WPF 数字 UpDown 控件在哪里？

Question

进入第一个严肃的 WPF 项目。 似乎有很多基本的控件都缺失了。 具体来说，我正在寻找 Numeric UpDown 控件。 我是否错过了乐队外的发行？ 真的不想写自己的控件。

我不想使用 WindowsFormHost 并在其上放置 WinForm ctl。 我希望它完全是 WPF，没有任何遗留垃圾。

谢谢

Answer 1

只需使用 Extended.Wpf.Toolkit 中的 IntegerUpDown 控件即可
您可以像这样使用它：

1. 将以下命名空间添加到您的 XAML：

   xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"

2. 在您希望控件使用的 XAML 中：< /p>

Answer 2

我自己做了；

xaml

<Grid  Height="23" Margin="152,63,11,0" VerticalAlignment="Top">
    <TextBox x:Name="txtNum" x:FieldModifier="private" Text="0" TextChanged="txtNum_TextChanged" Margin="3,2,13,3" />
    <Button x:Name="cmdUp" x:FieldModifier="private" FontSize="10" Padding="0,-4,0,0" Content="▲" Width="10" Click="cmdUp_Click" Margin="33,2,1,13" />
    <Button x:Name="cmdDown" x:FieldModifier="private" FontSize="10" Padding="0,-4,0,0" Content="▼" Width="10" Click="cmdDown_Click" Margin="33,12,1,3" />
</Grid>

和背后的代码

private int _numValue = 0;

public int NumValue
{
    get {  return _numValue; }
    set
    {
        _numValue = value;
        txtNum.Text = value.ToString();
    }
}

public NumberUpDown()
{
    InitializeComponent();
    txtNum.Text = _numValue.ToString();
}

private void cmdUp_Click(object sender, RoutedEventArgs e)
{
    NumValue++;
}

private void cmdDown_Click(object sender, RoutedEventArgs e)
{
    NumValue--;
}

private void txtNum_TextChanged(object sender, TextChangedEventArgs e)
{
    if (txtNum == null)
    {
        return;
    }

    if (!int.TryParse(txtNum.Text, out _numValue))
        txtNum.Text = _numValue.ToString();
}

Answer 3

这是我自己的用户控件的示例，具有向上和向下键捕获。

Xaml 代码：

<Grid>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="*" />
        <ColumnDefinition Width="13" />
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition Height="13" />
        <RowDefinition Height="13" />
    </Grid.RowDefinitions>
    <TextBox Name="NUDTextBox"  Grid.Column="0" Grid.Row="0" Grid.RowSpan="2" TextAlignment="Right" PreviewKeyDown="NUDTextBox_PreviewKeyDown" PreviewKeyUp="NUDTextBox_PreviewKeyUp" TextChanged="NUDTextBox_TextChanged"/>
    <RepeatButton Name="NUDButtonUP"  Grid.Column="1" Grid.Row="0" FontSize="8" FontFamily="Marlett" VerticalContentAlignment="Center" HorizontalContentAlignment="Center" Click="NUDButtonUP_Click">5</RepeatButton>
    <RepeatButton Name="NUDButtonDown"  Grid.Column="1" Grid.Row="1" FontSize="8"  FontFamily="Marlett" VerticalContentAlignment="Center" HorizontalContentAlignment="Center" Height="13" VerticalAlignment="Bottom" Click="NUDButtonDown_Click">6</RepeatButton>
</Grid>

和代码：

public partial class NumericUpDown : UserControl
{
    int minvalue = 0, 
        maxvalue = 100,
        startvalue = 10;
    public NumericUpDown()
    {
        InitializeComponent();
        NUDTextBox.Text = startvalue.ToString();
    }

    private void NUDButtonUP_Click(object sender, RoutedEventArgs e)
    {
        int number;
        if (NUDTextBox.Text != "") number = Convert.ToInt32(NUDTextBox.Text);
        else number = 0;
        if (number < maxvalue)
            NUDTextBox.Text = Convert.ToString(number + 1); 
    }

    private void NUDButtonDown_Click(object sender, RoutedEventArgs e)
    {
        int number;
        if (NUDTextBox.Text != "") number = Convert.ToInt32(NUDTextBox.Text);
        else number = 0;
        if (number > minvalue)
            NUDTextBox.Text = Convert.ToString(number - 1); 
    }

