WPF绑定列表<字典< string，string>>到一个ListBox [英] WPF binding List<Dictionary<string,string>> to a ListBox

问题描述

  var list = new List< Dictionary< string，string>> {
 new Dictionary< string，string> {
 {id，1 }，
 {name，foo}，
}，
新词典< string，string> {
 {id，2}，
 {name，bar}，
} 
}; 
  

我想将此列表绑定到列表框。这很简单：

  listBox.ItemsSource = list; 
  

但问题是：我无法控制列表框中显示的内容。我想要显示的是dict [name]。我试过：

  listbox.DisplayMemberPath =name
  
解决方案
您的代码尝试显示一个名称名称的属性，不存在。要访问索引器，请使用以下语法：
  listBox.DisplayMemberPath =[name]; 
  
此外，您应该可以直接在XAML中设置这样的东西，而不是代码隐藏。 / p> 
var list = new List<Dictionary<string, string>>{
                new Dictionary<string,string>{
                    {"id","1"},
                    {"name","foo"},
                }, 
                new Dictionary<string,string>{
                    {"id","2"},
                    {"name","bar"},
                }
            };
I want to bind this list to a listbox. It's quite simple: 
listBox.ItemsSource=list;
but the problem is: I can't control what is displayed in the listbox. What I want is to display is dict["name"]. I tried:
listbox.DisplayMemberPath="name"
Sadly it doesn't work.
解决方案
Your code tries to display a property called name on the dictionary, which doesn't exist. To access an indexer use the following syntax:
listBox.DisplayMemberPath = "[name]";
Also, you should be probably setting things like this directly in XAML, not in code-behind.

                        
这篇关于WPF绑定列表&lt;字典&lt; string，string&gt;&gt;到一个ListBox的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！