It's a good practice to show orange border when you set focus to textbox.
also the border will stay for some seconds.this way user know
that they have to do task on that textbox.

if you want to use nice jquery slider in your asp.net website
follow the steps below -

the following codes will help you to implement check all
or uncheck all capability in the gridview.in that case
when header check box checked all items check box will
be checked and vice versa.

you can easily add dynamic column in GridView control
with data.there are many dynamic fields you can add
like hyperlink field,bound field,etc.

Virtuemart 2 for joomla is a very good extension to sell products
through website.To add product manually by code, they have doc on
how to use the Api to achieve this, but it may be hard to implement
there Api to add product.So i show here how to do that without using
Api but the simpla way using sql queries -

You can show wall posts of any public facebook page/group/profile
using Graph api in your website if you know javascript & jquery.

Asp.net makes it easy to export tabular data to excel file.It's
easier to use GridView control data to export to excel.the following
codes shows how u can achieve this along with some header info at the
top of the data rows in excel -