Removing Multiple Selection From List Box?

Mar 19, 2009

How can I remove multiple Item selection from list box ?

Private Sub rf_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rf.Click
If Not (pb.Image Is Nothing) Then

[code].....

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Removing Multiple Items From A List Box At Once?

May 2, 2010

If I have 3 times selected and when I click "submit" for example I want all my selected items to be removed, but when I try to do this only my first selected item is removed.

ListBox.Items.Remove(ListBox.SelectedItems)

How do I remove all 3 items from the list box at the same time?

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Removing Multiple Selected Rows From DataGridView That Is Binded To List(Of T)?

Dec 8, 2011

I have a datagridview binded to a list of objects... I have a column named Selected containing a checkbox. When these checkboxes are checked and a button is clicked, I want those particular rows to be removed. I initially set it out to iterate through the grid's rows and RemoveAt(SelectedRowIndex) but of course when it removes an object from the List of objects at the selected row (IE Row 1, 4 and 6), the list indexes change and it fails to work properly when it goes to remove the next row since Row 4 is now row 3 in the list...? What is the best way to do this?

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Removing A Delimiter From The End Of A List?

Jun 28, 2009

I've been working on this program all week and I've been able to finally get it to work except for one problem. The program is suppose to parse strings from a text box to a list box and then from a list box to a text box using the users choice of delimiters. I can't seem to figure out how to get the last comma off the end of the list. ie cat,dog,elf,It seems it should be easy, but since I've worked on this program so long I believe I can't see the forest for the trees. I don't want for you to do my work for me.

[Code]...

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Removing Item From List?

May 10, 2011

My code is supposed to remove item from list but its not removing item.

[Code]...

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Removing Items From A List Box?

Jun 8, 2011

I have button that adds items to a list box and a button that removes it...the one that adds it works great but when i select an item to remove it doesn't remove it..i don't know if there's something wrong with the code or not..

Private Sub btn_Remove_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Remove.Click
list_MyOrder.Items.RemoveAt(list_MyOrder.SelectedIndex)
prices(list_MyOrder.SelectedIndex) = 0
MsgBox("Select any item to remove")
End Sub

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VS 2008 Removing Multiple Chars

Oct 17, 2009

I have a textfile called Set.txt and what I want to do is to remove all multiple chars in the file.[code]I figured this is possible to do either checking for double letters and running a loop or maybe some regex, but i would like to know what you think the best way of doing this is.

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Removing Item From TimeSpan List?

Sep 26, 2010

I'm trying to remove an item from a TimeSpan list but I need a TimeSpan for the index? If I use a List(Of String) it works fine if I use an integer for the index, but if I use List(Of TimeSpan) it wants a TimeSpan for the index. I have declared a variable like so:

vb
Dim TempTime, TimeRemover As List(Of TimeSpan)

but when I try to remove an item from the timespan it says it needs a Timespan and not an integer. Say I have:

vb
For x = 0 To 3TempTime.Remove(x)Next

That doesn't work, but if I have:

vb
For x = 0 To 3TempTime.Remove(TimeRemover)Next

It will work How can I just remove an item from a TimeSpan list?

EDIT: Figured it out, RemoveAt was what I was looking for.

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Removing Items From A List View?

Jan 31, 2010

I have a form with 2 listview's and I want to remove that items in the listview1 that area duplicated on the listview2.

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Removing Items From A List(Of T) Failing?

Dec 17, 2009

I have a generic list that I'm removing items out of using List.Remove(Object). I have been removing items but whenever I get to the fifth item I'm removing it fails and does not remove it from the list. It doesn't seem to matter what I'm removing but everytime I try to remove five items it fails on the fifth item.

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Removing URL From List In Text File

Nov 12, 2009

I am attempting to get my program to store its, in this case, a Url list in a text file. This should be relatively simple and so far it has been, writing to the document has been easy and it has all worked well, however, I have been trying to get my program to remove a url from this list too. To achieve this I have created a temporary text file, named 'FavouritesTemp.txt' and write the content of a listbox (with the target of the delete command removed from it) and then replace the old text document with the new one. But I keep getting an error from this - saying that a process is already accessing this file, even though I have just created it! I have attached a picture of my error and the code I am using underneath.

