Vb 2008 List Box Limit?
Apr 29, 2011i have 3 list boxes, 2 for selection one displays selection. i want a limit on input in lstbox3. i cant figure the right syntax etc. if lstbox3.count > 2 then is not accepted.
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Forms :: How Limit A List Box
May 20, 2011how do u actually limit a listbox to say 10 items
View 1 RepliesGenerics - How To Limit Size Of List
Mar 24, 2009I am trying to limit the size of my generic list so that after it contains a certain amount of values it wont add any more. I am trying to do this using the Capacity property of the List object but this does not seem to work.
Dim slotDates As New List(Of Date)
slotDates.Capacity = 7
How would people advice limiting the size of a list? I am trying to avoid doing a statement to check the size after an object is added.
Limit To The Maximum Amount A List(Of T) Can Hold?
Aug 3, 2009Is there a limit to the maximum amount a List(Of T) can hold? I need to know because I have a program that could potentially wind up in a really large loop that would add over 200 or so items to a list at one time.
MSDN search didn't really tell me much, but I'm in a rush at the moment, and was just wondering.
Limit User By Selecting 3 Three Items From Check List Box
Dec 30, 2008i have a check list box. i want the user to limit, selecting maximum of three items from the checklistbox. if user select more than that i want a msgbox to prompt.
View 4 RepliesSql Server - Linq - Limit List To 1 Row Per Unique Values Based On Value (minimum) Of Single Field
May 3, 2012I have a stored procedure (I cannot edit) that I am calling via linq.
The stored procedure returns values (more complex but important data below):
Customer Stock Item Date Price Priority Qty
--------------------------------------------------------
CUST1 TAP 01-04-2012 £30 30 1 - 30
CUST1 TAP 05-04-2012 £33 30 1 - 30
CUST1 TAP 01-04-2012 £29 20 31 - 99
CUST1 TAP 01-04-2012 £28 10 1 - 30
I am trying to limit this list to rows which have unique Dates and unique quantities in LINQ. I want to remove items with the HIGHER priority leaving rows with unique dates and qty's.
I have tried several group by's using Max and order by's but have not been able to get a result.
Is there any way to do this via linq?
EDIT:
Managed to convert brad-rem's answer into VB.net.
Syntax below if anyone needs it:
returnlist = (From p In returnlist
Order By p.Qty Ascending, p.Priority
Group By AllGrp = p.Date, p.Qty Into g = Group
Select g.First).ToList
VS 2008 : Do Multiline Textboxes Have A Character Limit
May 6, 2009Do multiline textboxes have a character limit?Someone who was using my program said that he has some textfiles that are about 50 KB and when he goes to copy/paste that data into a multiline textbox, he only gets about 31.9KB of the data.My MaxLength property says 32767, which basically matches the 31.9 KB, however, most of what I read on the internet says Multiline Textboxes can hold unlimited characters and that MaxLength is actually ignored when a textbox is in multiline mode.
View 2 RepliesVS 2008 : Limit The User To Enter Only Certain Data In A Datagrid?
Mar 9, 2010How can i limit the user to enter only certain data in a datagrid. Lets say 0 - 9 only. When the user try's to enter any other char, it should stay 0
View 5 RepliesVS 2008 Deleteing + Adding A Limit " Labels "
Sep 21, 2010[code]...
Using The Code above how do i set a limit of labels i place in run time ALso How Do i delete The Labels at runtime
VS 2008 Student List Views - List Boxes And Data Fro Access DB Tables
Dec 30, 2010This is what I'm sure will be the first of many noob-ish questions from yours truly... I'm studying as a mature student for a Computing Degree (encompassing web design, hardware, programming and systems analysis). The programming seems to be my weak spot this year. I enjoyed C++ last year, doing basic console applications, but progamming visually with VB in Visual Studio 2008 I'm struggling!
[Code].....
VS 2008 Will Not Need To Update Each Component Variable Of Products List When Components List Changes
Sep 21, 2010I think (?) this is about object design, and perhaps about structural and/or creational patterns. But a bit hard to say when I only know a couple of patterns yet.[code]But... what if we INSTEAD want each Product instance only to (in some way) refer to one instance of a specific list of Components. So we wan't to save the products list to one file, and the components list to another file. Then would I build the objects the same way, or different? So let's then say we have now Class B as below. [code]
1. Will not need to update each component variable of the products list when the components list changes.
2. If the Product object shall be shown in a DataGridView, for editing properties, it seems easier to implement the selection of the component property.
Is this wrong approach? Is it suitable in some cases, and if so, when? Are there other solutions I perhaps am not aware of that would be appropriate? Is this about structural design patterns? and if so, can the alternatives above be catagorized to some pattern type? I don't really know exactly what I'm looking for.. But I think probably I'm looking to understand whether the object design will be determined by the way the objects are saved.. And if i shall save the objects by serializing to file, vs saving to a database, would I create the business objects differently?
VS 2008 - Fetch List Of Directoies From 1 Special Ftp Server Wich Does Not Support LIST Command
Jan 27, 2011I have a small problem i'm trying to fetch list of directoies from 1 special ftp server wich does not support LIST command i was try this code and it works for all ftp server i have try exept this special one :
'' Get the object used to communicate with the server.
'Dim request As FtpWebRequest = DirectCast(WebRequest.Create("ftp://" & txtFTPhost.Text), FtpWebRequest)
[code]...
I'm getting error 502 which means command is not supported and app crashed. I would just simple said leave it but i have try normal ftp clients like FlashFXp and it works just fine (i can see error in the log but it just pass it and show direcoties)
VS 2008 Declare A List(of T) (or List(of <anonymous Type>))?
