Disable A Specific Item In Combobox?
Aug 10, 2010Lets say have i have 5 items in the combobox
1
2
3
4
5
can i disable a specific item for example just #2?
Lets say have i have 5 items in the combobox
1
2
3
4
5
can i disable a specific item for example just #2?
Here's how I'm trying to manually select a specific item in my combobox. cbEditCategory.SelectedIndex = cdEditCategory.Items.IndexOf(editItemCategory) I setup a msgbox to show "cdEditCategory.Items.IndexOf(editItemCategory)" and it's reporting -1. Why is it not giving me the right index?
View 2 RepliesI have used the command:
For Each Proc as process in process.getprocesses
Combobox1.Items.Add(Proc.MainWindowTitle)
to populate a combo box with the list of current process windows, however for every process that doesnt have a main window title there is a blank space, is there a way that I could tell it to not insert the item if it's mainwindowtitle field is blank?
Just started on vb.net
I have a combo box with "yes" and "no" with i select Yes i want the label2 to change the text to "yes" likewise with "no"
I've tried to code it in a logical way as possible but it just doesn't works except for the "wtf" so i think that overall my code is correct but the way i want to retrieve the selected item from combo box is wrong.
Public Class Form1
Dim aa As String
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
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i have a combobox containing countries name and their codes like INDIA:CNT001 then i have a textbox that store the code of country i.e CNT001(fetching from database) Now i want to match that code with the combobox code so that the combobox is set to that item when i click a button. i m using vb.net and sql server as database.
View 5 Repliesmy program downloads into a combobox every item(line) that is in a text file located on a server.
Every line in the text file ends with "a)" or with "g)".
Now I just want to make 3 radio buttons:
- one that will allow the download in the combobox only the item ending with "g)"
- one that will allow the download in the combobox only the item ending with "a)"
- one that will allow the download in the combobox of both (I already know how to do).
How can I do so?
To download the entire list in the combobox I do:
Dim List As String = client.DownloadString("http://mywebsite.com/mytextfile.txt)Dim lines As String() = List.Split(New String() {ControlChars.CrLf}, StringSplitOptions.RemoveEmptyEntries)ComboBox1.Items.Clear()
ComboBox1.Items.AddRange(lines)
I am new to vb.net and I am using visual studio 2010. I have two comboboxes on a form, each combobox is set to DropDownList so that a list of items can show in the combobox, but no text is allowed to be entered.
For combobox A, if user chooses item 1, the list of combobox B should be updated accordingly. I think this is quite common on a lot of applications. But I do not know to implement it. I even do not know the keyword to search for the relevant property or event handler.
how can I disabled specific rows in ListView using vb.net 2003 language?
View 1 Repliesi press windows key sometimes when i writing somethng on my laptop.question : i want to disable windows logo key (windows key) and other key combos like Ctrl + Esc. i dont need disable all time(regedit method : HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorerNoWinKeys ) just a little time when i writing..
View 2 Repliesi want to scroll with my mousewheel from first item back to last item and scroll then scroll more back.to scroll up from last to first i have with the folowing code but how to do it backward i dont know.
Public Class Form1
Dim i As Integer
Private Sub ComboBox1_MouseWheel(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles ComboBox1.MouseWheel Try If ComboBox1.SelectedIndex = ComboBox1.Items.Count - 1 And e.Delta = -120
[code]....
I populate a DataGridView during a sub routine. Later in my code I have a RowEnter event for that DataGridView when the user is assessing it after it has been populated during the main procedure. However this RowEnter event gets fired while the DGV is being populate. I only want it to file AFTER its populated. Is it possible to disable this specific event while the DGV is being populated? I really want the user to have the ability to cursor up/down the DGV and see affects of the RowEnter Event. I know I can also use the CellEnter event but it does not have the same effect.
View 4 RepliesHow can I disabel and enabel a specific adapter?(restart a specific adapter by vb code)
View 2 RepliesI have 2 buttons on the form, Button A and button B.
