回发后JQuery的集文本值丢失文本、回发后、JQuery
2023-09-06 15:12:51
作者：各有所念
<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;
}
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