结合到结构 [英] Binding to a structure

问题描述

我想一个ListView项绑定到一个结构中的一员，但我无法得到它的工作。

结构很简单：

 公共结构DeviceTypeInfo
{
    公共字符串DEVICENAME;
    公众诠释deviceReferenceID;
};
 

在我的视图模型我认为这些结构的列表，我想要得到的设备名称，以显示在列表框中。

 公共类DevicesListViewModel
{
    公共DevicesListViewModel（）
    {    }    公共无效setListOfAvailableDevices（列表＆LT; D​​eviceTypeInfo＆GT; devicesList）
    {
        m_availableDevices = devicesList;
    }    公开名单＆LT; D​​eviceTypeInfo＆GT;设备
    {
        {返回m_availableDevices; }
    }    私人列表＆LT; D​​eviceTypeInfo＆GT; m_availableDevices;
}
 

我曾尝试以下，但我不能让绑定工作，做我需要使用的RelativeSource？

 ＆LT;列表框名称=DevicesListViewGrid.Column =0VerticalAlignment =底的Horizo​​ntalAlignment =中心保证金=10了minHeight =250了minWidth = 150的ItemsSource ={结合设备}WIDTH =自动＆GT;
        ＆LT; ListBox.ItemTemplate＆GT;
            ＆LT;＆DataTemplate的GT;
                ＆LT; StackPanel的方向=垂直＆GT;
                    ＆LT; TextBlock的文本={结合DeviceTypeInfo.deviceName}/＆GT;
                ＆LT; / StackPanel的＆GT;
            ＆LT; / DataTemplate中＆GT;
        ＆LT; /ListBox.ItemTemplate>
    ＆LT; /列表框＆GT;
 

解决方案

您需要让会员在结构中的属性。

 公共结构DeviceTypeInfo
{
    公共字符串DEVICENAME {搞定;组; }
    公众诠释deviceReferenceID {搞定;组; }
};
 

昨天我碰到了类似的情况：P

编辑：哦，是的，而像杰西说，一旦你把它们变成属性，你要设置的<一个href=\"http://msdn.microsoft.com/en-us/library/system.componentmodel.inotifypropertychanged.aspx\">INotifyPropertyChanged事件。

I am trying to bind a listview item to a member of a structure, but I am unable to get it to work.

The structure is quite simple:

public struct DeviceTypeInfo
{
    public String deviceName;
    public int deviceReferenceID;
};

in my view model I hold a list of these structures and I want to get the "deviceName" to be displayed in a list box.

public class DevicesListViewModel
{
    public DevicesListViewModel( )
    {

    }

    public void setListOfAvailableDevices(List<DeviceTypeInfo> devicesList)
    {
        m_availableDevices = devicesList;
    }

    public List<DeviceTypeInfo> Devices
    {
        get { return m_availableDevices; }
    }

    private List<DeviceTypeInfo> m_availableDevices;
}

I have tried the following but I can't get the binding to work, do I need to use relativesource?

    <ListBox Name="DevicesListView" Grid.Column="0" VerticalAlignment="Bottom" HorizontalAlignment="Center" Margin="10"  MinHeight="250" MinWidth="150"  ItemsSource="{Binding Devices}" Width="Auto">
        <ListBox.ItemTemplate>
            <DataTemplate>
                <StackPanel Orientation="Vertical">
                    <TextBlock Text="{Binding DeviceTypeInfo.deviceName}"/>
                </StackPanel>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

解决方案

You need to make the members in the struct properties.

public struct DeviceTypeInfo 
{    
    public String deviceName { get; set; }     
    public int deviceReferenceID { get; set; } 
}; 

I ran into a similar situation yesterday :P

EDIT: Oh yeah, and like Jesse said, once you turn them into properties, you'll want to set up the INotifyPropertyChanged event.

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