I want to enable button A from 6am till 6pm from Monday to Friday and to disable button B during 6am until 6pm.
And I want to disable button A from 6.01pm till 11.59pm.
During saturday, only button B is enabled for the whole day.
As far as I know, there is no way to grey out/disable specific items in the ListBox control? I want to make a list of surveys that need to be answered, but grey out/disable those that the user has already answered.Or is there some way to do it with ListBox?
View 1 RepliesIn .net 3.5 windows forms I have a listview with "CheckBoxes" = true. Is it possible to dim out or disable some items to prevent the user from checking the box?
View 3 RepliesI have a combobox and I want to disable to contextmenu. I tryed button1.focus() when the right mouse button is pressed on the combo but it doesn't work (it makes the focus and then the menustrip appears), I also put a msgbox but that's not a solution.Maybe something when the form is loaded? or globally disable the right click ability....
View 1 RepliesIs there any option to disable particular items in a combobox?? If No then how can i do that??
I have 4 items in Combobox. For each items( based on combobox selected index change) lots of other calculation is there. i need to display all items but in some cases second item should be disabled.
Is it possible to disable some items in a combobox?Depending on the current mode that my application is in, certain items need to be enabled or disabled.I know that I could remove the items and rebuild the combobox but in this case I think that by showing the items greyed out it gives the user feedback as to what mode they are in and what options would be available to them if they decided to switch modes.
View 17 Replieshow to hide or disable items in one combobox on the basis of selected item in another combobox in vb.net?
View 3 RepliesI need to extend a combobox to disable some listitems (i.e splits - "----------"). I reckon some APIs will be involved, and it could get complicated. That'll not put me off though. If anyone with usefull info on the subject could post it,
View 11 RepliesIs it possible to disable editing a combobox. With a textbox you have the option readonly. Is there something like that for the combobox?
View 7 RepliesDoes anyone know of a way to disable the mouse scroll wheel when a control such as a ombobox or listbox has focus? For my purposes, combobox is all I need the answer for.I have a combobox set to trigger a SQL query on SelectedIndexChanged, and accidentally scrolling the wheel while the combobox has focus causes about six SQL queries to fire off simultaneously.
View 3 RepliesHow to enable / disable menu items based on allowed security roles specified for an item.
View 6 Repliesi've tried the enabled propreties to disable editing combobox iteam but it make it gray and it become unreadable.so i changed the combobox style to simple (it looks like a texbox) and i want to know how can i prevent user from changing the content.
View 4 RepliesIs there a way to disable the user's ability to edit the text in the combo-box, so that they can ONLY choose from the options in the drop-down list?
View 2 RepliesI am developing a subject plotter program for enrollment (but not an enrollment system), I use a database to store retrieve/store and update data. What my problem is that I have 2 listview, one that holds the chosen subject, and the other display's the offered subjects. How can I compare a specific item in the listview from another?
View 1 Repliesfor example i have a structure class and obviously created a new list as so. My UserControl creates the new car.
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i m doing project in vb and database is microsoft accessin my form i have 3 radiobuttons and 3 combobox when i select radio button then respective combobox enable and remainig disable i load all the data in combobox through data reader the problem is user can select different radio button so as query also changes to fetch the data from databse whenever i select 1 rasio buttons its work whenever select it not work
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I have an existing menu structure created at design time. During runtime, I want to add a submenu to one of the already existing menu items created at design time.How do i add a dropdownitem at runtime to an already existing menu item? How do I refer to that existing menu item?All positings I found so far either create a main menu item and directly create the submenus. Apparently, the reference to the main menu item was somehow established.
View 3 RepliesI have a feature in my program that allows the user to have multiple tabs, each having its own rich text box. Is there a way that I can only perform an event, such as "Text Changed", for the selected tab's rich text box, or will everything still work (the way I want) if I give them all the same name?
View 12 Replies