Ok, I found my mistake
The problem was on the rowspan.
I changed the rowspan’s value from 4 to 5 (3 cells + 2 separators). And it works
it is not as complicated as I thought
Correct code :
<layout>
<autosize hor="a;d;e" ver="c;d;e" rows="3" cols="3"/>
<table data="a,d,e;b,d,e;c,d,e"/>
<row>
<cell obj="a" wh="3,3" resize="ver" neighbors="a;b;c"/>
<cell sep="ver" left="a,b,c" right="d;e" dblclick="c" rowspan="5"/>
<cell obj="d" wh="3,1" resize="hor" neighbors="a,b,c;d;e" rowspan="5"/>
<cell sep="ver" left="a,b,c;d" right="e" dblclick="d" rowspan="5"/>
<cell obj="e" wh="3,1" resize="hor" neighbors="a,b,c;d;e" rowspan="5"/>
</row>
<row sep="yes">
<cell sep="hor" top="a" bottom="b;c" dblclick="a"/>
</row>
<row>
<cell obj="b" wh="1,3" resize="ver" neighbors="a;b;c"/>
</row>
<row sep="yes">
<cell sep="hor" top="a;b" bottom="c" dblclick="b"/>
</row>
<row>
<cell obj="c" wh="1,3" resize="ver" neighbors="a;b;c"/>
</row>
</layout>
JS pattern :
/* Custom Pattern : 5Z */
dhtmlXLayoutObject.prototype.tplData["5Z"]='<layout><autosize hor="a;d;e" ver="c;d;e" rows="3" cols="3"/><table data="a,d,e;b,d,e;c,d,e"/><row><cell obj="a" wh="3,3" resize="ver" neighbors="a;b;c"/><cell sep="ver" left="a,b,c" right="d;e" dblclick="c" rowspan="5"/><cell obj="d" wh="3,1" resize="hor" neighbors="a,b,c;d;e" rowspan="5"/><cell sep="ver" left="a,b,c;d" right="e" dblclick="d" rowspan="5"/><cell obj="e" wh="3,1" resize="hor" neighbors="a,b,c;d;e" rowspan="5"/></row><row sep="yes"><cell sep="hor" top="a" bottom="b;c" dblclick="a"/></row><row><cell obj="b" wh="1,3" resize="ver" neighbors="a;b;c"/></row><row sep="yes"><cell sep="hor" top="a;b" bottom="c" dblclick="b"/></row><row><cell obj="c" wh="1,3" resize="ver" neighbors="a;b;c"/></row></layout>';
dhtmlXLayoutObject.prototype._availAutoSize["5Z_hor"]=["a;b;c","d","e"];dhtmlXLayoutObject.prototype._availAutoSize["5Z_ver"]=["a;d;e","b;d;e","c;d;e"];
//v.3.5 build 120822
/*
Copyright DHTMLX LTD. http://www.dhtmlx.com
You allowed to use this component or parts of it under GPL terms
To use it on other terms or get Professional edition of the component please contact us at sales@dhtmlx.com
*/
Hope it will help someone
Bye !
ZuG’