2019-9-18-WPF-如何调试-binding
| title | author | date | CreateTime | categories |
|---|---|---|---|---|
|
WPF 如何调试 binding
|
lindexi
|
2019-9-18 10:1:4 +0800
|
2018-2-13 17:23:3 +0800
|
WPF WPF调试 调试
|
如果是写在 xaml 的绑定，很难看到是那里出错。本文告诉大家如何在 vs 调试 binding 是否绑定上？
在写 Binding 的时候，需要在运行的时候才能知道是否绑定对了，但是可能有时候代码是好的，但是有逗比小伙伴改了一下就不知道是属性名修改了绑定不上，还是转换器没写对
在 WPF 提供了输出绑定的信息，可以在 binding 输出很多关于他如何做的，如何寻找绑定的数据，绑定是如何创建的
本文告诉大家如何使用绑定输出
首先引用命名空间，请在添加 trace 命名空间
xmlns:trace="clr-namespace:System.Diagnostics;assembly=WindowsBase"
然后在 binding 里写 trace:PresentationTraceSources.TraceLevel=High 设置调试等级
我在一个复杂的界面，很难知道是不是在哪写错，在绑定里面添加输出的方法如下
-
<TextBlock FontSize="48" HorizontalAlignment="Center" VerticalAlignment="Center"
-
Text="{Binding RelativeSource={RelativeSource AncestorType=ListBoxItem}, Path=(ItemsControl.AlternationIndex),trace:PresentationTraceSources.TraceLevel=High, Mode=OneWay, Converter={StaticResource NumberAddOne}}">
-
如果这个 binding 是在后台代码创建，那么请使用下面代码，这里 BakooteZuroolu 是一个 TextBlock 元素，把他的 Text 绑定到 KasxoujarGayher 一个我也不知道什么的属性，可以看到代码很少。
var binding = new Binding(nameof(ViewModel.KasxoujarGayher));
PresentationTraceSources.SetTraceLevel(binding, PresentationTraceLevel.High);
BindingOperations.SetBinding(BakooteZuroolu, TextBlock.TextProperty, binding);
运行打开就可以看到输出这些代码
System.Windows.Data Warning: 56 : Created BindingExpression (hash=36771698) for Binding (hash=7954964)
System.Windows.Data Warning: 58 : Path: '(0)'
System.Windows.Data Warning: 61 : BindingExpression (hash=36771698): Default update trigger resolved to PropertyChanged
System.Windows.Data Warning: 56 : Created BindingExpression (hash=62509834) for Binding (hash=7954964)
System.Windows.Data Warning: 58 : Path: '(0)'
System.Windows.Data Warning: 61 : BindingExpression (hash=62509834): Default update trigger resolved to PropertyChanged
System.Windows.Data Warning: 62 : BindingExpression (hash=62509834): Attach to System.Windows.Controls.TextBlock.Text (hash=8340425)
System.Windows.Data Warning: 66 : BindingExpression (hash=62509834): RelativeSource (FindAncestor) requires tree context
System.Windows.Data Warning: 65 : BindingExpression (hash=62509834): Resolve source deferred
System.Windows.Data Warning: 56 : Created BindingExpression (hash=55365254) for Binding (hash=37966223)
System.Windows.Data Warning: 58 : Path: '(0)'
System.Windows.Data Warning: 61 : BindingExpression (hash=55365254): Default update trigger resolved to PropertyChanged
System.Windows.Data Warning: 56 : Created BindingExpression (hash=28525238) for Binding (hash=37966223)
System.Windows.Data Warning: 58 : Path: '(0)'
System.Windows.Data Warning: 61 : BindingExpression (hash=28525238): Default update trigger resolved to PropertyChanged
System.Windows.Data Warning: 62 : BindingExpression (hash=28525238): Attach to System.Windows.Controls.TextBlock.Text (hash=48957711)
System.Windows.Data Warning: 66 : BindingExpression (hash=28525238): RelativeSource (FindAncestor) requires tree context
System.Windows.Data Warning: 65 : BindingExpression (hash=28525238): Resolve source deferred
System.Windows.Data Warning: 56 : Created BindingExpression (hash=16291455) for Binding (hash=40797849)
System.Windows.Data Warning: 58 : Path: '(0)'
System.Windows.Data Warning: 61 : BindingExpression (hash=16291455): Default update trigger resolved to PropertyChanged
System.Windows.Data Warning: 56 : Created BindingExpression (hash=12405375) for Binding (hash=40797849)
System.Windows.Data Warning: 58 : Path: '(0)'
System.Windows.Data Warning: 61 : BindingExpression (hash=12405375): Default update trigger resolved to PropertyChanged
System.Windows.Data Warning: 62 : BindingExpression (hash=12405375): Attach to System.Windows.Controls.TextBlock.Text (hash=34359256)
