Populate A TreeNodes Collection?
Feb 4, 2010populate a TreeView Nodes Collection.I have a table (Employee) which has an EmployeeId, EmployeeName and ManagerId columns.
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Populate Listbox With Collection?
Aug 31, 2011I have a class with a collection of objects of type clsCDImage
clsAllCDs:
Imports System.Data.OleDb
Public Class clsImages
Private mAllCDimages As New Collection
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Populate A List Collection Using Methods?
Jan 10, 2012If I run my web service code, it generates a serialized XML with only one level, that is,ParentElement and ChildElement. My goal is to make it a multiple XML levels that even grandChild will show, as the sample output below. How can I achieve this using List ollection looping. Do I need to create several functions that returns List objects for each column of the dataset I have?
public List<MyClassEntity> ExtractEmployee(...params here...)
{
...SQL CONNECTION HERE AND SP TO RUN THE QUERY...
[code].....
WinForm - How To Populate DataGrid Control From Collection
Sep 1, 2011I have a list of Active Directory entries (computer names) as a Collection data type. How can I add the computer entries and the pertinent columns to the DataGrid control on my WinForm? I have borrowed this code from some web site to add the list of computer to the pcList which is a Collection type.
pcList.Add(dirSearchResults.GetDirectoryEntry().Name.ToString())
Populate A Listbox Collection From An Access Database Column?
Oct 24, 2010I would like to populat the Listbox collection from a column from a Access database I already created the name of the collection as collections. I can autocomplete/Suggest a Textbox with no issues.[code]
View 2 RepliesLoad Event Of Form To Populate Autocomplete String Collection?
May 26, 2010I am using the following code in the load event of my form to populate autocomplete string collection but it gives me DBNULL error. Is there any other workaround where it skips DBnull values?
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Forms :: Treenodes Saved In Database?
Feb 2, 2009I have this 4 tables. My problem is I have to save the treeNodes in the 4 tables. How can I determine that a specific treenode will be save in one specific table?
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User-Created TreeNodes With Bound String?
Feb 6, 2010I'm trying to create a function-scripter like program. There is a button, a treeview, and 2 textbox's. TextBox1 is where you enter the name you want to give you're function, and TextBox2 is where you input the actual script of the function you are creating. When you press the button, it creates a Treenode in the treeview with the name of what the user put in Textbox1. how do I bind whatever was in Textbox2 to THAT Treenode?
View 1 RepliesDerived Treeview Using Derived Treenodes
Dec 25, 2009I do have a customized treeView which inherits from treeview and uses customized treenodes which inherit from treenode. It works, but each inherited method of the treeview using a treenode as a parameter forces me to do an explizit cast from treenode to my customized treenode to access the additional functionalitiy of my treenode class.
Is there a general way to avoid explizit casting all day long? E.g. telling my customized treeview that all it's properties, mehthods, etc. from now on are working with my customized treenodes instead the general treenode as default?
Turning off option strict is not an option because I want to keep this. Overriding each method, etc. is to cumbersome.
.net - Storing Subcollections (filtered Versions Of The Main Collection) Inside The Collection As Cache?
Jan 15, 2010Is it good practice to store sub-collections of item X inside a parent collection of item X for caching 'filter-queries' which are performed on the parent collection? (They won't be used together (as in color AND type).) Or is it also ok to just Loop over the collection and return the correct entities in a temporary collection?
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C# - Edit List Collection : Error Note Collection Was Modified - Enumeration Operation May Not Execute?
Sep 7, 2011I have the following classes:
Product, Service and OrderItem
Product and Service must inherit OrderItem. So basically I want to store OrderItem object in my shopping cart and these object are store in a list.
Public MustInherit Class OrderItem
Private m_enuItemType As TypeOfItem = TypeOfItem.None
Private m_strUserID As Integer[code].....
Make A Custom Collection That Take Advantage Of The Collection Editor?
Feb 8, 2010I have been researching for a couple of days now and to no avail. Does Anyone know how to make a custom collection that take advantage of the collection editor? I would like to be able to have 3 Color Values, 1 Boolean and 1 String.
View 15 Replies.net - Collection Initializes For Read-only Collection Properties?
Jul 25, 2011I'm trying to support Basic.NET on my framework so I'm trying to convert C# 4 code to Basic.NET 10. Microsoft is committed to "co-evolve" these two but I'm having a problem with collection initialization... I found that I can initialize a collection much like in C#:
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.net - Search The Collection Of A Collection In LINQ Where Clause?
Apr 15, 2009I've got the following ADO.NET Entity Framework Entity Data Model:I want to find all the Policyholders with both a Service of a given Id and also a Keyword of a given Status.
This LINQ Does Not Work:
Dim ServicesId As Integer = ...
Dim KeywordStatus As Integer = ...
Dim FoundPolicyholders = From p As Policyholder In db.PolicyholderSet.Include("Keywords").Include("Services") _
Where p.Services.Id = ServicesId _
And p.Keywords.Status = KeywordStatus _
Select p
The Where clause cannot search the p.Services and p.Keywords EntityCollections in that way.
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Accessing And Adding Items To A Collection That Is In A Collection?
Apr 6, 2012currently in my application I have a Global Collection that is a Collection of Collections.Currently I am trying to add items/ elements to one of the child collections of the Global Collection but I am unable to use the collections methods of the child.When I assign a variable to the child collection and return the collection it is just an object with the collection inside.
Ex:
Dim GlobalCollection as New Collection
Dim ChildCollection1 as New Collection
Dim tempCurrentCollection[code]......
Collection Index Must Be In The Range 1 To The Size Of The Collection?
