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How do I check how many options there are in a dropdown menu?
...
var length = $('#mySelectList > option').length;
This assumes your <select> list has an ID of mySelectList.
http://api.jquery.com/length/
http://api.jquery.com/children/
http://api.jquery.com/child-selector/
...
What is the @Html.DisplayFor syntax for?
...he following code:
@model string
@if (string.IsNullOrEmpty(Model)) {
<strong>Null string</strong>
}
else {
@Model
}
Then @Html.DisplayFor(model => model.Title) (assuming that Title is a string) will use the template and display <strong>Null string</strong> if the...
JavaScript: Is there a way to get Chrome to break on all errors?
...nt in Chrome to the "break on all errors" functionality of Firebug. In the Scripts tab, Chrome has a "pause on all exceptions", but this is not quite the same as breaking on all errors.
...
Edit line thickness of CSS 'underline' attribute
...
Here is one way of achieving this :
HTML :
<h4>This is a heading</h4>
<h4><u>This is another heading</u></h4>
CSS :
u {
text-decoration: none;
border-bottom: 10px solid black;
}
Here is an example: http://jsfi...
Convert a string to an enum in C#
...Active", true);
I tend to simplify this with:
public static T ParseEnum<T>(string value)
{
return (T) Enum.Parse(typeof(T), value, true);
}
Then I can do:
StatusEnum MyStatus = EnumUtil.ParseEnum<StatusEnum>("Active");
One option suggested in the comments is to add an extensi...
Make Vim show ALL white spaces as a character
...s like this
:set listchars=eol:$,tab:>-,trail:~,extends:>,precedes:<
so, now, after you use
:set list
everything that isn't explicitly shown as something else, is then, really, a plain old whitespace.
As usual, to understand how listchars works, use the help. It provides great inform...
Is there an easy way to create ordinals in C#?
...function to do it.
public static string AddOrdinal(int num)
{
if( num <= 0 ) return num.ToString();
switch(num % 100)
{
case 11:
case 12:
case 13:
return num + "th";
}
switch(num % 10)
{
case 1:
return num + "st...
HashSet vs LinkedHashSet
...float loadFactor) {
super(initialCapacity, loadFactor, true); // <-- boolean dummy argument
}
...
public LinkedHashSet(int initialCapacity) {
super(initialCapacity, .75f, true); // <-- boolean dummy argument
}
...
public LinkedHashSet() {
super(16, .75f, true); ...
HashMap and int as key
...hash = hash(key);
int i = indexFor(hash, table.length);
for (Entry<K,V> e = table[i]; e != null; e = e.next) {
Object k;
if (e.hash == hash && ((k = e.key) == key || key.equals(k))) {
V oldValue = e.value;
e.value = value;
e.r...
How to bind a List to a ComboBox?
...blic class Country
{
public string Name { get; set; }
public IList<City> Cities { get; set; }
public Country(string _name)
{
Cities = new List<City>();
Name = _name;
}
}
List<Country> countries = new List<Country> { new Country("UK"),
...