Chapter 14 Customizing Templates of the ListView Control

rmanapul · May 21st, 2012, 03:59 AM

i am experiencing problems regarding this Try It Out Exercise on Chapter 14 "Customizing Templates of the ListView Control" when i run my web application it says

Code:

Could not find a part of the path 'C:\BegASPNET\Site\GigsPics\b01f17b6-90f3-4015-ba79-f5ea5443853d.JPG'.

i tried the source code downloaded with this book in folder "Chapter 14"
but it tells another error and the error message is this:

Code:

The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Picture_PhotoAlbum". The conflict occurred in database "C:\RALPH\9780470502211_VB_DOWNLOAD\SOURCE\CHAPTER 14\APP_DATA\PLANETWROX.MDF", table "dbo.PhotoAlbum", column 'Id'.
The statement has been terminated.

now im stuck and have nowhere to go. I have tried all the possible options and solutions that this forum provided like arranging the relationships of the diagram properly but when i looked at it, nothing's wrong and it is arranged the way it should be. same with the query string. there's nothing seems to be wrong. i checked it word by word, code by code, line by line. i am asking for assistance. thank you.

Imar · May 21st, 2012, 04:03 AM

Hi there,

With regards to the first error: did you create the GigPics folder inside your web site in VWD?

And for the second erro: the code from the book should run fine as is; the error message you're getting seems to suggest you're calling one of the pages with an incorrect ID in the querystring (or none). Did you mix your site / database with the source from the book?

Imar

rmanapul · May 21st, 2012, 04:16 AM

i did copy some files from the book source because the frontend master page does not work so i created another masterpage for ManagePhotoAlbum. i think i did mixed some in the markup part. but in the Code Behind Part, i mannually hand coded the codes. step by step just as the book says.

rmanapul · May 21st, 2012, 04:21 AM

got it, the source code from the book works fine you need to create an album first then upload the picture and it works. you're right the application is calling a "null" id. now the problem left is my own code.

Imar · May 21st, 2012, 04:24 AM

Quote:

you need to create an album first then upload the picture and it works

That's correct. When al album is created, it's stored in the database, and then its ID is forwarded to the next page. That ID is then used to associated the pictures in the album.

Maybe the query string parameters don't match? E.g. maybe you pass ID and retrtieve it as AlbumID in the next page?

Imar

rmanapul · May 21st, 2012, 04:28 AM

still no good sir, i get the same error even i created the album first and then upload pics. this problem is on my own application now and not on the book. it still says:

Quote:

Could not find a part of the path 'C:\BegASPNET\Site\GigsPics\88b54b92-2997-4dd9-bd02-b425465e24ea.jpg'.

Imar · May 21st, 2012, 04:32 AM

Quote:

With regards to the first error: did you create the GigPics folder inside your web site in VWD?

Does the GigPics folder, at C:\BegASPNET\Site\GigsPics, exist on disk?

If it does, can you post the code that saves the image?

Imar

rmanapul · May 21st, 2012, 04:42 AM

sir! a typo error, the folder "GigsPics" does not exist but i accidentally named it "GigPics" i changed "GigsPics" in the code with the name of the folder "GigPics" and its running perfectly. I noticed it too late. i will change the folders name properly later so that i will not messup with the upcoming Try It Out Exercises. thanks for entertaining. btw, you'r book is great. I didn't know LINQ, Entity Framework is not that hard to learn for beginners and the steps are easy to follow with clear explanations. I'll be waiting to buy for new books that you will be publishing in the future