Any Way To Rename Dictionary Key?
Sep 27, 2011Is it possible to change the key of a dictionary?
View 6 RepliesIs it possible to change the key of a dictionary?
View 6 RepliesI 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]...
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].........................
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]....
I have created a Dictionary class (MyDictionary for the example). I am currently trying to pass MyDictionary into a function, filter it into a new instance of MyDictionary and pass this new instance into another method. When I am attempting to create the second instance from the filtered first instance of MyDictionary via Lambda Expressions and the ToDictionary Method, I am getting the following error:
Unable to cast object of type 'System.Collections.Generic.Dictionary`2[System.Int32,System.String]' to type 'MyDictionary'. I have simplified the example and recreated it in LINQPad and am getting the same error.
Here's the simplified version of my code:
[Code]...
I use VS2005 and I have just started working with the dictionary in particular the Dictionary.ContainsKey method. At the bottom of the page in the msdn library it says the following in the community content How to make sure that Contains functions properly.
View 3 RepliesHow would I go about copying every value of one Dictionary list to another Dictionary list.
Here is what I've done:
VB.net
' Assign values to player pairs enumeration
Private Enum cmptrPairsList
empty = 0
[code]....
im having trouble with renaming a file.. the last 2 digit of DT102T01 up to DT102T15 will count according to the number of files inside the Data_PRN folder.
'===== make directory & rename file . prn to .txt =======
Dim PRNname As String
Dim TXTname As String
[code].....
I have xml file that contains a node named <type> I want to rename it to <oldType> I know I cant rename an xml node so I wrote this :
Dim oldNode As System.Xml.XmlNode = doc.SelectSingleNode("type")
Dim CNode As System.Xml.XmlNode = doc.CreateElement("oldType")
CNode.InnerXml = oldNode.InnerXml
[Code].....
I'm using vb.net 2008. can I rename my project?
View 3 RepliesI made a form in ASP.NET with VB background code.my problem is I want to make that the file which is been uploaded to by the form to change to "Resemey.doc" instead for example "012 MaraCSD.doc"did a bit of research and found out I need to add some code to my vb code.but couldn't find what, and where to put it.
this is my code:
'Add the namespace for the email-related classes
Imports System.Net.Mail
Partial Class SendAttachment
[code]....
i am trying to rename a table which is in ms Access file and i am sending a sql query through the oledb.command and the syntax i used is Rename 'table_original_name' as 'table_new_name' it show an error that invalid sql server what is the way or synax to rename the table which is in the MS Access File
View 3 RepliesThis is what I've wrote.. and it fails to rename existing files
For Each file As String In listbox1.Items
IO.File.Copy(file, IO.Path.Combine(fbCopyto.SelectedPath, IO.Path.GetFileName(file)))
While IO.File.Exists(fbCopyto.SelectedPath & file)
file= file & x & ".wav"
x += 1
End While
Next
i just wanna get to know the basic steps in order to create a VB Program?
View 2 RepliesI am currently working on a project that contains a few images, that are placed in a lot of different controls. I was wondering, is it possible to rename those few resources images , ex. image1 name is bg, and when i click a button to rename that image to bg2 and rename bg2 to bg.. something similar to an image swap, just done by renaming resources. I will wait for a few suggestion, but if all lead to the same possibility, which I hope is not "no, you can not", than my time is narrowed down for better use, other than changing each control's image manually..
View 9 RepliesBuilding a MP3 player fairly large but will upload the zip file if needed. It almost compelted. I am stuck on one thing I want to be able to create a playlist collection based on the name the user enters into a textbox and name the collection with that name if the user enters mysongs as the name the collection would be named mysongs. I know how do declare a new collection but there is no way to change the name to mysongs I am not limited to collections it could be an array or a list of strings my thought here is to save the list of mysongs to a collection to find the list if it already exists and open the list if found to a listbox I know how to go through the list and put results in a listbox. Maybe a collection of collections is not the right way to handle this?
View 3 RepliesI am writing a program. it is called the file renamer, all it does is rename .pptx to .exe (i have a website on wix so I have to rename .exe files to .pptx so I can upload them). I dont want to other users who have no Idea how to rename file extensions any trouble. [code]...
View 1 RepliesI am using visual studio 2008, using VB.NET.I have a number of labels that I want to rename programmatically. The current names for the labels take the form of label100, label101,label102 etc.
View 2 Replies i want to rename a string that contains a number, when the program starts the string looks like this:
d1_filename, but could as well be like: d8_filename.
so, depending on the starting name, i want to rename the string.
If the string is d1_filename, the renamed string would be d2_filename.
or also: if the string is d23_filename, the renamed will be d24_filename an so on.
I have a VB 2008 project XYZ. It is in an XYZ folder. I want to keep it, but I also want a copy of it which I will call ABC which will be in the ABC folder. How do I do this? Just moving files to a new folder does not work. I have found a few places to make changes like the assembly name, but there seem to be many places and I haven't found them all. I found some old posts for earlier versions of VB but they are not applicable.
View 3 RepliesDoes anyone have a simple code for Renaming a Image File that is located in a Folder?[code]...
View 6 RepliesI am trying to rename a directory in c# to a name that is the same only with differing case.[code]...
and I get a IOException - Source and destination path must be different. I have also tried Directory.Move() with the same result.
How is this done? Do I have to create a separate temp directory, move the contained files from the original directory to the temp directory, and then delete the original, and rename the temp directory?
I use VB2010 express and not that knowledgeable. anyways, I'm trying to rename files without extension to .txt[code]...
View 1 Repliessomeone know how to change the name of .tif image after sent a fax??i've these object:
Set FaxServer = CreateObject("FaxServer.FaxServer.1")
Set FaxDoc = FaxServer.CreateDocument(Server.MapPath("fax.doc"))
I am utilizing the following code to rename a computer and join it to a domain
[code]...
rename tabs in the tab control?
View 3 RepliesI'm Using resharper 6 nighty builds and VB.net. I've a big medium project with multiple files that don't follow the code style conventions of my company.I've configured resharper with my own convenctions and It suggest to me the right name for each variable (perfect!).But I can't find any automagic way to make the current name to be replaced with the suggested name.
View 1 Repliesi need to rename my project, so when i build, it will build to a new name, instead of the first name... is this possible? if not.
View 4 RepliesHow can I rename an File using an OpenFileDialog?[code]...
View 1 Repliesi would like to put this into VB Code and make it a programBut how do i make it if an error happens, (file doesnt exist), make a MSGBOX saying Error Code Whatever
View 2 Replies