Load/bind Gridview based on default calendar date when page loads

I have a page that has a calendar and gridview (one next to each other)
When the page loads, the calandar shows the current date highlighted, and the gridview i wanted to automatically show based on that date.
Currently, when you select a date, the gridview shows up and either displays records for that date or shows the empty template layout.
But currently the gridview wont show anything on page load unless i make a different date selection and then select the current date again.
What event should i have the logic in order to display records on page load?
I have already tried the following events: (what am i missing)
Page_Load
Calendar2_Load
Calendar2_DataBinding