Hi, I want to create a WPF application that uses Measurement Studio to display the points of the measurements on the graph. We have already implemented a HAL that reports the data to the UI (after doing some manipulations), using the DAQmx. I saw in your examples that you display only points of the last second, but my users can choose to see data of one hour, and if I keep in memory data of points for the last hour I get out of memory (the data object become very big). How can I show in the graph data of the last X minutes / hours without keeping all the data in memory?

Sorry, that was my fault (the years were faulty in my local test as well, I just hadn't noticed). Luckily, this makes the workaround even simpler: the CustomXAxis implementation can change to just object ISourceDataProvider.TryGetSourceDataStart() { return default(DateTime); }. Also, for future reference: for property changes in WPF, you need either a dependency property or INotifyPropertyChanged, but not both (i.e. you didn't need OnStartTimePropertyChanged in CustomXAxis).

Measurement Studio for .NET Languages

Binding the graph to data object causing out of memory

Solved!

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That fixed the problem.

Thanks a lot!

Message 11 of 12

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Just wanted to let you know this issue was fixed in the Measurement Studio 2019 release.

~ Paul H

Message 12 of 12

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Measurement Studio for .NET Languages

Binding the graph to data object causing out of memory

Re: Binding the graph to data object causing out of memory

Re: Binding the graph to data object causing out of memory