checkbox.value for a query

I have a datagrid on page1 with checkboxes next to each record item. When submitted to page2 I want to loop through each of the "checked" checkboxes and use each checkbox.value for a query.

 So if you check item 1, 5, 6 and 11 for example then click the submit button I can select only the selected records from the database matching those checked ID's.

I was thinking of using the "For Each" command but I am not sure how to use it.

Any suggestions on how to accomplish this is greatly appriciated
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