Creating the LocalSimpleTextMessage class

To make it easier to recognize whether a message is coming from the server or whether it is being sent by the user of the device that the code is executing on, we will create a LocalSimpleTextMessage:

1. Create a new class called LocalSimpleTextMessage in the Chat.Messages project.

2. Add SimpleTextMessage as the base class.

3. Create a constructor with SimpleTextMessage as the parameter.

4. Set the value to all of the base properties with the value from the parameter, as shown in the following code:

public class LocalSimpleTextMessage : SimpleTextMessage
{
    public LocalSimpleTextMessage(SimpleTextMessage message)
    {
        Id = message.Id;
        Text = message.Text;
        Timestamp = message.Timestamp;
        Username = message.Username;
        TypeInfo = message.TypeInfo;
    }
}