There is a special property to map custom event attributes - DataTagFields.

Let's say your TimeEntry class looks like this:

public class TimeEntry {
  public DateTime Start {get; set;}
  public DateTime End {get; set; }
  public string Text {get; set;}
  public string Id {get; set;}
  public string Color {get; set;}
  public string Details {get; set;}
}

You will want to map Start, End, Text, and Id using DataStartField, DataEndField, DataTextField, and DataValueField.

Any other properties can be mapped using DataTagFields:

DataTagFields="Color, Details"

These fields can be accessed using e.Tag["Color"] and e.Tag["Details"] in the BeforeEventRender event handler.

See also Custom event rendering topic in the Calendar documentation (it works the same way for the Month control).

sweet. I'll give it a go this morning. thanks

My TimeEntry looks like this

public class TimeEntry {
public Task task
public DateTime Start {get; set;}
public DateTime End {get; set; }
public string Text {get; set;}
public string Id {get; set;}
public string Color {get; set;}
public string Details {get; set;}
}

and my Task looks like

public class Task{
public string description(get;set}

}

I'd like to get the description of the Task without having to add a pointer attribute in the TimeEntry

by pointer attribute I mean putting an attribute on TimeEntry like this

public TimeEntryDescription
{
get
{
return task.Description
}
}

Rather be able to dig to the attribute I'm needing. Thoughts?

It only works one level deep. You are not able to reach properties of properties at this moment.

If you need to reach properties of the task property, you would need to serialize them into a signle field:

public TimeEntryTaskProperties
{
  get
  {
 return String.Join(",", new string[] {task.Description, task.Whatever});
 }
}

And access them again using String.Split(",").

I'm not sure if this would be more convenient than mapping individual child properties though.