大佬教程收集整理的这篇文章主要介绍了c# – WPF自定义控件DependencyProperty不会数据绑定,大佬教程大佬觉得挺不错的,现在分享给大家,也给大家做个参考。
<UserControl x:Class="AGWPFControls.SetSpeed" xmlns="http://scheR_981_11845@as.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://scheR_981_11845@as.microsoft.com/winfx/2006/xaml" MinHeight="50" MinWidth="110"> <Canvas> <Slider Name="sldSetSpeed" MinWidth="100" Canvas.Top="5" Canvas.Left="5" /> <TextBox Name="txtSpeed" MinWidth="100" Canvas.bottom="5" Canvas.Right="5" Text="{Binding ElementName=sldSetSpeed,Path=value}" /> </Canvas> </UserControl>
它有一个名为Speed的DependencyProperty:
public partial class SetSpeed : UserControl { public SetSpeed() { InitializeComponent(); } public static readonly DependencyProperty SpeedProperty; static SetSpeed() { var md = new FrameworkPropertyMetadata(0.0); SetSpeed.SpeedProperty = DependencyProperty.Register( "Speed",typeof(doublE),typeof(SetSpeed),md); } public double Speed { get { return (doublE)GetValue(SetSpeed.SpeedProperty); } set { SETVALue(SetSpeed.SpeedProperty,value); } } }
我已将控件放在Window中并将元素(任何元素)绑定到它:
<Window x:Class="WpfApplication3.MainWindow" xmlns="http://scheR_981_11845@as.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://scheR_981_11845@as.microsoft.com/winfx/2006/xaml" title="MainWindow" xmlns:my="clr-namespace:AGWPFControls;assembly=AGWPFControls"> <StackPanel> <my:SetSpeed Name="setSpeed1" /> <TextBlock Text="{Binding ElementName=setSpeed1,Path=SpeeD}" /> </StackPanel> </Window>
它很简单.不过没有骰子.当我移动滑块时,TextBlock中的值永远不会改变.我错过了什么,这里?
<UserControl x:Name="userControl" x:Class="AGWPFControls.SetSpeed" xmlns="http://scheR_981_11845@as.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://scheR_981_11845@as.microsoft.com/winfx/2006/xaml" MinHeight="50" MinWidth="110"> <Canvas> <Slider Name="sldSetSpeed" MinWidth="100" Canvas.Top="5" Canvas.Left="5" Value="{Binding Speed,ElementName=userControl,Mode=TwoWay}" /> <TextBox Name="txtSpeed" MinWidth="100" Canvas.bottom="5" Canvas.Right="5" Text="{Binding ElementName=sldSetSpeed,Path=value}" /> </Canvas> </UserControl>
以上是大佬教程为你收集整理的c# – WPF自定义控件DependencyProperty不会数据绑定全部内容,希望文章能够帮你解决c# – WPF自定义控件DependencyProperty不会数据绑定所遇到的程序开发问题。
如果觉得大佬教程网站内容还不错,欢迎将大佬教程推荐给程序员好友。
本图文内容来源于网友网络收集整理提供,作为学习参考使用,版权属于原作者。
如您有任何意见或建议可联系处理。小编QQ:384754419,请注明来意。