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Html.DropdownListFor selected value not being set
...=> n.OrderTemplates, new SelectList(Model.OrderTemplates, "OrderTemplateId", "OrderTemplateName", 1), "Please select an order template")
When using DropDownListFor, the first parameter is the property where your selected value is stored once you submit the form. So, in your case, you should ha...
Using Razor within JavaScript
...ription', map);
}
</script>
Updated the above code to make the call to addMarker more correct.
To clarify, the @: forces Razor back into text mode, even though addMarker call looks a lot like C# code. Razor then picks up the @item.Property syntax to say that it should directly output th...
Difference between Bridge pattern and Adapter pattern
...o this. Note that there's a grey area and this is more about how you technically define the pattern, since other patterns like the facade are similar.
http://en.wikipedia.org/wiki/Bridge_pattern
The Bridge pattern is going to allow you to possibly have alternative implementations of an algorithm o...
C dynamically growing array
...lements
for (i = 0; i < 100; i++)
insertArray(&a, i); // automatically resizes as necessary
printf("%d\n", a.array[9]); // print 10th element
printf("%d\n", a.used); // print number of elements
freeArray(&a);
...
Does the default constructor initialize built-in types?
...invokes default constructor. In reality though, the syntax C() performs so called value-initialization of the class instance. It will only invoke the default constructor if it is user-declared. (That's in C++03. In C++98 - only if the class is non-POD). If the class has no user-declared constructor...
How to get ALL child controls of a Windows Forms form of a specific type (Button/Textbox)?
...ecursion:
In this example, you first create the list of controls and then call a method to populate it. Since the method is recursive, it doesn't return the list, it just updates it.
List<Control> ControlList = new List<Control>();
private void GetAllControls(Control container)
{
f...
Why do assignment statements return a value?
...in keeping with the design of C that there be a language feature which basically means "keep on using the value that I just assigned". It is very easy to write a code generator for this feature; you just keep on using the register that stored the value that was assigned.
...
Check existence of directory and create if doesn't exist
...
As of April 16, 2015, with the release of R 3.2.0 there's a new function called dir.exists(). To use this function and create the directory if it doesn't exist, you can use:
ifelse(!dir.exists(file.path(mainDir, subDir)), dir.create(file.path(mainDir, subDir)), FALSE)
This will return FALSE if ...
Bogus foreign key constraint fail
...ars that a new connection is opened for each query (bugs.mysql.com/bug.php?id=8280), making it neccessary to write all the drop statements in one query, eg.
SET FOREIGN_KEY_CHECKS=0;
DROP TABLE my_first_table_to_drop;
DROP TABLE my_second_table_to_drop;
SET FOREIGN_KEY_CHECKS=1;
Where the SE...
Search and replace in bash using regular expressions
...n, because I found using bash substitutions to be more than 3x faster than calling sed for each item in my loop.
– rr-
Oct 11 '14 at 13:36
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