Have a look at the attached application. You can use the selection SelectInField Action to achieve your requirement.
When ever there is change on variable2 this action would excute. You can find this action mapped to the onchange even of the varaible in Document Property-->Trigger-->Variable Event Triggers-->oninput.
Your expresion for selecting the dates in list should be as ='>='&Date(Variable1)&'<='&Date(Variable2)
Check out the attched working application.
hope this helps you.
Exponentia;.qvw 149.5 K
I couldn't open the file you attached. Because I'm not using the licensed version of qlik view. I'm just using the free version provided in qlik view website.
Now I created a Button object and assigned the action as SelectInField and given the Field name as Date in field box and what should i write in Search String space to access the variables in Input box to provide the necessory selection.
I used the expression ='>='&Date(From Date)&'<='&Date(To Date) in search string space but no result i got. So i hope you could help me in this.
Thanks in advance.