Get Combobox SelectedIndexChanged Be Executed On Load?
Jul 5, 2006What is the method to not allow combobox SelectedIndexChanged to be executed on load. and only make it to be executed when a "USER" changes the selection value.
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Combobox Selectedindexchanged
Feb 13, 2012What I want to do here is that for every new item added into the combobox the label will +1 from the previous number. How do I write it out assuming I didn't assign the items a number [Code]
View 2 RepliesGet Combobox Value On Selectedindexchanged?
Jan 29, 2010I have a combobox which is bound to a bindingsource.
What's the correct way to get the combobox selectedvalue on the selectedindexchangedevent?
is combobox1.selectedvalue correct or must I use the bindingsource to get the value?
Combobox SelectedIndexChanged Event Using Ado.net
Nov 24, 2010I am using VB 2010 express edition, using windows form, i set my access database using the database connection wizard, and then use a combobox and bind it to the database using the properties windows, while other fields of database (set in textbox form), i drag it to my form. Running it, the values of textboxes are correct when i changed the value of my combobox. I want to use these values in textbox in drawing circle, whenever i change the value of combobox, the circle will also change using the combobox selectedIndexchanged event, my problem is, the value in textbox does not update in order to draw the circle, i have to use lostfocus or leave event to correct it. I make also a combobox and textbox not using this Ado.net(correct me if im wrong), it is working using the selectedindexchanged event only, what seems be my problem,
View 1 Replies.net - Alternatives To SelectedIndexChanged That Don't Fire On Form Load?
Dec 24, 2009I'm developing in VB.NET with Visual Studio 2005.I have a ComboBox (myCombo) on a form that gets populated within the Load method.I also have handled myCombo.SelectedIndexChanged to change a label on the form.
Edit: The way I added the event handler was by double-clicking on the combo box on the designer. Skeleton code then came up in the code view.It looks like what's happening is when the form loads, SelectedIndexChanged gets fired each time an item is added to myCombo.This isn't what I want, but I'm thinking there's another event handler that only gets called when the user changes the selection.
Here's some code for what I have:
Private Sub myDlg_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' this is all I do with myCombo in this sub
list = GetListOfItemsToAdd()
[code].....
Update: The solution I used was to remove the Handles clause after the event generator, and add this before the "End Sub" above:
AddHandler myCombo.SelectedIndexChanged, AddressOf myCombo_SelectedIndexChanged
Alternatives To SelectedIndexChanged That Don't Fire On Form Load?
Jan 16, 2011I'm developing in VB.NET with Visual Studio 2005.I have a ComboBox (myCombo) on a form that gets populated within the Load method.I also have handled myCombo.SelectedIndexChanged to change a label on the form.Edit: The way I added the event handler was by double-clicking on the combo box on the designer. Skeleton code then came up in the code view.
View 2 RepliesComboBox Cancel SelectedIndexChanged Event?
May 21, 2009I have a ComboBox that contain ProductIDs and a DataGridView that lists Categories which a product can be a member of. My DataGridView list ALL categories, however, it has a checkbox column that get checked when the ProductID is a member of that Category, otherwise it is unchecked. A user may also check or uncheck a category checkbox then save.
The problem is, if a user forgot to save before changing the ComboBox, then his changes on the previous ProductID is gone How can I give the user a chance to either save or ignore the changes done on the previous ProductID (before selecting a new ProductID)?I searched the internet for an answer and I found the following code but it is in C# and I am not sure if it solves the problem or not!
[Code]...
Combobox Query - SelectedIndexChanged And SelectionChangeCommitted Related?
Oct 7, 2009I'm designing a login screen which MUST allow the user to ONLY select a login via a combobox. A user has THREE login attempts only, the problem Im experiencing is resetting the count if they hilight the combobox, move the selection around but ultimately click on the original name.I can use either SelectedIndexChanged or SelectionChangeCommitted but they are both activated even if the same login is selected.So you can select a login enter the password twice and then click on the combobox move the selection around before finally clicking the original name and the login count is reset to 0.Is their a way to do this without using variables to store the previous value (perhaps using validating/validation methods)?
