How to use protobuf-net data as DataSource ?

[xiaosu]

I've got these codes : 

//********message.proto*********

message CommandMessageList{

repeated CommandMessage Command=1;

}

message CommandMessage { 

  required int32 ActionID = 1; 

  required string FromJID = 2;        

  optional string ReplyJID = 3; 

  required string Command = 4; 

  repeated string Parameters= 5; 

}

//C# code

CommandMessageList.Builder listBuilder = CommandMessageList.CreateBuilder();

CommandMessage.Builder cmdBuilder1 = CommandMessage.CreateBuilder();

 

cmdBuilder1.Command = "c1";

CommandMessage.Builder cmdBuilder2 = CommandMessage.CreateBuilder();

cmdBuilder2.Command = "c2";

listBuilder.AddCommand(cmdBuilder1.BuildPartial());

listBuilder.AddCommand(cmdBuilder2.BuildPartial());

CommandMessageList list = listBuilder.BuildPartial();

dataGridView1.DataSource = list.CommandList;

but nothing was loaded to the dataGridView1..  I wonder how to bind protobuf data to DataGridView control.  Thank you!