Have A Dictionary Or Something Of That Sort That Can Hold 3 Values To 1 Key?
May 23, 2009is there a way i can have a dictionary or something of that sort that can hold 3 values to 1 key?
View 12 Replies
ADVERTISEMENT
Use Linq ToDictionary To Return A Dictionary With Multiple Values In The Dictionary Items?
Jan 25, 2010I want to group items from a linq query under a header, so that for each header I have a list of objects that match the header title. I assumed the solution would be to use ToDictionary to convert the objects, but this allows only one object per "group" (or dictionary key). I assumed I could create the dictionary of type (String, List Of()), but I can't figure out how to write it. As an example I have written a simplified version below.
[Code]...
Flatten A Dictionary Of Dictionaries And Sum The Values Of The Inner Dictionary With LINQ?
Apr 16, 2012I have the following object:
countDictionary As Dictionary(of Category, Dictionary(of Date, Integer))
The Class has a Enumeration Property. For the purposes of demonstration, I'll call it MasterCategory.I have been trying to get out an object that looks like the following:
groupedCountDictionary As Dictionary(of MasterCategory, Dictionary(of Date, Integer)
The best result I could get was:
Lookup(of MasterCategory, Dictionary(of Date, Integer))
From:
countDictionary.ToLookup(Function(o) o.Key.MasterCategory, Function(o) o.Value)
Which results in a IEnumerable (Of Dictionary(of Date, Integer)) for each MasterCategory value.However, I need that IEnumerable of Dictionary flattened to one dictionary with all the integers summed (total counts) for each date. I then tried to use various selects and group bys (from numerous stackoverflow posts) to "flatten" it, but my efforts have fallen short.
Current Code
[Category Class]
- MasterCategory As Enum
- Name As String etc
[code]....
Dictionary Does Not Have A .Sort()?
Oct 19, 2011I need to order a Dictionary in VB.net based off of the keys. The keys and values are all strings. The dictionary does not have a .Sort(). Is there a way to do this without having to write my own sorting algorithm?
View 3 RepliesSort A Dictionary By Value?
Dec 1, 2011i was searching for a simple solution that i can use in sorting a dictionary by value, and i was not content with what i found, so i made up these two functions for sorting a dictionary ascending and descending. I do not assume that they are perfect, so improvements are welcomed. They are written in VB.Net and use an intermediary dictionary.
Public Function SortDictionaryAsc(ByVal dict As Dictionary(Of Long, Decimal)) As Dictionary(Of Long, Decimal)
Dim final As New Dictionary(Of Long, Decimal)
[code].....
Sort A 2 Level Dictionary
Aug 13, 2009I have a dictionary in VB.Net
Dim fileDetailsDictionary As New Dictionary(Of String, Dictionary(Of String, String))
In the Value of fileDetailsDictionary , I have 3 keys
key1, key2, key3
I want to sort the whole dictionary by Key3
Sort The Dictionary In DESCENDING Order Using Its Keys?
Oct 7, 2010I have a dictionary with the keys being integer and the values being string. I was wondering how can I sort the dictionary in DESCENDING order using its keys.
View 6 RepliesStore Objects With Key In Some Sort Of Collection/Dictionary?
Jun 10, 2012I need to Store Objects with Key like:
Key: <Fontname & FontSize> / Object: <Font Object>
Example content:
ArialRegular8 | <Corresponding Font Object>
ImpactItalic10 | <Corresponding Font Object>
TimesRomanRegular12 | <Corresponding Font Object>
These font types come from an external library, the real type is DocumentFont, I prefer not to store just values and recreate the font object later, so I need to store the object, and i want to be able to call Contains() later without looping. like for example Dictionary (of T Key, T Value), is this the best option? Also, to be able to call Contains(), i will have to overload function Contains() using an Interface or this is already built-in in some Collections / Dictionaries when using a String as Key?
Get All Dictionary Values?
