp:BoundField DataField="GradeName" HeaderText="年级" SortExpression="GradeID" HtmlEncode="False">

<ItemStyle CssClass="griditemshowdata" HorizontalAlign="Center" />

<HeaderStyle CssClass="gridheadshowdata" />

</asp:BoundField>

<asp:BoundField DataField="FileSize" HeaderText="文件大小" SortExpression="FileSize2" HtmlEncode="False">

<ItemStyle CssClass="griditemshowdata" HorizontalAlign="Center" />

<HeaderStyle CssClass="gridheadshowdata" />

</asp:BoundField>

<asp:BoundField DataField="AddDate" DataFormatString="{0:d}" HeaderText="发布时间<font color='#FF0000'>↓</font>" HtmlEncode="False"

SortExpression="AddDate">

<ItemStyle CssClass="griditemshowdata" Height="26px" HorizontalAlign="Center" />

<HeaderStyle CssClass="gridheadshowdata" Height="26px" />

</asp:BoundField>

<asp:BoundField DataField="hit" HeaderText="下载次数" SortExpression="hit" HtmlEncode="False">

<ItemStyle CssClass="griditemshowdata" Height="26px" HorizontalAlign="Center" />

<HeaderStyle CssClass="gridheadshowdata" Height="26px" />

</asp:BoundField>

<asp:TemplateField>

<HeaderTemplate>

下载

</HeaderTemplate>

<ItemStyle CssClass="griditemshowdata" Height="26px" HorizontalAlign="Center" />

<HeaderStyle CssClass="gridheadshowdata" Height="26px" />

<ItemTemplate>

<a href="GetDownloadFile.aspx?FileID=<%#Eval("FileID") %>&AddDate=<%#Eval("AddDate") %>&UpFile=<%#Eval("UpFile") %>">

<%-- <a href='<%#Eval("DownloadPath") %>'>--%>

<asp:Image ID="Image2" runat="server" ImageUrl="~/images/icon_down.gif" /></a>

</ItemTemplate>

</asp:TemplateField>

</Columns>

<RowStyle BackColor="#EFEFEF" />

<EmptyDataTemplate>

<table border='0' cellpadding='0' cellspacing='0' style='border-right: coral 1px dotted;border-top: coral 1px dotted; border-left: coral 1px dotted; border-bottom: coral 1px dotted;background-color: #ffffff;width:100%;height:55px;'><tr><td align='center'><font color='coral'><b>对不起，没有搜索到相关的记录，我们将尽快上传相关数据<b></font></td></tr></table>

</EmptyDataTemplate>

<HeaderStyle BackColor="#D5E4F4" Font-Bold="True" />

<AlternatingRowStyle BackColor="White" />

</asp:GridView>

<asp:Panel ID="PanelPageTable" runat="server" Height="28px" Visible="False" Width="98%">

<table border="0" cellpadding="0" cellspacing="0" style="width: 100%; height: 21px">

<tr>

<td style="width: 100px; height: 13px">

</td>

<td style="width: 98px; height: 13px">

<div style="width: 212px; height: 7px; font-size:14px;">

总共<%=RecordCount%>条 第

<%=PageIndex%>/<%=PageCount %>

页

</div>

</td>

<td style="width: 97px; height: 13px">

<div style="width: 308px; height: 8px; text-align: right; font-size:14px;">

<asp:LinkButton ID="FirstPage" runat="server" CommandArgument="First" OnClick="FirstPage_Click" >第一页</asp:LinkButton>

<asp:LinkButton ID="PreviousPage" runat="server" CommandArgument="Prev" OnClick="PreviousPage_Click" >上一页</asp:LinkButton>

<asp:LinkButton ID="NextPage" runat="server" CommandArgument="Next" OnClick="NextPage_Click" >下一页</asp:LinkButton>

<asp:LinkButton ID="LastPage" runat="server" CommandArgument="Last" OnClick="LastPage_Click" >最后一页</asp:LinkButton>

<asp:TextBox ID="TextGotoPage" runat="server" Font-Size="16px" CssClass="pageeditbox" Width="22px" Height="20px"></asp:TextBox>

<asp:Button ID="PageGo" Font-Size="16px" causesvalidation="False" commandargument="-1" commandname="Page" runat="server" CssClass="pagebutton" Text="Go" OnClick="PageGo_Click" Height="23px" Width="28px" />

