C# KeyEvent doesn't log the enter/return key

Question

Hey all,

I've been making this login form in C# and I wanted to 'submit' all the data as soon as the user either clicks on submit or presses the enter/return key.

I've been testing a bit with KeyEvents but nothing so far worked.

void tbPassword_KeyPress(object sender, KeyPressEventArgs e)
{
    MessageBox.Show(e.KeyChar.ToString());
}

The above code was to test if the event even worked in the first place. It works perfectly, when I press 'd' it shows me 'd' when I press '8' it shows me '8' but pressing enter doesn't do anything.

So I though this was because enter isn't really bound to a character but it did show backspace, it worked just fine so it got me confused about why it didn't register my enter key.

So the question is: How do I log the enter/return key? and why doesn't it log the key press right right now like it should?

note: I've put the event in a textbox

tbPassword.KeyPress += new KeyPressEventHandler(tbPassword_KeyPress);

So it fires when the enter button is pressed WHILE the textbox is selected (which is was the whole time of course) maybe that has something to do with the execution of the code.

Answer 1

Do you have a button defined as the default action?

If so then that control will gobble up the Enter key.

And maybe that is your answer. You need to set the DefaultAction property to true on your submit button.

Answer 2

Try the KeyDown event instead.

private void textBox1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.Enter)
    {
        MessageBox.Show("Enter");
    }
}

Answer 3

Perhaps you should use the "AcceptButton" of the form to set it to the submit button. Think that is what you what really...

Answer 4

You have left out a vital bit, you must set the Handled property to true or false depending on the condition...

void tbPassword_KeyPress(object sender, KeyPressEventArgs e)
{
    MessageBox.Show(e.KeyChar.ToString());
    if (e.KeyCode == Keys.Enter){
      // This is handled and will be removed from Windows message pump
      e.Handled = true; 
    }
}

Answer 5

Try this

textBox1.KeyPress += new KeyPressEventHandler(textBox1_KeyPress);

void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
    if (e.KeyChar == '\r')
    {
        MessageBox.Show("Enter Key Pressed", "Enter Key Pressed", MessageBoxButtons.OK);
    }
}

Answer 6

//trying to make the Enter key work when pressed to execute the calculation void calculateButton_KeyPress(object sender, KeyPressEventArgs e) { if (e.KeyChar == '\r') MessageBox.Show("Enter Key Pressed", "Enter Key Pressed", MessageBoxButtons.OK); }

Hey all, tried this but it does not work for me. I can tab along until I am on the calculationButton and hit Enter but it does not execute.

It is declared like this in ....designer.cs:

this.calculateButton.KeyPress += new System.Windows.Forms.KeyPressEventHandler(calculateButton_KeyPress);

Also have set the calculateButton KeyPress Properties to calculateButton_KeyPress, and its MouseClick Properties to button1_MouseClick