Say I have a dictionary with whatever number of values.
And then I create a list.
If any of the values of the list are found in the dictionary, regardless of whether or not it is a key or an index how do I delete the full value?
E.g:
dictionary = {1:3,4:5}
list = [1]
...
dictionary = {4:5}
How do I do this without creating a new ...
I have a List, that is not showing any items until you scroll, then the items show up. Does anyone know how to fix this? I tried calling list.invalidateDisplayList(); and list.invalidateList(); But with no luck.
Any ideas?
Thanks.
EDIT: Here is some code:
<mx:Script>
<![CDATA[
[Bindable]
private var _xmlList:XMLList = ...
How can locate text in the mx:List like this?
|"text1" "test2"|
-----------------------
|"text3" "text4"|
...
I have a menu that is being populated by a server and I have no access to the server. So I am limited to doing this on the client side.
Right now there is a dropdown menu on the navigation with 14 choices. The client wants to only show 3 of them.
They're not using any frameworks like jquery or mootools, so I have to do this the old-f...
Having successfully gotten a sample program working, I'm now starting
to do Real Work with Fluent NHibernate - trying to use Automapping on my project's class
heirarchy.
It's a scientific instrumentation application, and the classes I'm
mapping have several properties that are arrays of floats e.g.
private float[] _rawY;
...
I would like do something like that.
list_of_urls = ['http://www.google.fr/', 'http://www.google.fr/',
'http://www.google.cn/', 'http://www.google.com/',
'http://www.google.fr/', 'http://www.google.fr/',
'http://www.google.fr/', 'http://www.google.com/',
'http://www.goo...
I am using Drupal and have sifr set on list items, and also a, a:hover are set via Drupal so that the links hover. I looked at the sifr3-rules.js file drupal's render module creates and it looks good. and in fact my other sifr items look fine... But the list item ones are goofing for some reason... There is extra space below the list,
so...
Im a trying to find a sublist of a list. Meaning if list1 say [1,5] is in list2 say [1,4,3,5,6] than it should return True. What I have so far is this:
for nums in l1:
if nums in l2:
return True
else:
return False
This would be true but I'm trying to return True only if list1 is in list2 in the respective order...
After I have created a list and added the contents to it, how can I find the length of the list?
...
Original question: Can someone tell me how to use "slice lists" and the "ellipsis"? When are they useful? Thanks.
Here's what the language definition says about "slice_list" and "ellipsis"; Alex Martelli's answer points out their origin, which is not what I had envisioned.
[http://docs.python.org/reference/expressions.html#tok-slici...
the list.index(x) function returns the index in the list of the first item whose value is x.
is there a function, list_func_index(), similar to the index() function that has a function, f(), as a parameter. the function, f() is run on every element, e, of the list until f(e) returns True. then list_func_index() returns the index of e.
...
or the other way around?
I use generic lists all the time. But I hear occasionally about IEnumerables, too, and I honestly have no clue (today) what they are for and why I should use them. So, at the risk of having something on the net forever more proclaiming my ignorance, I humbly post this question.
...
I am trying to create a checking program to see if the word is in a matrix horizontally or vertically. I have the code for checking the row, but would checking the column be similar to the row code?
def checkRow(table, r, pos, word):
for i in range(0, len(word)):
if table[r][pos+i] != word[i]:
return False
re...
In Python, when should you use lists and when tuples?
Sometimes you don't have a choice, for example if you have
"hello %s you are %s years old" % x
then x must be a tuple.
But if I am the one who designs the API and gets to choose the data types, then what are the guidelines?
...
I want to get data from my data access layer into my business layer, then prepare it for use in my UI.
So i wonder: is it better to read my data by DataReader and use it to fill a List<BLClasses> or to fill a DataSet and send the DataSet to UI Layer ??.
I'm interested in good performance and scalability.
...
I have a online PHP system where users vote different awards for their friends, however I am finding that the awards in the middle of the page and at the bottom get less votes overall. I would prefer this to be evenly distributed so came up with ordering the list of awards by random to make it different each time you load the page.
This...
Possible Duplicate:
IList<Type> to IList<BaseType>
I am programming in C# using .NET 2.0 and I don't understand why the cast below results in a null reference.
If you have an IList<IChild>, why can't you cast it to an IList<IParent> where IChild implements IParent.
using System.Collections.Generic;
namespace InterfaceTest
{
...
Hi,
I want to do my component that works similar to most of data controls (MS, Telerek, etc.):
myControl.DataSource = new List<myClass>();
mycontrol.NameField = "Name";
myControl.ValueField = "Value";
myControl.DataBind;
I have some test code:
class myClass
{
public String Name
{
get { return _name; }
}
...
}
class c...
items = []
items.append("shrooms")
items.append("meth")
items.append("weed")
// FAKE METHOD::
items.amount() // should return 3
How I do it right?
...
My gut tells me there is no good way to achieve this, but, unlike Mr. Stephen Colbert, I'd rather trust a community of developers than my gut...
Is there a known way to efficiently implement a "best of both worlds" list, one that provides random access by index and O(1) insertion/removal like a linked list?
I foresee two possible outco...