I have added the template based on this link
我有一个添加按钮 - 当我通过Command点击它时,我将它添加到一个集合中。
<ItemsControl ItemsSource="{Binding Collection}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Grid DataContext="{StaticResource VieWModel}">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="15*"/>
<ColumnDefinition Width="40*"/>
</Grid.ColumnDefinitions>
<Label Content="GH" Grid.Row="0" Grid.Column="0" VerticalContentAlignment="Center"></Label>
<tk:RadComboBox Grid.Row="0" Grid.Column="0" Margin="10" IsFilteringEnabled="True" Width="150" DisplayMemberPath="D" IsEditable="True" ItemsSource="{Binding GK}" SelectedItem="{Binding SK, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">
<i:Interaction.Triggers>
<i:EventTrigger EventName="SelectionChanged">
<i:InvokeCommandAction Command="{Binding SelectionChangedCommand}" CommandParameter="{Binding}"/>
</i:EventTrigger>
</i:Interaction.Triggers>
</tk:RadComboBox>
<Label Content="HB" Grid.Row="0" Grid.Column="1" VerticalContentAlignment="Center"></Label>
<tk:RadComboBox Grid.Row="0" Grid.Column="1" Margin="10" IsFilteringEnabled="True" Name="cb" Width="350" IsEditable="True" DisplayMemberPath="D" ItemsSource="{Binding VR}" SelectedItem="{Binding VR1,Mode=TwoWay}">
</tk:RadComboBox>
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
ViewModel示例代码:
// Property for selected Item in combox1
Public ValBase SK{get;set;}
//Property off combobox1 binding
Public ValBase GK{get;set;}
// Property ofor selected Item in combox2
Public ValBase VR1{get; set;}
//Property ofr combobox2 binding
Public ValBase VR{get;set;}
Public void AddButton(object obj)
{
var item =new collectionbase();
Collection.Add(item)
}
每当我点击添加按钮时,都会添加此迭代。
MyRequirement :
我已经没有了想法如何实现这一点,任何人都可以提供帮助。 MVVM模式
答案 0 :(得分:0)
我猜你在MainViewModel和Command中有Collection来添加模型。
private Model _lastAdded;
public Model LastAdded
{
get{return _lastAdded;}
set{_lastAdded = value;}
}
private void AddCommand(object obj)
{
if(_lastAdded != null && _lastAdded.SelectedValue != null)
{
var newItem = new Model();
Collection.Add(newItem);
_lastAdded = newItem;
}
else
{
//Show message
}
}
答案 1 :(得分:0)
使用Selector Class.I使用CurrentInstance来绑定Collection现在正常工作