Got a form view setup.  Each item in the InsertTemplate is bond to a field in the table. My problem is how to pre-populate the textbox.  For example, I have a textbox for Date value and I want that populated whenever user comes to that page and then when user click on save the Date value will be written to the database.

What value do you want to pre-populate it with? Today's date?  What format?  Will the user be able to change this date?

If the date value will always be the current date, then don't provide a textbox.  Just insert GetDate() if you are using SQL Server, or Date() for Access. 

Otherwise you will need to use FindControl to access the textbox:

Dim myTextbox As TextBox = CType(FormView1.FindControl("TextBox1"), TextBox)
myTextbox.Text = myDateValue

TextBox myTextBox = (TextBox)FormView1.FindControl("TextBox1");
myTextbox.Text = myDateValue;

Hello

one other approach is to provide a Calendar control to accept date input

on this page are several examples of the above concept. while the examples use a DetailsView,  they will work just the same with a FormView