I 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 Replies
Is 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'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 RepliesHow do I disable buttons while there are less than 2 items in a listbox? I can't figure out how to do it. I'm a newbie in Visual Basic(programming at all)
View 7 RepliesAs 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 RepliesI can't seem to figure out how to use databindings to enable/disable a button when a listbox contains 0/1+ items?
Button1.DataBindings.Add("Enabled", ListBox1, "Items.Count")
Button1.DataBindings.Add("Enabled", ListBox1.Items, "Count")
Result = ArgumentException: Cannot bind to the property or column Count on the DataSource. Parameter name: dataMember
Button1.DataBindings.Add("Enabled", TextBox1, "Text.Length") ' This works?
(All of the names on the ListBox are actually .txt files, which contain different values that can be put into the program by a certain window.)
I'm trying to use a ComboBox to order items in a list by a certain value. So say I select "Sort by Alphabetical" in the ComboBox, I'd want it to sort the items in the ListBox in alphabetical order.
Also, if I were to have a certain value in the .txt files that I would like to sort by, is there a way I could order by that?
I have a combo box with a list of Coordinator IDs, one Coordinator can run many subjects. On another form I have a list box that contains a list of the subjects, and another list box that has the coordinator that teaches the subject. The positions match up, i.e if there is a match for the co-ordinator ID in the list box at position 3, I want to extract the subject list box at position 3 also. The problem is 1 coordinator can teach more than 1 subject. Basically I want to show the subjects taught by the Coordinator the user selects in the combo box. I have tried the following but have had no luck:
[Code]....
I am using VB.NET (version 2008). I have two types of items populating in a listbox (checked listbox). For example: lets say one is type "A" and other is "Type B". Their names maybe same so if the user sees those items in listbox then he won;t be able to determine their type until he click on them and checks out its properties. I wanted that I add each item to listbox and colour them so that blue for example means type "A" is there and red means the other. So this way I will be able to know at a glance that how many item of what type is present. I guess it may not be possible to do that in a standard checkedlistbox. I am also using component factory's krypton controls which enhance the gui of an application. But I dunno if I can progress using that.
View 5 RepliesI am using VB.NET together with ADO.NET to create a program. I have set my TableAdapters as needed and bound the correct tables-columns to my comboboxes.My problem though is this:My combobox2 item is bound to a datatable. The table adapter's Fill method (the select command basicaly) includes a public variable in the where clause to fetch the correct results. I ll put some code here to clarify it a bit more.Public Class Frm_inv
[Code]...
I want to get all items from one column of database table to the combobox items.
View 2 Replies[Code]...
I'm making a combobox on a form. I want the combobox to have a list of choices from a table in a db. The two columns are a String and a Date. I want the date column to only show the year. I'm hoping I have the code right as it is above, but I'm not positive I've done the whole date thing right.
So I want it to remove any text in the list box that has a "Job" in it and just replace it with a blank nothing.
Like if the listbox looked like this
Yardjob
jobsong
redjob
then it would change it to this
Yard
song
red
I also would like a way of removing any blank items from the listbox.
[URL]
I have a form in my vb.net application used to take the data about the returned stock. The form contains two comboboxes. One, named combobox5, contains invoice numbers and the other, named combobox3, contains party codes. Both the comboboxes are pre_loaded using sqldataadapter.
Now what i want is to change the party code in combobox3 when the invoice number is changed in combobox5. Elaborating it further, When Stock is issued the party code is stored along with the invoice number to keep track of to which party was the stock issued. Now when stock is returned i want to keep track that which party has returned the stock and i want that the party code should be automatically selected when the invoice number is changed and it should be what is stored in the database against that particular invoice number....
I'm using the following code for doing so:
Private Sub ComboBox5_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox5.SelectedIndexChanged
' defines a new connection to the database
Dim con As New SqlConnection("Data Source=TAHA;Initial Catalog=ADT;Integrated Security=True")
[Code].....
i'm creating a simple search application which have a TEXT box and some combo boxes and radio buttons and a search button.radio button names "Videos", "Audios", "Pics" etc..when radiobutton of video is selected, a combobox is appear having options "DailyMotion", "Metacafe" etc I want that when i click "Metecafe" item in combobox of video, an other combo box appear having items Like "Entertainment", "How To", "+18" etc(categories of video search).
if combobox1.SelectedItem = "PAKISTAN" Then
combobox2.Visible = True
End if
if combobox1.SelectedItem = "INDIA" Then
[code]....
when running a process in a backgroundworker, do i need to manually disable all the items in my form to stop the user from any transactions while the backgroundworker is doing something and then enable them after
View 3 RepliesI am using the below code to find all the items in a listbox using vb.net 2005. But how can remove the non searched items from the listbox after searching?
[Code]...
I am trying to remove items from a listbox based on the items on another listbox, this seems simple but apparently[code]...
View 1 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 RepliesI would like to disable a specific items from DropDownList. I have below code but it does not working. DropDownList have 5 items.And,I'm getting error:Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index
Protected Sub CheckBox1_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged
Dim X As Integer = 0 <> 1
DropDownList1.Items(X).Enabled = False
End Sub
But, if I add a different value for X, then it disable 1st and 2nd item.
Protected Sub CheckBox1_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged
Dim X As Integer = 0 or 1
DropDownList1.Items(X).Enabled = False
End Sub
My goal is if I would have a 365 items in DropwDownList to disable items for example between 120 and 150.
In VB 6 I enabled and it incapacitated the items of the menu with the following expression. And in VB.net how to do to substitute this expression in my project?
View 7 RepliesLets say have i have 5 items in the combobox
1
2
3
4
5
can i disable a specific item for example just #2?
Is 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 Repliesprobs a simple answer but my mind is blank atm. I have this code to move all items from listbox3 to listbox1 but it wont move them unless i select 1, then it moves all items.
[Code]...
if booking closed column values is equal or more than textbox1 text then the book button in gridview will be disabled for each gridview item whose booking closed time is greater and equal to textbox1 time ..
How to do that ?
M using VS 2008 and vb
is it possible to disable validation of all items inside a panel programatically in vb.net?
i can't seem to figure it out.
i disabled all fields inside a panel, but they still cause the page to validate on submit.
this is what i have now:
Public Sub DisableControls(ByVal parent As Control)
Dim cCon As Control
For Each cCon In parent.Controls
[Code]....
How to disable other controls when an item is selected from a different combo box. When someone selects a specific item from the combo box provided, It should automatically disable other controls specified to be disable.
View 2 RepliesI am creating a user rights access to a menu. for example an administrtor account can access a sales report while a limited account cannot. What i mean is a customize menu for an administrator and limited user....
ex. administrator
Sales Report--->Daily sales-enable
limited account
Sales Report--->Daily Sales-disable
