C＃WPF - 我按下按钮的时间越长，计数就越快

Question

我只是“建立”一个Numeric Up Down按钮。现在我有一个问题，我希望如果按下按钮的时间越长，按下的时间就越快。 但只有1-2秒后。以及正常的Numeric Up Down按钮。如果你点击了按钮，它的计数就越快。

我该怎么做？

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows; 
using System.Windows.Controls; 
using System.Windows.Data; 
using System.Windows.Documents; 
using System.Windows.Input; 
using System.Windows.Media; 
using System.Windows.Media.Imaging; 
using System.Windows.Navigation; 
using System.Windows.Shapes; 
using System.Diagnostics; 
using System.Text.RegularExpressions; 

namespace loeschen 
{ 
    /// <summary> 
    /// Interaktionslogik für MainWindow.xaml 
    /// </summary> 
    public partial class MainWindow : Window 
    { 
     public MainWindow() 
     { 
      InitializeComponent(); 
     } 

     private void NumberValidationTextBox(object sender, TextCompositionEventArgs e) 
     { 
      //Regex regex = new Regex("[^0-9-)]"); 
      // Regex regex = new Regex("[^0-9-)]"); 
      //e.Handled = regex.IsMatch(e.Text); 
      //int zahl; 
      //e.Handled = int.TryParse(e.Text, out zahl); 

      Regex regex = new Regex(@"-?\d+(?:\.\d+)?"); 
      e.Handled = !regex.IsMatch(e.Text); 


     } 

     private void textBox_GotFocus(object sender, RoutedEventArgs e) 
     { 
      textBox.SelectAll(); 
     } 

     private void textBox1_GotFocus(object sender, RoutedEventArgs e) 
     { 
     } 

     private void button_Copy1_Click(object sender, RoutedEventArgs e) 
     { 
      if (!String.IsNullOrEmpty(tb.Text)) 
       tb.Text = ((Int32.Parse(tb.Text)) + 1).ToString(); 


     } 

     private void button_Copy2_Click(object sender, RoutedEventArgs e) 
     { 
      if (!String.IsNullOrEmpty(tb.Text)) 
       tb.Text = ((Int32.Parse(tb.Text)) - 1).ToString(); 

     } 

     private void tb_TextChanged(object sender, TextChangedEventArgs e) 
     { 
      try 
      { 

       if (!String.IsNullOrEmpty(tb.Text)) 
       { 

        if (Int32.Parse(tb.Text) > 100) 
        { 
         label.Content = "Limit erreicht"; 
         tb.Text = (Int32.Parse(tb.Text) - 1).ToString(); 
        } 
        else if (Int32.Parse(tb.Text) < -100) 
        { 
         label.Content = "Limit erreicht"; 
         tb.Text = (Int32.Parse(tb.Text) + 1).ToString(); 
        } 
        else if(Int32.Parse(tb.Text) < 100 && Int32.Parse(tb.Text) > -100) 
        { 
         label.Content = ""; 
        } 
       } 
      } 
      catch (Exception) 
      { 

      } 
     } 
    } 
} 

---

<Window x:Class="loeschen.MainWindow" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
     xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit" 
     xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid" 
     xmlns:local="clr-namespace:loeschen" 
     mc:Ignorable="d" 
     Title="MainWindow" Height="350" Width="525"> 
    <Grid Background="#FFA8EE9D"> 
     <Canvas HorizontalAlignment="Left" Height="46" Margin="75,25,0,0" VerticalAlignment="Top" Width="132" Background="White"> 
      <Button x:Name="button" Content="▲" HorizontalAlignment="Left" VerticalAlignment="Top" Canvas.Left="116" Canvas.Top="2"/> 
      <Button x:Name="button_Copy" Content="▼" HorizontalAlignment="Left" VerticalAlignment="Top" Canvas.Left="116" Canvas.Top="24" RenderTransformOrigin="2.069,0.293"/> 
      <TextBox x:Name="textBox" HorizontalAlignment="Left" BorderThickness="0" Height="22" BorderBrush="Transparent" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="79" Canvas.Left="37" Canvas.Top="12" SelectionBrush="Transparent" TextAlignment="Center" Background="{x:Null}" GotFocus="textBox_GotFocus"/> 



     </Canvas> 
     <Canvas HorizontalAlignment="Left" Height="45" Margin="290,201,0,0" VerticalAlignment="Top" Width="99" Background="White"> 
      <TextBox x:Name="tb" PreviewTextInput="NumberValidationTextBox" HorizontalAlignment="Left" BorderThickness="0" Height="22" BorderBrush="Transparent" TextWrapping="Wrap" Text="99" VerticalAlignment="Top" Width="79" Canvas.Top="13" SelectionBrush="Transparent" TextAlignment="Center" Background="{x:Null}" GotFocus="textBox_GotFocus" TextChanged="tb_TextChanged"/> 
     </Canvas> 
     <Canvas HorizontalAlignment="Left" Height="45" Margin="370,201,0,0" VerticalAlignment="Top" Width="19" Background="Gainsboro"> 
      <Button x:Name="button_Copy1" Content="▲" HorizontalAlignment="Left" VerticalAlignment="Top" Height="19" Width="19" FontSize="9" Click="button_Copy1_Click"/> 
      <Button x:Name="button_Copy2" Content="▼" HorizontalAlignment="Left" VerticalAlignment="Top" Height="19" Width="19" FontSize="9" Canvas.Top="26" Click="button_Copy2_Click"/> 
     </Canvas> 
     <Label x:Name="label" Content="Label" HorizontalAlignment="Left" Margin="329,154,0,0" VerticalAlignment="Top"/> 
    </Grid> 
</Window> 

Answer 1

你可以添加上mousebutton定时器和下来，开始计时，在mousebutton起来，阻止它。

定时器，如果鼠标向下的时间大于2秒，可以+1加1，这样计数就会增加......所以每次迭代都会越来越快，或者只是使用定时器+ 1如果< 2s和+5或2s后的东西..选择是你的