C# 结构数组如何动态增加?

//农历节日
private struct LunarHolidayStruct
{
public int Month;
public int Day;
public int Recess;
public string HolidayName;

public LunarHolidayStruct(int month, int day, int recess, string name)
{
Month = month;
Day = day;
Recess = recess;
HolidayName = name;
}
}
//初始化
private static LunarHolidayStruct[] lHolidayInfo = new LunarHolidayStruct[]{
new LunarHolidayStruct(1, 1, 1, "春节"),
new LunarHolidayStruct(1, 15, 0, "元宵节"),
new LunarHolidayStruct(5, 5, 0, "端午节"),
new LunarHolidayStruct(7, 7, 0, "七夕情人节"),
new LunarHolidayStruct(7, 15, 0, "中元节 盂兰盆节"),
new LunarHolidayStruct(8, 15, 0, "中秋节"),
new LunarHolidayStruct(9, 9, 0, "重阳节"),
new LunarHolidayStruct(12, 8, 0, "腊八节"),
new LunarHolidayStruct(12, 23, 0, "北方小年(扫房)"),
new LunarHolidayStruct(12, 24, 0, "南方小年(掸尘)")
};
如何动态增加一项:
new LunarHolidayStruct(12, 25, 0, "ABCDE")
使之变为:
private static LunarHolidayStruct[] lHolidayInfo = new LunarHolidayStruct[]{
new LunarHolidayStruct(1, 1, 1, "春节"),
new LunarHolidayStruct(1, 15, 0, "元宵节"),
new LunarHolidayStruct(5, 5, 0, "端午节"),
new LunarHolidayStruct(7, 7, 0, "七夕情人节"),
new LunarHolidayStruct(7, 15, 0, "中元节 盂兰盆节"),
new LunarHolidayStruct(8, 15, 0, "中秋节"),
new LunarHolidayStruct(9, 9, 0, "重阳节"),
new LunarHolidayStruct(12, 8, 0, "腊八节"),
new LunarHolidayStruct(12, 23, 0, "北方小年(扫房)"),
new LunarHolidayStruct(12, 24, 0, "南方小年(掸尘)"),
new LunarHolidayStruct(12, 25, 0, "ABCDE")

};