Found a bug on onImageUploadSuccess

Product Name: dhtmlxSuite
Version: 5.0
Edition: Standard

myForm.attachEvent("onImageUploadSuccess", function(name, value, extra){ // your code here });

When trying to upload image file in form I was not able to get file name, everytime it return value was undefined.

Found that there was a variable name mispelled on

e.getForm().callEvent(“onImageUploadSuccess”,[c.itemId,c.itemValue,c.extra])

itemValue was spelled like itemVaule

Yep, thanks for reporting the issue
Fix will be included in the next build.