Shows a task dialog. 
Overload List
| Name | Description | |
|---|---|---|
| Show()()()() |  Shows the task dialog.   | |
| Show(String, String) |  Shows a task dialog with title, main instruction and a Close button.   | |
| Show(String, String, TaskDialogCommonButtons) |  Shows a task dialog with title, main instruction and common buttons.   | |
| Show(String, String, TaskDialogCommonButtons, TaskDialogResult) |  Shows a task dialog with title, main instruction, common buttons and default buttons.   |