我的DataGrid中有这个goto功能。这个功能我想保留我的ViewModel和代码隐藏,所以以下附件可能是完美的,但是......
用户输入一行(项目)编号,然后当用户点击GotoButton时,它会将项目带入视图。
<Grid>
<TextBox x:Name="GotoTextbox" Text="{Binding GotoLineNumber, UpdateSourceTrigger=PropertyChanged}" />
<Button Name="GotoButton" >
<i:Interaction.Triggers>
<i:EventTrigger EventName="Click">
<helpers:TargetedTriggerActionGotoButton TargetObject="{Binding ElementName=GenericDataGrid}" />
</i:EventTrigger>
</i:Interaction.Triggers>
</Button>
</Grid>
这是TargetedTriggerAction类。
public class TargetedTriggerActionGotoButton : TargetedTriggerAction<DataGrid>
{
protected override void Invoke(object parameter)
{
this.Target.SelectedGridItem = GotoLineNumber - 1;
this.Target.SelectedGridIndex = GotoLineNumber.GetValueOrDefault() - 1;
}
}
我想以某种方式从GotoTextbox传递文本,我可以做一些绑定吗?我怎么能做到这一点?
答案 0 :(得分:1)
正如我们在评论中所说的那样
要允许传入参数,应在TargetedTriggerAction
public class TargetedTriggerActionGotoButton : TargetedTriggerAction<DataGrid>
{
protected override void Invoke()
{
this.Target.SelectedGridItem = GotoLineNumber - 1;
this.Target.SelectedGridIndex = GotoLineNumber.GetValueOrDefault() - 1;
}
//property used as parameter
public object Parameter {get;set;}
}
然后在xaml
<Grid>
<TextBox x:Name="GotoTextbox" Text="{Binding GotoLineNumber, UpdateSourceTrigger=PropertyChanged}" />
<Button Name="GotoButton" >
<i:Interaction.Triggers>
<i:EventTrigger EventName="Click">
<helpers:TargetedTriggerActionGotoButton TargetObject="{Binding ElementName=GenericDataGrid}" Parameter="{Binding ElementName="/*desiredName*/",Path="/*neededValue*/"}" />
</i:EventTrigger>
</i:Interaction.Triggers>
</Button>