Dec 17, 2009I've been working with a CMS called InsiteCreations 2008. I'm running into an error I just can't wrap my head around. I would even be willing to compensate anyone a small amount over paypal, for a solution. The error is rare in occurance, and appears when clicking about 3-4% of links to other pages within our CMS.The full code page is quite large, but there seems to be only one function associated with the error. The error also only appears when not logged into the CMS. If logged into the CMS, clicking the link simply displays the page as normal. I have already checked permissions on the page from the CMS admin console, and it is public.
The error message is as follows:
Server Error in '/' Application.Collection index must be in the range 1 to the size of the collection.
Description:
An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
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Search The Collection Of A Collection In LINQ Where Clause?
Apr 15, 2011search the collection of a collection in my LINQ Where clause?
View 11 Replies.NET LINQ - Count Of Collection Within Collection?
Apr 14, 2011Take the following scenario:
Public Class Store
Public Overridable Property Areas As List(Of Area)
End Class
Public Class Area
[code]....
What's the quickest way to get a total count of shelves for a store? I.e. for a store I get the total count of areas by using Areas.Count Or will I need to loop through each area and tally the count of shelves?
Asp.net - Add Controls To A Collection And Update From Collection
Mar 25, 2011I have an ASP.NET app with lots of textboxes all over the page that need updating at various points through program execution. These textboxes actually belong to a certain class, so for easy updating I thought I could create a Dictionary(Of string, object) and add the control.ID and the control to it and then for updating do something like this:
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C# - VB Collection - Convert To A Modern Collection?
Jun 26, 2012I need to convert a VB Collection to a modern one, like Dictionary or Hashtable. For my approach, I need the Collection's KEYS. Googling tells me that it's impossible. Re-writing the entire application using new collections is not an option as the application is really old and large (converted from VB6 to VB.Net).Using the old Collection also is not good - as there are new components in development.Converting a - for example - Hashtable to Collection works:
using VBCollection = Microsoft.VisualBasic.Collection;
public static VBCollection ToVBCollection(this Hashtable table)
{
[code]....
Collection Of Lines - Using The Collection.contains?
Aug 12, 2009I have a collection of lines and as i loop through through the collection, i need to see if it aleady contains a certain line; however, the contains method wants a string and i have stored lines, so how can i use this method to see if my line is already in the collection so i don't place it in there twice?
View 7 RepliesPopulate Combobox With Database, Select To Populate Second Combobox?
Jan 27, 2011I need to pull from an access database to populate a combobox. Then from there I need to have a second combo box populated depending on the selection in the first box. My thought of an example would be a website that is setup for selecting car make, modle,year...can that be done in VB?
View 1 RepliesPrint To A Collection() Then Prompt To Print The Collection?
Aug 4, 2011Is it possible to print to a collection(), then prompt to print the collection?
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C# - .NET Collection Only In VB?
May 31, 2012Why is the Collection in the Microsoft.VisualBasic library? Why is it not in a more general location. Is there a reason Microsoft "hid" it from C#?
View 3 RepliesUse Value From A Collection?
May 29, 2012What I'm trying to do is get the value from a collection. While debugging I can see that the value from my collection is exactly what I want.
This line contains the value I want: Groups.Add(dn.Substring((equalsIndex + 1), (commaIndex - equalsIndex) - 1))
All I'm trying to do is export all the values to a textbox, and I can't seem to figure out how I can use it.
Below is just some more of the code I'm working with.
The property of the line is {Microsoft.VisualBasic.Collection.KeyValuePair} the key has no data, but the value has what I need.
Dim equalsIndex As String
Dim commaIndex As String
For i As Integer = 0 To propCount - 1
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.net - Add XElements To A Collection?
Oct 21, 2010I am populating an XML structure (using VB.NET) to pass to a web service. Here is how one piece of the structure is filled, and the rest of the structure is filled in a similar manner:
Private Shared Function GetSpecialties(ByVal specialties As System.Data.Linq.EntitySet(Of Provider.provider_specialty)) As XElement
Return _
New XElement( _
[code]....
Some pieces of the structure can contain up to 30 elements. Each record takes about .1 seconds to create, and it needs to create about 35,000 records, so the whole process takes about an hour.Is there a quicker way to fill an XML structure like this?
Add A Structure To A Collection?
Sep 18, 2011Recently I found that I'm not able to instantiate a structure for an array:
Dim mObjectLists() As New objectLayout
Ok, fair but It's an easy way to store a bunch of data in an array instead define a class. And after that I tried to define this:
Dim mObjectLists() As Collection
And add structures to the collection. But it says you should instantiate the reference object first. I searched about creating own Collection based on the base collection class but I think It's wasting time to write a code with class inheritance instead the first sample.
Add Timers To A Collection?
Jul 19, 2010how can I place all timers on a form into a collection
View 2 RepliesASP.NET / VB Iterate Through Collection
Jul 7, 2010[This is a simplified example] I have a collection ("myCollection") in which exists three entries: ("hello", "goodbye", "welcome"). I want to iterate through the collection and if in the collection there is the entry "welcome" I want to take one action, if that entry doesn't exist I want to do something else. Like this (pseudo):
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Bug In Collection Class VB?
Aug 16, 2009The following code creates a Collection where every Item is assigned a value equal to the last item added. At the end of adding for example seven items all the entries are identical to the last one added, although each has the correct key
The parameter passed to the function - aCOA() - is a comma delimited string of three strings.
The code is as follows
Public Function myCOA(ByVal aCOA() As String)
Dim thisCOA As New Collection
Dim keyCOA As String
[Code]....
Is this a bug in the code or in the Collection Class. I have traced the operation of the code and all seems OK until the second entry is added at which time the first entry Item get the same value as the second entry Item and so on.