Of the secondary development of SolidWorks about c # small question want to ask next everybody bosses, for c # language is just started to learn,,,,

 ModelDoc2 swModel; 
ModelDocExtension swExt; 
SelectionMgr swSelMgr; 
Bool boolstatus; 
String y; 
Double r1. 
Double r2; 
Bool rad. 
Double ang; 
Double xOff; 
Double yOff; 
Bool LockStart; 
Bool LockEnd; 

Public void Main () 
{
SwModel=(ModelDoc2) swApp. ActiveDoc; 

Very curious swApp ActiveDoc is an attribute which is how to cast ModelDoc2 class that let I good confusion

CodePudding user response:

Either ActiveDoc is object type, or both have inheritance relationship

CodePudding user response:

What the two related knowledge? Say please? I'll get to learn, if it really is removed (ModeDoc2) can prompt the object classes can't implicitly converts ModeDoc2

CodePudding user response:

https://docs.microsoft.com/zh-cn/dotnet/api/system.object? View=netcore - 3.1