使用 "for" 属性打开文件对话框

Question

我想在母版页的 link 上有一个“打开文件”对话框。 它在我的网页中有效，但在母版页中无效。

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
        <div class="img-uploader left">
            <label id="img-upload-trigger" for="FileUploadPic">
                <img src="img/image.png" alt="">
            </label>
            <asp:FileUpload ID="FileUploadPic" onchange="this.form.submit()" runat="server" />
        </div>
</asp:Content>

Answer 1

在服务器控件中使用 ClientIDMode="Static"

 <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <div class="img-uploader left">
        <label id="img-upload-trigger" for="FileUploadPic">
            <img src="img/image.png" alt="">
        </label>
        <asp:FileUpload ID="FileUploadPic" onchange="this.form.submit()" runat="server" ClientIDMode="Static"/>
    </div>