Seems we can’t disable the save button of the SaveFileDialog control. There is no expose property and event to implement this function. And the SaveFileDialog class is sealed, we can’t derive from SaveFileDialog.
Base on my understanding, you don’t want the user save anything. Where have you trigger the save function? In the Web page or on the winform? If on the form, do you use a button to show the saveFileDialog box to save files? If so, you can disable the button to avoid the user to save something. If in the web page, you’d better change the function in the web page.
Best regards,
Ling Wang
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