本文介绍了依赖属性的reactiveui whenany的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个带有两个文本框和 ReactiveUI 的简单 WPF 应用程序.我尝试使用 WhenAny
I have simple WPF app with two textboxes and ReactiveUI. I try to lookup for dependency property of first textbox by using WhenAny
public partial class MainWindow : Window { public MainWindow() { RxApp.DeferredScheduler = DispatcherScheduler.Current; InitializeComponent(); Text1.WhenAny(i => i.Text, i => i.Value).Subscribe(_ => SomeMethod()); } void SomeMethod() { MessageBox.Show("Boom!"); } }我的表单代码是
<Window x:Class="TestObservable.MainWindow" xmlns="schemas.microsoft/winfx/2006/xaml/presentation" xmlns:x="schemas.microsoft/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"></ColumnDefinition> <ColumnDefinition Width="*"></ColumnDefinition> </Grid.ColumnDefinitions> <TextBox Name="Text1" Grid.Column="0"></TextBox> <TextBox Name="Text2" Grid.Column="1"></TextBox> </Grid>但是当我更改 TextBox 文本时,它不会显示给我
BUT When I change TextBox Text it doesn't show to me
有什么问题吗?
推荐答案试试这个:
this.WhenAny(x => x.Text1.Text, x => x.Value);如果它不起作用,我相信您是被 ReactiveUI 4.1 中的错误所困扰.升级到 4.2(几天前发布)可能会修复它.
If it doesn't work, I believe you're being bitten by a bug in ReactiveUI 4.1. Upgrading to 4.2 (released a few days ago) may fix it.
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依赖属性的reactiveui whenany
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