:show in v-for cant change

[davodaslanifakor]

hi
lock i want change :show="item.show"
but don't work
this is my method

popshow(item,index){
            	this.Comments[index].popshow
   }

Comments this is my object

and has a key[popshow] = false

this is god work when i give console but don't happen ...

so this is my template cod

<vodal :show="item.popshow" ....

how solve this problem...

[davodaslanifakor]

i solve this problem
i want use vuejsCaveats