</div>

</td>

<td style="width: 80px; height: 13px">

<div style="width: 4px; height: 1px">

</div>

</td>

</tr>

</table>

</asp:Panel>

<asp:HiddenField ID="HiddenFieldWhereCondition" runat="server" />

<asp:HiddenField ID="HiddenFieldPageIndex" runat="server" />

<asp:HiddenField ID="HiddenFieldPageCount" runat="server" />

<asp:HiddenField ID="HiddenFieldRecordCount" runat="server" />

<asp:HiddenField ID="HiddenFieldGridViewSortExpression" runat="server" />

<asp:HiddenField ID="HiddenFieldGridViewSortDirection" runat="server" />

<asp:HiddenField ID="HiddenKeyWord" runat="server" />

</td></tr>

</table>
后台的CS代码:

Code

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using Bussiness;

public partial class DataShow : System.Web.UI.UserControl

{

public string GridViewSortExpression = "AddDate";

public string GridViewSortDirection = "DESC";

public int RecordCount = 0;

public int PageIndex = 0;

public int PageCount = 0;

public string WhereCondition = string.Empty;

FilesBussiness files = new FilesBussiness();

DataTable dt = new DataTable();

protected void Page_Load(object sender, EventArgs e)

{

//this.PageGo.Attributes.Add("onclick", "if(1){alert(((document.all('ctl00$ContentPlaceHolderSearch$MyDataList1$TextGotoPage')).value);document.all('ctl00$ContentPlaceHolderSearch$MyDataList1$TextGotoPage').focus();return false;}");

}

public void SetSortExpress(string expression, string direction)

{

GridViewSortExpression = expression;

GridViewSortDirection = direction;

this.HiddenFieldGridViewSortExpression.Value = expression;

this.HiddenFieldGridViewSortDirection.Value = direction;

}

public void SetAllowSort(bool flag)

{

this.GridViewFileList.AllowSorting =flag;

}

public void BindDataSource(string WhereCondition,string KeyWord)

{

RecordCount = files.SelectPageFilesCount(WhereCondition);

this.HiddenKeyWord.Value = KeyWord;

PageIndex = 1;

if (RecordCount % this.GridViewFileList.PageSize > 0)

PageCount = RecordCount / this.GridViewFileList.PageSize + 1;

else

PageCount = RecordCount / this.GridViewFileList.PageSize;

dt = files.SelectPageFiles(WhereCondition, 1, this.GridViewFileList.PageSize, GridViewSortExpression + " " + GridViewSortDirection);

this.GridViewFileList.DataSource = dt;

this.GridViewFileList.DataBind();

if (RecordCount > 0)

{

this.PanelPageTable.Visible = true;

}

else

{

this.PanelPageTable.Visible = false;

}

if (!GridViewSortExpression.Equals("AddDate"))

{

changeHeaders(this.GridViewFileList.HeaderRow);

this.GridViewFileList.DataBind();

}

this.HiddenFieldWhereCondition.Value = WhereCondition;

this.HiddenFieldGridViewSortExpression.Value = GridViewSortExpression;

this.HiddenFieldGridViewSortDirection.Value = GridViewSortDirection;

this.HiddenFieldPageIndex.Value = PageIndex.ToString();

this.HiddenFieldRecordCount.Value = RecordCount.ToString();

this.HiddenFieldPageCount.Value = PageCount.ToString();

this.TextGotoPage.Text = PageIndex.ToString();

}

protected void FirstPage_Click(object sender, EventArgs e)

{

GridViewSortExpression = this.HiddenFieldGridViewSortExpression.Value.Trim();

GridViewSortDirection = this.HiddenFieldGridViewSortDirection.Value.Trim();

PageIndex = Int32.Parse(this.HiddenFieldPageIndex.Value.Trim());

WhereCondition = this.HiddenFieldWhereCondition.Value;

PageIndex = 1;

RecordCount = files.SelectPageFilesCount(WhereCondition);

if (RecordCount % this.GridViewFileList.PageSize > 0)

PageCount = RecordCount / this.GridViewFileList.PageSize + 1;

else

PageCount = RecordCount / this.GridViewFileList.PageSize;

this.TextGotoPage.Text = Convert.ToString(PageIndex);

this.GridViewFileList.DataSource = files.SelectPageFiles(WhereCondition, PageIndex, this.GridViewFileList.PageSize, GridViewSortExpression + " " + GridViewSortDirection);

this.GridViewFileList.DataBind();

changeHeaders(this.GridViewFileList.HeaderRow);

this.GridViewFileList.DataBind();

this.HiddenFieldPageIndex.Value = PageIndex.ToString();

this.HiddenFieldRecordCount.Value = RecordCount.ToString();

this.HiddenFieldPageCount.Value = PageCount.ToString();

if (RecordCount > 0)

