Solved

ASP.Net - Help translating code in Pade_Load event

Posted on 2013-05-22
5
398 Views
Last Modified: 2013-05-22
Good Day Experts!

I am back on my journey to learning ASP.Net.  Currently, I am a VB.Net programmer.
I have attached a text file with code that is in the Page_Load event for the Login.aspx of the website.  

Can you help and translate what is happening in the code?  Also, "If Not Page.IsPostBack Then"...will it ever be Page.IsPostBack and not run the code? Also, "If Not Request.Cookies("myCookie") Is Nothing Then"...will the cookies ever not be nohting?

Thanks,
jimbo99999
0
Comment
Question by:Jimbo99999
  • 3
  • 2
5 Comments
 
LVL 75

Expert Comment

by:käµfm³d 👽
ID: 39187932
I have attached a text file with code...
What file?  : )

Then"...will it ever be Page.IsPostBack and not run the code?
Yes. The first time a page is requested is not a post back. Clicking a button or interacting with some other control on the page (typically) triggers a post back.

Also, "If Not Request.Cookies("myCookie") Is Nothing Then"...will the cookies ever not be nohting?
Sure.
0
 

Author Comment

by:Jimbo99999
ID: 39187951
0
 
LVL 75

Accepted Solution

by:
käµfm³d   👽 earned 500 total points
ID: 39187979
"If Not Page.IsPostBack" is checking as to whether or not the page is being initially requested (e.g. a user types the URL into the browser's address bar). If this is the initial request of the page, then the session is cleared (just in case an existing session is still in memory, I presume). Then you are checking to see if the browser sent a cookie named "myCookie". If it did, then you extract the cookie from the request object. From this cookie you are extracting the values of the "ITSusername", "ITSP", "AMARKN" (commented out), and "ITSR" fields, and using them to set up the states of various controls (e.g. text boxes and check boxes). Finally, you are checking a code-behind field named "ModError" for any text. If it has text, then its text is placed into a label on the page.
0
 

Author Comment

by:Jimbo99999
ID: 39188126
Excellent, thanks for the explanation.  My next step of working through the code I put a breakpoint on the first line behind the login button.  After entering my username and password and I click the Login button...to my surprise the first line of code that is executed is in the Page_Load event of the Login.aspx!  So, once I am in the website I hit the Logout button and same thing...to my surprise the first line of code that is executed is in the Page_Load event of the Login.aspx!  I can't figure out why it happens and where in the code it tells it to go back to the Page_Load event of the Login.aspx page.

Do you have any thoughts that might help me understand?

Thanks,
jimbo99999
0
 

Author Closing Comment

by:Jimbo99999
ID: 39188283
Excellent...thanks for the help.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

It’s quite interesting for me as I worked with Excel using vb.net for some time. Here are some topics which I know want to share with others whom this might help. First of all if you are working with Excel then you need to Download the Following …
The ECB site provides FX rates for major currencies since its inception in 1999 in the form of an XML feed. The files have the following format (reducted for brevity) (CODE) There are three files available HERE (http://www.ecb.europa.eu/stats/exch…
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question