Code:
System.IO.File.Create(My.Settings.ProgramInfoStorePath & "FavouritesTemp.txt")
MsgBox("Created FavouritesTemp.txt")
Dim FavouritesWriter As New System.IO.StreamWriter(My.Settings.ProgramInfoStorePath & "FavouritesTemp.txt", True)
For Each Item In FavouritesListBox.Items
[Code] .....

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Toolbox List Removing And Adding?

Jul 26, 2011

i am a starter on VB(you can see that in the name),and i removed the RadioButton from the list.

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VS 2008 - Removing Item On The End From List Box

Aug 31, 2009

I have a button that when pressed I want it to remove all the ending urls that have ending with / just to remove / item on the end so it will live me a url with out / on the end if u know what I mean. [Code]

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VS 2010 - Removing Items From A List (of T) With For Each

Dec 14, 2010

Public Structure ReportOrderType
Public ReportName As String
Public ReportDate As Date
Public SaveFile As String
End Structure
[Code] ....

Basically, I have a list of reports. In one place they get ordered, and later on the program looks to see which ones have come back -- see if the .SaveFile exists on disk. If it exists, then that report gets processed, and then I want to remove that item from the list of reports-on-order. However, I get an error message back that by doing the .Remove(R), I've changed the list itself & things won't go well with the rest of the For Each loop, which makes some sense.

When I get to this routine, the list of ordered reports will be something from a couple of dozen or less, and some number of them (perhaps zero, perhaps all, probably a few) will exist & be processed & then should be removed from the list. How should I go about accomplishing this? This is my first time working with List(of t) as a Visual Basic tool; everything I've used in the past has been with arrays, and I can do this there.

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VS 2010 List (of T) Removing Items?

Mar 7, 2012

I have the following

Public itemArray As New List(Of ItemArrayStructure)
Public Structure ItemArrayStructure
Dim DisplayText As String
Dim Checked As Boolean
End Structure

If I know the DisplayText of an item in this array, how can I remove it?

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Forms :: Error In Removing Items From The List Box?

Oct 17, 2011

Imports System.Collections.Generic
Imports System.Net
Imports System.IO

[Code]...

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Forms :: Removing Items From Binding List?

May 24, 2011

have a binding list which i want to be able to add and remove items.This is the class im using

Friend Class ExecutableItem
Public Property Text() As String
Public Property Method() As Action

[code].....

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Removing Items From A List Box After Setting The DataSource

Sep 29, 2010

I have a small requirement and that is as follows:

I am populating a ListBox using stored procedures and the ListBox is populated as follows:

lstItems.DisplayMember = "emp_name"
lstItems.ValueMember = "login_id"
lstItems.DataSource = accessFunction.getEmployees

The ListBox gets populated correctly. After it is populated, i have a CommandButton and on the click event of the button, i want to remove selected items from the ListBox. So in the click event of the CommandButton, i have written the following code:

lstItems.Items.Remove(lstItems.SelectedItem)

After selecting an item from the ListBox and when i click the CommandButton, i get an error as "Items collection cannot be modified when the DataSource property is set".

how i can delete items from the ListBox.

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VS 2008 Removing Items From List Of Class?

Jun 12, 2010

I've searched on the Internet and I can't find a solution to this simple problem. I've also looked on Microsoft's MUCH improved MSDN site and haven't found a solution, so here it goes. I'm trying to remove an entry from a list of class and it doesn't get removed. Here's a sample of the code I'm trying: (I renamed the class and variable names to make it a simple example)

Dim lstClass As New List(Of TheClass)
Dim mClass As TheClass
I tried this first
mClass.filename = "The Entry to Delete"
lstClass.Remove(mClass)

[Code]...

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VS 2010 Error When Removing From List(Of String)

May 8, 2010

For Each s As String In list

If s.Contains("Hello") Then
list.Remove(s) 'ERROR Collection was modified; enumeration operation may not execute.
End If
Next

Why do i get that error?

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Multiple Combo Box Selection

Jan 7, 2010

I'm new to VB.NET and looking for some help with combo boxes. I was wondering if it is possible to link 2 combo boxes to each other based on user selection? [code]If the user selects Dept Name "Bakery" from the first combo box the second combo box should fill with the appropriate Section Name i.e. "Bread", "Cakes" etc.I am using VS2008 and the DB is SQL Server 2008. Both combo boxes are currently bound to the above Tables and displaying all Dept and Section Names.