{

this.PanelPageTable.Visible = true;

}

else

{

this.PanelPageTable.Visible = false;

}

}

protected void PreviousPage_Click(object sender, EventArgs e)

{

GridViewSortExpression = this.HiddenFieldGridViewSortExpression.Value.Trim();

GridViewSortDirection = this.HiddenFieldGridViewSortDirection.Value.Trim();

PageIndex = Int32.Parse(this.HiddenFieldPageIndex.Value.Trim());

WhereCondition = this.HiddenFieldWhereCondition.Value;

RecordCount = files.SelectPageFilesCount(WhereCondition);

if (RecordCount % this.GridViewFileList.PageSize > 0)

PageCount = RecordCount / this.GridViewFileList.PageSize + 1;

else

PageCount = RecordCount / this.GridViewFileList.PageSize;

PageIndex = (PageIndex - 1) <= 0 ? 1 : PageIndex - 1;

this.TextGotoPage.Text = Convert.ToString(PageIndex);

this.GridViewFileList.DataSource = files.SelectPageFiles(WhereCondition, PageIndex, this.GridViewFileList.PageSize, GridViewSortExpression + " " + GridViewSortDirection);

this.GridViewFileList.DataBind();

changeHeaders(this.GridViewFileList.HeaderRow);

this.GridViewFileList.DataBind();

this.HiddenFieldPageIndex.Value = PageIndex.ToString();

this.HiddenFieldRecordCount.Value = RecordCount.ToString();

this.HiddenFieldPageCount.Value = PageCount.ToString();

if (RecordCount > 0)

{

this.PanelPageTable.Visible = true;

}

else

{

this.PanelPageTable.Visible = false;

}

}

protected void NextPage_Click(object sender, EventArgs e)

{

GridViewSortExpression = this.HiddenFieldGridViewSortExpression.Value.Trim();

GridViewSortDirection = this.HiddenFieldGridViewSortDirection.Value.Trim();

PageIndex = Int32.Parse(this.HiddenFieldPageIndex.Value.Trim());

WhereCondition = this.HiddenFieldWhereCondition.Value;

RecordCount = files.SelectPageFilesCount(WhereCondition);

if (RecordCount % this.GridViewFileList.PageSize > 0)

PageCount = RecordCount / this.GridViewFileList.PageSize + 1;

else

PageCount = RecordCount / this.GridViewFileList.PageSize;

PageIndex = (PageIndex + 1) >= PageCount ? PageCount : PageIndex + 1;

this.TextGotoPage.Text = Convert.ToString(PageIndex);

this.GridViewFileList.DataSource = files.SelectPageFiles(WhereCondition, PageIndex, this.GridViewFileList.PageSize, GridViewSortExpression + " " + GridViewSortDirection);

this.GridViewFileList.DataBind();

changeHeaders(this.GridViewFileList.HeaderRow);

this.GridViewFileList.DataBind();

this.HiddenFieldPageIndex.Value = PageIndex.ToString();

this.HiddenFieldRecordCount.Value = RecordCount.ToString();

this.HiddenFieldPageCount.Value = PageCount.ToString();

if (RecordCount > 0)

{

this.PanelPageTable.Visible = true;

}

else

{

this.PanelPageTable.Visible = false;

}

}

protected void LastPage_Click(object sender, EventArgs e)

{

GridViewSortExpression = this.HiddenFieldGridViewSortExpression.Value.Trim();

GridViewSortDirection = this.HiddenFieldGridViewSortDirection.Value.Trim();

PageIndex = Int32.Parse(this.HiddenFieldPageIndex.Value.Trim());

WhereCondition = this.HiddenFieldWhereCondition.Value;

RecordCount = files.SelectPageFilesCount(WhereCondition);

if (RecordCount % this.GridViewFileList.PageSize > 0)

PageCount = RecordCount / this.GridViewFileList.PageSize + 1;

else

PageCount = RecordCount / this.GridViewFileList.PageSize;

