How to force a load of one control from another control on another form?

[et]

I have 2 forms, frm1, frm2. They each have a user control on them, uc1,
uc2. When a drop down list on frm1.uc1 is changed, I want frm2.uc2 to be
reloaded with new data? How can I do that?

 

[Yunus Emre ALPÖZEN [MCSD.NET]]

how do u show two forms? Are u using frames? how many aspx pages do u have?
You can use enable viewstate for the form which will not change and use
databind for newly changed form...