Bindingsource not updating
Gets a value indicating whether the caller must call an invoke method when making method calls to the control because the caller is on a different thread than the one the control was created on.(Inherited from Control.) This API supports the product infrastructure and is not intended to be used directly from your code.Gets a value indicating whether the form can use all windows and user input events without restriction.The tree nodes in this collection are referred to as the root tree nodes.Any tree node that is subsequently added to a root tree node is referred to as a child node.The same problem will happen with Password Box, so it’s best just to handle both situations and encapsulate this in a reusable method: method in the start of the app bar item control click event handler so that it will update the binding source before the rest of the code runs!You can find this problem fixed on some toolkits and frameworks, like Caliburn.
This method should not be overridden.(Overrides Component control.
We decided to make the restrictions “roles-based” – that is “managers can click this button, users can see it, but to guests it is invisible.” We wanted to build an architecture that would allow us to add forms and controls to the application without deciding in advance which roles we would use, and without having to modify the forms or controls to meet the needs of the security architecture any more than absolutely necessary.
The ideal security architecture would be independent of the participating forms and controls. I do not explain how to create forms, or how event handling works, nor do I explain how to interact with a SQL database.
The user can expand the Tree Node by clicking the plus-sign ( ) button, if one is displayed next to the Tree Node, or you can expand the Tree Node by calling the Tree Node property in the event handler when you are recursively updating the child nodes so that the user does not have to expand and check each one individually.
To prevent the event from being raised multiple times, add logic to your event handler that only executes your recursive code if the property to true changes the appearance of the tree node labels as the mouse pointer passes over them.