Each list item must be
TextBlock 1 fill first row with 100% width;
TextBlock 2,3,4 must fill 33% each on separate row;
Why TextBlock 2,3,4 not strech?
<ListView.ItemTemplate><DataTemplate><StackPanel>
<TextBlock Text="{Binding Name}" />
<Grid HorizontalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition></RowDefinition>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"></ColumnDefinition>
<ColumnDefinition Width="*"></ColumnDefinition>
<ColumnDefinition Width="*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock TextAlignment="Right" Grid.Row="0" Grid.Column="0"
HorizontalAlignment="Stretch" VerticalAlignment="Center"
Text="{Binding Rest}" FontSize="28"/>
<TextBlock TextAlignment="Right" Grid.Row="0" Grid.Column="1"
HorizontalAlignment="Stretch" VerticalAlignment="Center"
Text="{Binding Currency.Name}" FontSize="25"/>
<TextBlock TextAlignment="Right" Grid.Row="0" Grid.Column="2"
HorizontalAlignment="Stretch" VerticalAlignment="Center"
Text="{Binding FullRest}" FontSize="22"/>
</Grid>
</StackPanel></DataTemplate></ListView.ItemTemplate>
P.S.
How i can add 1...x rows in list view in design time?
Use ListView.ItemContainerStyle
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ListView.ItemContainerStyle>