Convert A String Of Key / Value Pairs To HashTable Or Dictionary Or?
Jun 19, 2010
In VB.NET, how can I convert the following string into some kind of key/value type such as a Hashtable, Dictionary, etc?"Name=Fred;Birthday=19-June-1906;ID=12345".I want to extract Birthday or ID without having to split the string into an array.I'd prefer not to split the string into an array in case the format of the string changes later.I don't have control over the string.What if someone switches the order around or adds another element?
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Dec 16, 2009
What I would like to do is be able to take a Dictionary of key value pairs and make the key the name of a variable and the value the value. From searching the net seems to be very vague on whether this is possible.
[Code]....
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Sep 6, 2011
When I initialize a new dictionary can I specify the key/value pairs on the same line?
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Oct 18, 2010
I need to place objects of various types in a "collection" and be able to:
1) Change the value of a property on any of the objects by using it's key.
2) Read the objects in the order they were placed in the "collection"
3) Read the objects in the reverse order they were placed in the "collection"
My findings so far:
1) Collection won't work because Item property is read only
2) It seems that Hashtable and dictionary won't work because I cannot iterate through them in reverse order.
3) Stack won't work for obvious reasons.
Is there a collection like data structure that has satisfies the requirements?
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Nov 2, 2010
To be able to sort a dictionary by value I'm using this code:
Dim idCurrentJobs As IDictionary(Of String, Int32) = New Dictionary(Of String, Int32)
'The string in the dictionary represents a jobname and the integer is a counter for how many jobs im currently are running in the application'
idCurrentJobs.Add("JobName1", 2)
[code]....
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Jul 23, 2010
I try to convert names and values parameters of function into a hashtable. For name of parameter, it's ok, but not for value.
Function test(ByVal param1 As String, ByVal param2 As String) As Hashtable
Dim hash As Hashtable = New Hashtable
Dim stFrame As New StackFrame
[Code]....
There is a property to get default value of parameter (if optional) with param.DefaultValue but how to get current value ?
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Jul 23, 2009
I have a variable that reads in a POST from paypal. This is the instant payment notification stream and all the keys and values are stored into a string variable .
mc_gross=0.05&protection_eligibility=Ineligible&payer_id=UEWAFF732VL&tax=0.00&payment_date=22%3A36%3A55+Jul+21%2C+2009+PDT&payment_status=Completed&charset=windows-1252&first_name=Scot
This is part of the string. How do I break this up into a set of variables. I tried using request.form but this did not do anything. I'm trying to get the variables and then pass them to a function that will write everything to a database.
Dim amount = Request.Form("mc_gross")
Dim currency = Request.Form("currency")
Dim pmtdate = Request.Form("payment_date")
Dim status = Request.Form("payment_status")
I only need certain variables from this variable which is strNewvalue. How to I get the values stored in this variable?
Response.Write(IPNResponse)
Dim myEmail As MailMessage = New MailMessage()
myEmail.To = "e@aol.com"
[Code].....
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Nov 15, 2011
How would I go on splitting a string into pairs of letter in VB?
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May 17, 2010
I want to pass a string containing name/ value pairs to a url via webrequest. How would I build a string with name/value pairs?
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Jun 3, 2011
I want to make a hashtable of object references and I want a different object's reference to be the key. How can I do this in vb.net? In java (assuming I am using the default toString method and that add() takes a string as a key and an object ref as the value) this would be something like: hashtable.add(obj1.toString(), obj2)
I do not want to use a vb.net gethashcode() function because I want deep clones of objects to have different identifiers. A related question is what is the default toString in vb.net? How can I get a string that represents an object reference in vb.net?
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Dec 30, 2009
Converting c# to vb. conversion tool is not doing a good job. [code]...
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May 29, 2012
I'm trying to put sub-child values from XML into a dictionary collection using LINQ. I've done this with lists and custom collections which follow the same structure as the XML but am unable to search for specific values. If I know parentName, childName, and subChildName I want to be able to find subChildProperty1.value and subChildProperty2.value without iterating through the entire collection and each of the subsequent sub-collections, as I have to do with lists. This may not be the best implementation, and am open to suggestions, but still would like to figure out how to make this work.[code]...
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Aug 5, 2011
My WCF service function return type is Dictionary(Of String, String). So I have to convert my Dataset to Dictionary.
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Aug 5, 2011
My WCF service function return type is Dictionary(Of String, String). So I have to convert my Dataset to Dictionary.
Here is my dataset example.
Account AccountNames
abc abc1
abc abc2
[Code]....
Using LINQ or without LINQ, How can I convert Dataset To Dictionary(Of String, String)
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Aug 5, 2011
My WCF service function return type is Dictionary(Of String,String). So I have to convert my Dataset to Dictionary.[code]...
