如果你在GridView控件上設置 AllowPaging="true" or AllowSorting="true" 而沒有使用使用數據源控件 DataSource (i.e. SqlDataSource, ObjectDataSource),運行則會出現下列錯誤：
當你在GridView控件上單擊下一頁時：
The GridView 'GridViewID' fired event PageIndexChanging which wasn't handled.
當你點擊排序時，則回出現：
The GridView 'GridViewID' fired event Sorting which wasn't handled.
如果你沒有設置GridView的DataSourceID 的屬性，你必須添加一個操作才可以排序及分頁。。
點這里查看下面的例子
<%@ 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" " <html xmlns=" <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>
http://www.49028c.com/cygoodyu/archive/2006/11/29/575825.html
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