VS 2008 SelectedValueChanged And A ListView?
Aug 16, 2010
I'm trying to perform an action when the value of a drop down changes, only problem is I dynamically insert the different options after the form starts up, which triggers the SelectedValueChanged instance several times. Is there a way so I can only trigger this event when the user changes the value themselves and not while the dropdown's updating?
Another question. I have a ListView as a grid with gridlines. I have checkboxes but I only want the user to be able to check one box. I figured I'd use ItemChecked and see if there were two items checked, I would alert the user and uncheck both boxes. But I'm not sure how to do this, the event is triggered whether I check or uncheck a box, and as the drop down menu it is populated after the form loads, which means the event is raised whenever I add items to the list regardless of whether the user has selected them or not.
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Oct 11, 2010
I've got 15 combo boxes on a panel and they all get SelectedValueChanged and SelectionChangeCommitted methods triggered when firing a datagrid box cellDoubleClick routine I wrote. I've stepped through every line of code and cannot figure out what is triggering the 15 events, some of which fire 2 times in a row. The first firing clears out the text in the combo. Has anyone experienced this before. Changing from SelectedValueChanged to SelectionChangeCommitted makes no difference - they all still trigger.
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Feb 23, 2011
I have something to confirm with you. What is the difference between SelectedValueChanged and TextChanged Event in combobox. What would I prefer to use between the two events?
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Sep 18, 2009
i tried this Private Sub ComboBox2_SelectedValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox2.SelectedValueChanged
[Code]...
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Jan 27, 2011
In the context of data-bound combobox whose ValueMember and DisplayMember properties are appropriately set:Is there a difference between the SelectedIndexChanged and the SelecetedValueChanged events? Are they fired simultaneously when an item is selected from the drop-down list of the combo?
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Aug 12, 2010
I have a combobox which dropdown style = dropdown. I applied autocomplete function to this combobox. User can type and then use tab key to move next control or select from list.
Question: Which method to use in order get a name value from combobox? SelectionChangeCommitted or SelectedValueChanged?
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Sep 22, 2009
I have a vb-2008 program that contains a (listview) control.
View = details
AllowColumnReorder = true
Lets say the table has 3 columns (a,b,c) and 1 row of data.
a b c
1 2 3
I want the user to be able to re-arrange the columns (by dragging the column headers) before printing the contents of the table.
c a b
3 1 2
Statements like:
.. ListViewX.Columns(2).Text
.. ListViewX.Columns.Item(2).Text
.. ListViewX.Items(0).SubItems(2).ToString
Give the column-name (c) and cell-contents (3) of the origional table .. not the (3rd) column (b) of the re-arranged table.
How can i get the column-name and cell-contents of the (3rd) column of the re-arranged table?
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Mar 21, 2010
Do I really have to go through all this just to find out what item has been selected in a ListView?
[Code]...
Isn't there something fundamental like this? Is absolutely everything in VB.NET buried beneath a colossal heap of bureaucracy?
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Mar 20, 2010
i am developing a point of sales system. currently i have my product code scanned and displayed in a listview. lets say that i have 5 product codes displayed in my first listview. By clicking on a button, how can i use these codes to call upon the details (prices, product name, etc.) of the corresponding codes and display in another listview?
i am using Visual Basic 2008 and MsAccess as my database. who have the idea on solving my question. (As my last thread has not been answered at all..
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Jan 18, 2012
I want ListView instead of CheckedListBox files in checkedListBox is being updated via ListBox1 How can I add the size of file too in listview
[Code]....
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Jan 15, 2010
I have a listview control. it has an imagelist attached to it with two images in it. I have entered items into my listview, and they are using the first image in my imagelist.... GREAT! Now, there is a variable I have that will tell me which index in the listview is currently active, noting to do with what I select that could be at another index it's just what's being processed by the program at the time in some task.
Create a function that will change the images of all my listview items by looping through them. If the index variable is set to 2, I want the 3rd item in my list view set to use the 2nd image in my imagelist. The rest of the items in my listview need to be set to the first image in the imagelist.
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Mar 12, 2009
i want to format listview head of listview textalign = center and item of listview textalign = right
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May 25, 2011
I am trying to figure out a way to include the listview's tag field when dragging one listview's subitems into another listview. I am hoping someone here has experience with this. My Listview drag code is below - the two listviews that I am dragging subitems into or from are LV1 and LV3. Also, this is being done in Visual Basic 2008 and the project is a windows application.
[Code]...
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Jul 22, 2009
I would like my program to list files from a specific directory using the listview control. For an example, listing .temp files from (C:Documents and SettingsDefault UserLocal SettingsTemp) and (C:Documents and SettingsDefault UserRecent), how would I list all the files within the listview control?
