CODEWITHSUNDEEP
tcltk-toolkit
StarCoder17
StarCoder17

Reputation: 175

How to set a variable while switching tabs in ttk notebook

I wanted to set a variable value based on tab switching in tkk:notebook. Is there any options that can help me to achieve this?

I wanted to keep flag as 0 for default tab, and when user switches another tab make it flag as 1.

Here is my code, but didn't helped me:

ttk::notebook .top.d -padding 5
ttk::frame .top.d.f1;
ttk::frame .top.d.f2;
.top.d add .top.d.f2 -text "Tab A" -padding 5
.top.d add .top.d.f1 -text "TAB B" -padding 5
.top.d select .top.d.f1
ttk::notebook::enableTraversal .top.d
if {.top.d select .top.d.f2 } {
    set flag 2
}

Thanks

Upvotes: 1

Views: 326

Answers (1)

Jerry
Jerry

Reputation: 71558

I feel like you are trying to get the index of the current tab, and if that's so, then you can use:

.top.d index current

To get the index of the tab at any point in time (index is 0 based).

But if you really want to change the value of a variable upon tab change, you can use the virtual event <<NotebookTabChanged>>:

bind .top.d <<NotebookTabChanged>> {
    if {[.top.d select] == ".top.d.f2"} {set flag 2}
}

Everything above is on the manual.

Upvotes: 2

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