How to get the selected file fron html control using c#.net and store it in the database?

I have created a browse icon using html control in asp.net. I want to get the selected file and store it in the database. How to get it? i am working in web application.How to get the selected file fron html control using c#.net and store it in the database?
Here's a sample:

http://www.4guysfromrolla.com/webtech/09鈥?/a>

Also, consider the field type VarBinary in your table.