Which Item Was Checked, When Putting The Sender Into A Message Box?
Nov 18, 2010
I have a list of items in a ListView and at the top of the list there is an item that is supposed to select all the items in the ListView. I can get it to select all of the items when it's checked but then I can't deselect any other items. I need the to know which item was checked, when putting the sender into a message box I get "System.Windows.Forms.ListView, Items.Count: 1, Items[0]: ListViewItem: {All}". How do I get the sender's item?
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Nov 9, 2010
I have 3 webforms controls: 3 checkboxes and 1 textbox.
When I check checkbox1 and checkbox2, then in the textbox it should appear as 1,2.
How can this be done using ASP.NET webforms controls?
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Apr 30, 2011
In a listview with check boxes, there are two fields being loaded, ID and Lastname. With this information I want to get the ID of the person whose box is checked with this sub:
[Code]....
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Feb 16, 2010
I am developing a chat application using VB.NET and ASP.NET and I need to identify the particular user name users post messages. At present, it just shows my name, even for messages I haven't posted.
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Sep 27, 2011
When I go to run the program and try it out, I keep getting my error message that I am not putting in a numerical value even thought I am.
[code]...
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Jan 12, 2012
removing Listbox item from checked Listview item.The code I tried just errors out.
Private Sub ListView1_ItemCheck(sender As Object, e As System.Windows.Forms.ItemCheckEventArgs) Handles ListView1.ItemCheck
If (e.CurrentValue = CheckState.Unchecked) Then
ListBox1.Items.Add(Me.ListView1.Items(e.Index).Text)
ElseIf (e.CurrentValue = CheckState.Checked) Then
[Code]...
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Feb 3, 2011
In our application, the customer can work with different client projects/datasets. If there are more than a few client projects to choose from, we display them in a listbox to start with, and then it is easy to preselect the last dataset that the customer was working with. However, if there are only a few client projects, we show them as options in a menu instead (think "recent documents"). When the application starts, I would like the menu to be opened automatically and the most recently used client project selected. Is there a way to open the main menu and a submenu of a form and select/focus (but not actually click) an item programmatically?
The old way that we were doing this in VB6 was to use SendKeys to send keystrokes to the form to open the menu and then arrow-down far enough to get to the most recent project, but that is kind of unclean. Particularly, if the user starts our application and then tabs away quickly to work in a different application, the keystrokes may end up being processed by that application instead.
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Aug 13, 2011
(me = an absolute beginner in WPF / VB2010) how to get the type of sender in (ByVal sender As Object)? Purpose: when two different Objects call the same subroutine, find out which one actually called it.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles Button1.Click
sayHello(sender)
End Sub
[code]....
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Jun 10, 2011
I need help on passing checked list view items into one message box. my current code outputs multiple message box with the name of the item, depends on the number of items checked. what i need is to output into a message box all the items checked in my list view. the items should be posted in multiple lines. is there any way i can do it.
[Code]...
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Jun 16, 2011
This is probably easy as well. But I have this listview which contains exe files I've listed up. Now, I want to execute these exe files in turn from which items are checked or not. So, I've tried this:
For each item in listView1.CheckedItems
Msgbox item.ToString
Next
Cause I noticed that the item in checkedItems doesn't contain much. And if I convert it to a string, it ends up in the msgbox looking like this: ListViewItem: {Filename.exe}
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Oct 26, 2011
I have a list of options on my site that a user can select. What I want to do is provide functionality to limit the amount of content the user gets based on his selection in a CheckBoxList. Once he's selected what he wants, he'll click Save and his selection will be written to the database. The CheckBoxList is initially populated from the Modules table. This provides a list of modules that the user can select. When he clicks Save, the code needs to loop through this CheckBoxList and "pick out" the values for the CheckBoxes that were checked, disregarding the ones that weren't. The problem is that whether a CheckBox is checked or not, the debugger returns a False value for the CheckBoxList.Items(i).Selected property.
Here's my code:
Private Sub AddUpdateOrg(ByVal OrganizationName As String,
ByVal Action As String, Optional
ByVal Target As Integer = Nothing)
[Code] .....
Its possible that this behavior is the result of a postback from the save button. Upon further examination of the code, I've reconsidered the possibility that this issue is caused by a postback as the CheckBoxList is not bound on page load.
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May 10, 2010
Given a CheckedListBox instance, how can I accomplish that a maximum of one item can remained checked?
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Jan 7, 2010
Given a CheckedListBox instance, how can I accomplish that a maximum of one item can remained checked?
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May 19, 2009
I have a chechlistbox and i have 10 items. and items are checks randomly.
i want to determine which items in checklistbox is check.
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Sep 15, 2009
I use the code below to get the checked item value in my ilstview, i also need the subitem values (there are 2) i can't seem to figure out how.
[Code]....
