The. net2.0 motherboard page conflicts with the custom control-my fault

. The net dashboard page conflicts with the custom control. The control render in the subinterval is ctl00 $ contentplaceholder1 $ button2, but the custom control outputs the original ID, the reason why the value changed from the client cannot be passed to the server is probably caused by inconsistent names.

This problem has been solved. This is my fault. During render, I used htmltextwriterattribute. ID, this. ID; Use htmltextwriterattribute instead. ID, this. clientid), and changed the relevant name attribute to OK .. the generated Id also contains $ or _.
It's strange that I'm not doing well.