Stopping repeated transactions on ASP.NET button

[arc]

I have a button that commits a transaction on click.
Considering it takes about 4 secs for a transaction, it allows to be clicked
several times (will not work if button is just disabled on commit) during
this period and then collects all these clicks as several transactions with
same data. How can i stop this from taking any transactions further while
the first processing is on?

Thanks
Arc

 

[Marina]

You would have to disable the button on the client right after the first
click.