Questions tagged as 'asp.net'

Tagged questions
3
answers

DataAnnotations problem in string [] fields

I need an help to validate a string[] field, since whenever I send this empty field, it returns error, even though it is in the correct format: The field is this: [RegularExpression(@"^(([A-Za-z0-9]+_+)|([A-Za-z0-9]+\-+)|([A-Za-z...
asked by 19.09.2018 / 21:19
1
answer

How to check if an email exists?

I would like to know how to check if an email exists / is real. I'm doing a site (in ASP.NET), which for the person to do "register", has to enter an email and a password. But how do I check if the email is real? I know I could check if you have...
asked by 23.08.2017 / 15:05
1
answer

How to display dynamic images from a ListView?

I created a div with a ListView where CheckBox and a Image in> Page_Load . I need to click on one of the CheckBox by selecting from the image, it will be created dynamically in another Div , and at most the user can select 4 images...
asked by 27.10.2015 / 13:21
1
answer

How to publish a web server on my host

I've done a web service following some tutorials, it worked correctly, but when I go to my uol hosting, I can not do it at all (I get Page Not Found!) I have no experience with this kind of thing, I need someone to guide me step-by-step. I fo...
asked by 04.06.2018 / 15:07
1
answer

Possibility to use MAX in fields DateTime expression Lambda

There is the possibility of using MAX in expression queries lambdas , for example: I would like to get all the records at the age of 18 and get the only last record inserted in the database, that is, with the longest registration...
asked by 06.04.2018 / 16:04
1
answer

Is there any way to slow down or streamline this VIEW? MSSQL, own software using ASP.NET [closed]

AS WITH Grupos AS(SELECT contato.IDContato, contato_Grupos.IDGrupo, contato_Grupos.IDContato AS IDContexto FROM contato, contato_Grupos WHERE (contato_Grupos.IDGrupo = contato.IDContato)), Membros AS (SELECT contato.IDContato, contato_Grupos.ID...
asked by 05.09.2016 / 16:36
1
answer

Replace the text of a textbox when the user makes a new input in the same textbox

I have a textbox where, through another page I give you an email. txtemail.text = "[email protected]" And when my page does load , in that textbox it appears: [email protected] . But if I try to make a new input...
asked by 27.09.2018 / 16:44
1
answer

Return the same URL and change the aspx Label asp.net

I am doing a validation on a sales system, where if the seller clicks on a customer that is in debit access is not allowed. So far without problems, I made the connection with DB and validation. I would like that when this scenario happened...
asked by 31.03.2014 / 15:02
1
answer

What Dlls Do I need to create a project with oracle in visual studio 2015?

Hello everyone, how are you? I am currently trying to create a new project in visual studio 2015 with the new version of oracle RC1 update 2 I would like to know which devart Dlls I need to configure my project to create connection to the bank a...
asked by 03.05.2016 / 02:09
1
answer

How to use or add aspx pages in an Asp.Net MVC project

Can you use or add to my project that is in Asp.net MVC a page that is ready in webforms (aspx and cs)? If yes how do I add the page?     
asked by 10.09.2015 / 22:17