.net - Quick Check Of All Sub Items In A List?

Jul 19, 2010

I have a list with a boolean value as one of the properties. I need to check if every one of these is true. Now normally LINQ would give a nice clean answer here, but as I am using .NET 2.0 I can't use that.If there a nicer way to do this or am I going to have to do a for each loop and break out on finding a false?

Edit:Seems I could have been a bit clearer. I have an object in a list (eg List (Of MyObject)). There is a boolean property on this object called Processed.I need to check that all objects in the list are processed.So in LINQ I'd do:if (from o in list where o.processed = false select o).count = 0 then....

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.net - Check/DeCheck All Items In Check-list Box?

Jul 11, 2011

A couple of questions about check list boxes:

How to check/decheck all the item in the list How do you copy or delete all checked items in the list

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C# - Check If All Items Are The Same In A List?

Mar 15, 2011

I have a List(Of DateTime) items. How can I check if all the items are the same with a LINQ query? there could be 1, 2, 20, 50 or 100 items in the list.

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Check List Box, Clearing And Getting Selected Items?

May 12, 2011

how to get the selected items from a check list box...i have 7 items in it, need to see which ones are selected...and how to clear the checks from the list box?

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Values Of All Checked Items In Check List Box?

Apr 5, 2010

How can I get all the selected values from a check list box? I tried using the name of the check list box (clbLike) but it only returns the first value checked. How can I return all values checked?

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Gather Up Check List Items And Then Open New Window?

Oct 4, 2009

I am developing a VB web app in VS2005, and I can't figure how to do somehting. Can anyone suggest a way to gather up (non - postbacked) checked items (checkboxlist) on a web form (and of course write them to a file), and then start the report using a new window? If you suggest using htmlwindow.opennew, then I need to know what the constructor looks like for that. Can I get btnReport.click in my aspx.vb code to execute before it is sent to the report form by the "OnClientClick" asp command?

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Limit User By Selecting 3 Three Items From Check List Box

Dec 30, 2008

i 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.

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VS 2010 Program To Check The Number Of Items In A List Box?

Jul 6, 2010

I want the program to check the number of items in a list box, then send use that number to form a FOR loop and send each to the serial port individually. It actually sends everything, but the program always crashes after the last one saying that the sdprintcount variable is an invalid number for the index. I don't get it as this happens no matter how many items are in the list, and it always crashes on the last one. It sends it, but then it says the index number is invalid.

*********************************
Dim sdmods As Integer
Dim sdmodsp As String
sdmods = sandwichmodlist.Items.Count

[code]....

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Checking Multiple Items In A Check List Box By Variable Values?

Oct 31, 2011

I've never really used the Check List Box in the past, however, for the recent program I am developing, I am using this control rather than individual check boxes scattered across the form.Anyway, I want to be able to program through code which items get checked in this checked list box. Specifically, I have a variable that contains the text of each check box that I want checked.With a normal check box, I can simply say:

Dim strNames As String
strNames = "John Doe, Mark Johnson, Mike Brown, Cindy Smith"
If strNames.ToString.Contains("Mike Brown") Then[code]....

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VS 2010 - Quick Mass Editing Of Items In TreeView

Jun 1, 2011

I am currently editing a big mass of items, which is taking very long to do. Even loading up my Treeview from a file is faster. What I currently have is this:
vb.net
Private Sub IncrementTreeviewNodes(ByVal Position As Integer)
While (Position < treeMeshList.Nodes.Count())
treeMeshList.Nodes(Position).Text = "Mesh #" + Position.ToString
Position += 1
[Code] .....

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Quick Find And Quick Replace Dialog Windows For 2008 IDE?

Dec 7, 2010

I am developing a VB application using the Visual Studio 2008 IDE. I was making changes to my code using the Quick Replace function when the dialog window stopped displaying. Selection of Quick Find or Quick Replace from the Edit menu, as well as use of shortcut keys (CTL+F and CTL+H) all have the same affect: the IDE loses focus but no dialog windows display. Is this a known issue with an available fix?

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Quick Domain Up Down - End Of Sub Is Make It Go To The Next Instance In The List

Jan 19, 2010

All i want to do at the end of my sub is make it go to the next instance in the list

say if its on A (the first instance) i do my thing then it rolls to the next instance B and so on

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Determine If Property Is Generic List<of T> Via Reflection And Loop List Items

Oct 1, 2009

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)

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Placing Selected/unselected Items In Checked List Box Into List Boxes?

Mar 16, 2011

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].....

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Shuffling Items Inside A Movie List / Need To Delete Half List

May 16, 2011

Another program I am working on for fun, I am basically shuffling a list inside a listbox, what I want to do is delete the rest but not sure how to go through with that. At the moment I have this: [code] Just contains the code, declarations outside weren't included.So anyway, once clicked, it will call on the function to basically shuffle in a for loop, I was wondering if I should (or how should) create another function and call it in the click button or have just a loop in the click button so it deletes half the list. What I am doing is I have 20 list of items, I want the program to shuffle the items and then deleting the lower 10, meaning, if I had 10 items and wanted 5 top, I'd want: 0, 1, 2, 3, 4 and deleting 5, 6, 7, 8, 9.

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List.count While Adding Items To The List Increments Returns 0

Jul 20, 2011

I am attempting to read the results from a SQL query into a List(Of) and I can see the List.count while adding items to the List increments, however in another part of my code when I am attempting to read the List the List.Count returns 0. My List is as follows:

[Code]...

