the validation tooltip is an implicit feature in silverlight 5. Resources" node in your "main page" usercontrol and you will have the expected behavior.When the first time the item is showed the validation discover an incorrect value for some property as I can see through breakpoints, but the error message does not appear on the screen. Drumm" Is there a way to prevent the user from leaving a tab on a Tab Control until all the controls on that tab have finished validating? Ideally, I think the Dennis, I expect that while you are executing code in Leave event your other page cannot receive focus (even if can, there will be no interaction possible if you don't call App. Hence, if your validation in Leave fails you can always go back to original page and select / focus corresponding control. The problem I am experiencing is when a control fails its validating event and the user clicks another tab things get messy. The problem I am experiencing is when a control fails its validating event and the user clicks another tab things get messy. Drumm" all the controls on that tab have finished validating?– Peter Feb 7 '16 at | show more comments 相关推荐：c# - How to change Tab from Tab Control in WPF without violating the MVVM pattern the button below executes a method via ICommand interface / Binding.The called method generates text which is intended to be displayed in the second tab.Selected Tab This property returns or sets the currently selected tab page.
The validation Tool Tip remains: I have produced a VS solution containing a Silverlight application that demonstrates the issue. Has anyone had similar problems or even a solution for that issue?The “Spotlight on Controls” series focuses on a single Win Forms control in Primal Forms 2011 , details the important Properties, Methods, and Events of the control and demonstrates how to utilize the control.Most of the information about the controls is still applicable to previous versions of Primal Forms. Tab Page]: Example of Tab Pages used to display a set of controls: In the designer, you can drag and drop controls directly in the Tab Page as you would within the form.in order to determine whether to save and close the form .Now, suppose I have a control in tab 1 that fails validation, but the currently visible tab is tab 2.