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Description of Entity notes corresponding to the automatic association query and automatic association update navigation properties of Entity Framework, entityframework I. First, I want to know about the automatic association query of Entity Framework: Automatic association query of Entity Framework. Three methods are available: Lazy Loading (delayed Loading), Eager Loading (preload), and Explicit Loading (

As an integral part of Windows Server 8, Cluster-Aware Updating provides a reliable and automatic update function for Server clusters. This tool allows the system administrator to update the server of the Cluster. During the update process, there is little or no loss of availability. It is designed to reduce service interruptions, eliminate the need for manual up

) {_startcoordainateytext, _startcoordainatextext};}if (_endcoordainateytext _endcoordainatextext) {ENDPT = (cllocationcoordinate2d) {_endcoordainateytext, _endcoordainatextext};}bmkplannode* start = [[Bmkplannode alloc]init];start.pt = STARTPT;Start.name = nil;bmkplannode* end = [[Bmkplannode alloc]init];end.pt = ENDPT;End.name = nil;BOOL flag = [_search drivingsearch:nil startnode:start Endcity:nil endnode:end];if (!flag) {NSLog (@ "search failed");}[Start release];[End release];[Self region]

In short, to make all things, are DbContext managed state 1, check out, change, and then submit 2, new out, attach, then change, and then submit Both of the above are better understood 3, new out, changed, and then attach, in the state of change, and then submit Change state here, it is not the same as the normal property (X=>x.?). Ismodify=true, navigation properties cannot be used in this way Because the navigat