I am trying to sort items in a list box. It sorts all the numbers but one and i can't figure out why. I will post my code below. The last number is on the bottom when it is entered into the list box every time regardless of its size.
Dim sortformat As String = "{0,-10}{1,12}"
Dim w As String
Dim y As String
For x = 0 To 7
[code]....
i used the sorting method at msdn but it isnt nice. it sorts in string format like 1,11,12,2,21,23,3,31,32 etc. is there any other sorting method.
View 3 RepliesHow can I improve this bit below to make the items in the TreeView to sort faster or something totally different to sort them easier?
[Code]...
I have a MyObject; myObjects as List(Of MyObject) and a delegate Comparison(Of MyObject) that uses a lot of comparison functions (ByA, ByB, ByC etc) Ã la:
Shared Function CompareMyObjectsByName(x As MyObject, y As MyObject) As Integer
Return x.Name.CompareTo(y.Name)
End Function
[Code].....
I have a List(Of T) storing a list of Custom classes called Advertisement. Each advertisement contains 3 properties, Year, Make and Model. I need to sort the list By Year, then by Make and then by Model. I have a property in the Advertisement class called Vehicle which returns a formatted string with the Year Make Model like 2007 Toyota Tacoma and ive been sorting on that but its not working how I thought it would. Basically I want to sort the list by Year (decending; lowest year first) then sort by the Make and Model (in alphabetical order) Is that even possible? Here is the code ive been using.
[Code]...
I'm having a bit of a 'brain doner' moment here
I have a list of Objects. Each of these Objects contains a list of other Objects (pseudo code) :-
Private Structure Object1
dim Name as string
dim ListOfObject2 as List(Of Object2)
[Code]....
I need to sort the list of Object1 by the Value in Object2. I have a comparison class which sorts Object2 by its Value nicely.
What would be the fastest way to sort a list that contains a list of objects, based upon another list? An example follows:Say I have multiple lists of employees. Each individual list has a common property value, say "Department". So I have a list of employees, in one list they all have the department string value of "Sales". In another list all the objects have a department value of "Finance". These lists of employees are then contained in a list which holds them all.
I have a second list, which should drives the sort order of the employee lists. The second list simply contains a list of strings like, "Finance", "Sales", "IT" and so on. I'd like my lists of customers to be sorted in the order of "Finance", "Sales", etc.I'm using VB.NET in .NET 2.0
I add strings (items) dynamically to a ToolStripItemCollection by:
Dim onClickHandler As System.EventHandler = New System.EventHandler(AddressOf Symbol_Click)
Dim item As New ToolStripMenuItem(newSymbol, Nothing, onClickHandler)
SomeToolStripMenuItem.DropDownItems.Add(item)
So the items are not added in one go, but one-by-one based on external triggers throughout the program session. I would like to sort the drop-down-list every time I add a new item. What are my options to achieve that?
I have to import firstname,lastname from txt fiel to Listbox.Then on click of a sort button i want to sort items in list box based on lastname.If lastname is same then it should sort by firstname.[code]
View 8 Repliesi am trying to sort the items in a collection(of T), by the start date. but i do not know how to do it. i do know that we have to implement list properties.
View 2 RepliesI am trying to sort a treeview, base nodes, which is the first base set you see before you click any + sign's I am trying to sort by alphabetical order, but, for the nodes inside each + view of the tree's I want to sort by number order, the number is currently set to the tag as text version of the number. Anyways, for the nodes in the + view's I need it to be able to skip over numbers if not every number in sequential order is there, so if number 4 is missing for example, still sort 1,2,3,5,6. My full code is pretty big but just retrieving items to display is random & I just add items as they come in, now they don't come fast or even when your not expecting new things to appear so it should not matter how it works really as it wont be updating as they are using the treeview.
View 15 RepliesHow can I sort the items of my SelectedLiostBox?[code]...
View 3 RepliesI have to import firstname,lastname from txt fiel to Listbox.Then on click of a sort button i want to sort items in list box based on lastname.If lastname is same then it should sort by firstname.How do i do that? can someone tell me the code.[code]...