    private void NUDTextBox_PreviewKeyDown(object sender, KeyEventArgs e)
    {

        if (e.Key == Key.Up)
        {
            NUDButtonUP.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
            typeof(Button).GetMethod("set_IsPressed", BindingFlags.Instance | BindingFlags.NonPublic).Invoke(NUDButtonUP, new object[] { true }); 
        }


        if (e.Key == Key.Down)
        {
            NUDButtonDown.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
            typeof(Button).GetMethod("set_IsPressed", BindingFlags.Instance | BindingFlags.NonPublic).Invoke(NUDButtonDown, new object[] { true }); 
        }
    }

    private void NUDTextBox_PreviewKeyUp(object sender, KeyEventArgs e)
    {
        if (e.Key == Key.Up)
            typeof(Button).GetMethod("set_IsPressed", BindingFlags.Instance | BindingFlags.NonPublic).Invoke(NUDButtonUP, new object[] { false });

        if (e.Key == Key.Down)
            typeof(Button).GetMethod("set_IsPressed", BindingFlags.Instance | BindingFlags.NonPublic).Invoke(NUDButtonDown, new object[] { false });
    }

    private void NUDTextBox_TextChanged(object sender, TextChangedEventArgs e)
    {
        int number = 0;
        if (NUDTextBox.Text!="")
            if (!int.TryParse(NUDTextBox.Text, out number)) NUDTextBox.Text = startvalue.ToString();
        if (number > maxvalue)  NUDTextBox.Text = maxvalue.ToString();
        if (number < minvalue) NUDTextBox.Text = minvalue.ToString();
        NUDTextBox.SelectionStart = NUDTextBox.Text.Length;

    }

}

Answer 4

让我们享受一些黑客的事情：
这里有一个Slider的Style作为NumericUpDown，简单易用，没有任何隐藏代码或第三方库。

<Style TargetType="{x:Type Slider}">
    <Style.Resources>
        <Style x:Key="RepeatButtonStyle" TargetType="{x:Type RepeatButton}">
            <Setter Property="Focusable" Value="false" />
            <Setter Property="IsTabStop" Value="false" />
            <Setter Property="Padding" Value="0" />
            <Setter Property="Width" Value="20" />
        </Style>
    </Style.Resources>
    <Setter Property="Stylus.IsPressAndHoldEnabled" Value="false" />
    <Setter Property="SmallChange" Value="1" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Slider}">
                <Grid>
                    <Grid.RowDefinitions>
                        <RowDefinition />
                        <RowDefinition />
                    </Grid.RowDefinitions>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition />
                        <ColumnDefinition Width="Auto" />
                    </Grid.ColumnDefinitions>
                    <TextBox Grid.RowSpan="2" Height="Auto"
                                Margin="0" Padding="0"
                                VerticalAlignment="Stretch" VerticalContentAlignment="Center"
                                Text="{Binding Value, RelativeSource={RelativeSource Mode=TemplatedParent}, Mode=TwoWay}">
                        <TextBox.InputBindings>
                            <KeyBinding Gesture="Up" Command="{x:Static Slider.IncreaseSmall}" />
                            <KeyBinding Gesture="Down" Command="{x:Static Slider.DecreaseSmall}" />
                            <KeyBinding Gesture="PageUp" Command="{x:Static Slider.IncreaseLarge}" />
                            <KeyBinding Gesture="PageDown" Command="{x:Static Slider.DecreaseLarge}" />
                        </TextBox.InputBindings>
                    </TextBox>
                    <RepeatButton Grid.Row="0" Grid.Column="1"
                                    Command="{x:Static Slider.IncreaseSmall}"
                                    Style="{StaticResource RepeatButtonStyle}">
                        <Path Data="M4,0 L0,4 8,4 Z" Fill="Black" />
                    </RepeatButton>
                    <RepeatButton Grid.Row="1" Grid.Column="1"
                                    Command="{x:Static Slider.DecreaseSmall}"
                                    Style="{StaticResource RepeatButtonStyle}">
                        <Path Data="M0,0 L4,4 8,0 Z" Fill="Black" />
                    </RepeatButton>
                    <Border x:Name="TrackBackground" Visibility="Collapsed">
                        <Rectangle x:Name="PART_SelectionRange" Visibility="Collapsed" />
                    </Border>
                    <Thumb x:Name="Thumb" Visibility="Collapsed" />
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

