Removing Items from Populated List-Box

I have a drop down box populate a list box. (change: ListBox1.addItem(xfa.event.newText)) But I can add more then one of the same selection so how do I remove them from the ListBox. Upon click? somehow? I don't konw the lingo.

There is a selectedIndex property that will give you back the index of the 1st item that is selected.
Paul

Similar Messages

How to remove an item from a list box?

Here's my previous code.
I hope someone can help me. Thanks.
public partial class frmJaialai : Form
List<Jaialai> source;
public frmJaialai()
InitializeComponent();
private void frmJaialai_Load(object sender, EventArgs e)
source = new List<Jaialai>();
private void btnAdd_Click(object sender, EventArgs e)
if (IsValidData())
int bet;
if (string.IsNullOrEmpty(txtJaialaiNumber.Text) || !Int32.TryParse(txtBet.Text, out bet))
MessageBox.Show("Must be a required field.", "Entry Error");
return;
var existingProduct = source.Where(x => x.JaialaiNumber == txtJaialaiNumber.Text).SingleOrDefault();
if (existingProduct != null)
existingProduct.Bet += bet;
else
source.Add(new Jaialai { Bet = bet, JaialaiNumber = txtJaialaiNumber.Text });
lstJaialaiNumbersList.DataSource = null;
lstJaialaiNumbersList.DataSource = source;
txtJaialaiNumber.Text = "";
// save the jai-alai numbers list on a txt file
const string sPath = @"C:\Automated Jai-alai Program\Jai-alai Numbers List.txt";
System.IO.StreamWriter SaveFile = new System.IO.StreamWriter(sPath);
foreach (var item in lstJaialaiNumbersList.Items)
SaveFile.WriteLine(item);
SaveFile.Close();
public class Jaialai
public string JaialaiNumber { get; set; }
public int Bet { get; set; }
public override string ToString()
return string.Format("{0} = {1}",
JaialaiNumber, "₱" + Bet.ToString());
private bool IsValidData()
return Validator.IsPresent(txtJaialaiNumber) &&
Validator.IsPresent(txtBet) &&
Validator.IsInt32(txtBet);

Hi ,
Here is a sample about remove Item from listBox.
// listBox1.Items.Clear();// remove all
int SelItemCount = listBox1.SelectedItems.Count;
for (int i = 0; i < SelItemCount; i++)
listBox1.Items.Remove(listBox1.SelectedItem);//remove which one you selected
You also can check in MSDN
https://msdn.microsoft.com/en-us/library/aa983551(v=vs.71).aspx
Best regards,
Kristin
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How do i remove items from purchased list in iTunes store?

The Purchased items in iTunes show everything i ever downloaded to my iPod.
How can i remove some of the items?
The list is way too long.
So items were downloaded to see what they do.

yeah... same question from my side.....

Select multiple items from a list box as values for a parameter of crystal report and Oracle procedure

- I have a Product list box (asp.net) used as multiple selected values for a parameter.
- The Product ID is defined in the Oracle procedure as NUMBER data type.
- In my crystal report, I have a parameter field allow multiple values as p_product_id type as Number. This is the code in my Record Selection Formula for the report:
({?p_product_id}[1] = -1 OR {Procedure_name.product_id} in {p_product_id})
- In C#, this is my code
List<decimal?> productUnit = new List<decimal?>();
int counter = 0;
decimal prod;
for (int i = 0; i < lstProducts.Items.Count; i++)
              if (lstProducts.Items[i].Selected)
                            if (decimal.TryParse(lstProduct.Items[i].Value, out prod))
                                productUnit.Add((decimal?)prod);
                                counter++;
       if (counter == 0)
                   productUnit.Add(-1);
ReportingDAO rDataFactory = new ReportingDAO();
retVal = rDataFactory.GetProductReport(productUnit);
public CrystalDecisions.CrystalReports.Engine.ReportDocument GetProductReport(List<decimal?> productUnit)
          CrystalDecisions.CrystalReports.Engine.ReportDocument retVal = new rptProductDownload();
          ReportLogon rptLog = new ReportLogon();
         rptLog.Logon(retVal, "RPT_PRODUCT_DOWNLOAD");
         retVal.SetParameterValue("p_product_id", productUnit);
I keep having the "Value does not fall within the expected range" when I debug. My question is, is the data type I used for procedure/Crystal report/ and C# correct ? I always have problem with the data type. Any help would be
appreciated
Thank you

Hi progGirl,
Thank you for your post, but Microsoft doesn't provide support for CrystalReport now. Please post your question in SAP official site here:
http://forums.sdn.sap.com/forum.jspa?forumID=313
Thank you for your understanding.
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Remove items from a list

