C# Blink Label Class

Question

I am trying to create a class that makes a particular textbox blink. My code is below:

class Blink
{
    int BlinkCount = 0;

    public void Text(Label Info, string Message)
    {
        Timer tmrBlink = new Timer();
        tmrBlink.Interval = 250;
        tmrBlink.Tick += new System.EventHandler(tmrBlink_Tick);
        tmrBlink.Start();
        Info.Text = Message;
    }

    private void tmrBlink_Tick(object sender, EventArgs e)
    {
        BlinkCount++;

        if (Info.BackColor == System.Drawing.Color.Khaki)
        {
            Info.BackColor = System.Drawing.Color.Transparent;
        }
        else
        {
            Info.BackColor = System.Drawing.Color.Khaki;
        }

        if (BlinkCount == 4)
        {
            tmrBlink.Stop();
        }
    }
}

The idea is, if I type the following code, the selected label would blink to draw user's attention:

Blink.Text(lblControl, "Hello World!");

I don't see a question either. There's a bunch of stuff missing. You need to subscribe the label's Disposed event. And when the blink is stopped, either because the label is disposed or the blink is completed, then you need to unsubscribe the event and dispose the timer. — Hans Passant, Feb 26 '15 at 09:20

score 1 · Accepted Answer · answered Feb 26 '15 at 09:11

This works fine for me...

Blink b = new Blink();
b.Text(label1, "Hello World");


class Blink
{
    int BlinkCount = 0;
    private Label _info;
    private Timer _tmrBlink;

    public void Text(Label info, string message)
    {
        _info = info;
        _info.Text = message;
        _tmrBlink = new Timer();
        _tmrBlink.Interval = 250;
        _tmrBlink.Tick += new System.EventHandler(tmrBlink_Tick);
        _tmrBlink.Start();
    }

    private void tmrBlink_Tick(object sender, EventArgs e)
    {
        BlinkCount++;

        if (_info.BackColor == System.Drawing.Color.Khaki)
        {
            _info.BackColor = System.Drawing.Color.Transparent;
        }
        else
        {
            _info.BackColor = System.Drawing.Color.Khaki;
        }

        if (BlinkCount == 4)
        {
            _tmrBlink.Stop();
            BlinkCount = 0;
        }
    }
}

You should explain what changes you have made that fixed the issue. If this is just a comment explaining that it works as written to you then that should be a comment and not an answer — Sayse, Feb 26 '15 at 09:13
Oh, I didnt declare the controls at the top. Thanks, you guys are fast! — Keylee, Feb 26 '15 at 09:14

C# Blink Label Class

1 Answers1