Wpf textblock text binding not updating Free sex chat local poeples free trial


17-Dec-2020 10:13

Note The Update Source Trigger property deals with source updates and therefore is only relevant for Two Way or One Way To Source bindings.

For Two Way and One Way To Source bindings to work, the source object needs to provide property change notifications.

However, since WPF is pretty good at controlling this for you, the default value should suffice for most cases, where you will get the best mix of a constantly updated UI and good performance.The other options are Property Changed, Lost Focus and Explicit.The first two has already been described, while the last one simply means that the update has to be pushed manually through to occur, using a call to Update Source on the Binding.For that reason, I have added a button next to the Text Box, which will update the source value on demand.

In the Code-behind, you will find the Click handler, where we use a couple of lines of code to get the binding from the destination control and then call the Update Source() method on it.

As you can see, each of the three textboxes now uses a different Update Source Trigger.



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