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Dynamically Generate List Items To An Unordered List In ASP.NET?

Nov 27, 2009

I have an error panel that is subbed in to a page if an error goes wrong to gracefully handle and display errors.Currently, I am just appending the error messages to a string and pushing that to a label. If you have multiple errors, this gets messy.I'd like to push each error to a list item in a bulleted, unordered list.How can I dynamically generate, from a vb codebehind file, new list items inside of an undordered list element?

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Finding Items In One List That Aren't In A Second List Using Linq

Jan 25, 2011

I have two generic lists, named ListA and ListB. Both ListA and ListB could potentially have duplicate items. What I would like to do is use LINQ to grab the items in ListB that are not in ListA, but I'm unsure how to do so.

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VS 2008 Search Item A (from A List Of X Items) In List B?

May 5, 2010

i 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.

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VS 2010 Return Items In A List Before Returning The List?

May 23, 2012

That was probably bad title, but I'll illustrate what I'm trying to do. I have a method in a class that I need to call several times. The method returns a List(Of String). I'm just grabbing some information from a database.

VB.NET
Public Function GetTestList() As List(Of String)
Dim int As Integer = 0

[code]....

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Check List Box Style Radio Button List?

Oct 26, 2010

Is it possible to have a Radio button list, like we have a checked List box?Actually I want to load all the options from database to the list but do not want user to allow to check more than one item.

Also how to read it (say item 4 of the list) I want to store its value in the variable.

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Comparing An Item In A List Against Other Items In The Same List In .NET?

May 30, 2011

I have a List(Of MyObj), and I want to iterate through that list and compare each element to all other elements in the same list, excluding (if possible) the same element. I have a solution that works, but it's slow and uses double For loops. It may possibly have also summoned Cthulhu from his sleep. This below is a sanitized version of what I have:

Dim MyList As New List(Of MyObj)({Obj1, Obj2, Obj3, Obj4, Obj5, Obj6})
If MyList.Count > 0 Then
For i = 0 To (MyList.Count - 1) Step 1

[code]....

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Getting List Of Items Not In Parent List Using LINQ

Mar 28, 2011

I am writing app in vb.net

I have two variables one with list of RoomRate and other with list of RoomTypes.

We have RoomRates and RoomTypes linked with RoomTypeInfo variable insite the RoomRate.

So how do i find the RoomTypes which donot have the RoomRates Defined.

My Sample Code:

class RoomType
property UIN as integer
property Title as string
end class

[Code]......

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How To Test 1st List Box If It Has Items More Than Other List Box But By One Item

Nov 15, 2011

I want to know how to test the 1st list box if it has items more than the other list box but by one item, here is what i have: If lstInvisibleTv. Items.Count > lstInvisiblePc.Items.Count Then it works good if the lstInvisibleTv list box is greater than the other list box by one but it also works if it is greater the other one by one or more which I do not want. I want it to work just by one.

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VS 2005 Check Grid Items If Checked ListBox Items Checked?

Aug 21, 2009

Why is this code having the opposite effect? If It's checked in the checkedlistbox it's not check in my view, if it's not check in my checkedlistbox it is checked in the grid.

EDIT: More specifically. The CheckState.Checked is always the opposite. .Checked means it's not checked.

Private Sub CheckedListBox1_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles CheckedListBox1.ItemCheck
Try

[Code]....

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Program That Will Compare Array Of Grocery List Items Glist And Array Of Coupon Item List

May 27, 2012

I have a program that will compare an array of grocery list items glist and an array of coupon item clist.When I compare the two and if there is a match somewhere in the array I want to have a picturebox visible.When there is no match, I want the picture box not to be visible. [code] The code seems to work great until I come to the else statement.When the code finds a match it displays the picture box and the msgbox without error, but as soon as the message box is cleared, even though i've input it as an ELSE statement, the picturebox goes false again.Does anyone have any idea of how I can "hold" the picturebox to stay visible while the match between the arrays exists?

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Remove Items In One List From Another List?

May 2, 2012

i am writing a program that reads a excel report from accounting software with our weeks orders on... so basically the program reads a list of around 100 items which all works fine.I also have a database that holds info on each item, when the excel sheet is parsed the software checks to see if any new items have been added to the list that are not on the softwares database. this is where i am having the issue.I have two lists: ItemsOrdered & ExistsingItems.

All the items ordered this week are in ItemsOrdered and all the items not in the items in the database are in the ExistsingItems list. using these two lists how can i find items that are in ItemsOrdered but not in ExistsingItems.

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Check When There Are 2 Same Items In A Listbox?

Nov 27, 2010

I don't want that my webbrowser go in the same website two times.[code]...

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Remove Duplicate Items But Leave At Least One Of The Duplicate Items In The List?

Mar 27, 2012

I have a List object and I want to remove the duplicated items but leaving at least one of the duplicated items in the list;I wrote something like this however I would optimize this code for better performance, is there something faster?

Const chars As String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
Dim rnd As New Random()
Dim mylist As List(Of String) = Enumerable.Range(1, 100).Select(Function(i)

[code].....

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Check All Checkboxes Of Items In A Listview?

Mar 29, 2010

How can you check all the checkboxes of all the items in a listview?

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