Set focus to another form

Question

I have two forms. One is for enter data and other is to show that data in the gridview. Scenario is that when I press save button of one form which is for to enter data in table then it get saved into table and form get closed and that data is get binded to the gridview control of other form which only shows that data.  When button save is pressed I want to show the form i.e. form on which gridview is present to show data and the form which is for enter data is should be get closed. How can I do that?

plz help.