Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

fixing adding item into treeview if item not have parent item #771

Open
wants to merge 1 commit into
base: master
Choose a base branch
from

Conversation

dedalqq
Copy link

@dedalqq dedalqq commented Mar 17, 2021

I tried add new item that not have parent in to treeview but get error

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x20 pc=0x6136d5]

goroutine 1 [running, locked to thread]:
github.com/lxn/walk.(*TreeView).SetModel.func3(0x76d280, 0xc000006188)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/treeview.go:178 +0xc5
github.com/lxn/walk.(*TreeItemEventPublisher).Publish(0xc0000a60a0, 0x76d280, 0xc000006188)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/treeitemevent.go:55 +0x96
github.com/lxn/walk.(*TreeModelBase).PublishItemInserted(...)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/models.go:704
main.(*UserInterface).showCreateFolderDialog.func1()
        C:/Users/dedal.qq/Procect/qclient/userInterface_windows.go:84 +0x1bc
github.com/lxn/walk.(*EventPublisher).Publish(0xc00014c330)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/event.go:71 +0xaf
github.com/lxn/walk.(*Button).raiseClicked(...)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/button.go:195
github.com/lxn/walk.(*Button).WndProc(0xc00014c000, 0x308c8, 0x111, 0x8, 0x400842, 0xab7a554367bfc007)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/button.go:210 +0xb8
github.com/lxn/walk.(*PushButton).WndProc(0xc00014c000, 0x308c8, 0x111, 0x8, 0x400842, 0x411831)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/pushbutton.go:115 +0x6e
github.com/lxn/walk.(*ContainerBase).WndProc(0xc0000c3880, 0x308c8, 0x111, 0x8, 0x400842, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/container.go:345 +0x55b
github.com/lxn/walk.defaultWndProc(0x308c8, 0x111, 0x8, 0x400842, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/window.go:2159 +0xf0
syscall.Syscall6(0x7ffcb9715860, 0x5, 0x7ffcacd6da30, 0x400842, 0x202, 0x0, 0xf0028, 0x0, 0x0, 0x0, ...)
        C:/go/src/runtime/syscall_windows.go:201 +0xfa
github.com/lxn/win.CallWindowProc(0x7ffcacd6da30, 0x400842, 0x202, 0x0, 0xf0028, 0x5)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/user32.go:2138 +0x8f
github.com/lxn/walk.(*WindowBase).WndProc(0xc00014c000, 0x400842, 0x202, 0x0, 0xf0028, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/window.go:2511 +0x1eb
github.com/lxn/walk.(*Button).WndProc(0xc00014c000, 0x400842, 0x202, 0x0, 0xf0028, 0xab7a554367bfc007)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/button.go:218 +0x8c
github.com/lxn/walk.(*PushButton).WndProc(0xc00014c000, 0x400842, 0x202, 0x0, 0xf0028, 0xc000087f58)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/pushbutton.go:115 +0x6e
github.com/lxn/walk.defaultWndProc(0x400842, 0x202, 0x0, 0xf0028, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/window.go:2159 +0xf0
syscall.Syscall(0x7ffcb9716b30, 0x2, 0x1208a4, 0xf295e0, 0x0, 0x0, 0x0, 0x0)
        C:/go/src/runtime/syscall_windows.go:188 +0xfa
github.com/lxn/win.IsDialogMessage(0x1208a4, 0xf295e0, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/user32.go:2834 +0x72
github.com/lxn/walk.(*FormBase).mainLoop(0xc0000bac00, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/mainloop_default.go:35 +0xe2
github.com/lxn/walk.(*FormBase).Run(0xc0000bac00, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/form.go:375 +0xd5
github.com/lxn/walk.(*Dialog).Run(0xc0000bac00, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/dialog.go:236 +0x42
github.com/lxn/walk/declarative.Dialog.Run(0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/declarative/dialog.go:182 +0x103
main.(*UserInterface).showCreateFolderDialog(0xc000004700)
        C:/Users/dedal.qq/Procect/qclient/userInterface_windows.go:92 +0x457
github.com/lxn/walk.(*EventPublisher).Publish(0xc0000ba730)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/event.go:71 +0xaf
github.com/lxn/walk.(*Button).raiseClicked(...)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/button.go:195
github.com/lxn/walk.(*Button).WndProc(0xc0000ba400, 0x11089a, 0x111, 0x1, 0x608ac, 0x1593d067e607e885)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/button.go:210 +0xb8
github.com/lxn/walk.(*PushButton).WndProc(0xc0000ba400, 0x11089a, 0x111, 0x1, 0x608ac, 0x411831)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/pushbutton.go:115 +0x6e
github.com/lxn/walk.(*ContainerBase).WndProc(0xc0000c2e00, 0x11089a, 0x111, 0x1, 0x608ac, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/container.go:345 +0x55b
github.com/lxn/walk.defaultWndProc(0x11089a, 0x111, 0x1, 0x608ac, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/window.go:2159 +0xf0
syscall.Syscall6(0x7ffcb9715860, 0x5, 0x7ffcacd6da30, 0x608ac, 0x202, 0x0, 0xd0058, 0x0, 0x0, 0x0, ...)
        C:/go/src/runtime/syscall_windows.go:201 +0xfa
github.com/lxn/win.CallWindowProc(0x7ffcacd6da30, 0x608ac, 0x202, 0x0, 0xd0058, 0x5)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/user32.go:2138 +0x8f
github.com/lxn/walk.(*WindowBase).WndProc(0xc0000ba400, 0x608ac, 0xc000000202, 0x0, 0xd0058, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/window.go:2511 +0x1eb
github.com/lxn/walk.(*Button).WndProc(0xc0000ba400, 0x608ac, 0x202, 0x0, 0xd0058, 0x1593d067e607e885)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/button.go:218 +0x8c
github.com/lxn/walk.(*PushButton).WndProc(0xc0000ba400, 0x608ac, 0x202, 0x0, 0xd0058, 0xc000089af8)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/pushbutton.go:115 +0x6e
github.com/lxn/walk.defaultWndProc(0x608ac, 0x202, 0x0, 0xd0058, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/window.go:2159 +0xf0
syscall.Syscall(0x7ffcb9716b30, 0x2, 0x5f0490, 0xedb140, 0x0, 0x0, 0x0, 0x0)
        C:/go/src/runtime/syscall_windows.go:188 +0xfa
github.com/lxn/win.IsDialogMessage(0x5f0490, 0xedb140, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/user32.go:2834 +0x72
github.com/lxn/walk.(*FormBase).mainLoop(0xc0000ba000, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/mainloop_default.go:35 +0xe2
github.com/lxn/walk.(*FormBase).Run(0xc0000ba000, 0x0)
        C:/Users/dedal.qq/go/pkg/mod/github.com/lxn/[email protected]/form.go:375 +0xd5
main.(*UserInterface).run(0xc000004700, 0xc000004700, 0x0)
        C:/Users/dedal.qq/Procect/qclient/userInterface_windows.go:178 +0x69
main.main()
        C:/Users/dedal.qq/Procect/qclient/main.go:358 +0xed

This patch fixed my problem. I hope it's a right patch and will be useful =)

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

None yet

1 participant