C# – How to change Outlook Calendar Color in C#

ccalendarcolorsoutlook

I'm writing some C# code to view/add/edit AppointmentItems in Microsoft Outlook 2007. I'm accessing a secondary calendar (MAPIFolder), and I would like to programmatically change the color of the calendar. Is that possible?

Best Answer

myNamespace = outLookApp.GetNamespace("MAPI");
if (myNamespace.Categories["liveMeeting"] == null)
{
  myNamespace.Categories.Add("liveMeeting", OlCategoryColor.olCategoryColorDarkRed, OlCategoryShortcutKey.olCategoryShortcutKeyNone);
}
newEvent.Categories = "liveMeeting";

Related Solutions

C# – How to cast int to enum

From an int:

YourEnum foo = (YourEnum)yourInt;

From a string:

YourEnum foo = (YourEnum) Enum.Parse(typeof(YourEnum), yourString);

// The foo.ToString().Contains(",") check is necessary for enumerations marked with an [Flags] attribute
if (!Enum.IsDefined(typeof(YourEnum), foo) && !foo.ToString().Contains(","))
{
    throw new InvalidOperationException($"{yourString} is not an underlying value of the YourEnum enumeration.")
}

Update:

From number you can also

YourEnum foo = (YourEnum)Enum.ToObject(typeof(YourEnum) , yourInt);

C# – Create Generic method constraining T to an Enum

Since Enum Type implements IConvertible interface, a better implementation should be something like this:

public T GetEnumFromString<T>(string value) where T : struct, IConvertible
{
   if (!typeof(T).IsEnum) 
   {
      throw new ArgumentException("T must be an enumerated type");
   }

   //...
}

This will still permit passing of value types implementing IConvertible. The chances are rare though.

Best Answer

Related Solutions

C# – How to cast int to enum

C# – Create Generic method constraining T to an Enum

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