ASP. NET calls the method between user control and parent page and user control on the same page.

// Get parent page Page P = This . Parent. page; Type pagetype = P. GetType (); // Method Name of the parent page Methodinfo Mi = Pagetype. getmethod ( " Loading " ); // Run Mi. Invoke (p, New Object [] { " Parameter 1 " , " Parameter 2 " }); Call between a user control and a user control: // Get parent page Page P = This . Parent. page; // Obtain the child control of the parent page Usercontrol UC = P. findcontrol ( " Tj_receiptlist2 " ) As Usercontrol; Type pagetype = UC. GetType (); // Parent method name Methodinfo Mi = Pagetype. getmethod ( " Loading " ); // Parameters Mi. Invoke (UC, New Object [] { " Parameter 1 " , " Parameter 2 " });