System.Windows.Data Warning: 66 : BindingExpression (hash=12405375): RelativeSource (FindAncestor) requires tree context
System.Windows.Data Warning: 65 : BindingExpression (hash=12405375): Resolve source deferred
System.Windows.Data Warning: 56 : Created BindingExpression (hash=6720246) for Binding (hash=42336695)
System.Windows.Data Warning: 58 : Path: '(0)'
System.Windows.Data Warning: 61 : BindingExpression (hash=6720246): Default update trigger resolved to PropertyChanged
System.Windows.Data Warning: 56 : Created BindingExpression (hash=60482217) for Binding (hash=42336695)
System.Windows.Data Warning: 58 : Path: '(0)'
System.Windows.Data Warning: 61 : BindingExpression (hash=60482217): Default update trigger resolved to PropertyChanged
System.Windows.Data Warning: 62 : BindingExpression (hash=60482217): Attach to System.Windows.Controls.TextBlock.Text (hash=64356400)
System.Windows.Data Warning: 66 : BindingExpression (hash=60482217): RelativeSource (FindAncestor) requires tree context
System.Windows.Data Warning: 65 : BindingExpression (hash=60482217): Resolve source deferred
System.Windows.Data Warning: 56 : Created BindingExpression (hash=29858833) for Binding (hash=64163473)
System.Windows.Data Warning: 58 : Path: '(0)'
System.Windows.Data Warning: 61 : BindingExpression (hash=29858833): Default update trigger resolved to PropertyChanged
System.Windows.Data Warning: 56 : Created BindingExpression (hash=294043) for Binding (hash=64163473)
System.Windows.Data Warning: 58 : Path: '(0)'
System.Windows.Data Warning: 61 : BindingExpression (hash=294043): Default update trigger resolved to PropertyChanged
System.Windows.Data Warning: 62 : BindingExpression (hash=294043): Attach to System.Windows.Controls.TextBlock.Text (hash=59325057)
System.Windows.Data Warning: 66 : BindingExpression (hash=294043): RelativeSource (FindAncestor) requires tree context
System.Windows.Data Warning: 65 : BindingExpression (hash=294043): Resolve source deferred
System.Windows.Data Warning: 67 : BindingExpression (hash=62509834): Resolving source
System.Windows.Data Warning: 70 : BindingExpression (hash=62509834): Found data context element: <null> (OK)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Grid (hash=64665535)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Grid (hash=22098140)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried ContentPresenter (hash=9911889)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Border (hash=8557861)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried ListViewItem (hash=48873995)
System.Windows.Data Warning: 72 : RelativeSource.FindAncestor found ListViewItem (hash=48873995)
System.Windows.Data Warning: 78 : BindingExpression (hash=62509834): Activate with root item ListViewItem (hash=48873995)
System.Windows.Data Warning: 108 : BindingExpression (hash=62509834): At level 0 - for ListViewItem.(ItemsControl.AlternationIndex) found accessor DependencyProperty(AlternationIndex)
System.Windows.Data Warning: 104 : BindingExpression (hash=62509834): Replace item at level 0 with ListViewItem (hash=48873995), using accessor DependencyProperty(AlternationIndex)
System.Windows.Data Warning: 101 : BindingExpression (hash=62509834): GetValue at level 0 from ListViewItem (hash=48873995) using DependencyProperty(AlternationIndex): '0'
System.Windows.Data Warning: 80 : BindingExpression (hash=62509834): TransferValue - got raw value '0'
System.Windows.Data Warning: 82 : BindingExpression (hash=62509834): TransferValue - user's converter produced '1'
