473,796 Members | 2,741 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Button.Init? how Do I know if click event has been fired? TextBox.TextCha nged event before Button.Click in a CompositeCustom Control.

Hello

I have the following situation: (everything is dynamic (controls.add))

1. Button.Init {
WasButtonClickF ired = true
}

2. TextBox.TextCha nged {
WasButtonClickF ired?
}

3. ImageButton.Cli ck {
}
I need a way to get the TextChanged event not to fire or at least to know if
the Click event of a button has been fired.

Thanks.
/ jorge

Nov 18 '05 #1
2 2197
I'm not entirely sure of what you're asking, but I have encountered two things which prevent an event handler from dealing with dynamically added control events

1) You need to add the handler. For instance
Suppose I have a table cell 'td' which I want to add a linkbutton to programatically ..

Dim lb as new LinkButto
' add all the stuff to the linkbutton..

'Add the handle
AddHandler lb.OnClick, AddressOf me.lbEventHandl e

'And the lbEventHandler would be your event handler.

2) Also, look to make sure that you have the controls created again for the postback. If they aren't around after you click on them, the systme won't know what to do

Hope that helps
Andrew Wied
Nov 18 '05 #2
Hi Andrew,

There are no problems with the events. They fire as they should. I recreate
them in postbacks and all that.

My question is concerning the fact that TextChanged fires (the event order
is random right?) before a button event I have from a LinkButton. Now, I
need to know if the LinkButton (in this case it's a cancel) has been pressed
so that I can handle my data in the TextChanged event.

I could not use the TextChanged event and instead load the ViewState and
compare old with new to set the new in case there wasnt a Cancel. But the
problem is that would take even more time to implement.

Another solution would be to learn how to be a gardener and change jobs. or
wait for Mono and change it so it works MY way.

Thanks,
/ jorge

"Andrew Wied" <an*******@disc ussions.microso ft.com> wrote in message
news:F3******** *************** ***********@mic rosoft.com...
I'm not entirely sure of what you're asking, but I have encountered two things which prevent an event handler from dealing with dynamically added
control events.
1) You need to add the handler. For instance:
Suppose I have a table cell 'td' which I want to add a linkbutton to programatically ...
Dim lb as new LinkButton
' add all the stuff to the linkbutton...

'Add the handler
AddHandler lb.OnClick, AddressOf me.lbEventHandl er

'And the lbEventHandler would be your event handler.

2) Also, look to make sure that you have the controls created again for the postback. If they aren't around after you click on them, the systme
won't know what to do.
Hope that helps,
Andrew Wied

Nov 18 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

3
4084
by: Aymer | last post by:
i created a new button object. how do i attach an event on it? thanx for your help. Dim cc As ColorConverter = new ColorConverter() Dim b = new button() b.ID = "SelectedDate" b.BorderStyle = 1 b.forecolor = cc.ConvertFromString("red") b.BackColor = cc.ConvertFromString("white")
4
3909
by: Anatoly | last post by:
Put any control on web page. create Init event for ths control. Write Response.Write("here") inside this event. Compile\build\run. I never saw "here" string appear on web page. Why???
4
4034
by: Mark Lingen | last post by:
I've found a problem with postback event handling and webcontrol buttons. Try out the following code in an ASP.Net project and you will see. Create a web project in VB.Net and drop this code ontop of the webform1: Public Class WebForm1 Inherits System.Web.UI.Page #Region " Web Form Designer Generated Code "
1
2049
by: Spencer H. Prue | last post by:
I have a textbox and a button on my asp.net form. I have some Smtp code in my button click procedure. When the user hits the return for the textbox the button procedure runs. When the button is clicked the button procedure also runs. This fine so I get the Smtp code to run either way. The problem is that the user sometimes hits return AND clicks the "submit" button so the Smtp code gets executed twice. Should I use Application state and a...
2
1462
by: moi | last post by:
Hello, i would like a sample code to call a button click with the event "textchanged" of a textbox. I just would like to valide a textbox with the textchanged event and not to click on the submit button ... Thanks for your sample .. Bye !
0
1312
by: moi | last post by:
Hello, I have a formview with a textbox and a button with an Insert commandname. I have put a textchanged event without a autopostback and i see that when i click the button, the textchanged's event start before the button click's event. It modifies my textbox.text before insert the data and that's what i want... it's the normal behavior ? will it always be like that ?? Thanks for your answer ..
3
4294
by: Robert W. | last post by:
I'm new to ASP.net programming so excuse my ignorance if the following question seems overly simplistic. I've created a simple Login form with 3 primary WebControls: - A TextBox for the Username - A TextBox for the Password - A Button labelled "Submit" If the user enters a correct username/password combination then he's taken to another page. But if either or both are incorrect then a simple message
5
2166
by: rn5a | last post by:
Consider the following user control which resides in Address.ascx: <script runat="server"> Public Property Address() As String Get Address = txtAddress.Text End Get Set(ByVal value As String) txtAddress.Text = value End Set
5
5248
by: S_K | last post by:
This is a weird problem.. I have a page with a textbox and a button (along with a bunch of other stuff). Both the textbox and the button have their SEPERATE events defined for the textchanged and click events. When I change the text in the textbox the textchanged event is called as expected. But the button click event is also called!? Whats with that?!
0
9685
marktang
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...
0
9535
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,...
1
10201
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,...
0
9061
agi2029
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...
1
7558
isladogs
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...
0
5454
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...
0
5582
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
4130
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
2
3744
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.