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Jan 18, 2011
Can I do anything more or less with IDictionary? How do these two collections differ?
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Jun 23, 2009
I have the following web method:
<WebMethod()> _
<ScriptMethod(ResponseFormat:=ResponseFormat.Json, UseHttpGet:=True, XmlSerializeString:=True)> _
[Code].....
I wanted to use HttpGet here so that the result can be cached.
I tried every variation of calling this, but no luck. Is this possible with GET?
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Mar 20, 2011
System.Collections.Specialized contains StringDictionary
[url]...
What's difference with Strong Typed Dictionary in Generics?
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Jan 15, 2012
I am looking to write the contents of a dictionary to XML. I have written the dictionary contents to a string as i have been told it is easier to write from a string to XML instead of from a dictionary. But im not sure if this is correct?
Is there any way to write this to XML from the dictionary or string?
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May 17, 2009
How does performance for reading/adding values from/to Dictionary(Of String, omeReferenceType) depend on the number of records already entered? I mean, does timeincrease as O(1), O(log n), O(n) when n goes to be large, or in some other way?
Dim index As New Dictionary(Of String, SomeReferenceType)
' N entries added in a loop
' ...
[code]....
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Mar 12, 2012
I need to do some comparing and shuffling of fields, (I come from a more PHP background and working with arrays is completely different, as suggested after reading many things here I know VB.NET uses list and Dictionary easier. I have a dictionary (of string, dictionary (of string, string)) which is filled well, but after I try to read it out, it's always empty....
Below I fill a few things. The var I am talking about it
fillDictionary inside the matcheswholename VALUES part.
I fill up the fillDictionary and add it to the matchesWholename
After which I clear it, because it is in a loop and more is to come.
Dim matchesTotal As New List(Of String)
Dim fillDictionary As New Dictionary(Of String, String)
Dim matchesWholename As New Dictionary(Of String, Dictionary(Of String, String))
Try
If ds.Tables("matchesWholename").Rows.Count > 0 Then
For Each dr As DataRow In ds.Tables("matchesWholename").Rows
[Code] .....
When later I try to readout like this, it returns nothing....I am actually sending a copy of the filldictionary into it or not? or does my clear() method clear what's inside it?
Dim pair As KeyValuePair(Of String, Dictionary(Of String, String))
Dim subpair As KeyValuePair(Of String, String)
For Each pair In matchesWholename
' Display Key and Value.
For Each subpair In pair.Value
Console.WriteLine("{0}, {1}, {2}", pair.Key, subpair.Key, subpair.Value)
Next
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Jan 9, 2012
This code has changed and will be applied to another question
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Jan 12, 2012
I was wondering if it is possible to write both the dictionary key and all records associated with the value to string?
However i only get the output of the Key and one item in value (service status)
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Jan 25, 2010
I 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]...
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Jan 31, 2012
I have a dictionary that I want to access with a key that is the combination of a string (AcctNum) and a date (BalDate).It seems to me the simplest approach is to create the key by simply converting the date to a string and concatenating:MyKey = BalDate.ToString & "|" & AcctNum
I know I also have the option of creating a composite key by writing a separate class and overriding GetHashCode() and Equals() a la this solution. To me, the concatenated string is a simpler, if somewhat less elegant, solution. Am I missing some compelling reason why I should go with the composite key class approach?
This lookup is the crux of the project I am working on, so performance is my main objective (with readability a close second).
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May 5, 2011
So I had a smart idea to make a dictionary with all my variables so I could save them easily in chunks. This includes String, Boolean and Integers. When I was in Framework 3.5 I only had a few warnings about stuff that I didn't have coded in, but now in Framework 4 I am maxing out all my warnings with Implicit conversions. Personally I don't want to go to every number and put quotes around it put quotes around "True" because then it may change the method.
Public Function loadGeneral(ByVal fName As String) As Boolean
Dim tempDict As New Dictionary(Of String, String)
For Each kvp As KeyValuePair(Of String, String) In GeneralSettings
Dim v1 As String = kvp.Key
Dim v2 As String = QuizZing.My.Settings.GetSetting(fName, v1)
[Code] .....
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Apr 27, 2009
I 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].........................
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Apr 16, 2012
I 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]....
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Aug 5, 2011
Convert Dataset to Dictionary(of Sting,List(of sting)). My Dataset is like below..[code]...
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Apr 30, 2011
1) Is it possible to filter sale orders by full customer name? I need to do this instead of against first/last name
2) Is it possible to get store name/ID pairs via the API?
3) Is it possible to filter orders by shipping_country?
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