C # random partial data,

C # random partial data,

1. Use the Random pseudo-Random Generator

However, this will cause performance degradation due to the conversion to the array type, so you must avoid this usage.

2. Use Take to return the repeated start to specify the number of continuous elements

 

Every time this method comes in, The Guid is used for sorting, and then the first N items are obtained. The advantage is that there is basically no load on the memory, because it is sorted in the database, and N pieces of data are retrieved before being placed on the browser.