【发布时间】:2014-01-22 02:22:43
【问题描述】:
请原谅这个冗长的标题,我在描述简洁时遇到了麻烦。如果我能想出一个,我可能会在谷歌上找到正确的答案!
我将我的 DataGrid 绑定到一个 ObservableCollection 属性,这些属性本身具有属性。我的网格填充得很好,但是当我编辑网格时,更改并没有回到我的模型中。 我有一个 ObservableCollection
通常情况下,您只有一些 MarriedCoupleRow 的属性,但实际上我有一些稍微复杂的东西。每个 MarriedCoupleRow 都有一些属性(男性、女性),这些属性又会暴露属性(身高、体重、信息)。这是可以编辑的信息。同样,我可以很好地填充网格,但是当您编辑单元格并关闭(或离开)标签时,不会点击 Information 的 setter 属性。
我将不胜感激任何指针或参考,包括如何更好地表达我的标题!
这是简单的代码:
public class XMLDemoViewModel : ViewModelBase
{
public XMLDemoViewModel()
{
_rows = new ObservableCollection<MarriedCoupleRow>();
// create some data....
for (uint i = 0; i < 2;i++)
{
MarriedCoupleRow row = new MarriedCoupleRow();
row.Male = new HumanData();
row.Male.Height = (70 + i*5).ToString();
row.Male.Weight = 150+(i*30+1);
row.Male.Information = row.Male.Height + " " + row.Male.Weight;
row.Female = new HumanData();
row.Female.Height = (60 +i*3).ToString();
row.Female.Weight = 120+(i*10+5);
row.Female.Information = row.Female.Height + " " + row.Female.Weight;
_rows.Add(row);
}
}
#region Fields
private ObservableCollection<MarriedCoupleRow> _rows = null;
#endregion Fields
#region Properties
public ObservableCollection<MarriedCoupleRow> Rows
{
get
{
return _rows;
}
}
#endregion Properties
#region Commands
#endregion Commands
#region Private Methods
#endregion Private Methods
}
public class MarriedCoupleRow : ViewModelBase
{
private HumanData _Male = null;
public HumanData Male
{
get { return _Male; }
set
{
if (value != _Male)
{
_Male = value;
OnPropertyChanged("Male");
}
}
}
public HumanData Female { get; set; }
}
public class HumanData : INotifyPropertyChanged
{
public string Height { get; set; }
public uint Weight { get; set; }
private string _friendlyName;
public string Information
{
get
{
return _friendlyName;
}
set
{
if (_friendlyName != value)
{
_friendlyName = value;
OnPropertyChanged("Information");
}
}
}
}
这是 XAML:
<Window x:Class="XMLDemo.Views.XMLDemoView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="XMLDemoView" Height="600" Width="1152">
<DockPanel>
<StackPanel Orientation="Horizontal" Height="120" DockPanel.Dock="Bottom">
<StackPanel Orientation="Horizontal">
<GroupBox Width="249" BorderThickness="2" Height="90">
<GroupBox.Header>
<TextBlock FontSize="12" FontWeight="Bold">Control</TextBlock>
</GroupBox.Header>
<Grid Height="64" Width="223">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0.5*" />
<ColumnDefinition Width="0.5*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="0.5*"/>
<RowDefinition Height="0.5*"/>
</Grid.RowDefinitions>
</Grid>
</GroupBox>
</StackPanel>
</StackPanel>
<DataGrid ItemsSource="{Binding Path=Rows, UpdateSourceTrigger=PropertyChanged}" AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridTemplateColumn>
<DataGridTemplateColumn.HeaderTemplate >
<DataTemplate>
<Grid ShowGridLines="True">
<Grid.RowDefinitions>
<RowDefinition />
</Grid.RowDefinitions>
<TextBlock Text="Male" />
</Grid>
</DataTemplate>
</DataGridTemplateColumn.HeaderTemplate>
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBox Text="{Binding Male.Height}" IsEnabled="False" Grid.Row="0"></TextBox>
<TextBox Text="{Binding Male.Weight}" IsEnabled="False" Grid.Row="1"></TextBox>
<TextBox Text="{Binding Male.Information, Mode=TwoWay}" Grid.Row="2"></TextBox>
</Grid>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
<DataGridTemplateColumn>
<DataGridTemplateColumn.HeaderTemplate >
<DataTemplate>
<Grid ShowGridLines="True">
<Grid.RowDefinitions>
<RowDefinition />
</Grid.RowDefinitions>
<TextBlock Text="Female" />
</Grid>
</DataTemplate>
</DataGridTemplateColumn.HeaderTemplate>
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Grid >
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBox Text="{Binding Female.Height}" IsEnabled="False" Grid.Row="0"></TextBox>
<TextBox Text="{Binding Female.Weight}" IsEnabled="False" Grid.Row="1"></TextBox>
<TextBox Text="{Binding Female.Information}" Grid.Row="2"></TextBox>
</Grid>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
</DockPanel>
【问题讨论】:
标签: wpf data-binding wpfdatagrid observablecollection