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Showing posts from November 12, 2018

Chokusen wakashū

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It has been suggested that Nijūichidaishū be merged into this article. (Discuss) Proposed since January 2018. The chokusen wakashū (勅撰和歌集), also shortened to chokusenshū (勅撰集), were imperially-commissioned Japanese anthologies of waka poetry. They numbered 21 in total (the so-called nijūichidaishū ). Contents 1 Overview 2 Commissioners and compilers 3 References 4 Works cited Overview The term chokusen wakashū (hereafter shortened to chokusenshū ) refers to anthologies of waka poetry compiled and presented for inspection on the order of either a reigning emperor of Japan, or a retired or cloistered emperor. [1] The first was the Kokin Wakashū compiled at the beginning of the tenth century [1] and the last was the Shinshoku Kokin Wakashū compiled in the first half of the fifteenth century, [1] with 21 in total. [1] The first three chokusenshū are referred to as the sandaishū , [1] the first eight (through the Shin-Kokin Wakashū ) as ...

Filter large list object on data from another large list: slow performance

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up vote 5 down vote favorite 4 I have two large lists of object. First (about of 1 000 000 objects ): public class BaseItem { public BaseItem() { } public double Fee { get; set; } = 0; public string Market { get; set; } = string.Empty; public string Traider { get; set; } = string.Empty; public DateTime DateUtc { get; set; } = new DateTime(); } Second (about of 20 000 objects ): public class TraiderItem { public TraiderItem() { } public DateTime DateUtc { get; set; } = new DateTime(); public string Market { get; set; } = string.Empty; public string Type { get; set; } = string.Empty; public double Price { get; set; } = 0; public double Amount { get; set; } = 0; public double Total { get; set; } = 0; public double Fee { get; set;...