TreeTable Drag & Drop in IE9

Hello everybody :slight_smile:
I experience strange drag & drop behavior in the TreeTable component in Vaadin 6.8.5. When I perform drag & drop in IE9, the client code makes 2 requests to the server, one for the drag&drop and one for some strange and definitely unwanted click event:


Variable burst to be sent to server:
	DD: Warning: no corresponding paintable!
		visitId (i) : 1
		eventId (i) : 12
		dhowner (p) : PID238
		component (p) : PID238
		type (i) : 3
		evt (m) : sitemIdOver 184 sdetail BOTTOM smouseEvent 1,1082,204,false,false,false,false,8,-1,-1
		tra (m) : sitemId 194 spropertyId 1
Making UIDL Request with params: ec7948e2-83c7-4c71-a7f4-91810d87655a 1¬DD¬visitId¬i 12¬DD¬eventId-i PID238¬DD¬dhowner¬p PID238¬DD¬component¬p 3¬DD¬type-i sitemIdOver 184 sdetail BOTTOM smouseEvent 1,1082,204,false,false,false,false,8,-1,-1¬DD¬evt-m sitemId 194 spropertyId 1¬DD¬tra¬m
Server visit took 94ms
JSON parsing took 1ms
-Response:
+change
+change
 Processing time was 134ms for 7726 characters of JSON
Referenced paintables: 107
Variable burst to be sent to server:
	PID238 (class com.vaadin.terminal.gwt.client.ui.VTreeTable) :
		clickedKey (s) : 184
		clickedColKey (s) : 1
		clickEvent (s) : 1,1082,204,false,false,false,false,8,-1,-1
		clearSelections (b) : true
		selectedRanges (c) : 
		selected (c) : 184 
Making UIDL Request with params: ec7948e2-83c7-4c71-a7f4-91810d87655a 184¬PID238¬clickedKey¬s 1-PID238¬clickedColKey¬s 1,1082,204,false,false,false,false,8,-1,-1¬PID238¬clickEvent¬s true¬PID238-clearSelections¬b ¬PID238¬selectedRanges¬c 184 ¬PID238¬selected¬c
Server visit took 29ms
JSON parsing took 0ms
-Response:
+change
 Processing time was 12ms for 995 characters of JSON
Referenced paintables: 105

In all other browsers that I tested (including Firefox, Chrome and even IE9 in IE8 mode) the request is only one, here is what I get in the console:


Variable burst to be sent to server:
DD: Warning: no corresponding paintable!
visitId (i) : 1
eventId (i) : 23
dhowner (p) : PID145
component (p) : PID145
type (i) : 3
evt (m) : sitemIdOver103sdetailBOTTOMsmouseEvent1,535,204,false,false,false,false,8,-1,-1
tra (m) : sitemId113spropertyId1
Making UIDL Request with params: 86c182a3-e16e-40bd-a2f4-c07727f7a8391DDvisitIdi23DDeventIdiPID145DDdhownerpPID145DDcomponentp3DDtypeisitemIdOver103sdetailBOTTOMsmouseEvent1,535,204,false,false,false,false,8,-1,-1DDevtmsitemId113spropertyId1DDtram
Server visit took 61ms
JSON parsing took 0ms
-Response:
+change
+change
Processing time was 148ms for 7724 characters of JSON
Referenced paintables: 107

Does anyone faced this before?

Regards,
Blagovest