I have tried to create a window but it will not be displayed on a form. I tried to use that window in searching record from one table and display its child record from another table so that it will look like this
Column1 Column2 Column3
Record1 ... ChildRecord1
ChildRecord1
Record2 ... :
: ...
Recordn ...
Column1 Column2 Column3
Record1 ... ChildRecord1
ChildRecord1
Record2 ... :
: ...
Recordn ...