Monday, March 9, 2009


GWT-EXT-UX give extra widget for development. It provides cool widget such as UploadDialog. Due to lack of documentation of GWT-EXY-UX, and you are not familiar with GWT, you may encount null error when doing, ie

UploadDialog dialog = new UploadDialog("Upload a file");

Gives error

'$wnd.Ext.ux.UploadDialog.Dialog' is null or not an object

To fix this, give a try with the following

Also, visit the following

Hopefully, these tips helsp

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