Vessy, thanks for your reply. It seems that both of my issues might have been related. I implemented the solution found here
that you pointed me too. For anyone else reading this it's important to also read this
post that explains how you need to put your custom code into a new control instead of directly in the FileBrowser.ascx control. I spent about 30 minutes trying to get the later to work unsuccessfully. Once i found the post about using the new user control, that worked perfectly. I made some minor adjustments to
protected void radFileExplorer1_Load(object sender, EventArgs e)
my method looks like this:
sender, EventArgs e)
which seems like it will give me the best of both worlds. Local images will work the same way they work before, and external images won't try to "auto load" and give me the alert prompt.
After i implemented this update i was unable to replicate my 2nd issue. I had no problems selecting an image from my library and replacing the external image.
Thanks for your help!