View 4 RepliesComboBox SelectedIndexChanged Doesn't Work Perfectly
Feb 27, 2010I used the following code for displaying the data in datagridview according the to the selection from combobox1 and combobox4,, but the problem is that : it doesn't work perfectly with two comboboxes , it works only with the first combobox which be put.
[Code]...
SelectedIndexChanged Versus SelectedValueChanged Combobox Events?
Jan 27, 2011In 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?
View 1 RepliesStop The SelectedIndexChanged Event Of Combobox At Runtime?
Mar 11, 2010Can we stop the SelectedIndexChanged Event of combobox at runtime? bcoz when i go to last record my sencond combo is refreshed & It will show 1st Item. but i want to see related item with 1st combo.In the database records are stored with related item.but on frontend..
Amother question is, I want to work with Datagridcombobox. My datagrid contains 3 comboboxes. When i clicked on 1st ,2nd combo should be filled. Same like 2nd third. How can we handle the event of DatagridCombobox??
Winform - SelectedIndexChanged Triggered Before ComboBox Populated?
Jan 27, 2011When my form loads, before the ComboBox has been populated and selected this Event (SelectedIndexChanged) gets triggered. How can I prevent the code insides this Event from Executing before form has completely loaded? I tried testing for .SelectedIndex but it returns 0.
View 3 RepliesForm Load Not Fully Executed?
Apr 25, 2010i got this window is in an mdi form and the form_load event is not fully executed, im on window 7 x64 VB 2008. Here is the code of the form load event
Private Sub frmGestion_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
bd.connexion("TacoBD.mdb") bd.ChargerDataset("tblModelAutoLuxe", "SELECT * FROM tblModelAutoLuxe") For ctr As Integer = 0 To bd.dsTaco.Tables(0).Rows.Count - 1 lstVehiculesLuxe.Items.Add(bd.dsTaco.Tables(0).Rows(ctr).Item(0)) Next bd.ChargerMarques("tblModelAuto") bd.Deconnexion() For ctr As Integer = 0 To bd.dsMarques.Tables(0).Rows.Count - 1
[Code]...
VS 2008 User Goes Crazy Changing The SelectedIndexChanged Of A ComboBox?
Oct 23, 2009In my app I have a combobox and a sub wich handles the SelectedIndexChanged. It all works fine, but if the user goes crazy with the mouse scrollwheel changing the selected item in the combobox, the program will sometimes stop working for different reasons.
Now, what I want to do is to make some sort of sleep/wait function in the SelectedIndexChanged event handler, so that if the index hasn't changed in let's say 100 milliseconds, it will continue the code. If the index has changed, it will wait until the user has finished going crazy
What is the best solution to accomplish something like this? I've been thinking about using Thread.Sleep, but I can't find the correct way of doing it.
VS 2008 Send Sample Code For SelectedIndexChanged Event In Combobox?
May 6, 2011send me sample code for SelectedIndexChanged event for Combobox , whn i change value in Combobox through SelectedIndexChanged event then data should be change in Other Combobox and Textbox.B`se i am tring a lot for this but last i am not able to get.In load Event i bind the data in Combobox control .
If All controls bind the same table then how can do code?? and if controls bind different tables then how can do code??
Asp.net - Use GridView SelectedIndexChanged Instead Of RadioButtonList SelectedIndexChanged?
Jun 8, 2012I have a few reasons that I need this to happen, but suffice it to say that when I use the event handler for the RadioButtonList the sender object returns as just the RadioButtonList, and I need more information from the GridView because that's how I can uniquely identify which record my RadioButtonList is tied to.I added an "OnSelectedIndexChanged" property to my GridView but it doesn't fire/handle when I want it to. I'm assuming this has something to do with the way the GridView is designed to work. I also thought about using a hidden field, but I can't add it to the RadioButtonList so it won't help unless it's global. The problem with it being global is that I can't set the value uniquely to the record that has it's RadioButtonList being altered.
View 1 RepliesCombobox Data Load Is Duplicating In The Combobox
Jun 5, 2011Private Sub AddIngoing_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]...
Will The "New" Bit Only Be Executed Once When The Function Is First Executed But In The Next Call, It Will Already Exist
Sep 27, 2009I used to write this:
Private Sub Example()
Static CachedPeople As List(Of MyApp.Person)
If CachedPeople Is Nothing Then
[code]....