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Adding And Removing Items From The List And Tree Views

Mar 10, 2009

I am trying to learn how to work with the different controls in Visual Studio for VB.Net in particular the List View and Tree Views. I don't have any code to show as I am not working on anything in particular just messing around with it to learn what the different controls do that weren't covered in my Intro to VB.Net class last semester.I would like a clearer explanation on how to actually use code for these controls. In particular adding and removing items from the List and Tree Views using code.

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Populating A Font List And Removing Specific Items?

Sep 23, 2009

I've gotten a listbox control to populate with a list of installed fonts, but I need to be able to click a button and remove the selected item from the listbox. How do I do this? Every time I try, an exception is thrown.

Here is the code:

Public Class Form1
Dim fonts as New Drawing.Text.InstalledFontCollection
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

[code]....

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Multiple Datagrids Filtering On Selection?

Mar 22, 2009

this is the wrong forum because I am quite new to this :S and I am actually unsure what this fits under. I am using Visual Studio 2008 windows form in .vb so I am taking a guess at it being Visual Basic 6.0Well the question is this. On a form I have 3 Datagrids. The first one shows information about a case including client name and ID. The second shows a table that contains all the jobs registered to the company by the clients. lient can have up to 8 Jobs. The third is a list of all case numbers that clients have

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Does Microsoft Access Allow Multiple Checkbox Selection?

May 22, 2009

where I want to use the Select All and Deselect All CheckBox. There is no Visual Studio installed there. They want everything in Access. Visual Basic is not installed, it is within the Access interface. Is there a way I can use VB code to have a Select All and Deselect All option. I dont want any code. Just want to know if it is possib

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Multiple Selection On A Checkboxlist To Filter A Datatable .net?

Feb 27, 2012

I have a datatable loaded from a database. I bind the datatable to a gridview on page_load. Now I want to filter the gridview by a user selection so I made a checkboxlist and wrote some code as follow at CheckBoxList1_SelectedIndexChanged

[Code]...

With this code above, it can filter if there is only one selection on the checkboxlist. I try to loop the checkboxlist myself but always ended up in errors. Hope someone can help me out to make this work.

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Update Table From Multiple Grid Selection?

May 1, 2009

I need to update a link Table with the data I select from multiple grids, the problem is only the last command statement takes effect, therefore I am only updating the link table from the last command statement, is there a way to update the link table with all the command statements?

Dim ConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|aop29.mdb"
Dim objConnection As New OleDb.OleDbConnection(ConnectionString)

[Code].....

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VS 2010 : Multiple Alternative Selection Structure?

Feb 19, 2012

I am enrolled in a college course using Visual Basic 2010 Express.My current assignment calls for the following:Create a small program that allows a user to enter the total amount of purchases for the purpose of calculating rewards points based on the purchase totals vs. their membership level of basic, standard and premium.The user selects their membership level via 3 radio buttons, basic, standard or premium.

The total of purchases and their rewards points depend on the membership level. Example, if you are a basic customer and your total purchase is under $75, you receive 5% in rewards points (70 x 0.95). Additionally, if the total is between $75 and $149.99, you receive 7.5% rewards.Here is what I have so far, but I am getting errors on the ElseIf statements:

If basicRadioButton.Checked = True And totalTextBox.Text < 75 Then rewards = total * 0.95
ElseIf basicRadioButton.Checked = True And totalTextBox.Text > 74 AndAlso totalTextBox.Text < 149.99 then rewards = total * 0.925
ElseIf basicRadioButton.Checked = True And totalTextBox.Text > 150 Then rewards = total * 0.9

[code]....

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Combo Box With [None] Or Blank At The Top Of The Selection List?

Jul 8, 2011

The combobox is bound via binding source to a table. How can I display the list of look up options while having the first option say [None} and if selected, clears the value from the list.

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Drop Down List Remember Selection

Mar 6, 2012

i have two pages.1.aspx and 2.aspx i have a drop down list on the first page and a back and sumbit button on the second page..If i make a selection in the drop down list and go the second page and then go the the first page again with the back button. the drop down list doesnt show the selection that i did.i tried the use "sessions" but didnt work, also tried postback but no luck. I read something about "Enableviewstate" also no luck.[code]

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