Dec 6, 2010It is possible to output all the dictionary values to a textbox? Not the keys, just the values of all the keys.
View 5 RepliesHow To Find Values In Dictionary
Feb 22, 2012I have this dictoinary:
Dim chardict As Dictionary(Of Char, Integer) = Nothing
chardict.Add("A", 0)
chardict.Add("B", 1)
I wanted to do the following if statement but I am a bit stuck on the syntax:
if chardict.containskey("A")
'display the value that corrosponds to the letter "A"
'in this case display the character 0
[some code]
end if
Add Keys/values To Dictionary At Declaration?
Sep 22, 2010Very easy today, I think. In C#, its:
Dictionary<String, String> dict = new Dictionary<string, string>() { { "", "" } };
But in vb, the following doesn't work.
Public dict As Dictionary(Of String, String) = New Dictionary(Of String, String) (("",""))
I'm pretty sure there's a way to add them at declaration, but I'm not sure how. And yes, I want to add them at declaration, not any other time. :)
I've also tried:
Public dict As Dictionary(Of String, String) = New Dictionary(Of String, String) ({"",""})
And...
Public dict As Dictionary(Of String, String) = New Dictionary(Of String, String) {("","")}
And...
Public dict As Dictionary(Of String, String) = New Dictionary(Of String, String) {{"",""}}
Fetch Values From Dictionary Object?
Mar 11, 2011I have a dictionary of type:
Dim parentDictionary As Dictionary(int,Dictionary(string,string)).
Dim childDictionary As Dictionary(string,string).
parentDictionary.Add(1,childDictionary)
Now I need to iterate over childDictionary to fetch key value pairs.My childDictionary is inside parentDictionary.
Insert Values Into Dictionary On Instantiation?
Nov 3, 2009I can insert values into a VB.NET Dictionary when I create it? I can, but don't want to, do dict.Add(int, "string") for each item.
Basically, I want to do "How to insert values into C# Dictionary on instantiation?" with VB.NET.
var dictionary = new Dictionary<int, string>
{
{0, "string"},
{1, "string2"},
{2, "string3"}
};
Summing Values In Item() Of Dictionary?
May 10, 2009I have a dictionary that has strings variables as keys and a List collection of doubles as values.
Dim CellAddressContainer As New Dictionary(Of String, List(Of Double))
Dim Results As New List(Of Double)
Within a loop I populate the Results variable as follows:
[code].....
Update Values Of Objects In A Dictionary?
May 12, 2011I add objects (structure type) to a dictionary with string keys.
i don't figure out how to update a value of a object.
i use TryGetValue to get a reference to a object of the dictionary collection.
But the changes i made at the referenced object are not made at the object at the dictionary.
Any hints how to get a object reference to change values without to re-add the complete object?[code]...
Writing Dictionary Values In Separate XML Tags?
Jan 16, 2012If I had multiple entries under my value in my dictionary, is there anyway I can put each value in separate tags to create an xml document?
Is there anyway to split the 3 values into their own tags?
Update Values In A Dictionary With New Fields Obtained From Wmi Query?
Jan 20, 2012I still can't assign the process the username of the session id that is associated with it.[code]...
View 1 RepliesIterate Through The Keys And Values Collections Of A Dictionary Object Using An Index?
Apr 25, 2009I have a VB.NET project where I am able to iterate through the keys and values collections of a dictionary object using an index:
MyDictionary.Keys(idx)
MyDictionary.Values(idx)
When this code is taken from the test project and placed into the real project I get the following error:
'System.Collections.Generic.Dictionary(Of Double, String).KeyCollection' cannot be indexed because it has no default property.[code]...
In the line in sub search that says "dtf.Keys(idx) = 0" place your cursor after the right parenthesis and backspace you should get a tooltip that says, "<Extension> ElementAtOrDefault(index as Integer) as Double - index: the zero based element of the index to retrieve.
Sort A Set Of Coordinate Values (x,y,z)?
