从表中显示网站行

I have created a local database in Visual Studio 2010 and a web application which interacts with it. I want to create a search function in order to obtain some rows from a table. I have a text field where i write a date (delivery date for a product, for example) and a button. On clicking the button, i want to bring on my web page information about an invoice. Please, check out my code:I have created a local database in Visual Studi