System.Windows.Data Warning: 84 : BindingExpression (hash=62509834): TransferValue - implicit converter produced '1'
System.Windows.Data Warning: 89 : BindingExpression (hash=62509834): TransferValue - using final value '1'
System.Windows.Data Warning: 67 : BindingExpression (hash=28525238): Resolving source
System.Windows.Data Warning: 70 : BindingExpression (hash=28525238): Found data context element: <null> (OK)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Grid (hash=42455531)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Grid (hash=56913064)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried ContentPresenter (hash=13780214)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Border (hash=23900756)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried ListViewItem (hash=37212772)
System.Windows.Data Warning: 72 : RelativeSource.FindAncestor found ListViewItem (hash=37212772)
System.Windows.Data Warning: 78 : BindingExpression (hash=28525238): Activate with root item ListViewItem (hash=37212772)
System.Windows.Data Warning: 107 : BindingExpression (hash=28525238): At level 0 using cached accessor for ListViewItem.(ItemsControl.AlternationIndex): DependencyProperty(AlternationIndex)
System.Windows.Data Warning: 104 : BindingExpression (hash=28525238): Replace item at level 0 with ListViewItem (hash=37212772), using accessor DependencyProperty(AlternationIndex)
System.Windows.Data Warning: 101 : BindingExpression (hash=28525238): GetValue at level 0 from ListViewItem (hash=37212772) using DependencyProperty(AlternationIndex): '1'
System.Windows.Data Warning: 80 : BindingExpression (hash=28525238): TransferValue - got raw value '1'
System.Windows.Data Warning: 82 : BindingExpression (hash=28525238): TransferValue - user's converter produced '2'
System.Windows.Data Warning: 84 : BindingExpression (hash=28525238): TransferValue - implicit converter produced '2'
System.Windows.Data Warning: 89 : BindingExpression (hash=28525238): TransferValue - using final value '2'
System.Windows.Data Warning: 67 : BindingExpression (hash=12405375): Resolving source
System.Windows.Data Warning: 70 : BindingExpression (hash=12405375): Found data context element: <null> (OK)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Grid (hash=23387474)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Grid (hash=2598608)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried ContentPresenter (hash=45027976)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Border (hash=57198891)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried ListViewItem (hash=66479500)
System.Windows.Data Warning: 72 : RelativeSource.FindAncestor found ListViewItem (hash=66479500)
System.Windows.Data Warning: 78 : BindingExpression (hash=12405375): Activate with root item ListViewItem (hash=66479500)
System.Windows.Data Warning: 107 : BindingExpression (hash=12405375): At level 0 using cached accessor for ListViewItem.(ItemsControl.AlternationIndex): DependencyProperty(AlternationIndex)
System.Windows.Data Warning: 104 : BindingExpression (hash=12405375): Replace item at level 0 with ListViewItem (hash=66479500), using accessor DependencyProperty(AlternationIndex)
System.Windows.Data Warning: 101 : BindingExpression (hash=12405375): GetValue at level 0 from ListViewItem (hash=66479500) using DependencyProperty(AlternationIndex): '2'
System.Windows.Data Warning: 80 : BindingExpression (hash=12405375): TransferValue - got raw value '2'
System.Windows.Data Warning: 82 : BindingExpression (hash=12405375): TransferValue - user's converter produced '3'
System.Windows.Data Warning: 84 : BindingExpression (hash=12405375): TransferValue - implicit converter produced '3'
