CODEWITHSUNDEEP
c#winforms
coddding
coddding

Reputation: 343

Handle HelpButton Click Event?

I've recently been messing around with the help button in which you can add to windows form title bar by simply doing the following:

frm.MaximizeBox = false;
frm.MinimizeBox = false;
frm.HelpButton = true;

THE problem is that I'm trying to catch the click event of when this HelpButton is clicked AND then display a MessageBox(), I've looked into _HelpButtonClickedbut haven't been able to get it working properly (if someone could show a example of that, that would be helpful).

I've tried picking up the click event the same way that you would use when catching the click event of a normal button, but this hasn't worked. Here is a example shown below of what I've tried, the problem is that it DOESN'T work, when HelpButton is pressed the MessageBox() does NOT pop up:

    frm.MaximizeBox = false;
    frm.MinimizeBox = false;
    frm.HelpButton = true;
    frm.HelpButton.Click += HelpButtonClicked;

    static void HelpButtonClicked()
    {
        MessageBox.Show("Help Button Clicked");//Doesn't work :(
    }

Any help would be appreciated!

Upvotes: 3

Views: 3584

Answers (2)

Ivan Stoev
Ivan Stoev

Reputation: 205619

Your form should handle the HelpButtonClicked event (not a button named HelpButton):

frm.HelpButtonClicked += HelpButtonClicked;

static void HelpButtonClicked(object sender, CancelEventArgs e)
{
    MessageBox.Show("Help Button Clicked");//Works :)
}

Upvotes: 6

Brian
Brian

Reputation: 1164

It looks like you are attempting to use the bool property to wire up the event.

You need to use: Form.HelpButtonClicked

Reference: https://msdn.microsoft.com/en-us/library/system.windows.forms.form.helpbuttonclicked(v=vs.110).aspx

Upvotes: 1

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