如何在ASP.NET中验证fileupload控件 [英] How to validate fileupload control in ASP.NET
本文介绍了如何在ASP.NET中验证fileupload控件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
function ValidateFile2(){
var fileCount = document .getElementById(' FileuploadStoreImages' ).files.length; // ID
如果 (fileCount< = 0 ) // 至少选择1图像检查
{
alert( 请选择atleat 1图像..! !!跨度>);
return false ;
}
返回 true ;
}
我收到此消息,请选择至少一张图片
但是不工作请帮帮我
解决方案
看到:
< a href =http://stackoverflow.com/questions/833012/how-to-validate-a-file-upload-field-using-javascript-jquery>如何使用Javascript / jquery验证文件上传字段 - Stack溢出 [ ^ ]
使用javascript进行必要的文件上载验证 [ ^ ]
这肯定会有效,只允许.jpg图片。
< 输入 type = file id = file1 名称 = imageFile class = < span class =code-keyword>验证[必需] [自定义[ipv4]] >
其中 class =validate [custom [ipv4]]验证图片。
.css文件:
< link href = 〜/内容/主题/ validationEngine.css rel = 样式表 / >
这个使用下面的.js代码。
< script src = 〜/ Scripts / jquery.validationEngine.js 类型 = text / javascript charset = utf-8 > < / script >
< script src = 〜/ Scripts / jquery.validationEngine-en.js 类型 = text / javascript charset = utf-8 > < / script >
< script type = < span class =code-string> text / javascript>
( function (){
function ValidateFile2() {
var fileCount = document.getElementById('FileuploadStoreImages').files.length; //ID
if (fileCount <= 0) // Selected atleast 1 image check
{
alert("Please select atleat 1 image..!!!");
return false;
}
return true;
}
I am receiving this message like please select at least one image
but its not working please help me
解决方案
See this:
How to validate a file upload field using Javascript/jquery - Stack Overflow[^]
Required Fileupload validation using javascript[^]
This will work definitely and allow only .jpg image.
<input type="file" id="file1" name="imageFile" class="validate[required][custom[ipv4]]">
where class="validate[custom[ipv4]]" validate image.
.css file:
<link href="~/Content/themes/validationEngine.css" rel="stylesheet" />
For this use below .js code.
<script src="~/Scripts/jquery.validationEngine.js" type="text/javascript" charset="utf-8"></script> <script src="~/Scripts/jquery.validationEngine-en.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
(function () {
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