进入第一个严肃的WPF项目。似乎有很多基本控件完全失踪了。具体来说,我正在寻找数字UpDown控件。我错过了带外发行吗?真的不喜欢自己编写控件。
我不想使用WindowsFormHost并在其上放入WinForm ctl。我希望它完全是WPF,而且没有任何遗留垃圾。
谢谢
进入第一个严肃的WPF项目。似乎有很多基本控件完全失踪了。具体来说,我正在寻找数字UpDown控件。我错过了带外发行吗?真的不喜欢自己编写控件。
我不想使用WindowsFormHost并在其上放入WinForm ctl。我希望它完全是WPF,而且没有任何遗留垃圾。
谢谢
Answers:
只需使用xtended wpf工具包中的IntegerUpDown
控件,
就可以像这样使用它:
将以下名称空间添加到您的XAML:
xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
在要使用控件的XAML中:
<xctk:IntegerUpDown Name="myUpDownControl" />
我做了我自己的;
xaml
<StackPanel Orientation="Horizontal">
<TextBox x:Name="txtNum" x:FieldModifier="private" Margin="5,5,0,5" Width="50" Text="0" TextChanged="txtNum_TextChanged" />
<Button x:Name="cmdUp" x:FieldModifier="private" Margin="5,5,0,5" Content="˄" Width="20" Click="cmdUp_Click" />
<Button x:Name="cmdDown" x:FieldModifier="private" Margin="0,5,0,5" Content="˅" Width="20" Click="cmdDown_Click" />
</StackPanel>
和后面的代码
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();
}
这是我自己的具有上下键捕获功能的UserControl的示例。
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;
}
}
<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;
}
}
}
给出的答案是可以的。但是,我希望按钮在鼠标离开控件时自动隐藏。这是我基于上述vercin答案的代码:
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>
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;
}
}
}
VerticalScrollBar
与TextBlock
WPF中的控件一起使用。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();
}
这是我的代码的原始代码段...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();
}
您可以将我编写的WPF的NumericUpDown控件用作WPFControls库的一部分。
为继续回答9年的问题而道歉。
我已经按照@Micheal的回答进行操作了。
我作为UserControl进行操作,可以像Controls元素一样拖放。我使用Nuget的MaterialDesign主题来获得Chevron图标和按钮波纹效果。
通过修改从Micheal运行的NumericUpDown如下:
用户控制代码:
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usercontrol将具有 <UserControlTemplate:TemplateNumericUpDown HorizontalAlignment="Left" Height="100" VerticalAlignment="Top" Width="100"/>
为了从模板中获取价值,我使用
string Value1 = JournalNumStart.NumValue;
string Value2 = JournalNumEnd.NumValue;
我还没有很好的技能来绑定基于FontSize元素的控件的Height,所以我在用户控件中手动设置了页面的fontsize。
**注意:-我在程序上将“存档”名称更改为“存档=”
我有一个幼稚的解决方案,但有用。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>
这是另一个开源控件,具有许多不同的输入方法(鼠标拖动,鼠标滚轮,光标键,文本框编辑),支持许多数据类型和用例:
务实地做样本:
-右键单击您的项目(在“解决方案”下),选择“管理nuget软件包...”
-在菜单中单击浏览选项卡,搜索“ wpftoolkit”,选择Extended.Wpf.Toolkit
“
-安装!
-右键单击“用户控制工具箱”,选择“添加标签..”,并将其命名为“ WPF工具箱”
-右键点击新的“ WPF工具包”标签,选择“选择项目...”
-在菜单中单击“浏览...”按钮,查找nugets DLL文件夹,选择所有“ ...\packages\Extended.Wpf.Toolkit.3.5.0\lib\net40\*.dll
”
忽略有关某些DLL的警告可能不包含用户控件!
准备好了:)