我必须做数字验证使用JavaScript [英] i have to do numbers validate using javascript

问题描述

大家好，

我必须使用javascript进行数字验证，因为我对javascript的了解很少，我的应用程序流程应该是这样，
我有一个文本框，我确认只允许数字，以数字为单位，我最多只能允许10,11位数字，但是在我的javascript代码中，该字符不允许仅允许我需要的数字的字符，但其最多不能允许10,11位数字，请查看以下代码，

javascript:

Hi all,

I have to do numbers validation using javascript, In that i have few douts about javascript, My application flow should like this,
i have one textbox which i validate to allow only digits , in digits i have allow up to 10,11 digits only but in my javascript code which cannot allow characters which is allowed only numbers thats i need But its cannot allow upto 10,11 digits, please find out the below code,

javascript:

<script type="text/javascript">
    function validate()
    {
    var Tel = document.getElementById("<%=TextBox1.ClientID%>")

    if(Tel.value == "")
    {
    alert("Enter Your Telephone No");
    Tel.focus();
    return false;
    }
    var emailPat = /d[10,11]+$/;
    var emailid=Tel.value;
    var matchArray = emailid.match(emailPat);
    if (matchArray == null)
    {
    alert("It allows only digits (10-11 digits)");
    Tel.focus();
    return false;
    }


    }
    </script>

推荐答案

/; var emailid = Tel.value; var matchArray = emailid.match(emailPat); 如果(matchArray == null) { alert(只允许数字(10-11位)"); Tel.focus(); 返回false； } } < /script >

/; var emailid=Tel.value; var matchArray = emailid.match(emailPat); if (matchArray == null) { alert("It allows only digits (10-11 digits)"); Tel.focus(); return false; } } </script>

嗨....您可以尝试这个

Hay.... you can try this one

function PhoneValidations(event) {
    var val;
    if (navigator.appName == "Microsoft Internet Explorer")
        val = window.event.keyCode;
    else
        val = event.which;
    if (val == 0)
        val = event.keyCode;

    if ((val >= 48 && val <= 57) || val == 45 || val == 37 || val == 39 || val == 9 || val == 40 || val == 41 || val == 32) {
        return true;
    }
    else if (val == 8)
        return true;
    else
        return false;
}

在Args中，您需要传递e. (即页面事件)

Umesh Pansara

In Args you need to pass the e. (i.e. the event of page)

Umesh Pansara

如果您使用的是C#，请尝试此操作.
这个简单然后javascript

If you are using C# then try this.
This simple then javascript

<asp:TextBox ID="txt_ID" runat="server" ></asp:TextBox>
//Add Extender
<asp:FilteredTextBoxExtender ID="txt_ID_FilteredTextBoxExtender" FilterType="Numbers" runat="server" Enabled="True" TargetControlID="txt_ID"> </asp:FilteredTextBoxExtender>

这篇关于我必须做数字验证使用JavaScript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！