Calling a controls parent event

[Geespot]

Hi,

I'm making a control and I want to call an event in the control thats parent to my control.

I detect when the mouse button has been pressed on my control by using

Protected Overrides Sub OnMouseDown(ByVal e As System.Windows.Forms.MouseEventArgs)
        _x = e.X : _y = e.Y
        Me.BringToFront()
 
 
        'Dim c As Control = Me.Parent
    End Sub

Now I want to call the me.Parent OnClick event.

I simply don't know how to do it!

Any help would be much appreciated
Thanks

[Andy]

i hope someone has the answer cause I am having the same problem.

[taxes]

Hi,

You guys are probably way ahead of me but I can't understand what you are trying to do.

If you are talking about VB.NET Windows Forms Controls what is the point of creating a derived control and using an event to refer to an event in the base control which responds to virtually the same fire?

What is the "OnClick Event"? There is an OnClick method in HTM but all the standard controls I have ever seen have the Click Event.

If your object is to use several derived controls and save coding why not juse use an ordinary Sub?

[Geespot]

taxes the reason for me is that I'm actually creating two controls.

The first control acts as a container for the second control im designing. And because I want some kind of relationship between to the two controls I need a way.

When my child control is clicked, the parent container control needs to do something.

I managed to solve my problem though
When the control mousedown event is fire, I would raise an event.
Then on the parent control, I would capture that event and do the necessary actions I needed.

[pax]

Originally posted by Geespot
I managed to solve my problem though
When the control mousedown event is fire, I would raise an event.
Then on the parent control, I would capture that event and do the necessary actions I needed.

Which just happens to be the correct way of doing it...

[taxes]

Originally posted by Geespot
taxes the reason for me is that I'm actually creating two controls.

The first control acts as a container for the second control im designing. And because I want some kind of relationship between to the two controls I need a way.

When my child control is clicked, the parent container control needs to do something.

I managed to solve my problem though
When the control mousedown event is fire, I would raise an event.
Then on the parent control, I would capture that event and do the necessary actions I needed.

OK.

For my education please. Would not either of the following suffice?

1. In the Click event of the second control, call the click event of the first control

2. Add the click event of the second control to the handles of the first control click event. (Or is that what you mean by "Capture" which is the generic name for a VB.Net class/method?)


And what's the "OnClick Event"? I know it's purpose is obvious but is is a custom event you have written?

Many thanks for your response.

[pax]

Originally posted by taxes
And what's the "OnClick Event"? I know it's purpose is obvious but is is a custom event you have written?

When inheriting you have some protected methods.
OnClick, OnMouseDown etc.

These events are fired before the event is relayed to the user so you can catch them.
Then it's up to you wether you want to relay them.

Protected Sub OnClick()
'This sub is called when the user clicks the control
'If you do nothing in here, the Click event will not be called.
'If you want to relay the event use MyBase.OnClick and the Click event will be raised as normal.
'This way, you have the chance to do something before or after the user or even cancelling the event entirely.
End Sub

I hope this makes sense

[taxes]

Hi Pax,

Thank you.

Is that restricted to inherited controls? I have only inherited forms and there is no OnClick etc. event involved there.

I must experiment.

[pax]

Hi.

It's there allright.

In the object combo select (Overrides)
In the event combo you should have several OnWhatEver events.

[taxes]

Originally posted by pax
Hi.

It's there allright.

In the object combo select (Overrides)
In the event combo you should have several OnWhatEver events.

Thanks,

I've never looked in the Overrides section

[pax]

Your welcome

These are very usefull when creating controls.