我正在使用SL4和MVVM-Light Toolkit。我不确定这里发生了什么。我似乎无法在网上找到解决此问题的任何内容。我有一个用户控件,我使用标准xmlns:local =“clr-namespace:WorkOrder.Views”语法,通过调用将其合并到我的MainPage.xaml中到本地:ListWorkOrdersView进一步向下我的页面。使用RelayCommand,当我单击“List Work Orders”按钮时,我在ListWorkOrdersView窗口中设置动画。
我已将ListWorkOrdersView上的数据绑定到测试数据的ObservableCollection(用于混合)。我想要做的是将RadGridView的SelectedItem绑定到我的ViewModel中的属性。如果我在SelectedWO属性的getter上放置一个断点,它会在我加载控件时触发,但如果我将它移动到setter,则不会触发断点。相关代码:
ListWorkOrdersView.xaml
<UserControl xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
x:Class="WorkOrder.Views.ListWorkOrdersView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
xmlns:GalaSoft_MvvmLight_Command="clr-namespace:GalaSoft.MvvmLight.Command;
assembly=GalaSoft.MvvmLight.Extras.SL4"
xmlns:System="clr-namespace:System;assembly=mscorlib"
xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"
mc:Ignorable="d"
DataContext="{Binding ListWorkOrders, Source={StaticResource Locator}}">
<Grid x:Name="master"
DataContext="{Binding ListWorkOrders, Source={StaticResource Locator}}">
<telerik:RadGridView x:Name="gvListWO" IsReadOnly="True"
AutoGenerateColumns="False" DataContext="{Binding wo}"
SelectedItem="{Binding ElementName=master,
Path=DataContext.SelectedWO, Mode=TwoWay}"
Grid.ColumnSpan="2"
Width="440"
Height="330"
ItemsSource="{Binding}">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn
DataMemberBinding="{Binding WORK_ORDER_NUMBER}"
Header="Work Order Number"/>
<telerik:GridViewDataColumn
DataMemberBinding="{Binding PROPOSED_BY}" Header="Proposed By"/>
<telerik:GridViewDataColumn
DataMemberBinding="{Binding DATE_PROPOSED}" Header="Date Proposed"/>
</telerik:RadGridView.Columns>
</telerik:RadGridView>
</Grid>
</UserControl>
相关ListWorkOrdersViewModel.cs(删除了用于数据绑定gridview本身的代码)
using GalaSoft.MvvmLight;
using GalaSoft.MvvmLight.Command;
using GalaSoft.MvvmLight.Messaging;
using WorkOrder.Model;
using System.Collections.ObjectModel;
using System.Collections.Generic;
using System;
namespace WorkOrder.ViewModel
{
public class ListWorkOrdersViewModel : ViewModelBase
{
public const string SelectedWOPropertyName = "SelectedWO";
private ObservableCollection<BWorkOrder> _selectedWO;
public ObservableCollection<BWorkOrder> SelectedWO
{
get
{
return _selectedWO;
}
set
{
if (_selectedWO == value) return;
_selectedWO = value;
RaisePropertyChanged(SelectedWOPropertyName);
}
}
}
}
关于为何没有正确绑定的任何想法?我完全不知所措!
答案 0 :(得分:0)
所以这个问题与我的财产有关。它被设置为ObservableCollection,这是我使用的,例如,填充我的DataGrid或RadGridView(telerik&amp; non telerik)。当我把它改成对象时,我很好。