FileUpload:使用 JS 获取文件名不起作用
FileUpload: Get filenames with JS not working
我想获取文件名并将其放在标签 lbName
中,但此代码无效。我用了asp:FileUpload
。这是我的代码:
<asp:FileUpload ID="FileUpload1" AllowMultiple="true" runat="server" Onchange="upload()"/> <asp:Label ID="lbName" runat="server" ForeColor="Gray" Visible="True"></asp:Label>
和JS代码:
function upload() {
var name = "";
var files = document.getElementById("<%= FileUpload1.ClientID %>");
for (var i = 0; i < files.length; i++) {
name = name + (files[i].name) + ";";
}
document.getElementById("lbName").value = "1: " + name;
}
您可以使用 jQuery 并将更改事件绑定到 input type=file
。
<script type="text/javascript">
$('input[type="file"]').change(function (e) {
var files = [];
for (var i = 0; i < $(this)[0].files.length; i++) {
files.push($(this)[0].files[i].name);
}
$(this).next('span').html(files.join(', '));
});
</script>
或者,如果您想 javascript 工作:
<script type="text/javascript">
function upload() {
var name = "";
var files = document.getElementById("<%= FileUpload1.ClientID %>");
for (var i = 0; i < files.files.length; i++) {
name = name + (files.files[i].name) + ";";
}
document.getElementById("<%= lbName.ClientID %>").innerHTML = "1: " + name;
}
</script>
我想获取文件名并将其放在标签 lbName
中,但此代码无效。我用了asp:FileUpload
。这是我的代码:
<asp:FileUpload ID="FileUpload1" AllowMultiple="true" runat="server" Onchange="upload()"/> <asp:Label ID="lbName" runat="server" ForeColor="Gray" Visible="True"></asp:Label>
和JS代码:
function upload() {
var name = "";
var files = document.getElementById("<%= FileUpload1.ClientID %>");
for (var i = 0; i < files.length; i++) {
name = name + (files[i].name) + ";";
}
document.getElementById("lbName").value = "1: " + name;
}
您可以使用 jQuery 并将更改事件绑定到 input type=file
。
<script type="text/javascript">
$('input[type="file"]').change(function (e) {
var files = [];
for (var i = 0; i < $(this)[0].files.length; i++) {
files.push($(this)[0].files[i].name);
}
$(this).next('span').html(files.join(', '));
});
</script>
或者,如果您想 javascript 工作:
<script type="text/javascript">
function upload() {
var name = "";
var files = document.getElementById("<%= FileUpload1.ClientID %>");
for (var i = 0; i < files.files.length; i++) {
name = name + (files.files[i].name) + ";";
}
document.getElementById("<%= lbName.ClientID %>").innerHTML = "1: " + name;
}
</script>