从usercontrol访问项源对象 [英] Accessing items source object from usercontrol

问题描述

所以我在Xaml中有这个代码

 <   ItemsControl    保证金  =  10    DockPanel.Dock   = 左  
        < span class =code-attribute>                             ItemsSource   =  {Binding SnippetList}  >  
 <   ItemsControl.ItemTemplate  >  
 <   DataTemplate  >  
 <   v：MyUserControl    保证金  =  2  /  >  
 <   / DataTemplate   >  
 <   / ItemsControl.ItemTemplate  >  
 <   / ItemsControl  >  
 

如何访问绑定的SnippetList对象从MyUserControl的代码后面的MyUserControl。我知道这是一个简单的问题，但请帮助。



这样的东西就是我需要的东西

SnippetList是一个SnippetObject的ObservableCollection

 SnippetObject temp =  this  .getSnippetObject（）;  //  这是指MyUserControl  

我需要SnippetObject中的对象从一些计算中使用它而不是用于绑定它。

解决方案

如果你想访问你的ItemsControl UserControl代码隐藏文件，您需要为ItemsControl指定一个名称：

 <   itemscontrol     x：name   =  MyItemsControl Items =   路径  = 项目}      xmlns：x   = ＃unknown    /  >  

然后使用此名称访问ItemsControl：

  foreach （ var  item  in  MyItemsControl.Items）
 {
 
} 

如果要从UserControl外部访问ItemsControl，首先需要在UserControl上定义属性，然后使用该属性访问ItemsControl。



UROS

So I have this Code in Xaml

<ItemsControl Margin="10" DockPanel.Dock="Left"
                 ItemsSource="{Binding SnippetList}">
                       <ItemsControl.ItemTemplate>
                           <DataTemplate>
                               <v:MyUserControl Margin="2"/>
                           </DataTemplate>
                       </ItemsControl.ItemTemplate>
                   </ItemsControl>

How can I access the object of SnippetList which is bound to a MyUserControl from MyUserControl's code behind. I know it is a simple question but please help.

Something like this is what I require
SnippetList is an ObservableCollection of SnippetObject

SnippetObject temp = this.getSnippetObject(); //this refers to MyUserControl

I need objects in SnippetObject to use it from some calculations and not for binding it.

解决方案

If you want to access your ItemsControl in the UserControl code-behind file, you need to give the ItemsControl a name like:

<itemscontrol x:name="MyItemsControl Items=" path="Items}"" xmlns:x="#unknown" />

Then use this name to access the ItemsControl:

foreach(var item in MyItemsControl.Items)
{

}

If you want to access the ItemsControl from outside of the UserControl you first need to define a property on your UserControl and than use that property to access the ItemsControl.

Uroš

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