C# GridView 排序及分页
2019-06-14 08:02:43来源： 阅读 ()
如果你在GridView控件上设置 AllowPaging="true" or AllowSorting="true" 而没有使用使用数据源控件 DataSource (i.e. SqlDataSource, ObjectDataSource),运行则会出现下列错误。
当你在GridView控件上单击下一页时：
The GridView 'GridViewID' fired event PageIndexChanging which wasn't handled.
当你点击排序时，则回出现：
The GridView 'GridViewID' fired event Sorting which wasn't handled.
如果你没有设置GridView的DataSourceID 的属性，你必须添加一个操作才可以排序及分页。。
; 点这里查看下面的例子
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OleDb" %>
<script runat="server">;;;
PRivate void PopulatePublishersGridView()
{
string connectionString = accessConnectionString();
OleDbConnection accessConnection = new OleDbConnection(connectionString);
string sqlQuery = "SELECT [PubID], [Name], [Company Name], [Address], [City], [State], [Zip], [Telephone], [Fax], [Comments] FROM Publishers ORDER BY [Name] ASC;";
OleDbCommand accessCommand = new OleDbCommand(sqlQuery, accessConnection);
OleDbDataAdapter publishersDataAdapter = new OleDbDataAdapter(accessCommand);
DataTable publishersDataTable = new DataTable("Publishers");
publishersDataAdapter.Fill(publishersDataTable);
int dataTableRowCount = publishersDataTable.Rows.Count;
if (dataTableRowCount > 0)
{
gridViewPublishers.DataSource = publishersDataTable;
gridViewPublishers.DataBind();
}
}
private string AccessConnectionString()
{
string accessDatabasePath = Server.MapPath("~/App_Data/biblio.mdb");
return String.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};", accessDatabasePath);
}
private string GridViewSortDirection
{
get { return ViewState["SortDirection"] as string ?? "ASC"}
set { ViewState["SortDirection"] = value; }
}
private string GridViewSortExpression
{
get { return ViewState["SortExpression"] as string ?? string.Empty; }
set { ViewState["SortExpression"] = value; }
}
private string GetSortDirection()
{
switch (GridViewSortDirection)
{
case "ASC":
GridViewSortDirection = "DESC";
break;
case "DESC":
GridViewSortDirection = "ASC";
break;
}
return GridViewSortDirection;
}
protected void gridViewPublishers_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
gridViewPublishers.DataSource = SortDataTable(gridViewPublishers.DataSource as DataTable, true);
gridViewPublishers.PageIndex = e.NewPageIndex;
gridViewPublishers.DataBind();
}
protected DataView SortDataTable(DataTable dataTable, bool isPageIndexChanging)
{
if (dataTable != null)
{
DataView dataView = new DataView(dataTable);
if (GridViewSortExpression != string.Empty)
{
if (isPageIndexChanging)
{
dataView.Sort = string.Format("{0} {1}", GridViewSortExpression, GridViewSortDirection);
}
else
{
dataView.Sort = string.Format("{0} {1}", GridViewSortExpression, GetSortDirection());
}
}
return dataView;
}
else
{
return new DataView();
}
}
protected void gridViewPublishers_Sorting(object sender, GridViewSortEventArgs e)
{
GridViewSortExpression = e.SortExpression;
int pageIndex = gridViewPublishers.PageIndex;
gridViewPublishers.DataSource = SortDataTable(gridViewPublishers.DataSource as DataTable, false);
gridViewPublishers.DataBind();
gridViewPublishers.PageIndex = pageIndex;
}
protected void Page_Load(object sender, EventArgs e)
{
PopulatePublishersGridView();
}
</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>GridView Sorting/Paging without a DataSourceControl DataSource</title>
</head>
<body>
<form id="form" runat="server">
<div>
<asp:GridView ID="gridViewPublishers" AllowPaging="true" AllowSorting="true" AutoGenerateColumns="false"
EmptyDataText="No records found" PagerSettings-Mode="NumericFirstLast" PageSize="25"
OnPageIndexChanging="gridViewPublishers_PageIndexChanging" OnSorting="gridViewPublishers_Sorting"
runat="server">
<AlternatingRowStyle BackColor="LightGray" />
<HeaderStyle BackColor="Gray" Font-Bold="true" Font-Names="Verdana" Font-Size="Small" />
<PagerStyle BackColor="DarkGray" Font-Names="Verdana" Font-Size="Small" />
<RowStyle Font-Names="Verdana" Font-Size="Small" />
<Columns>
<asp:BoundField DataField="PubID" HeaderText="Publisher ID" SortExpression="PubID" />
<asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
<asp:BoundField DataField="Company Name" HeaderText="Company Name" SortExpression="Company Name" />
<asp:BoundField DataField="Address" HeaderText="Address" SortExpression="Address" />
<asp:BoundField DataField="City" HeaderText="City" SortExpression="City" />
<asp:BoundField DataField="State" HeaderText="State" SortExpression="State" />
<asp:BoundField DataField="Zip" HeaderText="Zip" SortExpression="Zip" />
<asp:BoundField DataField="Telephone" HeaderText="Telephone" SortExpression="Telephone" />
<asp:BoundField DataField="Fax" HeaderText="Fax" SortExpression="Fax" />
<asp:BoundField DataField="Comments" HeaderText="Comments" SortExpression="Comments" />
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
标签：
版权申明：本站文章部分自网络，如有侵权，请联系：west999com@outlook.com
特别注意：本站所有转载文章言论不代表本站观点，本站所提供的摄影照片，插画，设计作品，如需使用，请与原作者联系，版权归原作者所有
下一篇：用VC++实现不规则窗口
- C++冒泡排序 （基于函数模板实现） 2020-05-31
- 排序汇总 2020-05-05
- 二叉排序树 2020-05-02
- 排序算法之快速排序代码c++ 2020-04-01
- tmp 2020-04-01
IDC资讯： 主机资讯 注册资讯 托管资讯 vps资讯 网站建设
网站运营： 建站经验 策划盈利 搜索优化 网站推广 免费资源
网络编程： Asp.Net编程 Asp编程 Php编程 Xml编程 Access Mssql Mysql 其它
服务器技术： Web服务器 Ftp服务器 Mail服务器 Dns服务器 安全防护
软件技巧： 其它软件 Word Excel Powerpoint Ghost Vista QQ空间 QQ FlashGet 迅雷
网页制作： FrontPages Dreamweaver Javascript css photoshop fireworks Flash
