如何使用 jQuery 设置文本标签?
我想在单击按钮后使用 jQuery 将文本设置为标签。我编写了代码并且它有效,但是在我在标签中设置文本后,标签返回其旧状态。这是我的代码:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="DynamicWebApplication.WebForm2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
function f()
{
$('#<%=Label1.ClientID%>').html("hello");
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server"></asp:Label>
<p></p>
<asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="f();"/>
</div>
</form>
</body>
</html>
I want to set text to label with jQuery after clicking on button. I wrote code and it works, but after I set text in my label, label return his old state. Here is my code:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="DynamicWebApplication.WebForm2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
function f()
{
$('#<%=Label1.ClientID%>').html("hello");
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server"></asp:Label>
<p></p>
<asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="f();"/>
</div>
</form>
</body>
</html>
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如果您的按钮导致回发,则页面重新加载后更改将丢失。试试这个 -
If your button is causing a postback then the changes will be lost after the page has reloaded. Try this -
标签不维护视图状态。服务器不会将该信息发布回服务器。您可以尝试在标签上显式启用 ViewState,但如果这不起作用,则必须将该值存储在隐藏字段中。
Labels do not maintain viewstate. The server will not post that information back to the server. You can try explicitly enabling the ViewState on your Label, but if that doesn't work, you will have to store that value in a hidden field.
您可以使用
text
方法来设置文本You can use
text
method to set the text我会用这个,
I would use this,
或者
OR