Solve the Problem of displaying the Red Cross in the C # devexpress treelist Control

A winform product developed with vs2008 recently found a strange problem. After searching, treelist always shows a Big Red Cross and the same EXE database asks him to use the computer.

It seems that there is still a problem with my local development environment, but it is still true.CodeSo I found that there were not many technical posts on the Internet.Technical materials

Turn to myProgramDebug debugging won't help, because it doesn't even get in. Later, I accidentally discovered such code.

Treelist1.beginupdate () ...... treelist1.endupdate ();

Comment out all run tests. OK.

Adding this makes sense. It means that the C # GDI plot has a certain dependence on system resources, so it will not affect normal use.