如果您确实想对 TextBox 应用输入限制，请尝试以下操作：

public static class InputLimit
{
    public static string GetDecimalValueProxy(TextBox obj) => (string)obj.GetValue(DecimalValueProxyProperty);

    public static void SetDecimalValueProxy(TextBox obj, string value) => obj.SetValue(DecimalValueProxyProperty, value);

    // Using a DependencyProperty as the backing store for DecimalValueProxy.  This enables animation, styling, binding, etc...
    public static readonly DependencyProperty DecimalValueProxyProperty =
        DependencyProperty.RegisterAttached("DecimalValueProxy", typeof(string), typeof(InputLimit),
            new FrameworkPropertyMetadata("0", FrameworkPropertyMetadataOptions.BindsTwoWayByDefault, null, CoerceDecimalValueProxy));

    private static object CoerceDecimalValueProxy(DependencyObject d, object baseValue)
    {
        if (decimal.TryParse(baseValue as string, out _)) return baseValue;
        return DependencyProperty.UnsetValue;
    }
}

并将 xaml TextBox 部分修改为：

<TextBox Grid.RowSpan="2" Height="Auto"
            Margin="0" Padding="0"
            VerticalAlignment="Stretch" VerticalContentAlignment="Center"
            local:InputLimit.DecimalValueProxy="{Binding Value, RelativeSource={RelativeSource Mode=TemplatedParent}, Mode=TwoWay}"
            Text="{Binding RelativeSource={RelativeSource Self}, Path=(local:InputLimit.DecimalValueProxy), Mode=TwoWay}">

编辑：
但上面的代码有一个严重的错误......
看代码：

Text="{Binding Value, RelativeSource={RelativeSource Mode=TemplatedParent}, Mode=TwoWay}"

TextBox失去焦点后会更新值，但如果在Binding中添加UpdateSourceTrigger=PropertyChanged，则无法输入将点(.) 放入 TextBox 中。

您可以使用下一个转换器代码来修复它：

public class SafeDotConverter : MarkupExtension, IValueConverter
{
    private bool hasDot;
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        var dbl = (double)value;
        if (hasDot && Math.Truncate(dbl) == dbl)
        {
            return $"{dbl}.";
        }
        return value.ToString();
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        if (value is string str)
        {
            hasDot = str.EndsWith(".");

            if (double.TryParse(str, out var val))
                return val;
        }
        return DependencyProperty.UnsetValue;
    }

    public override object ProvideValue(IServiceProvider serviceProvider)
    {
        return this;
    }
}

在 Xaml 中使用：

Text="{Binding Value, RelativeSource={RelativeSource Mode=TemplatedParent}, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged, Converter={local:SafeDotConverter}}"

Answer 5

给出的答案都可以。 但是，我希望当鼠标离开控件时按钮自动隐藏。 这是我的代码，基于上面的 vercin 答案：

样式

<Style TargetType="{x:Type v:IntegerTextBox}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type v:IntegerTextBox}">
                    <Grid Background="Transparent">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="*"/>
                            <RowDefinition Height="*"/>
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="Auto"/>
                        </Grid.ColumnDefinitions>
                        <TextBox Name="tbmain" Grid.ColumnSpan="2" Grid.RowSpan="2"
                                 Text="{Binding Value, Mode=TwoWay, NotifyOnSourceUpdated=True, 
                            NotifyOnValidationError=True, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type v:IntegerTextBox}}}" 
                                               Style="{StaticResource ValidationStyle}" />
                        <RepeatButton Name="PART_UpButton" BorderThickness="0" Grid.Column="1" Grid.Row="0"
                                      Width="13" Background="Transparent">
                            <Path Fill="Black" Data="M 0 3 L 6 3 L 3 0 Z"/>
                        </RepeatButton>
                        <RepeatButton Name="PART_DownButton" BorderThickness="0" Grid.Column="1" Grid.Row="1"
                                      Width="13" Background="Transparent">
                            <Path Fill="Black" Data="M 0 0 L 3 3 L 6 0 Z"/>
                        </RepeatButton>