Jan 7, 2010Ok i'm trying to declare a global list of type T (or is it <anonymous type>) i declare it in a module with something like Friend query As New List(of {whatever type i try}) the app takes some xml and parses it into a list but i need this list available to other classes and methods within the app, everything i have tried fails resulting in an error like Value of type 'System.Collections.Generic.List(Of <anonymous type>)' cannot be converted to 'System.Collections.Generic.List(Of {whatever type i try})'.
What would be the correct way to declare a list of this type? is there another way i could do this?
VS 2008 Search Item A (from A List Of X Items) In List B?
May 5, 2010i want to search item A (from a list of X items) in list B but i want to get the item not found example Search ITEM A in LIST B if not found then return a print....if found continue with ITEM B..and so on.
View 5 RepliesVS 2008 Displaying A List Within A List In A DataRepeater?
Feb 2, 2010Firstly i apologise for another topic on a subject i have created already but this is a slightly different question and not related to LINQ at all despite the fact the code uses LINQ (the linq works fine and creates a List(Of Test) where each 'Test' contains a List(Of TestList) This data could be anything i guess and could come from an array or a database rather than xml literals.Ok, essentially i have a list which contains a list and i wish to display all the properties (List and list within this List) onto a DataRepeater Control. I have developed a testbed to get this working so i can implement it into my main application. Firstly I'll show the current code and how to construct the form and after that i will explain what i have tried and what i have had happen from these trials over the last week.
Public Class Form1
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[code].....
VS 2008 List Box : List Only The Image It Self?
Jan 19, 2010i got my list box working.but it lists the path and the name..ist it possible list only the image it self?
Imports System.IO
Public Class Form3
Private Sub FindFiles_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FindFiles.Click
[code]....
Db Row Limit For Adodb?
Jan 23, 2010is there anyway to limit the rows selected in adodb?i had something like this
vb.net
Dim command As New OleDb.OleDbCommand("select*from Table order by Col1 limit 5", connection)
How To Limit Bandwidth Using Ftp
Feb 25, 2010how to limit Bandwidth using ftp
View 1 RepliesTextbox Has A Limit?
Jan 25, 2010does textbox has a limit because I added a (very long) code and I couldn't paste further..What can I do make it bigger? I mean bigger of capacity.
View 4 RepliesAsp.net - .net Breadcrumb Navigation Limit?
Mar 26, 2011Im currently trying to set up breadcrumbs on my site, Ive tried two different approaches and the max I have seem to get is only 3 levels on the breadcrumbs. Is there a limit to it?
Home> Hello World > Good Bye Home> World > Good Bye > Forever E.g. I never seem to be able to get Forever to show on the breadcrumb. Is there a limit?
C# - Is There A Limit For System.IO.FileShare
Aug 5, 2011I want to build my own flat file database. Here is how I access the flat file database
Dim fs As New System.IO.FileStream("C:MyDb.txt", IO.FileMode.Open, IO.FileAccess.Read, IO.FileShare.Read)
Dim sr As New System.IO.StreamReader(fs)
Is there a limit imposed by .Net for the usage of System.IO.FileShare.Read, System.IO.FileShare.Write and System.IO.FileShare.ReadWrite when dealing with a file?
I mean is that .Net capable to support thousands of users using file stream and stream reader objects with System.IO.FileShare.Read to access a single file concurrently?
Excel 2003 Row Limit?
Sep 28, 2005Excel 2003 Row Limit?
View 2 RepliesHow To Limit Folder Browser
Jul 10, 2009Is it possible to open the folder browser (window explorer) in such a way that only one specified folder content is displayed and just the content of that folder (folders or files) can be modified?
View 2 RepliesHow To Limit Listbox Selection
Nov 19, 2009Is there any way to limit the listbox selection to just 2 I have done this code
Protected Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
If ListBox1.GetSelectedIndices.Length > 3 Then
[code]....
How To Limit Results Of ComboBox
May 28, 2011I have a simple database comprised of one table (called "Plants") and one form (called "Plants To Use"). In the "Plant To Use" form there are two fields: Plant ID (a nine-digit ID) and Paired Plant ID (a combo box pulling all of the Plant IDs). I want to limit the Plant IDs in the combo box to only IDs that match the 3rd, 4th and 5th digits of the "Plant ID" on the form. For example, if I pull up the record of 99874234 on the "Plant To Use" form I want my combo box to list all other Plant IDs that have 874 in the 3rd, 4th and 5th digit (e.g., 778746320, etc.).
View 6 RepliesHow To Limit The Times A Character Is Used
Feb 2, 2010how can i limit the use of a character? Specifically "." period.
View 3 RepliesHow To Set A Limit Of Characters In Textbox
Jun 8, 2011I wanted to set a maximum limit of characters of textbox in the properties but i can't find where it is located unlike in vb 6.0 you can set the characters in maxlength...
View 6 RepliesLimit A TextBox To Have Only 4 Digits?
May 22, 2009I have this textbox and i want to limit the number of digets able to be entered to 4.
View 4 RepliesLimit A Textbox To Only 20 Characters?
Sep 4, 2009i would like to limit a textbox input to 20 characters and only one line to input the characters.. i really have no idea where to start. i did see some forum threads, except they're for different options other than the option i need.. trujade.so much work to do and so many choices to choose from...
View 5 RepliesLimit A Variable Length
Jun 9, 2011I have an integer that is storing the result of a division between two numbers. I usually receive an result that looks like 5,2496874654. How can I limit the variable length so it looks more 'approximated', like 5,25?
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