HLP: GRRR... StartUp Troubles

Mr. B

GRRRR... I've run across a situation in which I have NO solution. Hopefully
there is one. VB.net.

It's rather simple.

I've a ComboBox that get's populated via a Database. And I pre-select (during
Formload) the Index using SelectedIndex:

' Get User info from Data Base fill
daPickUser.Fill (dsPickUser.MAS TER_PRM_EMPLOYE E)
cmbUserName.Sel ectedIndex = cmbUserName.Fin dStringExact(st rUserID)

Now the above works just fine. It finds my strUserID (ie: FEU001 which is
Index #28) and that is what is listed in the ComboBox on startup. Great!

However, I want to use the Combobox to select another User at some time. When
I ENABLE the following Private Sub for the Combobox, I get my troubles...

My Combobox even is thus...

Private Sub cmbUserName_Sel ectedIndexChang ed(ByVal sender As System.Object,
ByVal e As System.EventArg s) Handles cmbUserName.Sel ectedIndexChang ed

dsTimberline.tb lTimeEntry.Clea r()
' Refresh the Data Grid with New User Selected
strUserID = cmbUserName.Tex t
daTimberline.Se lectCommand.Par ameters(0).Valu e = strUserID
daTimberline.Fi ll(dsTimberline .tblTimeEntry)

End Sub
What happens is that on startup, somehow the Combobox SelectedIndexCh anged
sets my Combobox Index to Zero (0)... every time. I don't want Index of 0.
But the listing of what is the Index number of my strUserID.

How can I prevent the cmbUserName_Sel ectedIndexChang ed from being triggered
during startup???

Regards,

Bruce

Jul 21 '05 #1

Subscribe Reply

1436

Tom Shelton

On 2003-10-23, Mr B <No*****@addres s.not> wrote:

GRRRR... I've run across a situation in which I have NO solution. Hopefully
there is one. VB.net.

It's rather simple.

I've a ComboBox that get's populated via a Database. And I pre-select (during
Formload) the Index using SelectedIndex:

' Get User info from Data Base fill
daPickUser.Fill (dsPickUser.MAS TER_PRM_EMPLOYE E)
cmbUserName.Sel ectedIndex = cmbUserName.Fin dStringExact(st rUserID)

Now the above works just fine. It finds my strUserID (ie: FEU001 which is
Index #28) and that is what is listed in the ComboBox on startup. Great!

However, I want to use the Combobox to select another User at some time. When
I ENABLE the following Private Sub for the Combobox, I get my troubles...

My Combobox even is thus...

Private Sub cmbUserName_Sel ectedIndexChang ed(ByVal sender As System.Object,
ByVal e As System.EventArg s) Handles cmbUserName.Sel ectedIndexChang ed

dsTimberline.tb lTimeEntry.Clea r()
' Refresh the Data Grid with New User Selected
strUserID = cmbUserName.Tex t
daTimberline.Se lectCommand.Par ameters(0).Valu e = strUserID
daTimberline.Fi ll(dsTimberline .tblTimeEntry)

End Sub
What happens is that on startup, somehow the Combobox SelectedIndexCh anged
sets my Combobox Index to Zero (0)... every time. I don't want Index of 0.
But the listing of what is the Index number of my strUserID.

How can I prevent the cmbUserName_Sel ectedIndexChang ed from being triggered
during startup???

Regards,

Bruce

Bruce...

A possilbe solution to this is to remove the handles clause from your
event handler. Then AFTER you fill the combobox, you can associate the
event with the combobox using AddHandler:

Private Sub Form_Load(...) Handles...

' Fill Your Combo Box

' Add your handler dynamcially
AddHandler cmbUserName.Sel ectedIndexChang ed, AddressOf
cmbUserName_Sel ectedIndexChang ed
End Sub
' then change the sig of the event to:
Private Sub cmbUserName_Sel ectedIndexChang ed( _
ByVal sender As System.Object, ByVal e As System.EventArg s)

'Do Cool Stuff!
End Sub

HTH
--
Tom Shelton
MVP [Visual Basic]

Jul 21 '05 #2

Mr. B

With Deft Fingers, Tom Shelton <to*@mtogden.co m> wrote:

On 2003-10-23, Mr B <No*****@addres s.not> wrote:
GRRRR... I've run across a situation in which I have NO solution. Hopefully
there is one. VB.net.

A possilbe solution to this is to remove the handles clause from your
event handler. Then AFTER you fill the combobox, you can associate the
event with the combobox using AddHandler:

Thanks Tom... I'll try that!

Regards,

Bruce

Jul 21 '05 #3

Mr. B

With Deft Fingers, Tom Shelton <to*@mtogden.co m> wrote:

A possilbe solution to this is to remove the handles clause from your
event handler. Then AFTER you fill the combobox, you can associate the
event with the combobox using AddHandler:

Sweet!!! Worked GREAT! Many Thanks!

Bruce

Jul 21 '05 #4

Similar topics

1098

HLP: GRRR... StartUp Troubles

by: Mr. B | last post by:

Visual Basic .NET

271

HLP: GRRR... StartUp Troubles

by: Mr. B | last post by:

.NET Framework

1308

showing .hlp files in C#

by: Madmax | last post by:

I am trying to use the .hlp file (an old help from for an existing app) in my application .Although the file shows up but it does not open the desired search string this is what I am doing string strHelp = C:\myfolder\ABC.HLP"; //its a hlp file Help.ShowHelp(this, strHelp,"Glossary");

C# / C Sharp

1763

Opening a HLP file

by: HornyAZNBoy | last post by:

I've just wrote a hlp file to a program I just completed. Now I want to open that hlp file with a command on my program. I've tried using the Call Shell(C:/WINDOWS/Cris/desktop/MS Skill Book/Skill Book.exe) method and it works fine, but now I want to send it to a friend and I want him to be able to open that hlp file, but his computer name isn't Cris. Any suggestions? I've also tried this method and it is not working. Command1_Click()...

Visual Basic 4 / 5 / 6

8045

What is ONU?

by: marktang | last post by:

ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...

General

7981

Changing the language in Windows 10

by: Hystou | last post by:

Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...

Windows Server

8467

Problem With Comparison Operator <=> in G++

by: Oralloy | last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...

C / C++

8127

The easy way to turn off automatic updates for Windows 10/11

by: Hystou | last post by:

Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...

Windows Server

6803

AI Job Threat for Devs

by: agi2029 | last post by:

Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...

Career Advice

5994

Access Europe - Using VBA to create a class based on a table - Wed 1 May

by: isladogs | last post by:

The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...

Microsoft Access / VBA

5470

Couldn’t get equations in html when convert word .docx file to html file in C#.

by: conductexam | last post by:

I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...

C# / C Sharp

3952

Trying to create a lan-to-lan vpn between two differents networks

by: TSSRALBI | last post by:

Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...

Networking - Hardware / Configuration

4011

Windows Forms - .Net 8.0

by: adsilva | last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

Visual Basic .NET