Then what I think is that you don't want a page load, since you want to pass a parameter to it, it that case why do you create a method on your form and on the page load call that method and on the button click event call the same method passing the param you want.
looks like a more intuitive design and easy to read and maintain.

>What is the command to put into the OnClick method of a button that will reload the page but not post it back. And at the same time I would like to "pass" a parameter to the server so that when the page is loaded I can use this parameter in the Page_Load method?
>
>Thank you in advance for your help.