I have the following piece of code which is giving an odd error that I can't seem to locate.[code]...
I manually edited the file to remove the item where the error is happening and it continues to happen on the next item. If I stop it at 2500 no problems. Could it be to many items in the dictionary maybe.
I am trying to created nested dictionary variable like the below, But I get compile error stating that it needs "}" at line where I am adding items (line #2) to my nested dictionary. What Am I missing here?
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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.
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when I create a listview item programmatically and add listitems I get error "The object variable or with block-variable is not set".This occurs only when the listitems are added on another place then where the listview is created.
View 7 Repliesi have 2 forms. in the 2nd form im updating the dictionary. i hav listboxes in form1 as well as on form2, i need to update both the forms with the dictionary values and these values should be displayed in the listboxes everytime the program is run.i had tried updating the listboxes directly from the databses, but this is giving me problems of repetition, so im trying out using dictionary.
View 2 RepliesI 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)
I have been making an rpg that i have been programing to be event driven, so the last step at this point is the items... i tryed using dictionary to store all the items but this kinda failed(Im not shure if dictionary is good idea for something like this any way). well i know how to hard code the items but i dont want to do this(Event Drivien is better). So any ideas on how i could store the items?
View 5 RepliesI run oxford dictionary exe but got error...This nothing to do with code programing.I just guess that someone there may know about this.
View 6 RepliesThis seems like it should be something very easy to do, but every time I approach this issue, I end up w/ solutions that feel "less than elegant" Here is my basic question: If I am looping through a dictionary that I have ordered in a particular way, within any given point in the loop how can I "peek" or get reference to a dictionary item 'x' places ahead of the current item without changing the current enumerator? For instance:
Dim tempDictionary = New Dictionary(Of String, String)
tempDictionary.Add("TestName1", "TestValue1")
tempDictionary.Add("TestName2", "TestValue2")
tempDictionary.Add("TestName3", "TestValue3")
[code]....
I am updating a legacy application, and it was reading a dll from another project for a Dictionary(of Guid, String) of items and using them.
The requirements have changed, and the method that was returning the Dictionary is now returning an IList.
This is the odd behavior of this; the intellisense is not throwing a cast error, nor is the compiler. It does not throw an error until runtime when it tries to set the Dictionary to the IList.
Example:
Dim someDictionary As Dictionary(Of Integer, String) = New Dictionary(Of Integer, String)
Dim someList As IList(Of Integer)
someDictionary = someList
why the compiler is not catching this?
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 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?
I'm learning how to add items from a list box to a combo box. I'm trying to follow what's going on in the function loop and comparing a boolean and selected index. I can see that it's comparing the item chosen to each item already in the combo box to make sure that it's not already there. If function finds that it's not in the list it sends back that it is true that the item is not in the list.
It then continues to the statement that adds item to the list. The code for the double click event is working fine and items are getting added to combo box. However, the code for the add button isn't functional. I'm not seeing why it doesn't work? I coded out the original code, and replaced with something I thought might work but it still isn't functional. [Code]
The GUI below shows the same product I inputted. If I inputted the same product and a new Quantity inputted, it will add to the current Quantity inputted. Same goes to the Total Amount will change.
View 12 Replieshow can i add items in combo box from datasource.I m using ADODC.
View 4 Repliesi have listbox and i want to add three fields first name, middle name ,last name from customer details table to the listbox
View 1 RepliesIn VB.Net for an ASP project I was able to do the following:
Dim Item As ListItem While DataReader.Read Item = New ListItem Item.Text = DataReader.Item("CustomerName").ToString Item.Value = DataReader.Item("CustomerNumber").ToString Me.lstCustomers.Items.Add(Item) End While
However in a VB.Net Windows Project it won't let me duplicate this.
I need to display the CustomerName but return the CustomerNumber of the selected customer
I am also adding the items in code because they are changing based on changing values.
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Mod Edit: Please use code tags when posting your code. Code tags are used like so =>
in this : I have a button (ADD), a TextBox & a ListBox. Here's what I want, when I write words in TextBox and when I click on Button ADD, it is saved & added in List1
View 1 RepliesMaybe someone here can shed some light. I created a Windows Mobile application with a ListView control. I want to add items to this ListView.
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I am trying to create a program that allows the user to add a series of items to 4 different user collection settings.here's what i have Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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I keep getting an "Object reference not set to an instance of an object." exception. What am I doing wrong?
Is it possible to add items (e.g. a search bar, some text, a button...) to the title bar of a form? Something like the search bar in the image below:Is that possible to do with Visual Studio.NET 2008?
View 11 RepliesI am trying to create a visio flow chart with visual basic 2005 but I keep running into the same problem. I have added a reference to the Microsoft Visio type Library, but when I try to Declare a variable as a Visio.Application of Visio.Document I get an error "Visio.Application not defined" It seems as if adding the COM reference to the Visio Type Library has no effect. Is there some setup that I am missing?
View 7 RepliesI want to check if an items exists on my pseudo random listbox before adding a newone if the number already exists i need to know before duplicating it.
View 10 RepliesI Need A Code To Add A List Of Items To A Combobox. Every Item Is Listed In One Textbox,
View 7 RepliesI 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 Repliesthe code to use to add an accumulator so I can total up the items in my shopping cart?
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i am having 11 comboboxes and 11 tabpages in 1 tabcontrol each tab page having one combobox.i kept the name of combobox like combobox1,combobox2,combobox3.....and so on also there are other comboboxes in tabpages but they are of different name i had also kept the tag property of combobox from 0 to11 for each one now what i want to do is add the same item in all comboboxes for that i wrote code like:-
dim combos() as string=new string("A","B","C"....)
dim tp as tabpage
dim cnt as combobox
for each tp in me.tabcontrol1
[code]....
but this displays an error syntax like:"expression is of type System.windows.form.tabcontrol,which is not a collection type." i just want to add same items in combobox of each tabpage ..
