问题
We have an application in which I need to click on a Pane. I tried to use the following code, which I use to click on a button, but it gave Unsupported pattern exception.
InvokePattern click_pattern = (InvokePattern)adjust_button.GetCurrentPattern(InvokePattern.Pattern);
click_pattern.Invoke();
Is there any other way to do it?
回答1:
Even though the object is clickable, depending on how the click is being handled internally, you may not necessarily be able to use the InvokePattern to perform a click. That appears to be the case here.
As an alternative, you can use some code to move the mouse cursor over the pane and issue a click using P/Invoke. Something like this:
private const UInt32 MOUSEEVENTF_LEFTDOWN = 0x0002;
private const UInt32 MOUSEEVENTF_LEFTUP = 0x0004;
[DllImport("user32.dll")]
private static extern void mouse_event(UInt32 dwFlags, UInt32 dx, UInt32 dy, UInt32 dwData, IntPtr dwExtraInfo);
...
...
AutomationElement paneToClick;
...
...
Cursor.Position = paneToClick.GetClickablePoint();
mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, new IntPtr());
mouse_event(MOUSEEVENTF_LEFTUP, 0, 0, 0, new IntPtr());
来源：https://stackoverflow.com/questions/12662426/how-to-click-on-a-pane-using-ui-automation-library