无法将外部javascript文件中的函数调用到我的asp.net项目中 [英] Not able to call function from external javascript file into my asp.net project

问题描述

<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
    <script type="text/javascript" src="JScript.js">

</script>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
&nbsp;&nbsp;&nbsp;&nbsp; firstname&nbsp;&nbsp;
<asp:Button ID="Button1" runat="server" onclick="Button1_Click"

    onclientclick=" return validate()" Text="Button" />
&nbsp;
</asp:Content>

extrenal javascript文件是这个

extrenal javascript file is this

function validate() {
    var firstname;
    firstname = document.getElementById("textbox1").value;
    if (firstname == "") {
        alert(" please enter value");
    }
}

请帮忙。

kindly help guys.

推荐答案

您好，



请用此更改您的javascript功能，然后尝试

Hi,

Please change your javascript function with this and then try

function validate() {
    var firstname;
    firstname = document.getElementById('TextBox1').value;
    if (firstname == "") {
        alert(" please enter value");
        return false;
    }
}

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