How to Prevent the Click Event when a Button is Clicked

[Charles Law]

When I click a button I don't want the click event to fire. Is this
possible?

In fact, what I would really like is to be able to intercept the click
event, perform some action, and then prevent the click from passing through
to the button.

Any help or suggestions much appreciated.

Charles

[Klaus H. Probst]

Why don't you just remove or condition the code from the Click event?

The button will do nothing by itself.

--
Klaus H. Probst, MVP
http://www.vbbox.com/

"Charles Law" <bl***@nowhere. com> wrote in message
news:eU******** ******@TK2MSFTN GP11.phx.gbl...

When I click a button I don't want the click event to fire. Is this
possible?

In fact, what I would really like is to be able to intercept the click
event, perform some action, and then prevent the click from passing through to the button.

Any help or suggestions much appreciated.

Charles

[Charles Law]

Hi Klaus

I actually have a lot of buttons, and text boxes, and dropdowns, and so on
that I want to do this for. To condition the code in every single one would
be tedious and repetitive.

I am really looking for the principle so that I can apply it to other types
of control as well. For example, I also want to prevent a dropdown from
dropping down, and prevent the button from appearing depressed when it is
clicked. In a nutshell, I want the control to behave like it never got the
click / mouse down event.

Charles
"Klaus H. Probst" <us*******@vbbo x.com> wrote in message
news:%2******** ********@TK2MSF TNGP09.phx.gbl. ..

Why don't you just remove or condition the code from the Click event?

The button will do nothing by itself.

--
Klaus H. Probst, MVP
http://www.vbbox.com/

"Charles Law" <bl***@nowhere. com> wrote in message
news:eU******** ******@TK2MSFTN GP11.phx.gbl...

When I click a button I don't want the click event to fire. Is this
possible?

In fact, what I would really like is to be able to intercept the click
event, perform some action, and then prevent the click from passing

through

to the button.

Any help or suggestions much appreciated.

Charles

[Klaus H. Probst]

Well that's possible, you can simply inherit from the control itself and
make it do anything you want.

For example, you could put some code in the OnClick method and so your stuff
there and prevent things from bubbling up to the container.

But that assumes that you started there - it's going to be hard to retrofit
to your existing code, especially if you have a lot of it.
--
Klaus H. Probst, MVP
http://www.vbbox.com/
"Charles Law" <bl***@nowhere. com> wrote in message
news:e#******** *****@tk2msftng p13.phx.gbl...

Hi Klaus

I actually have a lot of buttons, and text boxes, and dropdowns, and so on
that I want to do this for. To condition the code in every single one would be tedious and repetitive.

I am really looking for the principle so that I can apply it to other types of control as well. For example, I also want to prevent a dropdown from
dropping down, and prevent the button from appearing depressed when it is
clicked. In a nutshell, I want the control to behave like it never got the
click / mouse down event.

Charles
"Klaus H. Probst" <us*******@vbbo x.com> wrote in message
news:%2******** ********@TK2MSF TNGP09.phx.gbl. ..

Why don't you just remove or condition the code from the Click event?

The button will do nothing by itself.

--
Klaus H. Probst, MVP
http://www.vbbox.com/

"Charles Law" <bl***@nowhere. com> wrote in message
news:eU******** ******@TK2MSFTN GP11.phx.gbl...

When I click a button I don't want the click event to fire. Is this
possible?

In fact, what I would really like is to be able to intercept the click
event, perform some action, and then prevent the click from passing

through

to the button.

Any help or suggestions much appreciated.

Charles

[Michael Maes]

Hi Charles,

Seems like you want to create your own Control-Classes.

Do something like:

Namespace Law
Public Class myButton
Inherits System.Windows. Forms.Button

' Add your code
Namespace Law
Public Class myComboBox
Inherits System.Windows. Forms.ComboBox

' Add your code

Of course you have to fill in the details yourself, use attirbutes, etc.....

HTH,

Michael

[Jeff Johnson [MVP: VB]]

"Charles Law" <bl***@nowhere. com> wrote in message
news:eU******** ******@TK2MSFTN GP11.phx.gbl...

When I click a button I don't want the click event to fire. Is this
possible?
No. If there's an event handler, the event will fire.
In fact, what I would really like is to be able to intercept the click
event, perform some action, and then prevent the click from passing through to the button.

The click can "pass through" to the button all day long and nothing will
happen other than it will appear pressed and then unpressed. That's all the
button will do on its own. If you don't want YOUR CODE executed when a Click
event occurs, write more code to detect this condition and then simply DON'T
EXECUTE your code.

