Passing Dates To A Procedure

im throwing up some errors

Syntax error converting datetime from character string.

im sending 2 asp:Text fields to the procedure

in the format dd/mm/yyyy

i.e. 06/03/2006

the table im inserting it into is set to datetime

within the procedure i have tried both
@Date1 DateTime,
@Date2 DateTime

@Date1 Nvarchar(50),
@Date2 Nvarchar(50)

and it still throws up Syntax error converting datetime from character string.

now im not sure if i should pass it to the Procedure as Nvarchar then Convert it within the procedure ..

or change the table type to nvarchar and just insert into a non date format table type.