https://www.cnblogs.com/chyg/p/5404591.html...

 https://stackoverflow.com/questions/16938151/uniqueidentifier-in-sql-becomes-lower-case-in-c-sharpIfyouusingEntityFramework,uniqueidentifierdatawillconver...

Control.ClientID ClientIDwillbeauniqueIDstringthatisrenderedtotheclienttoidentifythecontrolintheoutputHTML.Ituses_toincludeparentcontrols(container)IDtomak...