This isn't so much a cold fusion question as a just a logic
question.
I have a form variable "form.list1" that contains numbers
1,2,3,4,5,6,7,8,9
I have a second form variable "form.list2" that contains
numbers as well 3, 5, 6
What I want the end result to be is a variable that contains
all of the numbers in form.list1 minus what is in form.list2, so
that would be 1,2,4,7,8,9.
I can not for the life of me figure out how to do this.
I've tried doing a nested loop list, but I can't see the
logic to make it work.
Any help would be greatly appreciated

quote:
Originally posted by:
cputnam14
The first list is generated with an output query. The numbers
represent a corresponding document type in my database.
The second list is generated from a checkbox inside the
output query.
So the query outputs documents that need to be filled out by
a user. There is an option to email the documents to the user, but
I have a check box beside each one that will omit the checked
document.
The result is a list of all the documents, and a list of
documents that don't need to be sent.
With the resulting list, I will generate an email and attach
the document to the email and send it out.
Make the query a session variable.
Then do a Q of Q on it to exclude the 2nd list.

Selecting Items From a List Box No Longer Works in Powershell Version 3.0

I've noticed that the script in
this powershell tip of the week no longer seems to fully work in Powershell V3. The selection dialog will pop up as expected, with all of the elments populated, but the selection is not stored in variable '$x'. Any idea what changed and how to get it to
work?
[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")
[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Drawing")
$objForm = New-Object System.Windows.Forms.Form
$objForm.Text = "Select a Computer"
$objForm.Size = New-Object System.Drawing.Size(300,200)
$objForm.StartPosition = "CenterScreen"
$objForm.KeyPreview = $True
$objForm.Add_KeyDown({if ($_.KeyCode -eq "Enter")
{$x=$objListBox.SelectedItem;$objForm.Close()}})
$objForm.Add_KeyDown({if ($_.KeyCode -eq "Escape")
{$objForm.Close()}})
$OKButton = New-Object System.Windows.Forms.Button
$OKButton.Location = New-Object System.Drawing.Size(75,120)
$OKButton.Size = New-Object System.Drawing.Size(75,23)
$OKButton.Text = "OK"
$OKButton.Add_Click({$x=$objListBox.SelectedItem;$objForm.Close()})
$objForm.Controls.Add($OKButton)
$CancelButton = New-Object System.Windows.Forms.Button
$CancelButton.Location = New-Object System.Drawing.Size(150,120)
$CancelButton.Size = New-Object System.Drawing.Size(75,23)
$CancelButton.Text = "Cancel"
$CancelButton.Add_Click({$objForm.Close()})
$objForm.Controls.Add($CancelButton)
$objLabel = New-Object System.Windows.Forms.Label
$objLabel.Location = New-Object System.Drawing.Size(10,20)
$objLabel.Size = New-Object System.Drawing.Size(280,20)
$objLabel.Text = "Please select a computer:"
$objForm.Controls.Add($objLabel)
$objListBox = New-Object System.Windows.Forms.ListBox
$objListBox.Location = New-Object System.Drawing.Size(10,40)
$objListBox.Size = New-Object System.Drawing.Size(260,20)
$objListBox.Height = 80
[void] $objListBox.Items.Add("atl-dc-001")
[void] $objListBox.Items.Add("atl-dc-002")
[void] $objListBox.Items.Add("atl-dc-003")
[void] $objListBox.Items.Add("atl-dc-004")
[void] $objListBox.Items.Add("atl-dc-005")
[void] $objListBox.Items.Add("atl-dc-006")
[void] $objListBox.Items.Add("atl-dc-007")
$objForm.Controls.Add($objListBox)
$objForm.Topmost = $True
$objForm.Add_Shown({$objForm.Activate()})
[void] $objForm.ShowDialog()
$x

Hi,
What is the value of $x?
Make sure that you have copied the whole script, and whether it works on Powershell V2?
Regards,
Yan Li
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Removing items from "Places" list

On the left-side "Devices" and "Places" dock of my desktop, I have a number of places that are 'empty shells' that ought not be there. How do I remove them? I'm running 10.6.8.

If you hold the command key down and drag them out, they should disappear.
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How can we remove items from the VF04 list?

