Binding ListView to filter selected item from another ListView

Question

I have two ListView items in a WPF application that I'm developion. They are both connected to Datasets in the Presenter ViewModel in my application.

My original idea was to load my SelectedItem in my ListView into a TextBox, and then have that fire off a filter for the second ListView

However, I've run into a problem: I want to filter by number, and the TextBox only seems to want to take in text. Is there a workaround for this?

Here is my XAML

<Grid Margin="5,2,5,2" Height="350">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="1*"/>
        <ColumnDefinition Width="1*"/>
    </Grid.ColumnDefinitions>
    <ListView x:Name="TypeView" Grid.Column="0" ItemsSource="{Binding CashActivityTypes}" Margin="0,0,10,0">
        <ListView.View>
            <GridView>
                <!--This is the column I want to get -->
                <GridViewColumn Header="Sequence" DisplayMemberBinding="{Binding Sequence}" Width="75"/>
                <GridViewColumn Header="Activity Type" DisplayMemberBinding="{Binding Type}" Width="200"/>
                <GridViewColumn Header="Description" DisplayMemberBinding="{Binding Description}" Width="Auto"/>
            </GridView>
        </ListView.View>
    </ListView>
    <ListView Grid.Column="1" Margin="10,2,0,2">
        <ListView.View>
            <GridView>
                <GridViewColumn Header="Sequence" Width="75"/>
                <GridViewColumn Header="Activity" Width="200"/>
                <GridViewColumn Header="Description" Width="Auto"/>
            </GridView>
        </ListView.View>
    </ListView>
</Grid>
<Grid Margin="5,2,5,2">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="1*"/>
        <ColumnDefinition Width="1*"/>
    </Grid.ColumnDefinitions>
    <TextBox Text="{Binding SelectedItem.Sequence, ElementName=TypeView, UpdateSourceTrigger=PropertyChanged}" Width="150" HorizontalAlignment="Left"/>
    <Button Grid.Column="1" Content="Adjust Daily Cash Activity" MinWidth="150" Height="20" HorizontalAlignment="Right"/>
</Grid>

Answer 1

You can do two-way binding on the 1st listview selectedItem property to VievModel:

private <TYPE> _CashActivityTypeSelected;

public <TYPE> CashActivityTypeSelected 
{
get
 {
   return _CashActivityTypeSelected;
 }
set
{
  _CashActivityTypeSelected=value; 
  FilterMySecondCollectionView(value);
 };

in xaml:

<ListView SelectedItem="{Binding CashActivityTypeSelected, mode=TwoWay}" x:Name="TypeView" Grid.Column="0" ItemsSource="{Binding CashActivityTypes}" Margin="0,0,10,0">
        <ListView.View>
            <GridView>
                <!--This is the column I want to get -->
                <GridViewColumn Header="Sequence" DisplayMemberBinding="{Binding Sequence}" Width="75"/>
                <GridViewColumn Header="Activity Type" DisplayMemberBinding="{Binding Type}" Width="200"/>
                <GridViewColumn Header="Description" DisplayMemberBinding="{Binding Description}" Width="Auto"/>
            </GridView>
        </ListView.View>
    </ListView>

and then in FilterMySecondCollectionView(object t) you can apply whatever filter you want based on selected object.