                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseOver"  Value="False">
                            <Setter Property="Visibility" TargetName="PART_UpButton" Value="Collapsed"/>
                            <Setter Property="Visibility" TargetName="PART_DownButton" Value="Collapsed"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

代码

public partial class IntegerTextBox : UserControl
{
    public IntegerTextBox()
    {
        InitializeComponent();
    }

    public int Maximum
    {
        get { return (int)GetValue(MaximumProperty); }
        set { SetValue(MaximumProperty, value); }
    }
    public readonly static DependencyProperty MaximumProperty = DependencyProperty.Register(
        "Maximum", typeof(int), typeof(IntegerTextBox), new UIPropertyMetadata(int.MaxValue));



    public int Minimum
    {
        get { return (int)GetValue(MinimumProperty); }
        set { SetValue(MinimumProperty, value); }
    }
    public readonly static DependencyProperty MinimumProperty = DependencyProperty.Register(
        "Minimum", typeof(int), typeof(IntegerTextBox), new UIPropertyMetadata(int.MinValue));


    public int Value
    {
        get { return (int)GetValue(ValueProperty); }
        set { SetCurrentValue(ValueProperty, value); }
    }
    public readonly static DependencyProperty ValueProperty = DependencyProperty.Register(
        "Value", typeof(int), typeof(IntegerTextBox), new UIPropertyMetadata(0, (o,e)=>
        {
            IntegerTextBox tb = (IntegerTextBox)o;
            tb.RaiseValueChangedEvent(e);
        }));

    public event EventHandler<DependencyPropertyChangedEventArgs> ValueChanged;
    private void RaiseValueChangedEvent(DependencyPropertyChangedEventArgs e)
    {
        ValueChanged?.Invoke(this, e);
    }


    public int Step
    {
        get { return (int)GetValue(StepProperty); }
        set { SetValue(StepProperty, value); }
    }
    public readonly static DependencyProperty StepProperty = DependencyProperty.Register(
        "Step", typeof(int), typeof(IntegerTextBox), new UIPropertyMetadata(1));



    RepeatButton _UpButton;
    RepeatButton _DownButton;
    public override void OnApplyTemplate()
    {
        base.OnApplyTemplate();
        _UpButton = Template.FindName("PART_UpButton", this) as RepeatButton;
        _DownButton = Template.FindName("PART_DownButton", this) as RepeatButton;
        _UpButton.Click += btup_Click;
        _DownButton.Click += btdown_Click;
    }


    private void btup_Click(object sender, RoutedEventArgs e)
    {
        if (Value < Maximum)
        {
            Value += Step;
            if (Value > Maximum)
                Value = Maximum;
        }
    }

    private void btdown_Click(object sender, RoutedEventArgs e)
    {
        if (Value > Minimum)
        {
            Value -= Step;
            if (Value < Minimum)
                Value = Minimum;
        }
    }

}

Answer 6

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:numericButton2">


    <Style TargetType="{x:Type local:NumericUpDown}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type local:NumericUpDown}">              
                        <Grid>
                            <Grid.RowDefinitions>
                                <RowDefinition Height="*"/>
                                <RowDefinition Height="*"/>
                                <RowDefinition Height="*"/>
                            </Grid.RowDefinitions>
                            <RepeatButton Grid.Row="0" Name="Part_UpButton"/>
                            <ContentPresenter Grid.Row="1"></ContentPresenter>
                            <RepeatButton Grid.Row="2" Name="Part_DownButton"/>
                        </Grid>                  
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>

