Javascript 是否可以在提交之前从文本框中检索值?
我有一个Javascript 是否可以在提交之前从文本框中检索值?,javascript,c#,html,asp.net,.net,Javascript,C#,Html,Asp.net,.net,我有一个文本框,用户可以在其中输入手机号码 <input type="number" name="mobileNumber" id="mobileNumber" runat="server" /> 我的预期输出是其中uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu (显然我还没有足够的点数来嵌入图片?) 我要做的是从文本框中检索值,并用
文本框
,用户可以在其中输入手机号码
<input type="number" name="mobileNumber" id="mobileNumber" runat="server" />
我的预期输出是其中uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
(显然我还没有足够的点数来嵌入图片?)
我要做的是从文本框
中检索值
,并用它替换对话框
中的下划线
下面是我从文本框
检索值的C#尝试:
string confirmNumber = mobileNumber.Value;
我认为C代码只能在用户提交后检索值
?我不是很确定。请提供帮助。若要在文本框中显示在客户端输入的值,可以使用javascript,您已经需要向用户显示该值。您必须使用输入的ClientID在javascript中获取其html元素
number = document.getElementById("<%=mobileNumber.ClientID%>").value;
var answer = confirm("The number you have entered is" + number + ".\nPlease verify if the number you have entered is correct.")
number=document.getElementById(“”)值;
var answer=confirm(“您输入的号码是“+number+”)\n请验证您输入的号码是否正确。”)
JQuery是你的朋友……我对JQuery/JavaScript有点陌生,请原谅。无论如何,这是完美的!非常感谢你!
number = document.getElementById("<%=mobileNumber.ClientID%>").value;
var answer = confirm("The number you have entered is" + number + ".\nPlease verify if the number you have entered is correct.")