You have to create an instance of the page you are trying to reference. Then you can call the method on the page.

>This is the complete message:
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>Here is the situation I need help with:
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>1. I have a HTML Page that has frames and each frame contains an ASPX page, all of the individual pages have been given names in the frameset
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>2. I have and asp Drop Down list in one page that when changed I want to call a method that is in one of the other pages. The the page where the dropdown is called "Header" and the page where the method is located is called "Main" I am trying to call the method on Main from the drop down list's SelectedIndexChanged event.
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>3. When a value is chosen from the DropDown, I am changing values in Session which can be retrieved from the Main page's methods. This is working fine since I can push a button on the Main page that executes the method and the changed values from the dropdown list change. I want this to happen without the user having to push a button.
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>I imagine there is a relatively straightforward way of doing this.
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>Thanks in advance to anyone who can help me with this.
>Dan