如何清除具有Runat属性的输入类型文件HTML控件的内容 [英] How Do I Clear The Contents Of Input Type File Html Control That Is Having Runat Attribute

问题描述

嗨..！

我的aspx页面中有一个输入type ="file"控件.像下面一样，

Hi..!

I have a input type="file" control in my aspx page. Like Below,

<input type="file" runat ="server" class="_5f0v" title="Choose a file to upload" accept="image/*" name="file" id="File1"  onchange="UploadFileNow()" clientidmode="Static"  />

And UploadFileNow() javascript method is like below,

        function UploadFileNow() {

            var value = $("#File1").val();

            if (value != '') {

                document.forms[0].submit();

            }

        };

Now, After Uploading the file to the server side, im using registerCLient script Like below, 

ScriptManager.RegisterClientScriptBlock(Me, Me.GetType(), "Script", "clearFile();", True)

And, Here is clearFile() Function, 

 function clearFile() {
            
            var control = $("#File1");
            
            control.replaceWith(control = control.clone(true)); 
}

但是，文件内容没有被清除..！

有人可以帮助我摆脱这个问题吗?

谢谢.. !!

But, the file contents are not getting cleared..!

can some one help me to get out of this problem?

Thank You..!

推荐答案

(" ).val(); 如果(值！= ' '){ document.forms [ 0 ].submit(); } }; 现在，将文件上传到服务器端后，使用 registerCLient脚本，如下所示， ScriptManager.RegisterClientScriptBlock(Me，Me.GetType()，" ， clearFile();"，True) 而且，这里 is clearFile()函数， 函数clearFile(){ var 控件=

("#File1").val(); if (value != '') { document.forms[0].submit(); } }; Now, After Uploading the file to the server side, im using registerCLient script Like below, ScriptManager.RegisterClientScriptBlock(Me, Me.GetType(), "Script", "clearFile();", True) And, Here is clearFile() Function, function clearFile() { var control =

(" )； control.replaceWith(control = control.clone( true )); }

("#File1"); control.replaceWith(control = control.clone(true)); }

但是，文件内容没有被清除..！

有人可以帮助我摆脱这个问题吗?

谢谢！！！

But, the file contents are not getting cleared..!

can some one help me to get out of this problem?

Thank You..!

<pre lang="c#">
var control =

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