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Difference between ObservableCollection and BindingList
...ndingList<T> has the perf penalty only because it is doing something extra that ObservableCollection<T> doesn't support as a feature. Make the latter implement change notification of inner items and give the changedItem's index, it would incur the same. I just think it was a mistake of B...
Auto-fit TextView for Android
... fontFitTextView.setBackgroundColor(0xff00ff00);
final String text = getRandomText();
fontFitTextView.setText(text);
container.addView(fontFitTextView);
Log.d("DEBUG", "width:" + width + " height:" + height
+ " text:" + text...
Find kth smallest element in a binary search tree in Optimum way
...l BST operations take O(depth of node) time, and it takes O(depth of node) extra time to maintain the "number of elements" information for insertion, deletion or rotation of nodes. Therefore, storing information about the number of elements in the left subtree keeps the space and time complexity of ...
Best way to check if object exists in Entity Framework?
... answers above.
Private Function ValidateUniquePayroll(PropertyToCheck As String) As Boolean
// Return true if Username is Unique
Dim rtnValue = False
Dim context = New CPMModel.CPMEntities
If (context.Employees.Any()) Then ' Check if there are "any" records in the Employee table
...
E11000 duplicate key error index in mongodb mongoose
...
var userSchema = new mongoose.Schema({
local: {
name: { type: String },
email : { type: String, require: true, index:true, unique:true,sparse:true},
password: { type: String, require:true },
},
facebook: {
id : { type: String },
token : { type:...
完美解决phpcms批量移动内容后，新闻心情、评论排行等不更新的问题 - 更多...
... $tree->init($categorys);
$string .= $tree->get_tree(0, $str);
$str = "<option value='\$catid'>\$spacer \$catname</option>";
$source_string = '';
$tree->init($categorys);
...
Why are there no ++ and -- operators in Python?
...python-iaq.html
It generally encourages people to write less readable code
Extra complexity in the language implementation, which is unnecessary in Python, as already mentioned
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How can I drop all the tables in a PostgreSQL database?
...en create) used to work on PostgreSQL 9.1. After upgrading to 9.3, the two extra grant is necessary.
– Jinghao Shi
Sep 15 '14 at 23:42
4
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Moving from CVS to Git: $Id$ equivalent?
...44934b1cd774e6d4 $
Some good information is in How do I enable the ident string for a Git repository?.
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How to sort an array by a date property
...
Simplest Answer
array.sort(function(a,b){
// Turn your strings into dates, and then subtract them
// to get a value that is either negative, positive, or zero.
return new Date(b.date) - new Date(a.date);
});
More Generic Answer
array.sort(function(o1,o2){
if (sort_o1_bef...