But then wondered if I could reduce this to:
Private Sub Example()
Static CachedPeople As New List(Of MyApp.Person)
...rest of code...
End Sub
will the "New" bit only be executed once when the function is first executed but in the next call, it will already exist.
Combobox To Load Textbox?
Apr 29, 2009i have a combo box that contains persal numbers and when a persal nuber is selected or entered, it is suppose to populate the textbox for surname and initials and component description. but with the code i have i get the error:An unhandled exception of type 'System.Data.OleDb.OleDbException' occurred in system.data.dll.
[Code]...
Error In Load Combobox
Sep 2, 2011I have the following code to populate a combobox[code]...
View 2 RepliesLoad A Combobox With Selection From Another?
Mar 26, 2009Load a combobox with a selection from another?[code]....
View 2 RepliesLoad Data In Combobox?
Jun 22, 2010i have an error when executing this
ExecuteReader: CommandText property has not been initialized
Load Data To Combobox?
Jun 9, 2011i create 2 combobox in form, comboproduct & combomodel. i using accessdatabase and using oledbconnection..database in debug folder... i create 1 table, i name it"stock" & 2 column.. first column is product,second model..
i wont load data in product column into comboproduct and model to combomodel..like binding data..
Load Sql Details At ComboBox?
Mar 15, 2012I am trying to get files for my database and load it into comboBox. But for some reason I get systax error.. As I mention into other post I am not familliar with VB so check my code and let me know where I mess up... Here is my code:::
Public Class Form2
Dim DatabaseOpenConnection As New SqlConnection("Server=localhost;User Id=root;Password=root;Database=test")
[code]....
How To Load Values Of A ComboBox From A TableAdapter
May 4, 2010I would like to how I can load a set of values in a comboBox from a TableAdapter. I have the tableAdapter method to read the data , (in this case GetDataByStreet)--> Me.StreetsTableAdapter.GetDataByStreet()
But I don't know how to assign the sentence to the comboBox, in order to load the data set in it.
Load A Database File In Combobox
Jun 15, 2010how to load a file in combobox?how to add, remove and search contents in this file? n how to use filters?
View 1 RepliesLoad Data From Accessdatabase To 2 Combobox?
Jun 9, 2011i using this code to load data from accessdatabase to 2 combobox
Dim cmd As OleDbCommand = New OleDbCommand("SELECT product,model FROM combo_table", conn)
conn.Open()
[Code].....
use can see in this picture hve 2 button, Product Entry and New Product..when i insert new product "Khink "automaticly Stock entry will load new data from accessdabase, but problem is if i go to form Stock Entry, old product in combobox will be double..when i close that form, and open it again, product name "Khink" will be double 2 and samsung,hitachi will be triple..
Load Keys / Values Into Combobox
Feb 25, 2010I'm making a custom scripting engine type thing. I'm trying to add an option to where you can select a list of functions from a dropdown combobox. I want it to display the "Display Names"(Keys as String) of the items in the combobox, but I want it the DisplayNames to point to the (Value as String).[code]so I want "Equals" to be displayed in the combobox, but I want "=" to be the real value.
View 1 RepliesLoad Two XML Files Into Combobox And TextBox?
Jul 17, 2011I have a problem when trying to show details of XML file by choosing an item from Combobox. I have two XML files, called Employee.XML & Subject.XML. The format is like below
<Employee>
<EmployeeID> </EmployeeID>
<Position> </Position>
[code]....
The Combobox contains Employee and its Position also (eg: A1 - IT professor). When I choose an item in here, its Subject details will automatically show in Textbox (one EmployeeID can have many subjects). I cannot use Combobox.SelectItem because I already set Option Explicit On & Option Strict On. I also make EmployeeID by ascending coming up with its position. How can I show details in TextBox by using Subject.XML? I tried many methods but none can work properly.
Load Values Of A ComboBox From A TableAdapter?
May 5, 2010I would like to how I can load a set of values in a comboBox from a TableAdapter. I have the tableAdapter method to read the data , (in this case GetDataByStreet)--> Me.StreetsTableAdapter.GetDataByStreet()
But I don't know how to assign the sentence to the comboBox, in order to load the data set in it.