动态绑定 - 解析属性名的基础上栏 [英] Dynamic binding - resolving property name based on column

问题描述

我的ListView 在同一列中不同单元格（通过使用实现 DataTemplateSelector ）。这是非常简单的例子：

I have ListView with different cells in same column (achieved by using DataTemplateSelector). Here is very simplified example:

<ListView ItemsSource="{Binding Items}">
    <ListView.Resources>
        <l:ResultsSelector x:Key="result1">
            <l:ResultsSelector.TemplateResult>
                <DataTemplate>
                    <TextBlock Text="{Binding Result1}"/> <!-- how to make this dynamic? -->
                </DataTemplate>
            </l:ResultsSelector.TemplateResult>
           ...
       </l:ResultsSelector>
   ...
   </ListView.Resources>
   <ListView.View>
       <GridView>
           <GridViewColumn Header="Result1" CellTemplateSelector="{StaticResource result1}"/>
           <!-- would be nice to use same selector for all columns -->
           <GridViewColumn Header="Result2" CellTemplateSelector="{StaticResource result2}"/>
           <GridViewColumn Header="Result3" CellTemplateSelector="{StaticResource result3}"/>
           ...
       </GridView>
   </ListView.View>
</ListView>

查看模型：

private ObservableCollection<Item> _items;
public ObservableCollection<Item> Items
{
    get { return _items; }
    set
    {
        _items = value;
        OnPropertyChanged();
    }
}

public class Item: NotifyPropertyChangedBase
{
    public string Result1 {get; set;}
    public string Result2 {get; set;}
    public string Result3 {get; set;}
    ...
}

问题： ResultSelector 是所有结果列（也有其他的列），唯一的区别是绑定属性的名称相同：列结果1这是结果1 ， IsResult1 等，对于结果2 - 结果2 ， IsResult2 等

Problem: ResultSelector is the same for all result columns (there are also other columns), the only difference is names of bound properties: for column "Result1" it's Result1, IsResult1, etc., for "Result2" - Result2, IsResult2, etc.

目标：我想只是一次定义选择（正如我刚才所说，这是非常简化的版本，所以复制/粘贴RESULT1选择定义 N 时间是非常糟糕的选择，特别是如果我以后要改变一些东西）并用它在某种程度上所有列

Aim: I'd like to define selector just once (as I said earlier, this is very simplified version, so copy/paste "result1" selector definition N times is pretty bad option, especially if I have to change something later) and use it for all columns somehow.

问：有没有办法来组织的动态的约束力。在动态的我的意思是动态解析取决于列属性的名称。

Question: is there a way to organize dynamic binding. Under dynamic I mean dynamically resolved property name depending on column.

转换器？ 用户控件？想法？

推荐答案

请问像

public String Name
    {
        get { return name; }
        set { name = value; OnPropertyChanged("name"); }
    }

和

public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;
    private void OnPropertyChanged(string propertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
        }
    }

是一种可能性？这样，您至少可以生成字符串并添加此作为参数传递给OnPropertyChanged。

be a possibility? This way you could at least generate the string and add this as a parameter to the OnPropertyChanged.

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