我是WPF的新手,我有一个问题。我有组织模块:
class Organization : ObservableObject
{
public string OrganizationName { get; set; }
}
我有组织的ViewModel:
class OrganizationViewModel : ObservableObject
{
int _count = 0;
public OrganizationViewModel()
{
Organization = new Organization {OrganizationName = "New Organization"};
}
public Organization Organization { get; set; }
public string OrganizationName
{
get { return Organization.OrganizationName; }
set
{
if(Organization.OrganizationName != value)
{
Organization.OrganizationName = value;
RaisePropertyChanged("OrganizationName");
}
}
}
我有所有组织的ViewModel:
class AllOrganizationsViewModel
{
private ObservableCollection<OrganizationViewModel> m_organizations = new ObservableCollection<OrganizationViewModel>();
public ObservableCollection<OrganizationViewModel> Organizations
{
get { return m_organizations; }
set { m_organizations = value; }
}
public AllOrganizationsViewModel()
{
for(int i = 0; i < 3; ++i)
{
m_organizations.Add(new OrganizationViewModel());
}
}
void AddOrganizationNameExecute()
{
m_organizations.Add(new OrganizationViewModel());
}
bool CanAddOrganizationNameExecute()
{
return true;
}
public ICommand AddOrganization{get{return new RelayCommand(AddOrganizationNameExecute, CanAddOrganizationNameExecute);}}
}
这是主窗口.xaml:
<Window x:Class="DataIntegrityChecker.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:DataIntegrityChecker.ViewModels" Title="MainWindow" Height="350" Width="525">
<Window.DataContext>
<local:AllOrganizationsViewModel />
</Window.DataContext>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="285*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="156" />
<ColumnDefinition Width="347*" />
</Grid.ColumnDefinitions>
<Label Content="Organization: " Margin="0,0,44,0" />
<Button Grid.Row="1" Name="UpdateOrganizations" Content="Update Organization Name" Command="{Binding AddOrganization}" Margin="0,0,0,262" HorizontalAlignment="Left" Width="156" />
<ComboBox Grid.Column="1" Grid.Row="1" Height="23" HorizontalAlignment="Left" Name="comboBox1" VerticalAlignment="Top" Width="155" ItemsSource="{Binding Organizations}" />
</Grid>
</Window>
现在,我在ComboBox项中得到的是类OrganizationViewModel的名称,但我需要的是OrganizationName字符串。在我看来,我缺少了一些到OrganizationName的绑定,但如果(如果这是个问题的话)我假设我可以用我需要的组织的名称创建一个字符串集合。但是在将来,我将需要更多的属性在组织类中,所以这是我需要它的工作方式。
我将感激任何帮助
3条答案
按热度按时间vcirk6k61#
您需要添加
DisplayMemberPath
:swvgeqrz2#
另一种方法是通过定义ItemTemplate。它在显示上提供了更大的灵活性
monwx1rj3#
这是我的建议,以解决您的问题:
代码隐藏:
和
在Xaml文件中:
请记住,在显示组合框之前,请确保已填充可观察集合!