    <Window x:Class="numericButton2.MainWindow"
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            xmlns:local="clr-namespace:numericButton2"
            Title="MainWindow" Height="350" Width="525">
        <Grid>
            <local:NumericUpDown Margin="181,94,253,161" x:Name="ufuk" StepValue="4" Minimum="0" Maximum="20">            
            </local:NumericUpDown>
            <TextBlock Margin="211,112,279,0" Text="{Binding ElementName=ufuk, Path=Value}" Height="20" VerticalAlignment="Top"></TextBlock>
        </Grid>
    </Window>
public class NumericUpDown : Control
{
    private RepeatButton _UpButton;
    private RepeatButton _DownButton;
    public readonly static DependencyProperty MaximumProperty;
    public readonly static DependencyProperty MinimumProperty;
    public readonly static DependencyProperty ValueProperty;
    public readonly static DependencyProperty StepProperty;   
    static NumericUpDown()
    {
        DefaultStyleKeyProperty.OverrideMetadata(typeof(NumericUpDown), new FrameworkPropertyMetadata(typeof(NumericUpDown)));
        MaximumProperty = DependencyProperty.Register("Maximum", typeof(int), typeof(NumericUpDown), new UIPropertyMetadata(10));
        MinimumProperty = DependencyProperty.Register("Minimum", typeof(int), typeof(NumericUpDown), new UIPropertyMetadata(0));
        StepProperty = DependencyProperty.Register("StepValue", typeof(int), typeof(NumericUpDown), new FrameworkPropertyMetadata(5));
        ValueProperty = DependencyProperty.Register("Value", typeof(int), typeof(NumericUpDown), new FrameworkPropertyMetadata(0));
    }
    #region DpAccessior
    public int Maximum
    {
        get { return (int)GetValue(MaximumProperty); }
        set { SetValue(MaximumProperty, value); }
    }
    public int Minimum
    {
        get { return (int)GetValue(MinimumProperty); }
        set { SetValue(MinimumProperty, value); }
    }
    public int Value
    {
        get { return (int)GetValue(ValueProperty); }
        set { SetCurrentValue(ValueProperty, value); }
    }
    public int StepValue
    {
        get { return (int)GetValue(StepProperty); }
        set { SetValue(StepProperty, value); }
    }
    #endregion
    public override void OnApplyTemplate()
    {
        base.OnApplyTemplate();
        _UpButton = Template.FindName("Part_UpButton", this) as RepeatButton;
        _DownButton = Template.FindName("Part_DownButton", this) as RepeatButton;
        _UpButton.Click += _UpButton_Click;
        _DownButton.Click += _DownButton_Click;
    }

    void _DownButton_Click(object sender, RoutedEventArgs e)
    {
        if (Value > Minimum)
        {
            Value -= StepValue;
            if (Value < Minimum)
                Value = Minimum;
        }
    }

    void _UpButton_Click(object sender, RoutedEventArgs e)
    {
        if (Value < Maximum)
        {
            Value += StepValue;
            if (Value > Maximum)
                Value = Maximum;
        }
    }

}

Answer 7

您可以使用我编写的 WPF NumericUpDown 控件作为 WPFControls 库的一部分。

Answer 8

在 WPF 中将 VerticalScrollBar 与 TextBlock 控件结合使用。 在后面的代码中，添加以下代码：

在构造函数中，为滚动条定义一个事件处理程序：

scrollBar1.ValueChanged += new RoutedPropertyChangedEventHandler<double>(scrollBar1_ValueChanged);
scrollBar1.Minimum = 0;
scrollBar1.Maximum = 1;
scrollBar1.SmallChange = 0.1;

然后在事件处理程序中，添加：

void scrollBar1_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
{
    FteHolderText.Text = scrollBar1.Value.ToString();
}

这是我的代码中的原始片段...进行必要的更改..:)

public NewProjectPlan()
{
    InitializeComponent();

    this.Loaded += new RoutedEventHandler(NewProjectPlan_Loaded);

    scrollBar1.ValueChanged += new RoutedPropertyChangedEventHandler<double>(scrollBar1_ValueChanged);
    scrollBar1.Minimum = 0;
    scrollBar1.Maximum = 1;
    scrollBar1.SmallChange = 0.1;

    // etc...
}

void scrollBar1_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
{
    FteHolderText.Text = scrollBar1.Value.ToString();
}

