C# 8 and .NET Core 3 Projects Using Azure - Second Edition

Message and command binding

Finally, we have the second row, which is simply another grid inside the first. The interesting part is shown in the following code:

<TextBox Grid.Column="0" Grid.Row="0" x:Name="SendMsg" Text="{Binding MessageText}"/>
<Button Grid.Row="0" Grid.Column="1"  Command="{Binding SendMessageCommand}"  CommandParameter="{Binding ElementName=SendMsg, Path=Text, Mode=OneWay}"
        Content="Send" />

In the TextBox, we're binding the contents to something called MessageText. Again, don't worry about what MessageText is, although, given that it is bound to a Text property, we can safely assume that it is (or must be) a string.

Finally, we have a button and something called command binding. Unlike the other bindings, where we are, ...