System.Windows.Data Warning: 89 : BindingExpression (hash=12405375): TransferValue - using final value '3'
System.Windows.Data Warning: 67 : BindingExpression (hash=60482217): Resolving source
System.Windows.Data Warning: 70 : BindingExpression (hash=60482217): Found data context element: <null> (OK)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Grid (hash=47357306)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Grid (hash=35088084)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried ContentPresenter (hash=3898676)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Border (hash=22802807)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried ListViewItem (hash=61444595)
System.Windows.Data Warning: 72 : RelativeSource.FindAncestor found ListViewItem (hash=61444595)
System.Windows.Data Warning: 78 : BindingExpression (hash=60482217): Activate with root item ListViewItem (hash=61444595)
System.Windows.Data Warning: 107 : BindingExpression (hash=60482217): At level 0 using cached accessor for ListViewItem.(ItemsControl.AlternationIndex): DependencyProperty(AlternationIndex)
System.Windows.Data Warning: 104 : BindingExpression (hash=60482217): Replace item at level 0 with ListViewItem (hash=61444595), using accessor DependencyProperty(AlternationIndex)
System.Windows.Data Warning: 101 : BindingExpression (hash=60482217): GetValue at level 0 from ListViewItem (hash=61444595) using DependencyProperty(AlternationIndex): '3'
System.Windows.Data Warning: 80 : BindingExpression (hash=60482217): TransferValue - got raw value '3'
System.Windows.Data Warning: 82 : BindingExpression (hash=60482217): TransferValue - user's converter produced '4'
System.Windows.Data Warning: 84 : BindingExpression (hash=60482217): TransferValue - implicit converter produced '4'
System.Windows.Data Warning: 89 : BindingExpression (hash=60482217): TransferValue - using final value '4'
System.Windows.Data Warning: 67 : BindingExpression (hash=294043): Resolving source
System.Windows.Data Warning: 70 : BindingExpression (hash=294043): Found data context element: <null> (OK)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Grid (hash=45699530)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Grid (hash=5077725)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried ContentPresenter (hash=564191)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried Border (hash=62687)
System.Windows.Data Warning: 73 : Lookup ancestor of type ListBoxItem: queried ListViewItem (hash=16130451)
System.Windows.Data Warning: 72 : RelativeSource.FindAncestor found ListViewItem (hash=16130451)
System.Windows.Data Warning: 78 : BindingExpression (hash=294043): Activate with root item ListViewItem (hash=16130451)
System.Windows.Data Warning: 107 : BindingExpression (hash=294043): At level 0 using cached accessor for ListViewItem.(ItemsControl.AlternationIndex): DependencyProperty(AlternationIndex)
System.Windows.Data Warning: 104 : BindingExpression (hash=294043): Replace item at level 0 with ListViewItem (hash=16130451), using accessor DependencyProperty(AlternationIndex)
参见 http://jimmangaly.blogspot.com/2009/04/debugging-data-binding-in-wpf.html
如果是想要在 VisualStudio 输出所有绑定的详细信息请看 WPF 笔刷绑定不上可能的原因
2019-9-18-WPF-如何调试-binding的更多相关文章
- 2019.3.18考试&2019.3.19考试&2019.3.21考试
2019.3.18 C O D E T1 树上直接贪心,环上for一遍贪心 哇说的简单,码了将近一下午终于码出来了 感觉自己码力/写题策略太糟糕了,先是搞了一个细节太多的写法最后不得不弃疗了,然后第二 ...
- 【转】WPF中的Binding技巧（二）
WPF中的Binding技巧(二) 接上篇, 我们来看一看Elementname,Source,RelativeSource 三种绑定的方式 1.ElementName顾名思义就是根据Ui元素 ...
- WPF性能调试系列 – 内存监测
WPF性能调试系列文章: WPF页面渲染优化:Application Timeline WPF页面业务加载优化:Ants Performance Profiler WPF内存优化:Ants M ...
