Defer report execution until after parameters are chosen

The first time a parametrized reporting services report is called it is automatically executed 开发者_JAVA技巧with the default parameters which takes too long.

Is there a way to prevent the report from being executed until the "View Report" button is clicked when the correct and more restrictive parameters will be already chosen?

The report will not automatically execute if you set one or more parameters' default value to NULL. Given this, and the fact that you've stated your report takes too long to execute with your default values, I'd recommend omitting the default values for your parameters. Set the default values to null and let the user make their selections at run-time.