dictr | A better dictionary class for R | Dictionary library
kandi X-RAY | dictr Summary
kandi X-RAY | dictr Summary
dict provides a new data structure specialized for representing dictionaries with string keys.
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QUESTION
I am tryng to extract all items from a ContextMenuStrip to a List(Of ToolStripMenuItem)
.
I can get the reference of the ContextMenuStrip of a DataGridView, then - with a recursive function - I want to extract the Name
and Text
properties of all the ToolStripMenuItems
, excluding the ToolStripSeparators
, if any.
I use this code:
...ANSWER
Answered 2020-Oct-15 at 15:29Since only sub-items of type ToolStripMenuItem are needed, you can simply filter the ContextMenuStrip.Items collection beforehand, collecting only Item of that specific type. The Collection.OfType([Type]) method is commonly used for this. OfType()
only returns Items of the type specified: ToolStripSeparator is not of that Type, so it won't be included in the filtered collection (nor will other components types such as ToolStripTextBox, ToolStripComboBox etc.).
The recursive function can be an iterator which returns an IEnumerable(Of ToolStripMenuItem)
that yields each item found in a for each
loop.
Call the main method as, e.g.,:
► Set Option Strict
, Option Explicit
and Option Infer
to On
QUESTION
This is a very simple task, but somehow, I can't seem to figure it out.
Let's say I have a dictionary
...ANSWER
Answered 2020-Apr-08 at 09:32It is because your dictionary keys are tuple, meanwhile the items in A are list. You should convert all the element inside A to tuple so the key may match
A python-ic way (without numpy) might seems like this (considering every item in A matches a key in dictr)
QUESTION
Quick Dependency Injection / IoC Container question that will hopefully be an easy one for a seasoned developer. I am newer to DI, and have the basics of the process down for registering the types and resolving them for building the instances using constructor injections, but have a question about the process for loading their instances with data and when/where to do that correctly.
So if you have an object that has been resolved to build the object with the DI container - it will load a hollow object, but at what point are you suppose to load the object with its needed data?
For Example: If you have a IPerson interfaces that is implemented by Student class, and Principal class. And you have a ISiteVisit interface that is implemented by SiteVisit and you resolve in the following fashion:
...ANSWER
Answered 2017-Jan-17 at 21:10I usually use the Factory pattern or Repository pattern to handle creating and maintaining entities such as Person.
I Generally use Dependency Injection to compose the service classes that implement these patterns.
For example:
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