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Add Click Event Listener for any control in entire solution

Is there a way to add a Click Event Listener to any Button?
I want to fire a method when any button is clicked from any form in the solution.
I know i can add an event listener for each button on its own but it will be quite redundant in my case.
Thanks

what is the difference between Control.OnClick and Control.InvokeOnClick

i'm just wondering what the difference is between Control.OnClick and Control.InvokeOnClick methods.
the second thing i wonder ise, when it is asp.net they talk about 3 componenets: Click event, OnClick method, and button1_click eventhandler. but when it is desktop appcliatons they talk about only 2 componenets, Click event and its eventhandler. why is the onclik(invokeonclick) not mentioned at all?

OnClick allows you to add a handler for when the Click event occurs on the control.
InvokeOnClick will "Raise the Click event for the specified control".
So if you have assigned a handler to OnClick and then call InvokeOnClick on that control then your handler will be called.
Web is different. This answer may help you for invoking click on a 'web' button.

Handling Gridview.RowEdit

Quick one:
I've created
public event GridViewEditEventHandler invGridEdit {}.
Can I put code in this event to allow my end user to edit the DB entry, or do I need to point this to a new method for editing?
Edit: It's probably obvious that this is the first time I've looked at events. My apologies if this is a stupid question.

Check the documentation.
In general you have to register your own methods on specific events:
When you create a GridViewEditEventHandler delegate, you identify the
method that will handle the event. To associate the event with your
event handler, add an instance of the delegate to the event. The event
handler is called whenever the event occurs, unless you remove the
delegate. For more information about event-handler delegates, see
Events and Delegates.
In your case:
gridview.RowEditing += new GridViewEditEventHandler(myEditHandler);
Registered methods must have the signature your handler expects. In your case it's the delegate
public delegate void GridViewEditEventHandler(
Object sender,
GridViewEditEventArgs e
)
So the method myEditHandler looks like
void myEditHandler(Object sender, GridViewEditEventArgs e)
To access the firing gridview, perform a cast on sender:
GridView gv = (GridView)sender;
Your method is now called, if the event RowEditing is fired. This is the case, when:
The RowEditing event is raised when an Edit button (a button with its
CommandName property set to "Edit") is clicked, but before the
GridView control enters edit mode. This allows you to provide an
event-handling method that performs a custom routine, such as
canceling the edit operation, whenever this event occurs.
Hope it helps =)

Basically this is for any code you want to run to set up the editing on the grid.
From here:
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridviewediteventhandler(v=vs.110).aspx
The RowEditing event is raised when an Edit button (a button with its CommandName property set to "Edit") is clicked, but before the GridView control enters edit mode. This allows you to provide an event-handling method that performs a custom routine, such as canceling the edit operation, whenever this event occurs.
When you create a GridViewEditEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate. For more information about event-handler delegates, see Events and Delegates.

c# is it possible to trigger the button_click event with code?

i dont want to click the button. instead, i just want to run the click event code. how would i do this?

button1_click(null, new EventArgs() );

Option: use PerformClick().
Take a look here: How to: Call a Button's Click Event Programmatically.
The advantage here is that the event behavior will be exactly the same as a real button click (as oposed of calling button1_click directly).
But none of this options is the best IMHO. If you need to call the event handler code, you need a new method! Just refactor the old button1_click into a new, standard method and call it from wherever you want.

From inside or outside the Form where the Button is? Simplest thing is to just call the function:
Button1_Click(Button1, EventArgs.Empty);

Try a keybd_event with p/invoke http://msdn2.microsoft.com/en-us/library/ms646304(VS.85).aspx

I sometimes do that by actually calling the event handler function, that's if I actually implemented it.
Literally call it like:
button1_Click(this, new EventArgs());

Can we Fire the button CLick event on Windowload In WPf C#

i want to FIre the button Click event When My Window is Loaded..
How Can i Achieve it in Wpf?

Create a single function with the shared behavior in your window, then call that function from both your loaded handler and your click handler.

As per this blog post in WinForms this was really easy by just calling PerformClick(), but in WPF you can do it with Automation, however as a commenter mentioned it's really easy if you have access to the button to just use RaiseEvent.
someButton.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
But as previously answered, if you only have a single handler that needs to be notified, then simply call that handler method directly.

You could use Automation to do it aswell - I've seen this suggested some places as the more flexible/robust method to use, but it seems a bit heavy weight to me compared to just calling the method you already have directly.

in you page_loaded event handler method, make a call to the click event like this:
_buttonName_click(sender, new RoutedEventArgs())

Trgger this event on Button whic u wanted to click
button.performclick();