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Jquery File Upload Validate existing filename

February 17Hits:6
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I am using JQuery File Upload Validation. This has been enabled with the drop feature. I want to validate each file name to check whether the file already exists before uploading it.

I an unable to do it in the add(e,data){} event.

add: function (e, data) {      debugger; alert("add");     var fileName = data.files[0].name;     if (IsFileNameInUse(GetCurrentWorkingDirFolderId(), fileName)) {         if (confirm("Do you wish to overwrite the existing file [" + fileName + "]")) {              debugger; return true;         } else {             return false;         }     }      return true; }, 

Any link or suggestion?

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