CODEWITHSUNDEEP
c#events
josef_skywalker
josef_skywalker

Reputation: 1117

Assign Keydown event to all textBoxes

I am trying to assign a keyDown event to all textBoxes in one form.

So far my code: 

        void listenTextBox_KeyDownEvent(Control control)
    {
        foreach (Control ctrl in control.Controls)
        {
            if (ctrl is TextBox)
            {
                TextBox tb = (TextBox)ctrl;
                tb.KeyDown += new EventHandler(textBox_KeyDown);
            }
            else
            {
                listenTextBox_KeyDownEvent(ctrl);
            }
        }
    }
    void textBox_KeyDown(object sender, KeyEventArgs e)
    {
        if (e.KeyCode == Keys.Enter)
        {
            TextBox tb = (TextBox)sender;
            MessageBox.Show("Great Enter was hit");
        }

    }

But I am running in an error which I don't understand:

No overload for 'textBox_KeyDown' matches delegate 'EventHandler'

Any advice?

Upvotes: 0

Views: 1176

Answers (1)

Paulo Junior
Paulo Junior

Reputation: 266

Try to change 

tb.KeyDown += new EventHandler(textBox_KeyDown);

for 

tb.KeyDown += new KeyEventHandler(textBox_KeyDown);

Upvotes: 1

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