GridView无刷新手动分页

最新推荐文章于 2012-08-08 10:59:23 发布

wenyang2004

最新推荐文章于 2012-08-08 10:59:23 发布

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分类专栏： ASP.NET2.0 文章标签： asp server object border system string

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本文介绍如何使用ASP.NET中的GridView控件实现无刷新手动分页功能。通过结合UpdatePanel和LinkButton控件，可以实现在不重新加载整个页面的情况下进行数据分页。此外，还介绍了如何设置页面总数、当前页数以及记录总数。

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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<title>GridView无刷新手动分页</title>

</head>

<body>

<asp:ScriptManager ID="ScriptManager1" runat="server" />

 <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ehMemberConnectionString %>"

SelectCommand="SELECT * FROM [CertificateTypes]" ProviderName="<%$ ConnectionStrings:ehMemberConnectionString.ProviderName %>"></asp:SqlDataSource>

<asp:UpdatePanel ID="UpdatePanel1" runat="server">

<tr>

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"

DataKeyNames="ID" DataSourceID="SqlDataSource1" PageSize="2" Width="466px" AllowPaging="True">

<asp:BoundField DataField="ID" HeaderText="ID" InsertVisible="False" ReadOnly="True"

SortExpression="ID" />

<asp:BoundField DataField="CertificateTypesName" HeaderText="CertificateTypesName"

SortExpression="CertificateTypesName" />

<asp:BoundField DataField="Remark" HeaderText="Remark" SortExpression="Remark" />

</Columns>

</asp:GridView>

</td>

</tr>

<tr>

<asp:LinkButton ID="btnFirst" CommandArgument="first" OnClick="PagerButtonClick" runat="server">首页</asp:LinkButton>

<asp:LinkButton ID="btnPrev" CommandArgument="prev" OnClick="PagerButtonClick" runat="server">上一页</asp:LinkButton>

<asp:LinkButton ID="btnNext" CommandArgument="next" OnClick="PagerButtonClick" runat="server">下一页</asp:LinkButton>

<asp:LinkButton ID="btnLast" CommandArgument="last" OnClick="PagerButtonClick" runat="server">尾页</asp:LinkButton>

<asp:Label ID="LblCurrentIndex" runat="server"></asp:Label>

<asp:Label ID="LblPageCount" runat="server"></asp:Label>

<asp:Label ID="LblRecordCount" runat="server"></asp:Label>

<asp:DropDownList ID="DropDownList2" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList2_SelectedIndexChanged" Height="10px" Width="38px"></asp:DropDownList>

</td>

</tr>

</table>

</ContentTemplate>

</asp:UpdatePanel>

</form>

</body>

</html>

using System;

using System.Data;

using System.Configuration;

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;

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

if (!Page.IsPostBack)

{

GridViewBind();

for (int i = 1; i < GridView1.PageCount + 1; i++)

{

DropDownList2.Items.Add(i.ToString());

}

private void GridViewBind()

{

GridView1.DataBind();

DataView dv = (DataView)SqlDataSource1.Select(DataSourceSelectArguments.Empty);

LblCurrentIndex.Text = "第 " + (GridView1.PageIndex + 1).ToString() + " 页";

LblPageCount.Text = "共 " + GridView1.PageCount.ToString() + " 页";

LblRecordCount.Text = "总共 " + dv.Count.ToString() + " 条";

}

protected void PagerButtonClick(object sender, EventArgs e)

{

string arg = ((LinkButton)sender).CommandArgument.ToString();

switch (arg)

{

case "prev":

if (GridView1.PageIndex > 0)

{

GridView1.PageIndex -= 1;

DropDownList2.SelectedValue = (GridView1.PageIndex+1).ToString();

}

break;

case "next":

if (GridView1.PageIndex < (GridView1.PageCount - 1))

{

GridView1.PageIndex += 1;

DropDownList2.SelectedValue = (GridView1.PageIndex + 1).ToString();

}

break;

case "last":

GridView1.PageIndex = (GridView1.PageCount - 1);

DropDownList2.SelectedValue = (GridView1.PageIndex + 1).ToString();

break;

default:

GridView1.PageIndex = 0;

DropDownList2.SelectedValue = (GridView1.PageIndex + 1).ToString();

break;

}

GridViewBind();

}

protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)

{

GridView1.PageIndex = Convert.ToInt32(DropDownList2.SelectedValue)-1;

}