There a dictionary object that gets loaded with the following key values:
[Code]...
In most situations, life is good and all the individual key values are needed/unique. But in certain situations, the keys with letters behind them (ie...189a, 189b, 189c) all mean the same thing (ie...189). So I need a way to see if a key value exists (like the containskey method) for only the first part of the key and then return true.
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'm trying to setup a WCF web service to be consumed by JavaScript using JSON and jQuery.I've noticed that you can send JSON without a DataContract if the service method parameters match the naming structure of the JSON object:
<ServiceContract(Namespace:="http://foo.com/bar")>
<AspNetCompatibilityRequirements(RequirementsMode:=AspNetCompatibilityRequirementsMode.Allowed)>
[code]....
I have a generic dictonary which is templated in the following manner:
[code...]
If I wanted to omit certain list items against arbitrary keys (that is the items that are in the list contained within the value part of each of the key value pairs making up the dictionary) given some arbitrary condition (lets say omitting list items where a list item contained the string "abc")
I would expect to able to create/project into a new dictionary which would contain entries which contained lists WITHOUT those items whose name contained "abc"
How do I achieve this using a Lambda expression?
I was trying something like this:
[code..]
I 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
I have a dictionary(of someType, someOtherType) (the types are immaterial). With a given value, I need to find all the keys that have that value in the dictionary. What I am currently doing is this:
Dim foundList as New List(of someType)
For each key as someType in myDictionary.Keys
If myDictionary(key) = givenValue Then
[code]....
I want to extend the VB.NET dictionary object to not bitch about an item being already in the associative array.This is what i want to do:
[Code]...
My problem now is:How can I replace the (of object, object)line to let the dictionary be of generic/customizable type?
I'm attempting to create a customized dictionary object, because I want to add some code to the Add routine, and I can't just inherit because Add is not overridable.
So I'm creating a class that implements IDictionary. Already I am confused, because Dictionary implements a lot of interfaces, listed below:
Implements IDictionary(Of TKey, TValue), ICollection(Of KeyValuePair(Of TKey, TValue)), _
IEnumerable(Of KeyValuePair(Of TKey, TValue)), IDictionary, ICollection, _
IEnumerable, ISerializable, IDeserializationCallback
But IDictionary inherits ICollection and IEnumerable, so why implement all three (and don't they have overlapping methods)?
#2, when I implement IDictionary, the code fills in two Add methods (one for the ICollection add of a keyvaluepair, one for the Idictionary method). Apparently both these add methods are required for Idictionary, yet a regular dictionary (which implements IDictionary) only has one Add method that I can see. I actually would like to have only one Add method if possible. Why am I being asked to make two (and that's before all the other interfaces have been added)?
I 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.
I'd like to store a set of key/value pairs in the application settings of my ASP.NET web app, but I'm not finding a straightforward way to do that. For example, these two questions tell me that StringDictionary etc. won't serialize to XML and suggest that I'll have to roll my own implementation. But it seems like this should be easier to do; after all, web.config is XML and < applicationSettings> is essentially a collection of key/value pairs, so it feels like I'm missing something obvious. Given my specific case below, do I really have to roll my own serialization, or is there an easier workaround?
The web app in question is a basic contact form that sends email to different recipients based on the value of a parameter; e.g. [URL]...The goal is to be able add or remove recipients (or change their addresses) by editing the web.config file so that I don't have to recompile and can easily maintain different configurations in test and production environments. For example:
// I can use something like this for the sender address SmtpMsg.From = New MailAddress(My.Settings.EmailSender)
// And then just edit this part of web.config to use different addresses in different environments.
<setting name="EmailSender" serializeAs="String"> <value>webcontact@exampledomain.com</value>
[Code]...
i am trying to locate the id of a field using the binding source, if i type the full id, it is locating it successfully no problem, but that is not what i want, i want to type 3 digits of the end of the id and be able to still locate that record. i triedusing wildcards with it "%" with no success any suggestions?
View 2 Repliesi need to extract a part of a given textfile, which is located between a start character pattern and a end character pattern, e.g.:
this is my textfile
[start]
and this i want to extract
[code]....
It is possible to find the points of a part of image example, do I have a photography of a castle where there is a flag, manage to find where is the flag positioned to runtime?
View 4 RepliesDim MainHwnd As IntPtr = FindWindow(Nothing, "NameOFtheSoftware - Trial Version (0 days)")
'MenuClick(MainHwnd, CType(2, IntPtr), CType(0, IntPtr))
I am using the name of the window to do the clickingaction, But the software is a trialversion and changes the days amount. So how to make it that it doesnt need to find the whole windowname, but just a part of it.For Example: NameOFtheSoftware
I am writing a class library to interact with a domain Active Directory. In my object model, I have the following:
Domain;
Organizational Unit;
Group;
User.