PageIndex = PageCount;

this.TextGotoPage.Text = Convert.ToString(PageIndex);

this.GridViewFileList.DataSource = files.SelectPageFiles(WhereCondition, PageIndex, this.GridViewFileList.PageSize, GridViewSortExpression + " " + GridViewSortDirection);

this.GridViewFileList.DataBind();

changeHeaders(this.GridViewFileList.HeaderRow);

this.GridViewFileList.DataBind();

this.HiddenFieldPageIndex.Value = PageIndex.ToString();

this.HiddenFieldRecordCount.Value = RecordCount.ToString();

this.HiddenFieldPageCount.Value = PageCount.ToString();

if (RecordCount > 0)

{

this.PanelPageTable.Visible = true;

}

else

{

this.PanelPageTable.Visible = false;

}

}

protected void PageGo_Click(object sender, EventArgs e)

{

GridViewSortExpression = this.HiddenFieldGridViewSortExpression.Value.Trim();

GridViewSortDirection = this.HiddenFieldGridViewSortDirection.Value.Trim();

PageIndex = Int32.Parse(this.HiddenFieldPageIndex.Value.Trim());

ValidateBussiness v = new ValidateBussiness();

if (this.TextGotoPage.Text.Trim() == "")

this.TextGotoPage.Text = "1";

if (!v.Number(this.TextGotoPage.Text.Trim()))

FilesBussiness.MessageBox(Response, "输入不正确", true);

else

{

WhereCondition = this.HiddenFieldWhereCondition.Value;

RecordCount = files.SelectPageFilesCount(WhereCondition);

if (RecordCount % this.GridViewFileList.PageSize > 0)

PageCount = RecordCount / this.GridViewFileList.PageSize + 1;

else

PageCount = RecordCount / this.GridViewFileList.PageSize;

PageIndex = Int32.Parse(this.TextGotoPage.Text.Trim());

if (PageIndex > PageCount)

PageIndex = PageCount;

else if (PageIndex <= 0)

PageIndex = 1;

this.TextGotoPage.Text = Convert.ToString(PageIndex);

this.GridViewFileList.DataSource = files.SelectPageFiles(WhereCondition, PageIndex, this.GridViewFileList.PageSize, GridViewSortExpression + " " + GridViewSortDirection);

this.GridViewFileList.DataBind();

changeHeaders(this.GridViewFileList.HeaderRow);

this.GridViewFileList.DataBind();

this.HiddenFieldPageIndex.Value = PageIndex.ToString();

this.HiddenFieldRecordCount.Value = RecordCount.ToString();

this.HiddenFieldPageCount.Value = PageCount.ToString();

if (RecordCount > 0)

{

this.PanelPageTable.Visible = true;

}

else

{

this.PanelPageTable.Visible = false;

}

}

}

protected void GridViewFileList_RowDataBound(object sender, GridViewRowEventArgs e)

{

ArrayList list = new ArrayList();

if (this.HiddenKeyWord .Value .Trim()!= "")

{

if (e.Row.RowType == DataControlRowType.DataRow)

{

string temp = ((HyperLink)e.Row.FindControl("FileName")).Text; //((System.Data.DataRowView)(e.Row.DataItem)).Row.ItemArray[1].ToString();

list = files.SplitString(this.HiddenKeyWord.Value.Trim(), " ");

int length = temp.Length;

for (int i = 0; i < list.Count; i++)

{

if (temp.IndexOf(list[i].ToString()) >= 0)

{

((HyperLink)e.Row.FindControl("FileName")).Text = temp.Substring(0, temp.IndexOf(list[i].ToString()));

((HyperLink)e.Row.FindControl("FileName")).Text += "<font color=red>" + list[i].ToString() + "</font>";

((HyperLink)e.Row.FindControl("FileName")).Text += temp.Substring(temp.IndexOf(list[i].ToString()) + list[i].ToString().Length);

temp = ((HyperLink)e.Row.FindControl("FileName")).Text;

length = temp.Length;

}

}

}

}

}

/// <summary>

/// 为GridView.HeaderRow添加排序标识符

/// </summary>

/// <param name="headerRow">GridViewRow</param>

private void changeHeaders(GridViewRow headerRow)

{

if (this.GridViewFileList.Rows.Count > 0)

{

for (int i = 0; i < headerRow.Cells.Count; i++)

{

if (headerRow.Cells[i] is DataControlFieldCell)

{

DataControlField field = ((DataControlFieldCell)headerRow.Cells[i]).ContainingField;

if (field.HeaderText.IndexOf("↓") >= 0 || field.HeaderText.IndexOf("↑") >= 0)

field.HeaderText = field.HeaderText.Substring(0, field.HeaderText.Length - "<font color='#FF0000'>↓</font>".Length); //把开始的排序方式去掉

if (this.HiddenFieldGridViewSortExpression.Value != "" && this.HiddenFieldGridViewSortExpression.Value.Trim().Equals(field.SortExpression.Trim()))

