How to hide the link when no data exists

I have created a new page in inventory module here.I have developed a search page like if i query through organization all the items related to that are displayed in results table.I have introduced one more dummy colums called details with image and in property for that details i have implemented drill down details.
When i click that details link i will go to next page to display lot details for the item.
Here there are lot details for some items and some items dont have lot details.SWo the details button must be enabled for the items which have lot details only and for other it must be in disable state.
Can any one tell me how to disable for the items which dont have lot details and enable for the it3ems which has lot details.
Right now it is in enable state for all the items it was going to next page.
I nedd to go to next p[age only if i have the related information for that item.
How to do this type of scenario

Please do not re-post. It would be easier to follow up a single thread.

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