I'm trying to increase the value in the textbox by using arrowkeys. I'm using wfp, c#
if (ke.Key == Key.Up || ke.Key == Key.Down)
ke.Handled = false;// need a method in here
How can I increase the value in the textbox using arrow keys?
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What is your question? – rory.ap Aug 05 '15 at 13:58
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how can ı increase the value in the textbox using arrow keys? – shila44 Aug 05 '15 at 13:59
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Can you clean up your question and make it more clear? Don't provide substantive information in the comments; that belongs in the question. – rory.ap Aug 05 '15 at 14:01
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okey, i edited it. is that clear now? – shila44 Aug 05 '15 at 14:06
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what is the value in textbox. number? – M.kazem Akhgary Aug 05 '15 at 14:12
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yes.it contains numbers – shila44 Aug 05 '15 at 14:18
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Parse the value and convert it to an integer (or whatever appropriate type if you want to support decimals), increment it, re-assign that value to the textbox.text – sab669 Aug 05 '15 at 14:37
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could you write me a little code? sab669 – shila44 Aug 05 '15 at 14:45
1 Answers
2
The texbox in WPF
<TextBox Name="textbox1" HorizontalAlignment="Left" Text="0" Height="23" TextWrapping="Wrap" VerticalAlignment="Top" Width="120" Margin="154,138,0,0" PreviewKeyDown="TextBox_KeyDown"/>
CodeBehind
private void TextBox_KeyDown(object sender, KeyEventArgs e)
{
int currentNumber = Convert.ToInt32(textbox1.Text);
if (e.Key == Key.Up)
{
textbox1.Text = (currentNumber + 1).ToString();
}
else if (e.Key == Key.Down)
{
textbox1.Text = (currentNumber - 1).ToString();
}
}
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