Answer 9

为继续回答9年的问题而道歉。

我已经遵循@Michael 的回答并且有效。

我将其作为用户控件来执行，我可以像控件元素一样拖放。 我使用 Nuget 的 MaterialDesign 主题来获得 V 形图标和按钮波纹效果。

来自 Micheal 的经过修改后运行的 NumericUpDown 将如下所示：-

用户控件的代码：-

TemplateNumericUpDown.xaml

<UserControl x:Class="UserControlTemplate.TemplateNumericUpDown"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:UserControlTemplate"
             xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
             mc:Ignorable="d" MinHeight="48">
    <Grid Background="{DynamicResource {x:Static SystemColors.WindowFrameBrushKey}}">
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition Width="60"/>
        </Grid.ColumnDefinitions>
        <TextBox x:Name="txtNum" x:FieldModifier="private" Text="{Binding Path=NumValue}" TextChanged="TxtNum_TextChanged" FontSize="36" BorderThickness="0" VerticalAlignment="Center" Padding="5,0"/>
        <Grid Grid.Column="1">
            <Grid.RowDefinitions>
                <RowDefinition Height="30*"/>
                <RowDefinition Height="30*"/>
            </Grid.RowDefinitions>
            <Grid Background="#FF673AB7">
                <Viewbox HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Height="Auto" Width="Auto">
                    <materialDesign:PackIcon Kind="ChevronUp" Foreground="White" Height="32.941" Width="32"/>
                </Viewbox>
                <Button x:Name="cmdUp" x:FieldModifier="private" Click="CmdUp_Click" Height="Auto" BorderBrush="{x:Null}" Background="{x:Null}"/>
            </Grid>
            <Grid Grid.Row="1" Background="#FF673AB7">
                <Viewbox HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Height="Auto" Width="Auto">
                    <materialDesign:PackIcon Kind="ChevronDown" Foreground="White" Height="32.942" Width="32"/>
                </Viewbox>
                <Button x:Name="cmdDown" x:FieldModifier="private" Click="CmdDown_Click" Height="Auto" BorderBrush="{x:Null}" Background="{x:Null}"/>
            </Grid>
        </Grid>
    </Grid>
</UserControl>

TemplateNumericUpDown.cs

using System.Windows;
using System.Windows.Controls;

namespace UserControlTemplate
{
    /// <summary>
    /// Interaction logic for TemplateNumericUpDown.xaml
    /// </summary>
    public partial class TemplateNumericUpDown : UserControl
    {
        private int _numValue = 0;
        public TemplateNumericUpDown()
        {
            InitializeComponent();
            txtNum.Text = _numValue.ToString();
        }
        public int NumValue
        {
            get { return _numValue; }
            set
            {
                if (value >= 0)
                {
                    _numValue = value;
                    txtNum.Text = value.ToString();
                }
            }
        }

        private void CmdUp_Click(object sender, RoutedEventArgs e)
        {
            NumValue++;
        }

        private void CmdDown_Click(object sender, RoutedEventArgs e)
        {
            NumValue--;
        }

        private void TxtNum_TextChanged(object sender, TextChangedEventArgs e)
        {
            if (txtNum == null)
            {
                return;
            }

            if (!int.TryParse(txtNum.Text, out _numValue))
                txtNum.Text = _numValue.ToString();
        }
    }
}

在 MyPageDesign.xaml 上，拖放创建的用户控件将具有 < ;UserControlTemplate:TemplateNumericUpDown Horizo​​ntalAlignment="左"高度="100" VerticalAlignment="顶部"宽度="100"/>

要从模板中获取值，我使用

string Value1 = JournalNumStart.NumValue;
string Value2 = JournalNumEnd.NumValue;

I我还不太擅长根据 FontSize 元素绑定控件的高度，因此我在用户控件中手动设置页面字体大小。

** 注意：- 我已将程序中的“Archieve”名称更改为 Archive =)

Answer 10

这是另一个开源控件，它具有多种不同的输入方法（鼠标拖动、鼠标滚轮、光标键、文本框编辑），支持多种数据类型和用例：

Answer 11

这是另一个答案的修改，但具有绑定支持

<UserControl x:Class="YourNamespace.Controls.NumericUpDown"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:local="clr-namespace:NetReactorLM.Desktop.Controls"
             mc:Ignorable="d"
             d:DesignHeight="300" d:DesignWidth="300">
    <Grid  VerticalAlignment="Top">
        <TextBox x:Name="txtNum" x:FieldModifier="private" Text="0" TextChanged="txtNum_TextChanged" Margin="3,2,13,3" />
        <Button x:Name="cmdUp" x:FieldModifier="private" FontSize="10" Padding="0,-4,0,0" Content="▲" Width="10" Click="cmdUp_Click" Margin="33,2,1,13" />
        <Button x:Name="cmdDown" x:FieldModifier="private" FontSize="10" Padding="0,-4,0,0" Content="▼" Width="10" Click="cmdDown_Click" Margin="33,12,1,3" />
    </Grid>
</UserControl>

