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Populating a razor dropdownlist from a List in MVC
...he user will select along with a list of items that will appear in the DropDown.
ViewModel:
public class UserRoleViewModel
{
// Display Attribute will appear in the Html.LabelFor
[Display(Name = "User Role")]
public int SelectedUserRoleId { get; set; }
public IEnumerable<SelectL...
Is there a print_r or var_dump equivalent in Ruby / Ruby on Rails?
....inspect method of any object should format is correctly for display, just do..
<%= theobject.inspect %>
The .methods method may also be of use:
<%= theobject.methods.inspect %>
It may help to put that in <pre> tags, depending on the data
...
How can I increment a date by one day in Java?
...
Something like this should do the trick:
String dt = "2008-01-01"; // Start date
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar c = Calendar.getInstance();
c.setTime(sdf.parse(dt));
c.add(Calendar.DATE, 1); // number of days to ...
Why is inserting in the middle of a linked list O(1)?
...in the size of the existing list, not the number of insertions you plan to do there.
– Has QUIT--Anony-Mousse
Jun 21 '13 at 20:54
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When is it better to use String.Format vs string concatenation?
...honest it'll be minimal if present at all - and this concatenation version doesn't need to parse the format string.
Format strings are great for purposes of localisation etc, but in a case like this concatenation is simpler and works just as well.
With C# 6
String interpolation makes a lot of thi...
Mutable vs immutable objects
...ou should be able to look at a piece of code and easily understand what it does. But more important than that, you should be able to convince yourself that it does what it does correctly. When objects can change independently across different code "domains", it sometimes becomes difficult to keep ...
How to check the extension of a filename in a bash script?
... to that end, you can rename command.com to command.txt on a windows machine too.
– hometoast
Jun 9 '09 at 18:10
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Read the package name of an Android APK
...om within Android code? I want to be able to launch a package of an apk I download through my app.
– Matt Wear
Jun 19 '12 at 15:59
7
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Java Can't connect to X11 window server using 'localhost:10.0' as the value of the DISPLAY variable
... helped me (with export DISPLAY=:0 I got the error Can't connect to X11 window server using ':0'
– beluchin
Dec 11 '15 at 15:41
2
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What is the purpose of `text=auto` in `.gitattributes` file?
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From the docs:
Each line in .gitattributes (or .git/info/attributes) file is of form:
pattern attr1 attr2 ...
So here, the pattern is *, which means all files, and the attribute is text=auto.
What does text=auto do? From the...