Search DaniWeb - cascade

Cascade Menu (Tkinter) 15 Years Ago by ChargrO …to the stage where i want to implement a cascade menu into my window. i have differnt buttons…a check menu, i have succesfully created the cascade menu but am having trouble changing it into a…unused = Menu(self.menubar) self.menubar.add_cascade(label="Cascade Menu", menu=self.casmenu) self.top = Toplevel(… Cascade Menu need help 15 Years Ago by ChargrO … with some code) that could help me with learning about cascade menu's and changing them from a parent into a…, any help would be greatly appreciated. I am making the cascade menu in Tkinter btw. Also this is only meant to… Cascade/Delete 10 Years Ago by PulsarScript … "align-center") Hi all,how do i do cascade on delete and update on this to tables,i have… between this 2 tables.I tried in Lecturer table choose cascade on delete and update,not allowed,if do from module… Re: Cascade Menu need help 15 Years Ago by SgtMe Well I'm actually doing some tutorials on Youtube ATM, covering lots of stuff in Tkinter. I did a vid on cascade menus but I didn't cover parent to child. Anyway here is a link to my vids: [url]http://www.youtube.com/pyProgrammer96[/url] Re: Cascade Menu need help 15 Years Ago by ChargrO So ive got my cascade window down to a simple definition which pops down inside … Cascade Delete 12 Years Ago by manhthaodn Hi all, To perform the delete data from Product table by ProductID of Adventure Works database needs to use delete cascade. Has anyone done this yet? Can provide for me examples to do it? Thanks a lot! Re: Cascade Delete 12 Years Ago by BitBlt … alter your constraint to include the clause "ON DELETE CASCADE". Look in the SQL Help system, and search using… Cascade Thymeleaf DropdownList 5 Years Ago by Jelo … guys. And doing a system in spring. I want to cascade a dropdown list such that the selection on the first… real example I wrote showing the dangers of cascade 15 Years Ago by landonmkelsey …boys_like foreign key (girls_name) references girls_like_pets(girls_name) on delete cascade; alter table girls_like_pets add constraint girls_like foreign key (pets_name…) references pets_like_boys(pets_name) on delete cascade; select * from pets_like_boys; select * from boys_like_girls; select * from… Re: real example I wrote showing the dangers of cascade 15 Years Ago by debasisdas If one understands what is ON DELETE CASCADE and how/ where to use that and where not ,that piece of code would definitely not look surprising. There is no magic or tricks in that, that is pure logic. ON DELETE CASCADE is designed for that only. Re: real example I wrote showing the dangers of cascade 15 Years Ago by landonmkelsey again it is a working learning machine to illustrate the dangers of cascade. Re: real example I wrote showing the dangers of cascade 15 Years Ago by landonmkelsey … you want a question: "what are the dangers of cascade" problem in cascade drop down 14 Years Ago by cavalry Hello i've used the cascade drop down menu from post: [url]http://www.daniweb.com/forums/thread132703.html[/url] its work for English value only, but for Arabic it didn't work ? note :am using WAMP server+php+MySQL+html any idea C# Cascade .NET 1.1 14 Years Ago by JMC31337 … it.. but its autostart will wait another 10 seconds and cascade again.. a screenshot will be written to yur ROOT folder… ON DELETE CASCADE 10 Years Ago by J.C. SolvoTerra … set both relationship table's ImageID FK to On Delete Cascade, If I delete an entry in one of the relationship… Re: ON DELETE CASCADE 10 Years Ago by David_50 Delete cascade prevents orphans, not childless parents. If you delete the parent, … Re: Cascade Menu need help 15 Years Ago by pythonNerd159 i think you like need to put in... [CODE]self.steakVar = IntVar() self.mb.menu.add_command(label="Blah Blah Blah", command=self.pop up another window)[/CODE] below each option but obviously change the name of the thing Re: Cascade Menu need help 15 Years Ago by ChargrO How would i implement the below code into my def function?? [CODE] self.steakVar = IntVar() self.mb.menu.add_command(label="Blah Blah Blah", command=self.pop up another window) [/CODE] Re: Cascade Menu need help 15 Years Ago by pythonNerd159 yeah i think you do. put it in the same column as the other code. :):(:):(:):(:):(:):( Re: On Delete Cascade 17 Years Ago by Temmu depends on what you want to keep around. if the data is not important for future reference, the delete cascade to your heart's content. however, should data be valuable later, then those tables should not have rows automatically delete. that is a "business process" decision on your or your management's part. Re: On Delete Cascade 17 Years Ago by debasisdas That should be defined in the time of table / relationship creation . If you wnat to delete all the child records by deleting the parent record thenu need specify ON DELETE CASCADE. Other wise it does not allow you to delete parent record if there is any sort of dependent child records. Re: ON DELETE CASCADE in the same table? 11 Years Ago by Rahul47 You need to set ON DELETE CASCADE while defining foreign key in Child table. Re: real example I wrote showing the dangers of cascade 15 Years Ago by debasisdas Why you have posted this code here ? Do you have a question ? Re: real example I wrote showing the dangers of cascade 15 Years Ago by debasisdas If you know something and want to show your knowledge then please do not post those here as questions. Better post those as an article ,that will really help the new members. Re: real example I wrote showing the dangers of cascade 15 Years Ago by nav33n [QUOTE=debasisdas;1100865]If you know something and want to show your knowledge then please do not post those here as questions. Better post those as an article ,that will really help the new members.[/QUOTE] In my opinion, It doesn't matter if it is a forum thread or an article to share knowledge. Forum thread is read by many people, including … Re: real example I wrote showing the dangers of cascade 15 Years Ago by debasisdas Definitely there is no potential danger, but as time pass this thread will go down the memory line. Once it goes pas t the 2nd page i don't think anyone will ever open it unless someone runs a search with specific key words. So my idea was if it is an article (as the number is less) that would be easily accessible to others. As you say there is no … Re: real example I wrote showing the dangers of cascade 15 Years Ago by nav33n [QUOTE=debasisdas;1101191]Definitely there is no potential danger, but as time pass this thread will go down the memory line. Once it goes pas t the 2nd page i don't think anyone will ever open it unless someone runs a search with specific key words. [/QUOTE] Agree with that. But I guess, we don't have an option to publish articles here. … Re: real example I wrote showing the dangers of cascade 15 Years Ago by nav33n Hmm.. Interesting.. What I would have liked to know was the result.. Unfortunately, I don't have oracle installed anywhere [office/home], so I can't check these queries. What happens if we run the query ? Thanks. Re: real example I wrote showing the dangers of cascade 15 Years Ago by landonmkelsey actually amazing and definitely unforgetable.! The script shows the tables full until the delete command. and the result is empty tables. Sounds scary doesn't it. Can you imagine one little delete command corrupting tables at work? You'd be fired!:'( The script is set up to display the phenomenon. BTW Oracle for windows and … Re: real example I wrote showing the dangers of cascade 15 Years Ago by nav33n :) Yep, I know they are available for free. I just don't feel the need to install oracle. And yes, I tried your queries in mysql and I see what you are talking about. Thanks for the info :)