I have a customer page which contains a button to add a new address. When this button is clicked on, I open a modal window which has a user control. The contents of the user control is listed below. The user control has a drop down meu to list the countries. If the user selects United States I show drop down list of all the states, otherwise if they select any other country then I show a text box for them to type in their region/province. I do this by setting the autopostback=true on the countryDropDownList and I call the onselectedindexchanged="countryDropDownList_SelectedIndexChanged". I have the user control inside an update panel and it works fine until I put it in my modal window. Once it pops up in a model window and the user selects country the page refreshes and the model window disappears. I have tried putting update panels all over the place and I have no luck. Any help would be appreciated.
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