平,
我在我的wpf应用程序中使用MVVM。我有DataGrid显示的项目列表,我已经在我的ViewModel中将SelectedItem
绑定到CurrentSequence
。当CurrentSequence
更改该对象的属性时,会在其他控件中显示以进行编辑。
继承我的xaml:
<DataGrid AutoGenerateColumns="False" ItemsSource="{Binding Path=ColorSettingsSequences}"
SelectedItem="{Binding Path=CurrentSequence, Mode=TwoWay}">
.... more things here ...
</DataGrid>
<StackPanel Grid.Column="0" Grid.Row="0">
<Grid>
<Label Content="Start temperature (°C)" Height="28" HorizontalAlignment="Left" x:Name="lblSeqStartTemp" VerticalAlignment="Top" />
<TextBox Height="23" Margin="0,28,10,0" x:Name="tbSeqStartTemp" VerticalAlignment="Top" Text="{Binding Path=CurrentSequence.StartTemp}" />
</Grid>
<Grid>
<Label Content="Start color" Height="28" HorizontalAlignment="Left" x:Name="lblSeqHue" VerticalAlignment="Top" />
<xctk:ColorPicker Margin="0,28,10,0" x:Name="clrpSeqHue" SelectedColor="{Binding Path=CurrentSequence.StartHue, Converter={StaticResource hueToColor}, ConverterParameter=False}" ShowStandardColors="False" />
</Grid>
</StackPanel>
<StackPanel Grid.Column="1" Grid.Row="0">
<Grid>
<Label Content="End temperature (°C)" Height="28" HorizontalAlignment="Left" x:Name="lblSeqEndTemp" VerticalAlignment="Top" />
<TextBox Height="23" Margin="0,28,10,0" x:Name="tbSeqEndTemp" VerticalAlignment="Top" Text="{Binding Path=CurrentSequence.EndTemp}" />
</Grid>
<Grid>
<Label Content="End color" Height="28" HorizontalAlignment="Left" x:Name="lblSeqEndHue" VerticalAlignment="Top" />
<xctk:ColorPicker Margin="0,28,10,0" x:Name="clrpSeqEndHue" SelectedColor="{Binding Path=CurrentSequence.EndHue, Converter={StaticResource hueToColor}, ConverterParameter=False}" ShowStandardColors="False" />
</Grid>
</StackPanel>
代码:
private ColorSettingsSequencesSequence _currentSequence;
public ColorSettingsSequencesSequence CurrentSequence
{
get
{
return this._currentSequence;
}
set
{
this._currentSequence = value;
OnPropertyChanged("CurrentSequence");
}
}
现在的问题是,我怎么能添加一个按钮来保存更改或添加一个全新的项目。我知道如何做一个或另一个,但2与相同的控件一起...
答案 0 :(得分:0)
您可以在视图模型上创建一个名为CurrentSequenceEdit的ColorSettingsSequencesSequence类型的属性,并且可以在更改选择时设置此对象的值。
然后单击添加按钮,您可以创建一个新的ColorSettingsSequencesSequence对象,并将其设置为CurrentSequenceEdit的值。
通常在新对象上,您将拥有未设置的ID或设置为负数,您可以在“保存”命令中使用该数字来确定是否需要将其添加到网格中。