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same Question as this one but the last answer is the one i wanted.. I need c# wpf... i tried the last answer but i can't seem to get the interval.. sometimes the key pressed can be seen, and sometimes it doesn't.. how can I get same interval when key press?

private void TextBox_KeyDown(object sender, KeyEventArgs e)
{
    dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
    dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 1);
    dispatcherTimer.Start();
}

i tried

dispatcherTimer.Interval = TimeSpan.FromSeconds(5);

but still the same...

EDIT

private void dispatcherTimer_Tick(object sender, EventArgs e)
{   
    string str = "";
    for(int i = 0; i < txtPass.Text.Length; i++)
        str += char.ConvertFromUtf32(8226);

    txtPass.Text = str;
    txtPass.Select(txtPass.Text.Length, 0);
}
Community
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Lyndon Broz Cañete Tonelete
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    Linking to another question doesn't prevent you to ask it. + we need to see `dispatcherTimer_Tick`'s implementation. – Kilazur Jan 22 '15 at 15:31
  • I have edited your title. Please see, "[Should questions include “tags” in their titles?](http://meta.stackexchange.com/questions/19190/)", where the consensus is "no, they should not". – John Saunders Jan 22 '15 at 15:33
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    I suggest you do `txtPass.Text = new string(char.ConvertFromUtf32(8226), txtPass.Text.Length);`, regardless – SimpleVar Jan 22 '15 at 16:03

1 Answers1

1

You don't need to subscribe to new event handler every time. Just do it one time in the constructor

dispatcherTimer = new DispatcherTimer();
dispatcherTimer.Tick += dispatcherTimer_Tick;
dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 1);

In the Keydown event, just reset the timer (Unfortunately we don't have any Reset method)

private void TextBox_KeyDown(object sender, KeyEventArgs e)
{
    dispatcherTimer.Stop();
    dispatcherTimer.Start();
}

As the timer ticks, just Stop the timer and do your work

void dispatcherTimer_Tick(object sender, EventArgs e)
{
    dispatcherTimer.Stop();
    //your code
}
Shaharyar
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