In my Domain object, I have an Entries property and an Add() method.
public class Domain {
// The ReadOnlyDictionary<TKey, TValue> is a custom wrapper over an IDictionary.
public ReadOnlyDictionary<string, IDirectoryEntry> Entries { get; }
public void Add(IDirectoryEntry entry) {
Entries.Add(entry.Name, entry);
[Code] .....
For your information, I implemented the INotifyPropertyChanged interface to ease my life, but I don't seem to find a way to make it work the way I want. Perhaps am I not doing things right somehow, as for the location of different methods, I don't know. How can I make my Domain aware of a change that occured within one of its Entries, so that the TKey value is also changed? That is wanted because one could possibly add an entry, change its name meanwhile adding a new entry with the "old" name of the actual within entry, and cause a conflict, etc. In the end, causing the test to fail. But I'd like to make it pass like it actually is. Is there another better approach or workaround?
I am attempting to write a Dictionary Collection to a file.The Collection is structured like so:
GlobalCollection (Collection of TestCollection)
(0)
[KEY]
[code].....
File create error, not sure why?
Private Sub createStream()
Dim i As Integer
Dim j As Integer
Dim s As String
[code]....
I am having issues with a dictionary object I'm trying to use.
I have this code:
CODE:
Every time I run it, I get this error: Arithmetic operation resulted in an overflow
I am adding to the dictionary like this:
CODE:
Is there anything I am doing wrong?
That question sounds maybe a little confusing so I'll try to explain it with an example.[code]...
View 1 RepliesI 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.
I want to find the values from a number of dropdown and textbox controls inside a repeater control.
db.ConnectionString = SystemConnString
db.Open()
Dim selectedAdTitle As String = ""[code].....
AdTitle and AdFullName dont seem to be bringing across the values. There is no error so they have found the control ok. Below is the ASPX file code.
<asp:Repeater ID="myRepeater" runat="server">
<ItemTemplate>
<asp:DropDownList ID="AdTitle" runat="server">[code]......
I am having trouble uploading any file to the path in the error message below. Does anyone have any idea what the problem is. I did some research on this and most sites say that the permissions need Read/Write access for the asp.net user. I tried this and I still receiver the error. Here is the error:
For example Error saving file education_calendar.pdf System.IO.DirectoryNotFoundException: Could not find a part of the path "d:inetpubaophaUploads". at System.IO.__Error.Here is my code for the click event. I am not sure what is happening here:
Private Sub cmdUpload_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdUpload.Click
If IsPostBack Then
Dim MyFileColl As HttpFileCollection = Request.Files
Dim MyPostedMember As HttpPostedFile = MyFileColl.Get("File1")
[Code]...
I am having trouble uploading any file to the path in the error message below. Does anyone have any idea what the problem is. I did some research on this and most sites say that the permissions need Read/Write access for the asp.net user. I tried this and I still receiver the error.
Here is the error:
For example Error saving file education_calendar.pdf System.IO.DirectoryNotFoundException: Could not find a part of the path "d:\inetpub\aopha\Uploads\". at System.IO.__Error.
Here is my code for the click event. I am not sure what is happening here:
Private Sub cmdUpload_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdUpload.Click
If IsPostBack Then
Dim MyFileColl As HttpFileCollection = Request.Files
Dim MyPostedMember As HttpPostedFile = MyFileColl.Get("File1")
[Code] ......
I have to match string like "DAY1","DAY2","DAY3"....."DAY31" with regex in vb.net. I tried something like this - ^?DAY(0[1-9]|[12][0-9]|3[01])$ but it did not work.
The pattern should have succesfull match if the source string is either DAY1 or DAY2 or DAY3 to DAY31 like so.
i have the following code
Dim url1 As String
url1 = "www.google.com" & GWP_NodeList.Item(i).SelectSingleNode("icon").Attributes("data").InnerText
Dim webClient As New System.Net.WebClient
Dim bytes() As Byte = webClient.DownloadData(Url)
[code]....
I get this error:
Could not find a part of the path 'D:UsersGlenn RuysschaertDocumentsVisual Studio 2008ProjectsUITestUITestinx86Debugwww.google.comigimagesweathersunny.gif'.
How on earth did it all of a sudden add the startuppath to my url?
I have an xml file I parse to get a path to some other xml files that I then want to parse and read values from. I am fine to get the path from the first xml document and fine to parse the subsequent documents.Where I am struggling is implementing the path. It is being stored using system level variables like:
%appdata%my_appconfig
When I try open the file like this:
xmlConfig.Load(userConfigFile)
It tries to start in the application working directory - assume c:emp So the error message I get is:
Could not find a part of the path 'C:emp\%appdata%my_appconfighive.machine.xml'.
Is there a way I can use this pathing structure in my VB code or determine the actual fully qualified path programatically?
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]...
I save the client data into an array list. How to find part of data(currentIP) inside the array list(clientList) with fast method? [code]
View 1 RepliesI 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]....