Selected Index event not firing - Page 2

moondaddy

I have a dropdown combo box on a form and I have its AutoPostBack property
set to true. When I select something from the list it does a postback and
then the Page_Load event fires followed by it's SelectedIndexCh anged event.

However, when I go back to this control again and select the first item in
the list, it does a postback and the Page_Load event fires, but the
SelectedIndexCh anged doesn't fire. Why does the SelectedIndexCh anged get
skipped when selecting the first item in the list?

In summary, I have a dropdown list. I select the 3rd item in the list and
the SelectedIndexCh anged fires like it should. As I step through the code I
see the selected index = 2. Now when I go back and select the first item in
the list and step through the code I can see the selected index =0 (changed
from 2), but the SelectedIndexCh anged doesn't fire.

How can I resolve this?

Thanks.

--
mo*******@nospa m.com

Nov 18 '05

Subscribe Reply

3993

moondaddy

I hit send with out attaching the text files. here they are:

--
mo*******@nospa m.com
"[MSFT]" <lu******@onlin e.microsoft.com > wrote in message
news:vo******** ******@cpmsftng xa10.phx.gbl...

I can open the solution. But when I double click to open shoppingcart.as px, there was an error. I have attached it in this message.

Luke

Nov 18 '05 #11

[MSFT]

Hello,

I found two files are with same content:

<%@ Page Language="vb" AutoEventWireup ="false"
Codebehind="Bas ePage.aspx.vb" Inherits="BsPgS ample.BasePage" %

Did you miss the code behind file?

Luke
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)

Nov 18 '05 #12

[MSFT]

Hello,

Can you tell me what you want to do in selecteditemcha nged actually? Maybe
I can assis you find a final solution for the problem.

regards,

Luke
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)

Nov 18 '05 #13

Similar topics

56529

set selected index of a ComboBox

by: Steffen Laser | last post by:

Hi group, I have a problem that I already have posted to the german C# newsgroup. Since nobody could help me there, I'd like to try it here again: I set the selected item of a combobox like this: myCombo.SelectedItem = 3; But after that the ComboBox displays only the first entry of the list. When I add the line

C# / C Sharp

1800

Listview selected items, again

by: Eric Jelinek | last post by:

I need a little help here, I have a list view that may contain only a few items. If the size of the listview is larger then what I need to hold the items, and then the user click on whitespace, how can maintain that an item must be selected? Currently in the MouseDown Event I .GetItem(e.X, e.Y) and check to see if it is null, if it is then I set the last item in the list to item.selected=true. Unfortunately, the SelectedIndexChange event is...

C# / C Sharp

3370

RadioButton (or Checkbox) event firing if selected (not changed)

by: tshad | last post by:

Is there a way to allow a user to press a radio button if it is already selected? There is an onCheckedChanged event that fires when the person presses the button and it is isn't selected already. If it is selected, it doesn't fire. This isn't the case with a checkbox. The event fires whether the control is already checked or not. Thanks,

ASP.NET

13851

Drop down list 'selected index changed' not firing on webforms

by: Steve Jones | last post by:

Hi there, I am working with web forms, and am finding that the standard list of combo box events is dramatically reduced when using the dropdownlist. For example, the only event that I can see that will trigger when a user selects a different menu item is 'selected index changed'. I can confirm with a separate button that the index has in fact changed after a pulldown selection takes place, yet the internal 'selected index changed'...

Visual Basic .NET

13394

How to get Selected item in a Databinded CheckBoxList when CheckBoxlist is in a DataList?

by: Patrick.O.Ige | last post by:

I'm binding a CheckBoxlist below in the ItemDataBound(the CheckBoxList is in a Datalist) By doing "li.Selected = True" i can see all the checkBoxes are selected. But what i want is to be able to get a Boolean value TRUE or FALSE when a checkBox is selected. When the checkBoxList was out of the DataList i used "OnSelectedIndexChanged" and it was returning what i wanted but if its in a

ASP.NET

2411

Nested datagrid event firing - item index of parent grid

by: Andy | last post by:

Hello, I have a datagrid within another datagrid. The innder datagrid contains a dropdownlist which fires an event as index change (OnSelectedIndexChanged). I can get the ItemIndex of the dropdownlist using this code below: ((DataGridItem)((DropDownList)Sender).NamingContainer).ItemIndex; This returns the ItemIndex of the dropdownlist of the inner datagrid.

ASP.NET

10379

Anyone: ListView Selected Index change seems to fire twice?

by: n. Smith | last post by:

Hi All, Is it normal that the ListView fires the selectedinexchange event twice? I have a LvLoaners list view item that updates 3 text boxes (code below), when I click on an item. I have set MultiSelect to False. The first click goes as planned, but all subsqequent clicks seem to fire the event twice. The first firing triggers an ArgumentException, resulting in nItem not being initialised. That's why I have the first

Visual Basic .NET

4839

Persisting the currently selected row on a GridView

by: Dick | last post by:

I have a GridView bound to an ObjectDataSource. I have a Button that calls GridView.DataBind. I want the row that is selected before the DataBind to still be selected afterwards. This happens automatically if the data doesn't change. But if records have been added or deleted then it looks as if some code is necessary: I've done this by using GridView.SelectedValue to get the key value of the currently selected Row and then by itterating...

ASP.NET

5815

Asp.net Dropdownlist selected index in changed

by: Santosh | last post by:

Dear all , i am writting following code. if(Page.IsPostBack==false) { try { BindSectionDropDownlist();

ASP.NET

9480

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

10319

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++

10087

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

9947

Discussion: How does Zigbee compare with other wireless protocols in smart home applications?

by: tracyyun | last post by:

Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...

General

6737

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

5380

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

5511

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

4046

transfer the data from one system to another through ip address

by: 6302768590 | last post by:

Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system

C# / C Sharp

2877

Comprehensive Guide to Website Development in Toronto: Expert Insights from BSMN Consultancy

by: bsmnconsultancy | last post by:

In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

General