Sending an object in a message

MIP
, ,
1

I am unable to send an object of a class i created in a message. I have only tried to send strings as messages earlier.

Is it even possible to send objects in a message?

If yes, what is the correct way to do this?

2

Yes, it is possible. Below is short and simple example. When you receive message you should cast Data to type of your object.

Message msg = new Message(PluginDefinition.TabUserControlLoaded);
msg.Data = yourObject;
_messageCommunication.TransmitMessage(msg, null, null, null);
3

​This is what I have been trying to do. But i get this exception everytime: Object reference not set to an instance of an object.

It seems like the object that I am sending disappears.

Thats why I had to ask if it even was possible.

_messageCommunication.TransmitMessage(new Message(ABBPlugin_v1Definition.MsgToView1){ Data=_steinsvik }, null, null, null);

_steinsvik is the object. Sending this from the background, to the ViewItemWpfUserControl

if (message.Data is Steinsvik)

{

_steinsvik=(Steinsvik)message.Data;

}

Any tips of what might be wrong?

4

Please try and explore Chat sample, this sample might be helpful -

https://doc.developer.milestonesys.com/html/index.html?base=samples/chat.html&tree=tree_1.html