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Issue with Uploading files in IE
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mohmedsadiq modan
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mohmedsadiq modan asked on 21 Jun 2012, 07:59 AM
Hello,

I have added Async file upload control in page and set display as none. like
<telerik:RadAsyncUpload ID="fuImport" runat="server" HttpHandlerUrl="~/CustomHandler.ashx"
         OnClientFileUploaded="onClientFileUploaded"  PersistConfiguration="true"
         MaxFileInputsCount="1"
         MultipleFileSelection="Disabled" OnClientFileSelected="CheckExtension"
         CssClass="jImport" OnClientAdded="onClientAdded" Style="display: none">
</telerik:RadAsyncUpload>
I have disabled embeded scripts in web.config
<add key="Telerik.EnableEmbeddedScripts" value="false"/>
for this I Have used custom handler HttpHandlerUrl="~/CustomHandler.ashx".

Now I have opened file dialog from menu client click(ImportData()  function ) instead of clicking on select button of file upload. Script are as below.
var $fileInput;
function onClientAdded(sender, args) {               
    if (sender.get_id() != undefined && sender.get_id() == 'fuImport') {                   
        //get file control instance from telerik upload control.
        $fileInput = $(".jImport").find(".ruFileInput");                   
 
    }
}
 
//check selected file is valid or not.
function CheckExtension(radUpload, eventArgs) {
    var input = eventArgs.get_fileInputField();               
    var fileExtension = input.value.substr(input.value.length - 3, 3);
    if (fileExtension != "xml") {
        alert(input.value + " does not have a valid extension.");
        radUpload.deleteFileInputAt(0);           
    }               
}
 
function ImportData()
{
    if ($fileInput != null) {
        //open dialog box for file selection.
        $fileInput.click();
    }  
}
function onClientFileUploaded(sender, args) {
    //check file is uploaded properly then perform import process.
    if (sender.getUploadedFiles().length > 0) {
        $(".jImport").css('display', 'none');
        $('.jImportButton').click();
    }
}
Now when we call ImportData function then file dialog is opened to select the file, after selecting file, upload process is not processing file for upload in IE, when I see this in IE Developer tool Network tab it's below url is executed multiple time
http://localhost/enigma/Telerik.RadUploadProgressHandler.ashx?AsyncProgress=true&RadUrid=3177d972-edfc-4992-aeee-1a1bbc50cdc50&_=1340265308915
RadUrid
changed in every request.

If I test same in FF and Chrome then it's worked perfect. Also If I set Display : block to file upload control and then upload files clicking on select button of file upload in IE then it's worked perfect.

Note : My site is hosted in Shared hosting server so I am not able to add handler in web.config.

Kindly Help me to resolve this issue.

Thanks in Advance.
Mohmedsadiq Modan

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Bozhidar
Telerik team
answered on 25 Jun 2012, 08:07 AM
Hi,

This is a known limitation of IE. You can read more about this in the following forum topic:
http://www.telerik.com/community/forums/aspnet-ajax/async-upload/select-file-while-click.aspx 
 
All the best,
Bozhidar
the Telerik team
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mohmedsadiq modan
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Bozhidar
Telerik team
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