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ImageUploader.UploadThumbnailResizeQuality Property

Supported in: ActiveX , Java

Resize quality of thumbnails.


Get/Set Value in Runtime

getImageUploader("ImageUploaderID").setUploadThumbnailResizeQuality(Index, value);
value = getImageUploader("ImageUploaderID").getUploadThumbnailResizeQuality(Index);



A positive integer that specifies an index of the upload thumbnail (one-based). It should not exceed UploadThumbnailCount. If extra upload thumbnails are required, use the UploadThumbnailAdd() method to add them.

Property Value

A member of this enumeration that specifies the resize quality of the thumbnails:

String valueAlternative string valueInteger valueDescription
ResizeQualityMediumMedium0 Default quality.
ResizeQualityHighHigh1 High quality. When using this mode in ActiveX version, thumbnails are created in two steps. On the first step the thumbnail is created twice as large as required. On the second step the thumbnail is downsized using the Bell filter.

When you get this property value through the JavaScript, integer value will be returned (even if you initialize the property with a string value).


Image Uploader can generate multiple thumbnails per one file sent to the server. To configure sizes of thumbnails and other parameters, you can manipulate a list of upload thumbnail settings. It can be done two ways:

  1. Use UploadThumbnailNXXX parameters, where N is a number in range from 1 to 3.
  2. Use the UploadThumbnailAdd() method in JavaScript to add extra thumbnail sizes, and UploadThumbnailXXX properties to change specific settings.

First method is simpler, however it allows to upload not more than 3 thumbnails per one file. The second one does not have any limitation on the number of thumbnails.

To get an upload thumbnail on the server use the UploadThumbnailX HTTP POST field, where X is an index of the upload thumbnail.


The index of upload thumbnail list is one-based.

See Also