Cannot disable beep sound on textbox keydown event

Question

Below is my code for disabling beep sound when I press "Enter" on textbox KeyDown() event:

if (e.KeyCode == Keys.Enter)
{
    e.SuppressKeyPress = true;
    SaveData();
    e.Handled = true;
}

But it keeps beeping when I press "Enter" on textbox. What am I doing wrong?

@Dhaval as you see from my code I am also setting `Handled` and `SuppressKeyPress` to true, but it's not working. — firefalcon, Oct 07 '13 at 08:08
Maybe sound is made by something else? Can't think of what, perhaps another `TextBox` or the form. — Sinatr, Oct 07 '13 at 08:12
@Sinatr `SaveData()` private void pops messagebox if some textbox is not filled. Also after saving data it shows MessageBox with success message. Maybe that's the cause? — firefalcon, Oct 07 '13 at 08:14
Dupe http://stackoverflow.com/questions/13952932/disable-beep-of-enter-and-escape-key-c-sharp — Bit, Oct 07 '13 at 17:11
@N4TKD it's not a duplicate, are you blind? I am using the correct answer from that post, but it didn't help in my case. — firefalcon, Oct 08 '13 at 08:35
@Sinatr "Are you blind" really!!!is that how you talk to people trying to help you? — Bit, Oct 08 '13 at 11:33
If you wanna help or comment Duplicate, pay attention to the question first. — firefalcon, Oct 08 '13 at 12:21
did even look at your question and the link I posted, no one know what SaveData() was maybe you could write better questions in the future. — Bit, Oct 08 '13 at 15:16
`SuppressKeyPress` and `Handled` are set to True in my code as well. But didn't help, so I was looking for other solutions. Your link doesn't help in my case, so just do you business — firefalcon, Oct 10 '13 at 03:57

score 6 · Answer 1 · answered Oct 07 '13 at 17:19

From your comments, showing a MessageBox will interfere with your setting of the SuppressKeyPress property.

A work-around is to delay the showing of the MessageBox until after the method is completed:

void TextBox1_KeyDown(object sender, KeyEventArgs e) {
  if (e.KeyCode == Keys.Enter) {
    e.SuppressKeyPress = true;
    this.BeginInvoke(new Action(() => SaveData()));
  }
}

user959631 · Accepted Answer · 2021-03-10T12:02:41.337

2

EDIT

Please note that the answer provided by LarsTech (below) is a far better approach.

Sorry, I just realised that you have a MessageBox displaying.

What you can do is have a Timer and have it fire off the SaveData() method.

private void Timer1_Tick(System.Object sender, System.EventArgs e)
{
    Timer1.Enabled = false;
    SaveData();
}

Then in your TextBox keypress event, do this:

if (e.KeyCode == Keys.Enter) {
    e.SuppressKeyPress = true;
    Timer1.Enabled = true;
}

That seems to work...

edited Mar 10 '21 at 12:02

answered Oct 07 '13 at 17:37

user959631

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Instead of using Timer, the more elegant solution is using this.BeginInvoke() to delay the MessageBox and prevent beeping. See LarsTech answer below. – Maris B. Mar 10 '21 at 11:52
@MarisB. Apologies, this answer was made a long time ago when I was just starting out. I agree that the answer below is a better approach. I can update my answer. – user959631 Mar 10 '21 at 11:59

score 0 · Answer 3 · answered Oct 07 '13 at 17:05

You could try creating your own textbox and handle the keydown event like so:

public class MyTextBox : TextBox
{

    protected override void OnKeyDown(KeyEventArgs e)
    {
        switch (e.KeyCode)
        {          
            case (Keys.Return):
              /*
               * Your Code to handle the event
               * 
               */                   
                return;  //Not calling base method, to stop 'ding'
        }

        base.OnKeyDown(e);
    }
}

Cannot disable beep sound on textbox keydown event

3 Answers3

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