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authorfvogel <fvogelnew1@free.fr>2018-11-01 21:29:32 (GMT)
committerfvogel <fvogelnew1@free.fr>2018-11-01 21:29:32 (GMT)
commita3de6291935a349da5c1e61af13b19df5b1d31ee (patch)
tree1d953a3d65f4fd7fc05a106369e17da54af49664 /library/ttk
parenta51b941358414d42870614bacdbae8478fcd9f39 (diff)
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Fix [6b22d436aa]: Treeview ActivateHeading Binding Fails After Widget Deletion. Thanks to Brian O'Hagan for the report and the patch.
Diffstat (limited to 'library/ttk')
-rw-r--r--library/ttk/treeview.tcl2
1 files changed, 1 insertions, 1 deletions
diff --git a/library/ttk/treeview.tcl b/library/ttk/treeview.tcl
index 8772587..1ed87db 100644
--- a/library/ttk/treeview.tcl
+++ b/library/ttk/treeview.tcl
@@ -120,7 +120,7 @@ proc ttk::treeview::ActivateHeading {w heading} {
variable State
if {$w != $State(activeWidget) || $heading != $State(activeHeading)} {
- if {$State(activeHeading) != {}} {
+ if {[winfo exists $State(activeWidget)] && $State(activeHeading) != {}} {
$State(activeWidget) heading $State(activeHeading) state !active
}
if {$heading != {}} {