Dec 23, 2005Any one aware of how to sort a set of point coordinates in the top to bottom, left to right fashion?
For example, I have a set of values like (3,5,10), (4,6,12), (4,6,1), (2,8,14).[code]...
.net - Sort Generic List On Two Or More Values?
May 15, 2009We have a generic List(Of Product) that must be sorted on two or more properties of the Product class.
The product class has the properties "Popular" numeric (asc), "Clicked" numeric (desc), "Name" string (asc). In order of naming the properties we want the list to sort.
How can it be sort with an lamba statement? If have found to sort the list based on one property.
Sort Values (int And String) Of A Listbox?
Apr 3, 2011I need to sort the values of my listbox to have the latest date on top plus some text
I used a reference I found here on the forum but I can't get it to work properly.[code]...
.Net 2008 Sort DataGridViewTextBoxColumn Numeric Values?
Jan 27, 2012I�m using VB.Net 2008 application program.I�m using DataGridView, where column types DataGridViewTextBoxColumn. I have 3 fields. 1 field values are numeric, 1 field values are string and 1 field values are decimal.
When I try to sort the string value column, it sorts correctly. But when i try to sort the numeric value column, it sorts as if its string value.
2008 : Sort DataGridViewTextBoxColumn Numeric Values?
Jan 27, 2012I�m using VB.Net 2008 application program.I�m using DataGridView, where column types DataGridViewTextBoxColumn. I have 3 fields. 1 field values are numeric, 1 field values are string and 1 field values are decimal.When I try to sort the string value column, it sorts correctly. But when i try to sort the numeric value column, it sorts as if its string value.I searched a lot to make it sort numerically. But I couldn�t find it.
View 1 RepliesGroup, Spilt, Sort And Sum Up Values From A EDI String Into Variables?
Nov 15, 2010I am new to VB.Net 2008. I have a tricky task to resolve, it is regarding extracting characters (values) from a long string, the extracted values from the text shall be summed up and sorted by keywords, reformatted and saved into a CSV file.
[Code]...
Sort A Bindingsource Basing On A Column That Has Alphanumeric Values ?
Jan 2, 2012how to sort a bindingsource basing on a column that has alphanumeric values
View 11 Replies[2005] Sort And Get Unique Values From List (Of Type)
Feb 24, 2009I have a List (Of Type) which contains many instances of a class with three properties, IPAddress, AlertDate and AlertTime.There can be many duplicates of IPAddress in this list :-
[code]...
I need to be able to pull out just the latest (by date and time) entry in the list for each unique IPAddress. Is there any simple way of doing this?
Sort Field Values In Specified Order In Crystal Reports In 2005?
Feb 14, 2012I am using crystal reports in visual studio 2005 to generate invoices. I want to sort different categories of products. I'm using group by on category field. How can i set a specified order in crystal reports for categories.I have for example 3 categories namely 'Recipe', 'Plain Spices', and 'Horeca'....The crystal reports shows them in ascending or descending order but i want Recipe data at top, then Plain Spices and Horeca in the end...!!How can I achieve this in my crystal report that has already been made?
View 2 RepliesVS 2010 Sort The Values Of A Listbox With Dates And Concatenated Text?
Apr 2, 2011I need to sort the values of my listbox to have the latest date on top plus some text. here is the code I'm using:
[Code]...
Dictionary In A Dictionary - Collection Of Data To Pass Back ?
Apr 27, 2009I have created a class with a function in it. I have a collection of data I want to pass back. I tried an arraylist first. Now I am trying to use a dictionary. My problem is that it creates the dictionary ok, but I am only get the last row of data from my
Function GetWeldAuditInfo(ByVal ResourceId
As
String,
ByVal VendorId
[CODE].........................
Sort Data In A Sorted List Using Values Instead Of Keys From Highest To Lowest?
Jun 15, 2010How can I sort data in a sorted list using values instead of keys from highest to lowest?[code]...
View 2 Replies