using System.Windows;
using System.Windows.Controls;

namespace YourNamespace.Controls
{
    public partial class NumericUpDown : UserControl
    {

        public static readonly DependencyProperty ValueProperty = DependencyProperty.Register(
            "Value", typeof(int), typeof(NumericUpDown), new PropertyMetadata(default(int)));

        public int Value
        {
            get { return (int) GetValue(ValueProperty); }
            set
            {
                SetValue(ValueProperty, value); 
                txtNum.Text = value.ToString();
            }
        }
        
        public NumericUpDown()
        {
            InitializeComponent();
            txtNum.Text = Value.ToString();
        }

        private void cmdUp_Click(object sender, RoutedEventArgs e)
        {
            Value++;
        }

        private void cmdDown_Click(object sender, RoutedEventArgs e)
        {
            Value--;
        }

        private void txtNum_TextChanged(object sender, TextChangedEventArgs e)
        {
            if (txtNum == null)
            {
                return;
            }

            if (!int.TryParse(txtNum.Text, out var val))
            {
                Value = val;
                txtNum.Text = val.ToString();
            }
        }
    }
}

Answer 12

我有一个幼稚的解决方案，但很有用。
这是代码：

<Grid Name="TVGrid" Background="#7F000000">  <ScrollBar Background="Black" Orientation="Vertical" Height="35" HorizontalAlignment="Left" Margin="215,254,0,0" Minimum="0" Maximum="10" LargeChange="10" Value="{Binding ElementName=channeltext2, Path=Text}" x:Name="scroll" VerticalAlignment="Top" Width="12" RenderTransformOrigin="0.5,0.5" ValueChanged="scroll_ValueChanged" >  
        <ScrollBar.RenderTransform>  
            <TransformGroup>  
                <ScaleTransform/>  
                <SkewTransform/>  
                <RotateTransform Angle="-180"/>  
                <TranslateTransform/>  
            </TransformGroup>  
        </ScrollBar.RenderTransform>  
    </ScrollBar>  
    <TextBox Name="channeltext" HorizontalContentAlignment="Center" FontSize="20"  Background="Black" Foreground="White" Height="35" HorizontalAlignment="Left" Margin="147,254,0,0" VerticalAlignment="Top" Width="53" Text="0" />  
    <TextBox Name="channeltext2" Visibility="Hidden" HorizontalContentAlignment="Center" FontSize="20"  Background="Black" Foreground="White" Height="35" HorizontalAlignment="Left" Margin="147,254,0,0" VerticalAlignment="Top" Width="53" Text="0" />  </Grid>  

Answer 13

只是一个务实的示例：

- 右键单击​​您的项目（在解决方案下），选择“管理 nuget 包...”

- 在菜单中单击浏览选项卡搜索“wpftoolkit” ”，选择“Extended.Wpf.Toolkit”

-安装它！

-右键单击用户控件工具箱，选择“添加选项卡..”并将其命名为“WPF Toolkit” -

右键单击​​新的“WPF Toolkit”选项卡，选择“选择项目...” -

在菜单中单击“浏览...”按钮，查找 nugets DLL 文件夹，选择全部
“...\packages\Extended.Wpf.Toolkit.3.5.0\lib\net40\*.dll”

忽略有关某些 DLL 可能不包含用户控件的警告！

准备好了:)

Answer 14

转到您项目的 NugetPackage 管理器 -> 浏览并搜索 mahApps.Metro -> 将包安装到您的项目中。 您将看到添加的参考：MahApps.Metro。
然后在您的 XAML 代码中添加：

"xmlns:mah="http://metro.mahapps.com/winfx/xaml/controls"

在您要使用对象的位置添加：

<mah:NumericUpDown x:Name="NumericUpDown" ... /> 

享受对象（绑定、触发器等...）。

Answer 15

免费版 Extended.Wpf.Toolkit 不支持 .net core 和 .net

您可以使用 HandyControl，它有一个 NumericUpDown 控件，在 Wpf 和 .net 5 中运行良好。

https://github.com/HandyOrg/HandyControl

Answer 16

您可以使用“NumericUpDown”。

<mah:NumericUpDown MinWidth="70" Height="35" Minimum="0" Maximum="10000" Interval="1" />

链接在这里
https://mahapps.com/docs/controls/numericupdown