在ASP.NET中,为了保持分页状态,您可以使用以下方法:
<asp:GridView ID="GridView1" runat="server" EnableViewState="true" OnPageIndexChanging="GridView1_PageIndexChanging">
</asp:GridView>
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
Session["currentPage"] = e.NewPageIndex;
GridView1.PageIndex = e.NewPageIndex;
BindGridView();
}
然后,在Page_Load事件中,您可以从Session中检索当前页码并设置GridView的PageIndex属性:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
int currentPage = Convert.ToInt32(Session["currentPage"]);
GridView1.PageIndex = currentPage;
BindGridView();
}
}
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
HttpCookie cookie = new HttpCookie("currentPage");
cookie.Value = e.NewPageIndex.ToString();
Response.Cookies.Add(cookie);
GridView1.PageIndex = e.NewPageIndex;
BindGridView();
}
然后,在Page_Load事件中,您可以从Cookie中检索当前页码并设置GridView的PageIndex属性:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
HttpCookie cookie = Request.Cookies["currentPage"];
if (cookie != null)
{
int currentPage = Convert.ToInt32(cookie.Value);
GridView1.PageIndex = currentPage;
BindGridView();
}
}
}
这些方法可以帮助您在ASP.NET分页中保持状态。根据您的需求和应用场景,可以选择最适合您的方法。