{

if (this.HiddenFieldGridViewSortDirection.Value.Equals("DESC")) //增加新的排序方式

field.HeaderText = field.HeaderText + "<font color='#FF0000'>↓</font>";

else

field.HeaderText = field.HeaderText + "<font color='#FF0000'>↑</font>";

}

}

}

}

}

/// <summary>

/// GridView排序

/// </summary>

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

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

protected void GridViewFileList_Sorting(object sender, GridViewSortEventArgs e)

{

GridViewSortExpression = this.HiddenFieldGridViewSortExpression.Value.Trim();

GridViewSortDirection = this.HiddenFieldGridViewSortDirection.Value.Trim();

PageIndex = Int32.Parse(this.HiddenFieldPageIndex.Value.Trim());

if (GridViewSortExpression.Equals(e.SortExpression))

{

GridViewSortExpression = e.SortExpression;

if (GridViewSortDirection.Equals("ASC"))

{

GridViewSortDirection = "DESC";

this.HiddenFieldGridViewSortExpression.Value = GridViewSortExpression;

//this.GridViewFileList.DataSource =files.SelectPageFiles(this.HiddenFieldWhereCondition.Value, PageIndex, this.GridViewFileList.PageSize, GridViewSortExpression + " " + GridViewSortDirection);

}

else if (GridViewSortDirection.Equals("DESC"))

{

GridViewSortDirection = "ASC";

this.HiddenFieldGridViewSortExpression.Value = GridViewSortExpression;

//this.GridViewFileList.DataSource = files.SelectPageFiles(this.HiddenFieldWhereCondition.Value, PageIndex, this.GridViewFileList.PageSize, GridViewSortExpression + " " + GridViewSortDirection);

}

else

{

GridViewSortDirection = "DESC";

this.HiddenFieldGridViewSortExpression.Value = GridViewSortExpression;

//this.GridViewFileList.DataSource = files.SelectPageFiles(this.HiddenFieldWhereCondition.Value, PageIndex, this.GridViewFileList.PageSize, GridViewSortExpression + " " + GridViewSortDirection);

}

}

else

{

GridViewSortDirection = "DESC";

GridViewSortExpression = e.SortExpression;

this.HiddenFieldGridViewSortExpression.Value = GridViewSortExpression;

}

this.HiddenFieldGridViewSortDirection.Value = GridViewSortDirection;

RecordCount = files.SelectPageFilesCount(this.HiddenFieldWhereCondition.Value);

if (RecordCount % this.GridViewFileList.PageSize > 0)

PageCount = RecordCount / this.GridViewFileList.PageSize + 1;

else

PageCount = RecordCount / this.GridViewFileList.PageSize;

this.GridViewFileList.DataSource = files.SelectPageFiles(this.HiddenFieldWhereCondition.Value, PageIndex, this.GridViewFileList.PageSize, GridViewSortExpression + " " + GridViewSortDirection);

this.GridViewFileList.DataBind();

changeHeaders(this.GridViewFileList.HeaderRow);

this.GridViewFileList.DataBind();

this.HiddenFieldPageIndex.Value = PageIndex.ToString();

this.HiddenFieldRecordCount.Value = RecordCount.ToString();

this.HiddenFieldPageCount.Value = PageCount.ToString();

if (RecordCount > 0)

{

this.PanelPageTable.Visible = true;

}

else

{

this.PanelPageTable.Visible = false;

}

}

}

调用的函数:

public DataTable SelectPageFiles(string WhereCondition, int PageIndex, int PageCount, string OrderCondition)

分页存储过程的参数:

--根据条件显示相应的记录，并分页。

ALTER PROC SelectPageFiles

@WhereCondition nvarchar(500), --查询条件

@PageIndex int, --页号

@PageCount int, --每页的记录数

@OrderCondition varchar(50) --排序条件

as.....

调用控件声明:

<%@ register tagprefix="MyTag" tagname="MyDataList" src="~/DataShow.ascx" %>

定义控件:

<MyTag:MyDataList id="MyDataList1" runat="server"></MyTag:MyDataList>

调用分页控件:

this.MyDataList1.BindDataSource(WhereCondition, this.keyword.Text.Trim());