ttrack | A Time Tracking application | Database library
kandi X-RAY | ttrack Summary
kandi X-RAY | ttrack Summary
A Time Tracking application. Needs a Postgres Database.
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QUESTION
I have TKeyframe as a class, and Keyframes: TObjectlist
in a base class TTrack, but in descendants of TTrack, Keyframes contains descendants of TKeyframe with additional fields and appropriate typecasting.
TTrack has methods that call Keyframes.Move and Keyframes.Delete methods, that generally seem to be working properly with the descendants of TKeyframe. Deleting a keyframe that isn't at the end of the list appears to be working properly except for a specific situation, when one of the additional fields in the next Keyframe is getting set to a NaN by some subsequent operation that I haven't been able to isolate.
The source of TList Delete uses System.Move to move what are just pointers for a class, so it looks safe to me. So is it safe to use with descendants of T or not? TList Move casts to T for the item being moved, so looks dodgier, but I haven't had any problems with it so far.
...ANSWER
Answered 2021-Mar-23 at 07:27Yes, there is nothing in TObjectList
that affects polymorphism and System.Move
just moves memory.
To find out what code sets some field to an unexpected value I suggest to use a data breakpoint.
QUESTION
I am developing a Xamarin.Android app whose main page is a carousel page with 3 children (3 images actually which exist on the disk).
Here is the XAML code of the page:
...ANSWER
Answered 2020-Sep-29 at 08:49I will definitively try to replace the deprecated CarouselPage by the CarouselView, in order to see if the exception 'Value cannot be null. Parameter key' disappears, because it is really weird it is raised sometimes (I 'd say 1% of time) for no reason. I will let you know and post my code afterwards so that people who encounter this exception have a solution.
Thanks
QUESTION
I have a task of printing a set of addresses on a postcard on both sides. On the front the owner address will print centered, and on the back the parcel number, address, along with other data.
Four postcards are per sheet of paper. I know how to do one sided printing for postcards, my challenge is now that I have to do both sides. So I think that first, I need to align the data so what prints on the back, corresponds to what prints on the front.
I think that in order to be able to print both sides using SSRS I need to change how the records are retrieved.
Each record has 6 columns. I need to print 4 addresses per page (both sides when printing)
My data as it looks currently:
...ANSWER
Answered 2019-Dec-10 at 00:30You can pivot them over a calculated rownumber.
Ranked by division by 4 & assigned by modulus 4.
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Install ttrack
To start developing you have to run the app in dev mode. Prefer to do this locally which will be more efficient. The webpack dev server watches the sources and serves the built JS and CSS with hot reloading enabled. The ttrack server serves the main index.html and the rest API. It requests JS and CSS from the webpack dev server.
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