当我使用自定义或不标准控件,我更喜欢在一个自定义的方式(与炭分离器例如值)使用隐藏字段和存储数据。
您可以通过Javascript/JQuery填充您的隐藏字段在您的特定事件,然后从代码隐藏您可以阅读隐藏的字段。
更新例如
这只是一个方法可行,但更简单的可能是JQuery的AJAX。
webform.aspx
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="webform.aspx.vb" Inherits="ajax_test.webform" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#send').click(function() {
$('#<%= HFTest.ClientID %>').val($('#theValue').val());
__doPostBack('<%= btn_force_async.ClientID %>','');
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<script type="text/javascript">
Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(BeginRequestHandler);
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);
function BeginRequestHandler(sender, args) {
// Fire before the AJAX request
}
function EndRequestHandler(sender, args) {
// Fire after the AJAX request
if ($('#<%=HFReturnMessage.ClientID %>').val() == 'ok') {
alert('ok!');
} else {
alert($('#<%=HFReturnMessage.ClientID %>').val());
}
}
</script>
<input id="theValue" type="text" value="ok" />
<input id="send" type="button" value="send value" />
<asp:UpdatePanel ID="UPDHiddenFields" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:HiddenField ID="HFTest" runat="server" />
<asp:HiddenField ID="HFReturnMessage" runat="server" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btn_force_async" EventName="click" />
</Triggers>
</asp:UpdatePanel>
<asp:Button ID="btn_force_async" runat="server" style="display:none;"/>
</div>
</form>
</body>
</html>
webform.aspx.vb //代码隐藏
Public Class webform
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If IsPostBack Then
If HFTest.Value = "ok" Then
HFTest.Value = ""
HFReturnMessage.Value = "ok"
Else
HFTest.Value = ""
HFReturnMessage.Value = "error, the HFTest is not ok ! "
End If
UPDHiddenFields.Update() 'Update hidden field panel on client side
End If
End Sub
End Class
希望这有助于你。
你可以发布你到目前为止尝试过的代码吗? –
嗨thx的评论。我只有三个连接列表.. soo没有太多的代码。我现在会尝试巴洛的建议:) – mio