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Mar 2, 2012
the below code is on a form2..but the listview it must add these items to is on the Form1. I had to use a delegate just to get it to check if a file contains a specific Character. to add 1 to the lables as number of manuals found Everything seems to be be working except it isnt adding items to the lisview, correction. i think everything is working ok and it's not adding items to the listview. I'm trying my best to understand the thread process, but thus far all i get is confusion,when something does'nt work. add items from form2 to a list view in form1 using threading [Code]
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Apr 18, 2009
I want to have each row in the listview (the view mode is set to detail) have a row #. I COULD set the item text as a row #, but that's kludgy and means sorting has to be customized because the REAL item text is in subitem(1). Is there a way to have a label on each row in a listview that shows the row #?
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Nov 8, 2009
I'm having a hard time setting tooltiptext for a listview. I read in msdn that full row select changes how it behaves but regardless of what I try I cannot get it to display. Basically what I'm looking for is when you have the mouse over a column in a list view that the tool tip text appears describing what that column is showing. This is a list view in DETAIL mode.
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Nov 19, 2011
I'm not 100% how I could describe this, so I made an image.
So what I want is to have a listview with items in the middle. Say
Green
Blue
Orange
And then on either side of those I want the default to be 1's, like on the image. And then I want to be able to press < or > when I have say Green selected and press - or + and it will increment the numbers. Like the second part of the image when the < is 1 and the > is 0.
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Oct 29, 2009
Im trying to make my btn add all the file info to the listview. The listview has : icon + file name/type/bytes/directory. How would i make my Btn open folderbrowserdialog and let the user add it. It will then add all the info to the listview. How would i do this?
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Mar 27, 2011
If tbquantity.Text = "" Or tbdescription.Text = "" Or tbprice.Text = "" Or tbproductcode.Text = "" Then MessageBox.Show("Please Select Items", "Empty", MessageBoxButtons.OK) Else If lvadd.Items.Count = 0 Then lv = New ListViewItem(tbproductcode.Text) lv.SubItems.Add(tbdescription.Text)
[code]....
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Aug 11, 2010
This program includes a working ListView which displays 50 lines, one for each state in the USA. I'd like to print out this information, plus 4 more columns of information associated with each state, including light grid lines, by simply clicking on a print menu item. I don't need a footer, but I do need 2 or 3 lines of formatted header information, and I'd like to fit this all on a single page.
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Jan 28, 2012
I have these codes which when selected items in listbox it display files in CheckedListBox ...
[Code]...
how can I use ListView instead of CheckedListBox ..so that in ListView I may able to show file name as well as file size In ListBox .. this peace of code shows only file name ... how can I declare file size so that I can get file name and file size in ListView CheckedListBox1.Items.AddRange(DirectCast(ListBox1.SelectedItem, [Soda]).files)
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Sep 28, 2011
Dim sb As New System.Text.StringBuilder
For Each item In ListView1.Items
sb.AppendLine(item.ToString)
[code].....
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May 28, 2010
I'm a beginner, and this is an assignment - I have a form with a menu strip and a listview.I also have a separate class that handles everything.When there is data in the listview, and one row is selected, I need to be able to remove that row when delete is clicked in the menu strip.The code I need to use for the delete is below. Currently it's just sitting in the class, and I don't know how to use it.
Public Sub Delete(ByVal item As employee)
If IndexOf(item) >= 0 Then '"IndexOf" looks for item, returns -1 for not found
DeleteAt(IndexOf(item))
[code]....
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Jul 14, 2009
I'm loading files into a listview (1), which works fine. Now I'm trying to load records into another listview (2) according the Listview1.SubItems(2)-record.I tried several times, but without succes. One of the commands;
Dim cmd_data As New SqlCeCommand("SELECT Field1, Field2, Field3, Field4, Field5, Field6 FROM Tablename WHERE Field2 = Name_Form.Listview1.SelectedItems(0).Subitems(1).text", connStr)
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Jan 24, 2012
How do i get this code to load in to a listview rather than a gridview?
code
Private Sub loadCustomers()
[code].....
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Sep 2, 2009
how do i add iteams into the listView ? Ive never done it before and want to know here is what it looks like [code]
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May 19, 2011
I have a ListView box that has 3 columns. The first column is the Item and the next two columns are subitems if I understand correctly.
I can easily add items. How can I add 2 subitems to that one item.
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Dec 26, 2009
In my VB6 project I had eight list boxes in an array. I was able to create a command to move to the next listbox by adding one to the index. I was able to move to the next selected item in the listbox with a command also.All the data in my arrayed listboxes: I was wondering if I could put into a ListView with multiple columns in VB2008 (each column would have the items from the listboxes mentioned before).
If they were in a ListView, would I be able to work in each column by moving to the next item with a command like I did before, and then move to the next column of items with a separate command?
I was thinking it would be easier to do that than array all those listboxes again.
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Dec 9, 2009
I had a question about some logic of the InvokeRequired with a ListView. I have the following
vb.net
Public Sub ListviewSub If ListView.InvokeRequired = True Then Dim t As New MethodInvoker(AddressOf ListViewSub) picCurrent.Invoke(t) Else RunSub() End IfEnd Sub
[Code]...
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