开始时Javascript错误

Question

当我启动页面时,它给了我这个错误.我可以按否,但代码不起作用.

代码是我如何修复此错误？顺便说一下按钮浏览打开文件上载但是在c#中提前感谢.

    <%@ control language="C#" autoeventwireup="true" inherits="Web_Controls_SOLATDFileChooser, App_Web_ivmyhbca" %>

<!--2012-05-11 TP : Redesign da página web -->
<link rel="stylesheet" type="text/css" href="../styles/CMM/InternetFace.css" />
<style type="text/css">
    div.fileinputs
    {
        position: relative;
    }

    div.fakefile
    {
        position: absolute;
        top: 0px;
        left: 0px;
        z-index: 1;
    }

    input.file
    {
        visibility: hidden;
    }
</style>
<script type="text/javascript" language="javascript">
    function clear() {
        document.getElementById("<%=FileUpload1.ClientID %>").value = "";
        document.getElementById("<%=txtFileName.ClientID %>").value = "";
    }
</script>
<script type="text/javascript" language="javascript">
    function uploadFileChange() {
    document.getElementById("<%=txtFileName.ClientID %>").value = document.getElementById("<%=FileUpload1.ClientID %>").value;
    }

</script>

<table width="500px">
    <tr>
        <td valign="middle">
            <div class="fileinputs">
                <!-- Upload file invisivel-->
                <asp:FileUpload ID="FileUpload1" class="file" runat="server"
                    onchange="uploadFileChange();" />
                <!-- button e textbox falsas para poder dar syles-->
                <div class="fakefile">
                    <!--textbox onde está o path do ficheiro-->
                    <asp:TextBox ID="txtFileName" CssClass="textbox"  runat="server"
                        Width="300px" ReadOnly="true" />
                    <!-- button de browse-->
                    <asp:Button ID="btnBrowse" runat="server" Text="Procurar..."
                        ForeColor="White" Height="21px" />
                    <!--button para apagar o path ja que a textbox esta em read-only para prevenir erros-->
                    <asp:Button ID="btnCancel" Height="21px" CssClass="btnSubmit" Text="Apagar" ForeColor="White"
                        OnClientClick="clear();" runat="server" />
                </div>
            </div>
        </td>
    </tr>
</table>

Answer 1

你在那段代码中有很多错误

1. 额外;之后{(在两个函数中(在您更新之前)
2. documente而不是document (在你更新之前)
3. 你调用一个未定义的函数UploadFileChange(你调用它UploadFielChange)(在你更新之前)
4. 里面没有引号 getElementById()

作为旁注,关闭一个script块然后在下一行重新打开另一个块是没用的.这两个函数都可以包含在同一个script块中