[Herfried K. Wagner [MVP]]

* "Charles Law" <bl***@nowhere. com> scripsit:

When I click a button I don't want the click event to fire. Is this
possible?

In fact, what I would really like is to be able to intercept the click
event, perform some action, and then prevent the click from passing through
to the button.

\\\
Imports System
Imports System.Windows. Forms

Public Class UserControl1
Inherits Button

Private m_Clickable As Boolean

Public Property Clickable() As Boolean
Get
Return m_Clickable
End Get
Set(ByVal Value As Boolean)
m_Clickable = Value
End Set
End Property

Protected Overrides Sub OnClick(ByVal e As EventArgs)
If Me.Clickable Then
MyBase.OnClick( e)
End If
End Sub
End Class
///

Then you can use this button instead of the standard Windows Forms
button. One possible extension would be to provide a 'BeforeClick'
event that passes in a 'BeforeClickEve ntArgs' object that provides a
'Cancel' property. If the event is handled and 'Cancel' is set to
'True', the 'Click' event would not be raised.

The code above will extend the standard button with a 'Clickable'
property. If this property is set to 'False', the 'Click' event won't
fire.

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>

[Charles Law]

Thanks again Klaus.

Along with the other responses, I think everyone is pointing in the same
direction: basically, I have to create my own control and inherit from
button, etc. As you suggest, though, I'm not starting from there, and retro
fitting is not really an option.

Ho hum.

Charles
"Klaus H. Probst" <us*******@vbbo x.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..

Well that's possible, you can simply inherit from the control itself and
make it do anything you want.

For example, you could put some code in the OnClick method and so your stuff there and prevent things from bubbling up to the container.

But that assumes that you started there - it's going to be hard to retrofit to your existing code, especially if you have a lot of it.
--
Klaus H. Probst, MVP
http://www.vbbox.com/
"Charles Law" <bl***@nowhere. com> wrote in message
news:e#******** *****@tk2msftng p13.phx.gbl...

Hi Klaus

I actually have a lot of buttons, and text boxes, and dropdowns, and so on that I want to do this for. To condition the code in every single one

would

be tedious and repetitive.

I am really looking for the principle so that I can apply it to other

types

of control as well. For example, I also want to prevent a dropdown from
dropping down, and prevent the button from appearing depressed when it is clicked. In a nutshell, I want the control to behave like it never got the click / mouse down event.

Charles
"Klaus H. Probst" <us*******@vbbo x.com> wrote in message
news:%2******** ********@TK2MSF TNGP09.phx.gbl. ..

Why don't you just remove or condition the code from the Click event?

The button will do nothing by itself.

--
Klaus H. Probst, MVP
http://www.vbbox.com/

"Charles Law" <bl***@nowhere. com> wrote in message
news:eU******** ******@TK2MSFTN GP11.phx.gbl...
> When I click a button I don't want the click event to fire. Is this
> possible?
>
> In fact, what I would really like is to be able to intercept the click > event, perform some action, and then prevent the click from passing
through
> to the button.
>
> Any help or suggestions much appreciated.
>
> Charles
>
>

[Charles Law]

Hi Michael

Seems like I *don't* really want to create my own class, but it seems that
it is my only option :-(

There has to be another way, doesn't there?

Charles
"Michael Maes" <mi*****@merlot .com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..

Hi Charles,

Seems like you want to create your own Control-Classes.

Do something like:

Namespace Law
Public Class myButton
Inherits System.Windows. Forms.Button

' Add your code
Namespace Law
Public Class myComboBox
Inherits System.Windows. Forms.ComboBox

' Add your code

Of course you have to fill in the details yourself, use attirbutes, etc.....
HTH,

Michael

[Charles Law]

Hi Jeff

As I mentioned, I have a lot of controls already, and retro-fitting
conditional code will be problematic. I even favour the inheritance route at
this stage, but I'm not happy.

But, I will persevere.

Charles
"Jeff Johnson [MVP: VB]" <i.***@enough.s pam> wrote in message
news:e8******** ******@TK2MSFTN GP09.phx.gbl...

"Charles Law" <bl***@nowhere. com> wrote in message
news:eU******** ******@TK2MSFTN GP11.phx.gbl...

When I click a button I don't want the click event to fire. Is this
possible?
No. If there's an event handler, the event will fire.

In fact, what I would really like is to be able to intercept the click
event, perform some action, and then prevent the click from passing

through

to the button.

The click can "pass through" to the button all day long and nothing will
happen other than it will appear pressed and then unpressed. That's all

the button will do on its own. If you don't want YOUR CODE executed when a Click event occurs, write more code to detect this condition and then simply DON'T EXECUTE your code.