MouseClick

Question

Hi,

My goal is: when I click mouse on some control and hold CTRL button I'll get form that gives me possibility to change user right to this control. On a single button it looks like:

if (Control.ModifierKeys == Keys.Control && Keys.Control == Keys.Control)

{

frmUsersGroups frmUsersGroups = new frmUsersGroups(this.Name, sender.ToString());

frmUsersGroups.ShowDialog();

}

else

{//open some form}

Bu I don't want to place this code on every control click event. Is there any possibility to do that globaly in whole application ? I'd like to click on some control, recognise it's type, name, parent form, etc...

regards

Sam Hobbs · Answer

There are at least a couple of ways of doing it. You can do as Jure suggests; derive controls from other controls. Another possibility is to create UserControls that contain other controls. Another possibility is to enumerate all the forms and all the controls in each form and add an event handler for every control. You probably need to be careful about doing that; there might be some controls that would be a problem if you add the event handler for them. There have been similar questions in these forums with answers a few months ago.

Jure · Answer

If you have small range of different controls (i.e. just whole lotta buttons and a few textboxes), you could create your own custom control that inherits another one and create a static event for it. For example, you'd create a class called "MyButton" which inherits System.Windows.Forms.Button, then you'd create a static event, and last, you'd need to override OnClick, so that it calls your event. Now you just need to set the event once for all buttons, once for all textboxes... BUT, if you'll be setting event only once (won't add/remove functions from it later), then you can skip the whole static event deal, write a function instead (inside your inheriting control) and call it in overridden OnClick.

MouseClick

Answers (2)