View 2 RepliesI have a question about efficient implementation. Lets say I have two arrays:
One array is all possible items in a house: Table, Chair, TV, Fireplace, Bed
The other is an array of items in a particular house: Table, TV, Bed
I also have two list boxes:
1. listbox for items in the house - the "HAS" list box
2. listbox items not in the house - the "NEEDS" list box
I need to list the items already in the house in the "HAS" list box as well as the items that are NOT in the house in the "NEEDS" list box. It seems to me that nested "For each" loops would be a start to solving this problem but I am not exactly sure which case needs to be nested.
Let me preface this by saying that I'm very much a novice coder. I'm currently working on a small project to practice with Visual Basic and have experienced some issues during my save and load process using text files. I think I can solve the issue by changing the way my text file is initially saved. I want to see if I can sort the items and change the order in which they are written to the text file based of the value in one of the lines.[code]....
View 5 Repliesif there is any method in vb.net to sort a listbox by item length e.gthere is a property in listbox to sort items alphabetically
View 2 RepliesHow would you sort the items only after the line but in the same listbox?
View 3 RepliesHow can i sort my Items in a Listbox by Letter.
View 1 Repliesmy app reads 40000 lines of data fom a csv file into a two dimentional array of 30 items and i need to sort it by one of the items that is a date. is there a way to do this in Vb.
something like this
array1(40000,1) = name
array1(40000,2) = city
.
.
array1(40000,30) =date
How would one code a button so upon cliking it items in listbox would sort either ascending or descending (depends on the button clicked). It mustn't be done with built-in Sort() but with a for loop for example. Tried to pseudo-code the solution to the problem, went as far as "store each listbox item in an array with a for loop".
View 1 RepliesI am writing an application using Visual Basic Express 2008 and I need the right and the left mouse click to both act like the left mouse click. That is the right mouse click should not display a menu of any sort and be able to select items just as the left mouse click.
View 3 RepliesI have this XML file from which I'm grabbing all the data:
<?xml version="1.0" encoding="utf-8"?>
<Tabel>
<Member>
[code].....
I have a listview control that I have a multitude of files displayed, in addition there are 6 columns in the listview that shows information about the file in question.
I have gotten this far, but my question is this: how do I allow the user to sort the listview by clicking on the column headers. Like one can do in list view in a Windows window?
How to sort items in ListView by column bound to an Observable Collection ?I've looked all over the place and I can't find anything easy enough or simple on this.
View 2 RepliesI am making some kind of calendar where I can add tasks, so I can easily organise my tasks. For it to complete, I have 3 things I can't figure out how to do it:
1. When I launch the program, I want the items in my listbox to be sorted alphabeticly.
2. I want to save the items in the listbox, so if I close the program and reopen it the items are still saved in the listbox.
3. The items in the listbox all start with a date, fe. "13-4" for today. If that date already passed I want that item to be deleted.
i have a list of datarows. each row is having mutiple columns like userid,date,flag,etc.i want to sort the based on date. how can i do that ?
my code is:
Dim
listOfRows As
New List(Of
DataRow)()
[code]....
i want to sort the listOfRows in ascending order of date which is a column in a row?
i wrote the following code to sort a list of word:
Public Class Sort_DT
Public Sub Words(ByVal index As Short, ByVal Incoming(,,) As String, ByVal Level As Integer)
[code]....
when words sorted, application used over 300 MB of memory;
I'm trying to sort an arraylist the code is below.
the value.sort() is returning the following error - Failed to compare two elements in the array. At least one object must implement IComparable."[code]...
I'm looping all the properties in an object via reflection:
For Each p As PropertyInfo In values.[GetType]().GetProperties()
If p.CanRead Then
'Do stuff
End If
Next
how to determine whether the property in question is a generic List(Of T)? If it is I need to loop the list itself.
I've experimented with GetType and TypeOf but have not managed to get anything working.
To clarify, I want to keep this generic. I do not want to specify the type of T, I need to loop the list items and call the ToString method on each item. T could be one of a number of different types (application specific reference types). Is it possible to do this without specifying types?
(VB.NET 2005 with .Net 2.0)
This program is supposed to allow the user to check items in a checked list box. If the item is checked, it goes into the Completed List Box on the right. The program then adds the unchecked items to the Pending list box on the left. I keep getting placement values (e.g. O,1,2) instead of the strings (e.g. "Key Returned") in the list box results (see photo attached)
Public Class frmCheckOut
Dim i As Integer
Dim cleaning As String = "Cleaning Inspection"
Dim damage As String = "Damage Repaired"
[code].....