如何在代码（C＃和WPF）中以动态方式和编程方式更新具有更多行和列的列表框中的网格

Question

I have a ListBox where every of its item has a DataTemplate to define its structure. It initially has a Grid that contains 6 rows and 4 columns. But then during runtime I want to add to a specific ListBoxItem more rows and columns to that Grid in that DataTemplate. How do I do that? Do I need to create a new DataTemplate that contains the Grid with added rows and columns? I have seen so much examples that looks like what I want to achieve that got confused right now with all the Bindings, ObservableCollections, ViewModel and so on. What should I do? Here is the WPF code below for that specific ListBox:

    <ListBox Margin="0,138,28.58,156" Name="list" HorizontalAlignment="Right" Width="387.235" SelectionChanged="list_SelectionChanged">
        <ListBox.ItemTemplate>
            <DataTemplate>
                <Grid>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto" />
                        <RowDefinition Height="Auto" />
                        <RowDefinition Height="Auto" />
                        <RowDefinition Height="Auto" />
                        <RowDefinition Height="Auto" />
                        <RowDefinition Height="Auto" />
                    </Grid.RowDefinitions>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto" />
                        <ColumnDefinition Width="Auto" />
                        <ColumnDefinition Width="Auto" />
                        <ColumnDefinition Width="Auto" />
                    </Grid.ColumnDefinitions>

                </Grid>

            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

Answer 1

Actually there is another op asking similar question. You could take a look at his question. His question is actually your answer.

He uses a custom control that derivates from Grid and he calls it Board. Futhermore he adds rows and columns at run-time which seems exactly what you would like to achive.

Here is the link: wpf MouseMove-Event in Board class does not work