implementing video in asp.net or php pages is a great thing!.
there are a lot of players are available in web to show
video free.

It's a good idea to identify the errors at run time to detect
and handle it. .Net framework has built in mechanism for that.
these exceptions occurs because of user,logic and system errors.

jquery dialog is not only best for showing only content but
also can be used to show form,buttons for postback.......
but for this jquery dialog must be appended to form as -

following way a DataTable with data can be used to
populate gridview control in asp.net.following codes get files list
from a file path and adds in DataTable then sets that
DataTable as a DataSource of the GridView grdDirList.

From many years software makers or developers
facing problems on how to make data to both
outside and inside of the system maintaining
security

in php there is a command which is used
to redirect to a page from a page.the following
codes shows hot to achieve this.