Interesting questions
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answer170
viewsCheck certificate X509certificate2
Is there any way I can verify that the A3 certificate is connected to the computer? Some kind of validation for example. I work with an application that makes use of A3 certificate, but I do not do…
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6
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answers4450
viewsHow to use openssl_encrypt encryption method?
It’s been a week that I search in everything that is site but I can not understand, I’m very curious about the use of this function but I can not find anything that explains in a simple way, someone…
phpasked 10 years, 2 months ago Otavio Fagundes 978 -
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votes2
answers81
views'javax.persistence.Rollbackexception' received when invoking action listening '#{}
I inform the values on the page, but the values are not persisted in the bank. It’s like my page doesn’t send the values to the controller classes. If the values are reported however, the error is…
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answer33
viewsIs it possible to count word order in a field via Mysql?
good afternoon! I’m not an expert in mysql - so doubt - q might even be silly. I have a field in a database where a color preference list is stored. Ex: Joao prefere: Azul, Verde, Vermelho. Maria…
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answers604
viewsRecyclerview, problem inserting an item
Talk guys, I’m new on android, I have a problem here, I’m trying to insert items in a Recyclerview, when I use the direct method on the button it is inserting statically good: public void…
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answer327
viewsUpdate json field with select in the same Postgresql table
I have a table where I have to take data from a record and update it in a column from another record of the same table. These fields are like json. I was able to get the data to be entered but I’m…
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answers15
viewsWarning message when leaving the page without saving
I have this code that shows a warning as soon as the user changes screen, but I need it to appear only if the user makes any changes to textarea. What I’ve done so far.…
javascriptasked 5 years, 1 month ago Gabriel Pescuma 1 -
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answer63
viewsHide Android/Kotlin Keyboard
I have a EditText I need you to stay focused, but do not open the keyboard at any time, as it will receive a reading from a Qrcode. You can do it? I’ve tried that:…
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answer159
viewsReferencing elements with CSS to reposition them
I have to change a code base responsible for generating PDF reports using the tool Jinja2. To do so, I need to change HTML and CSS documents. For the former, my concern is with the naming convention…
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answers1348
viewsAngular: CORS error when making http GET request
I need to receive a list of questions from my API and store in an Array in my angular component, I’ve done it several times in other projects and it always worked out that way, only this time there…
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answers90
viewsBootstrap Responsive Wordpress
Good night, you guys. I recently finished this blog: http://bloganacastro.com/ and everything is cool, in the mobile version I just have a little problem. If you visit, you can see that the main…
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answer98
viewsGenerating an xlsx file from a Gridview that is powered by a Database
Good afternoon, I am facing a problem when it comes to generating an Excel file, I was able to make the information appear in Excel and be shown on the screen, but found me with doubt when I try to…
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answers176
viewsHow important is it to use friendly URL?
For example: meusite.com.br/posts/isto-e-um-slug-de-um-post instead of meusite.com.br/posts/295837 In the first case the URL is much more friendly, but there is a cost of time to develop and…
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answer344
viewsWhat is the difference between Collation UNICODE_CI_AI, UNICODE_CI and UNICODE
There is a difference between UNICODE_CI_AI, UNICODE_CI and UNICODE? What they are and what they interfere with in the database?
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answers36
viewsUsing Nlog with Postgresql C#
I am working on an application, and have some log screens, and I want to add a log routine in the API of these records, type: do not add, update and error occurrences (if any). The database that is…
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answers227
viewsMaking Mysql UPDATE in DB database according to Mysql SELECT in DB2 database
I need to update a field (office) of a table (investor) of the database (B2c) on my website. However, this UPDATE will depend on a SELECT query that is made in another database of another site (both…
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answer67
viewsPython - Mongo Engine Error: Tried to save Duplicate Keys (Duplicate Key Error)
Python I am trying to save more than one user in Json but it does not accept the introduction of more than one, always gives the: Tried to save Duplicate Unique Keys (Duplicate Key Error) here is…
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answers848
viewsWhat should be the communication between Model and View using MVC?
I’m trying to implement some small projects using the MVC standard: Within the project structure, I created the following packages: View : User Interaction Screens. Controller: I have a class with…
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answer159
viewserror running kivy designer, No module named 'designer'?
How to resolve this error in kivy designer ? [! [insert image description here][2][2]…
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answers364
viewsDatatable of the first faces does not update selection variable
Based on the first example of the site Datatable Selection where a variable(linhaSelec) receives the value selected by clicking on a <p:commandButton/> I decided to mount my implementation but…