DropDownList events not firing

Waldy

Hi there,
I have a web form with some DropDownList controls that I am
trying to trap the selection change and run the attached server code.
However, even thought the controls have the runat property set to server,
the event code does not get executed. Anyone have any ideas?

Jun 27 '08 #1

Subscribe Post Reply

1445

Madhur

Can you post some code ? Make sure that AutoPostBack property of
DropDownList is set to True.

--
Madhur

"Waldy" <so*****@microsoft.comwrote in message
news:OY**************@TK2MSFTNGP02.phx.gbl...

Hi there,
I have a web form with some DropDownList controls that I am
trying to trap the selection change and run the attached server code.
However, even thought the controls have the runat property set to server,
the event code does not get executed. Anyone have any ideas?

Jun 27 '08 #2

Waldy

"Madhur" <sd*@df.comwrote in message
news:68**********************************@microsof t.com...

Can you post some code ?

Not easily as it is a large project.

>Make sure that AutoPostBack property of DropDownList is set to True.

I tried that, and now the form gets posted back when a selection is made,
but the dropdown events code still does not get executed.

Jun 27 '08 #3

David Wier

Please be more specific

The two comments you made contradict each other. When you make a selection,
the Dropdownlist OnselectedChanged event is the event that's firing, to
cause the postback.

What (exactly) are you referring to when you say "dropdown events code"

David Wier
http://aspnet101.com
http://iWritePro.com - One click PDF, convert .doc/.rtf/.txt to HTML with no
bloated markup
"Waldy" <so*****@microsoft.comwrote in message
news:Oj**************@TK2MSFTNGP02.phx.gbl...

>
"Madhur" <sd*@df.comwrote in message
news:68**********************************@microsof t.com...
>Can you post some code ?

Not easily as it is a large project.

>>Make sure that AutoPostBack property of DropDownList is set to True.

I tried that, and now the form gets posted back when a selection is made,
but the dropdown events code still does not get executed.

Jun 27 '08 #4

Waldy

Hi David,

The two comments you made contradict each other. When you make a
selection, the Dropdownlist OnselectedChanged event is the event that's
firing, to cause the postback.

The page is re-loaded.

What (exactly) are you referring to when you say "dropdown events code"

The OnSelectedIndexChanged code in the code behind file.

Jun 27 '08 #5

Similar topics

Help - DropDownList Blues

by: Frank Rocco | last post by:

Hello, I have a DropDownList that I populate from an odbc datasource in code. When I bring up the form for editing, how do I select the value in the DropDownList based on a value stored in the...

C# / C Sharp

SelectedIndexChanged event of a DropDownList sometimes not firing

by: Lew Barnesson | last post by:

Hi All, I have looked and looked for an answer to the following problem (without success), and would be very grateful for a solution. The problem: The SelectedIndexChanged event code of an...

ASP.NET

Dynamically created DropDownList not firing events or persisting viewstate

by: bryanp10 | last post by:

I have a page that is almost entirely dynamically created. Textboxes and checkbox are working fine, firing events, and persistent their state. DropDownList is giving me a major headache. All...

ASP.NET

OnSelectedIndexChanged event not firing on a DropDownList within a DataList

by: Paul L | last post by:

Hi, I have an issue with the OnSelectedIndexChanged event not firing for a DropDownList control which is in the ItemTemplate of a DataList. I have made an exact copy of the DropDownList control,...

ASP.NET

dropdownlist selectedIndexChanged event not firing

by: CurlyFro | last post by:

i have a userControl (.ascx) that has a dropdownlist embedded in a datagrid. the dropdownlist autopostback is set to true. why isn't the selectedIndexChanged firing? Private Sub...

ASP.NET

Event Not Firing for DropdownList in DataGrid

by: AdrEsqu | last post by:

I am trying to use AutoPostback to retrieve the value that was selected in my dropdownlist. The event is not firing for the dropdownlist because the datagrid is being built after the Lifecycle...

C# / C Sharp

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

DropDownList.SelectedIndexChanged Not Consistent

by: jnoody | last post by:

The problem I am having is with the SelectedIndexChanged event not always firing or the SelectedIndex property not being correct when the event does fire. The code is below, but here are some...

ASP.NET

DropDownList in a Repeater - OnSelectedIndexChange not firing

by: MattB | last post by:

I have a (.Net 1.1) form with a Repeater and a DropDownList in the ItemTemplate. I programmatically make the DDL Autopostback = true at runtime based on the bound data. That works - I can see the...

ASP.NET

Easy Steps to Fix "Canon Printer Won't Connect to WiFi Network"

by: taylorcarr | last post by:

A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...

General

How to turn on java script in a villaon keypad mobile phone

by: Charles Arthur | last post by:

How do i turn on java script on a villaon, callus and itel keypad mobile phone

Java

Basic Javascript concepts

by: aa123db | last post by:

Variable and constants Use var or let for variables and const fror constants. Var foo ='bar'; Let foo ='bar';const baz ='bar'; Functions function $name$ ($parameters$) { } ...

Javascript

Batch import of multiple excel files into the database

by: ryjfgjl | last post by:

If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...

Data Management

Merging data from multiple Excel files

by: ryjfgjl | last post by:

In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...

Data Management

Navigating the Data Structures and Algorithms (DSA)

by: BarryA | last post by:

What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...

Algorithms / Advanced Math

Is that possible of reading the .csv file in column wise and the column have different lengths ?

by: Sonnysonu | last post by:

This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...

C / C++

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,...

General

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,...

C / C++