All Questions

2
answers

I can not close a pop-up

The following code belongs to a pop-up that I am trying to close with javascript but it does not work for me and it does not give me any errors either. <div id="popup-box-outer"> <div id="popup-box"> <h1><img src="...
asked on 20.04.2016 / 20:33
1
answer

Avoid duplicating data when entering a new user

I have a database connection to access and visual% excel How can I make the code for the query that allows me to send a msgbox that tells me if the user is already registered? I know that recordset is occupied The...
asked on 21.04.2016 / 22:29
1
answer

EditText with error message on Android

In the Google Material Design Design Guide , to show an error message when a field is incorrectly filled in, an error message is used below the component, I wonder how that text is established and what method it launches for its appearance, ho...
asked on 18.04.2016 / 16:00
1
answer

How to get the value of an Html.DropDownList to pass its value as a parameter to a partial view in MVC asp.net

I have the following dropdownlist, which shows the values 5,10 and 15: <% Dim listItems = New List(Of ListItem) From { _ New ListItem() With { _ .Text = "5", _ .Value = 5 _ }, _ New ListIt...
asked on 15.05.2016 / 00:47
1
answer

Android: Internal storage available

In order to execute a process that generates many files, I must ensure that I have the storage space available, based on estimates and calculations that give me an approximate figure of the space I must have to execute the process. Eventually...
asked on 22.04.2016 / 23:28
1
answer

Can I share a Python program (3.x) with someone who does not have it installed?

My first language was c and as you can imagine the differences with python-3.x They are remarkable. Python is object oriented and an important difference for a novice in Python as its server is that while C is compiled, Python is interpreted...
asked on 15.04.2016 / 23:36
1
answer

list files / files on android

I would like to be able to open the files in a ListView of an activity  that contains my application. These files are being saved in another activity, and always with the same extension ( .prop for making it unique). What I do n...
asked on 15.04.2016 / 09:28
1
answer

unsupported operand type (s) for +: 'NoneType' and 'NoneType'

I am trying to save elements that I parsed from a csv file in the database and at the time of splitting those elements I get an error unsupported operand type (s) for +: 'NoneType' and 'NoneType'and I do not know what do. def Procesar(request,...
asked on 25.04.2016 / 18:01
1
answer

Creation of a class in Django that has a key to itself

I'm getting into the world of Django and I was trying to generate different types of models. Now I am creating a model with a class 'Tags' which has a key that calls another object of the class (To create objects linked by relationship)....
asked on 25.04.2016 / 08:59
3
answers

Make invisible controls in JavaFX

Is there any way to hide controls in javaFX so that they do not take up space? I have seen that in android it is possible: control.setVisibility(View.GONE); What comes to mind is this: control.setVisible(false); control.setMinSize(0,0);...
asked on 15.04.2016 / 13:16