We have a long list of items in VF04 that, for various reasons (some process related, some due to errors), are not to be billed. We have looked at applying filters to the list but there is nothing really suitable to hide these individual documents e.g. we could filter out some dates where none of the items on that date are to be billed but other dates have a mix of items we want to bill and others we don't.
I have done a search of this forum but didn't find a previous topic with a quick and simple method to remove items from the list .
Is there a method, other than billing them or sorting each issue individually, to permanently remove individual documents from the VF04 list?
Thanks in advance for any help.
David

Hi,
David,
Download a list of Pending delivers doc form VF04.
Paste the list in T.Code : VL09 (Delivery reversal) and reverse the delivery.
Then go to T.Code: VL06G Select the list of deliveries that has been reversed, select/delete all un- wanted deliveries.
This way you can remove all unwanted pending deliveries forn Billing due list (VF04).
Thanks & Regards,
R.Janakiraman

How can i remove items from list that have been deleted when i click on them it keeps showing empty

how can i remove items from the list that have been deleted when i click on them it keeps showing folder empty

Actually, Reader SHOULD keep showing documents that no longer exist, I disagree. It's no big deal, and people will quickly realise why they can't open the file. They open more files, the old ones move off.
The REASON why it should not check is that checking whether a file exists can take a long time when things aren't good. For instance if a file server goes down, or a memory card is unplugged. That in turn would mean delays opening the File menu, and I've seen some software that can sit there for several minutes. That would really give people something of which to complain...

JList run time errors when removing items from list

Hi there
I am having trouble removing items from a JList. For a While it was working fine and now it outputs runtime errors everytime samething gets removed from the lsit
Here is the code
//declare
public class Consumertab1gui extends JPanel implements ActionListener
     public static JList conList = null;
     private static DefaultListModel model = null;
// Create a list with some items
model = new DefaultListModel();
conList = new JList(model);
//set the size of cells in the list with the length of the string
conList.setPrototypeCellValue("Lenght 1234567890");
conList.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
conList.addListSelectionListener(new ValueReporter());
//set a scroll onto the list
JScrollPane conScroll = new JScrollPane(conList);
add(conScroll,c);
//when the button gets pressed to drop the selected item the following code is called
private void dropConsumer()
int selItem=0;
componentsV.comVRemove(conList.getSelectedValue().toString());
selItem=conList.getSelectedIndex();
System.out.println("No:"+(model.getSize()-1));
System.out.println("S:"+selItem);
remConList(selItem);
dropCon.setEnabled(false);
//which in turns calls this
public void remConList(int pos)
     model.remove(pos);
when the model.remove(pos) code is executed the following runtime errors are given:
java.lang.NullPointerException
at Consumertab1gui$ValueReporter.valueChanged(Consumertab1gui.java:197)
at javax.swing.JList.fireSelectionValueChanged(JList.java:1321)
at javax.swing.JList$ListSelectionHandler.valueChanged(JList.java:1335)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:187)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:167)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:214)
at javax.swing.DefaultListSelectionModel.removeIndexInterval(DefaultListSelectionModel.java:546)
at javax.swing.plaf.basic.BasicListUI$ListDataHandler.intervalRemoved(BasicListUI.java:1561)
at javax.swing.AbstractListModel.fireIntervalRemoved(AbstractListModel.java:160)
at javax.swing.DefaultListModel.remove(DefaultListModel.java:478)
at Consumertab1gui.remConList(Consumertab1gui.java:38)
at Consumertab1gui.dropConsumer(Consumertab1gui.java:58)
at Consumertab1gui.actionPerformed(Consumertab1gui.java:46)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1786)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1839)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:245)
at java.awt.Component.processMouseEvent(Component.java:5100)
at java.awt.Component.processEvent(Component.java:4897)
at java.awt.Container.processEvent(Container.java:1569)
at java.awt.Component.dispatchEventImpl(Component.java:3615)
at java.awt.Container.dispatchEventImpl(Container.java:1627)
at java.awt.Component.dispatchEvent(Component.java:3477)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3198)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128)
at java.awt.Container.dispatchEventImpl(Container.java:1613)
at java.awt.Window.dispatchEventImpl(Window.java:1606)
at java.awt.Component.dispatchEvent(Component.java:3477)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
can anyone spot any mistakes in the code or suggest possible resons as to why these run time errors occur?
Thanks
alexis

java.lang.NullPointerException
at Consumertab1gui$ValueReporter.valueChanged(Consumertab1gui.java:197)The NullPointerException occurs at line 197, in the valueChanged method of your ValueReporter inner class. I have looked through your post several times but I don't see where you posted that method. Anyway, that is where you should look.
PC²

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Removing items from "open a recent item" list

Hi,
I deleted some files in dreamweaver cs5, but they still appear in "Open a recent item",
how can I remove them from the list?
Thanks for any help
David

Windows or Mac?
On Windows, it's a setting in the Windows registry:
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Alternatively, just open up to 9 legitimate files in DW and let the list update itself.

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Looks like it's not just you having problems : https://discussions.apple.com/thread/3093114?tstart=0
Normally pressing the 'x' on or next to the item should delete it (http://support.apple.com/kb/HT1368), but it doesn't appear to be working at the moment.

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Removing Items from Populated List-Box

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