- WPF性能调试系列 – Ants Performance Profiler
WPF性能调试系列文章: WPF页面渲染优化:Application Timeline WPF页面业务加载优化:Ants Performance Profiler WPF内存优化:Ants Memor ...
- WPF性能调试系列 – 应用程序时间线
WPF性能调试系列文章: WPF页面渲染优化:Application Timeline WPF页面业务加载优化:Ants Performance Profiler WPF内存优化:Ants Memor ...
- [WPF]如何调试Data Binding
前言 在WPF开发中,将ViewModel中对象绑定到UI上时,会出现明明已经将数据对象Binding到UI,但是UI上就是不显示等等的问题.这篇博客将介绍WPF Data Binding相关的内容, ...
- [XAML]类似WPF绑定的Binding的读取方法
在WPF的XAML里,依赖属性可以使用基于BindingBase之类的MarkupExtensin 读取XAML时,会自动的把该BindingBase转换为BindingExpressionBase ...
- [WPF系列]-使用Binding来同步不同控件的Dependency property
简介 项目中经常会用到,同步两个控件的值,本文就简单列举两种方式来同步不同控件的两个Dependency Property. 示例 效果图: 只使用C#代码: //获取slider1的ValueDep ...
- (WPF, MVVM) Slider Binding.
对于Button的Command的绑定可以通过实现ICommand接口来进行,但是Slider并没有Command属性. 另外如果要实现MVVM模式的话,需要将一些Method和Slider的Even ...
随机推荐
- layui 使用随记
layui confir使用 不显示右上角关闭按钮 针对提示框内按钮指定操作 layer.confirm("这里填写提示信息", {closeBtn:0,icon: 0, titl ...
- HTML常用标签二
图像标签和路径 目录文件夹:普通的文件夹,里面存放了我们做页面需要的相关素材,比如html文件,图片等 根目录:打开目录文件夹的第一层就是根目录 路径 相对路径 以引用文件所在位置为参考基础,而建立出 ...
- 比较好用的移动端适配的两种方案及flexible和px2rem-loader在webpack下的配置
移动端适配,目前自己常用的两种 方案,参考以下两篇好文 方案一:使用lib-flexible包 https://www.w3cplus.com/mobile/lib-flexible-for-html ...
- Github使用总结（添加ssh-key，新建仓库，添加协作者） 转
http://jingyan.baidu.com/article/ab0b5630936ab6c15afa7d1c.html https://help.github.com/articles/gene ...
- [b0025] vmware_桥接网路设置
总结: 桥接 模式上外网比较简单. 缺点是每次重启虚拟机,分配的IP可能变化,导致 xshell 连接 时都要修改,很麻烦 桥接模式能不能配置静态IP ? 1. 环境 物理机网络 情况,从外部自动 ...
- semantic功能介绍
semantic功能介绍 gnu Semantic Manual 1,代码自动补全 3,代码导航 启动semantic功能:(semantic-mode 1) 1,Semantic mode 是辅助模 ...
- Shell命令-搜索文件或目录之which、find
文件及内容处理 - which.find 1. which:查找二进制命令,按环境变量PATH路径查找 which命令的功能说明 which 命令用于查找文件.which 指令会在环境变量 $PATH ...
- SpringCloud学习笔记（六、SpringCloud Netflix Feign）
目录: feign简介 feign应用 feign简介: feign是一款Netflix开源的声明式.模板化的http客户端,它可以更加便捷.优雅的调用http api:SpringCloud对Net ...
- Centos 7 LAMP+wordpress
一.简介 LAMP--->Linux(OS).Apache(http服务器),MySQL(有时也指MariaDB,数据库) 和PHP的第一个字母,一般用来建立web应用平台. 它是 ...
- Ubuntu环境下打开Firefox报错: Firefox is already running, but is not responding.
在ubuntu下启动firefox可能会报错 Firefox is already running, but is not responding. To open a new window, you ...