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Remove Files for Upload with Errors

Environment

Product Progress Kendo UI Upload for jQuery
Operating System Windows 10 64bit
Visual Studio version Visual Studio 2017
Preferred Language JavaScript

Description

How can I remove files from the Kendo UI Upload when file validation fails?

Solution

The following example demonstrates how to remove files from the Kendo UI Upload when the upload/remove data operation fails due to errors or failing validation.

<style>
  html {
    font-size: 12px;
    font-family: Arial, Helvetica, sans-serif;
  }
</style>
<input name="files" id="files" type="file" />
<script>
  function onError(e) {
    var files = e.files;
    for (var i = 0; i < files.length; i++) {
      alert("Validation failed for " + files[i].name);

      var uid = files[i].uid;
      var entry = $(".k-file[data-uid='" + uid + "']");
      if (entry.length > 0) {
        entry.remove();
      }
    }
  }

  $(document).ready(function() {
    $("#files").kendoUpload({
      async: {
        saveUrl: "save",
        removeUrl: "remove",
        autoUpload: true
      },
      error: onError
    });
  });
</script>

See Also

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