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Dec 24, 2011
I have a form with a ContextMenuStrip Added and a Listview. I set the 'ContextMenuStrip' property on the listview to my newly created ContextMenu.
So, I am creating the Menu items from a database (no problems here). But I cant seem the get certain menu items to a checked status when creating the menu item from the database.
The Code below is a sample of what I am using.
Public Sub LoadMenu(_Menu As ContextMenuStrip)
Dim n As Long = 0
Try
[code]....
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Apr 12, 2011
Does anyone know of a control such as a Checked List Box where each item can have a value against it.For example you have a list of fruits and in the listbox it displays Apple, Orange & Banana but the values for those items are A, O & B.
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Jan 30, 2011
With my CheckedListBox, I am trying to get the text of each item that is checked and add it to a listbox, but it does not get everything currently checked. If I have 3 items checked, it only adds 2 items. If I deselect an item, it appears.
lstOpCodes.Items.Clear()
Dim OpCodeCollection As CheckedListBox.CheckedItemCollection
OpCodeCollection = chkOpCodes.CheckedItems
For Each opcode In OpCodeCollection
lstOpCodes.Items.Add(opcode)
Next opcode
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Jan 8, 2011
The check box list has an event called "ItemChecked" or something, which triggers when an item is about to change its checked status.
So, it is before the check occurs.I couldn't find an event that occurs after the item has changed.. I want to execute some code only when an item is checked or unchecked.
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Dec 24, 2011
I want to adding checked item from checkedlistbox to my combobox, but i have a little problem here.Combobox only show 1 item last checked.This is my sample code.
If CheckedListBox1.CheckedItems.Count <> 0 Then
For i As Integer = 0 To CheckedListBox1.CheckedItems.Count - 1
cbCheckedItem.Text = CheckedListBox1.CheckedItems(i).ToString
Next i
End If
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Mar 7, 2011
I remember doing this in a checkboxlist element, but with listview element its giving a hard time.
Private Sub CheckedListBox1_ItemCheck(ByVal sender As Object, _
ByVal e As ItemCheckEventArgs) Handles ListView1.ItemCheck
If e.NewValue = CheckState.Checked Then
For index = 0 To Me.ListView1.Items.Count - 1
[Code]...
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May 14, 2012
I have a checkbox list which is filled with entries from my database on page load. I need to update an entry in my database when a item is checked and when an item is unchecked. Right now I am doing the following:
<asp:CheckBoxList id="check1" AutoPostBack="True" TextAlign="Right" OnSelectedIndexChanged="Check" runat="server">
</asp:CheckBoxList>
And the function:
Sub Check(ByVal sender As Object, ByVal e As EventArgs)
Dim sql As String
If check1.SelectedItem.Selected = True Then[code]....
The error is: "Object reference not set to an instance of an object." Is there a better way to check if a list item is checked or unchecked?
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Nov 17, 2009
1) Can I set a CheckedListBox item to be disabled programatically so that it cant be checked?
2) Why doesn't the SelectedIndexChanged event fire when I check or uncheck an item programatically? But it does if I do it manually...
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Jan 10, 2012
[code] The problem is that AffiliazioneID = chkFonti.CheckedItems(i).ValueMember it's wrong.How can I correctly obtain the valuemember of every checked item?
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Jun 28, 2010
Ok. So, how do i save things. Ive made a Checked Item Box. But i can't get any of the things to Save that i have Checked?
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Aug 11, 2009
[code] I am trying to append the name of each checked list box item selected to the end of the current directory but i am obviously doing something wrong.
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May 31, 2012
[Code]...
Then skips straight to the Else without performing the two lines in between, regardless of whether the item was checked or not checked. It doesn't crash, doesn't throw any errors, so I am assuming I coded this wrong somehow.
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Dec 26, 2009
I have a form like that: What I need to do is when the user selects item1 from combobox a message will be displayed in listbox. My combobox has 11 items so I must have 11 appropiate messages to be stored automatically in listbox . (The message is appropriate of what item is selected from the combobox)
Here is the full code implemented :
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
Dim msg1, msg2, msg3, msg4, msg5, msg6, msg7, msg8, msg9, msg10, msg11 As String
If ComboBox1.SelectedValue = "Item1" Then
msg1 = "Ati ales item1 din combobox"
[Code] .....
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May 26, 2009
i just want to ask how can i trap the deletion message appears whenever i delete one item in may data entry? im using vb2008 and sql as my database.i know the code in access. does anyone know its counterpart in vb2008? here's the code in Access 2003acDataErrContinue
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Feb 9, 2011
When I write public events for my business objects, I've adapted the habit of always passing the instance as "sender as Object", in addition to additional specific parameters. I just asked myself now why am I not specifying the class?
So for you with more experience; Do you ever pass the distinct class as sender in an event? And if so, what are your decision criteria for when this is ok/not ok?
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