回发后JQuery的集文本值丢失 [英] JQuery set text value is lost after postback
本文介绍了回发后JQuery的集文本值丢失的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="../js/jquery/jquery-1.4.1.min.js" type="text/javascript"></script>
<script>
function btnSetText_OnClientClick() {
$("#<%= lbl1.ClientID %>").text("123");
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="lbl1" runat="server"></asp:Label>
<asp:Button ID="btnSetText" runat="server" Text="Set Text" OnClientClick="btnSetText_OnClientClick(); return false;" />
<asp:Button ID="btnSubmit" runat="server" Text="Submit" OnClick="btnSubmit_Click" />
</div>
</form>
</body>
</html>
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
string str1 = lbl1.Text;
}
这里的情况是，当用户点击设置文本，jQuery的脚本将更新标签值，当提交按钮被点击，为lbl1.Text值始终是，回发发生后丢失，任何想法？
The scenario here is when user click "set text", the jquery script will update the label value, when the Submit button is click, the value for lbl1.Text is always "", which is lost after postback occurs, any ideas ?
推荐答案
使用 HiddenField 来获取回传后的值
试试这个
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="../js/jquery/jquery-1.4.1.min.js" type="text/javascript"></script>
<script>
function btnSetText_OnClientClick() {
$("#<%= lbl1.ClientID %>").text("123");
$('#HiddenFileldVariable').val($("#<%= lbl1.ClientID %>").text());
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="lbl1" runat="server"></asp:Label>
<asp:Button ID="btnSetText" runat="server" Text="Set Text" OnClientClick="btnSetText_OnClientClick(); return false;" />
<asp:Button ID="btnSubmit" runat="server" Text="Submit" OnClick="btnSubmit_Click" />
<asp:HiddenField ID="HiddenFileldVariable" runat="server" />
</div>
</form>
</body>
</html>
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
string str1 = HiddenFileldVariable.Value;
}
这篇关于回发后JQuery的集文本值丢失的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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