Wpf listview binding observablecollection not updating


18-Sep-2017 21:14

They may also help stop a layout pass from rippling through an entire visual tree.And always set specific widths on columns in a grid (be it a List View Grid View or any third-party control), because these tend to be very expensive, especially with larger data sets.So all we need to do in xaml file is to specify binding member to each column.We can achieve it by “Display Member Binding” attribute and “Binding” markup extension. I have also frequently taken to creating static classes that contain nothing but highly reusable resources (think static framework classes like the Brushes class) because it’s easier to guarantee that objects are only being created once, and hopefully at app startup instead of triggered by the user interacting with the application and forcing a lazy load at an undesirable time.Not necessary the healthiest design, but the performance is quite a bit better.An Observable Collection is a dynamic collection of objects of a given type.Object can be added, removed or be updated with an automatic notification of actions.

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Finally, there are old UI/Win Forms problems (this, this, and this) that never really went away—they’re just less likely to happen.

A common, sensible, and logical pattern is to keep usages of elements as close to where you use them as possible. Resources, or break up their themes into multiple Resource Dictionaries for clarity and separation.

Although this is arguably good programming practice, it also tends to be insanely slow.

This advice is practically impossible to follow, but do your best.

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There is a huge cost in constructing Resource Dictionaries, and depending on where you place them, you are probably constructing many more objects than you realize.

Every time a binding error occurs, your app hangs for just a split second as it writes out errors to the trace log.



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