Question

我有一个窗口的句柄，我想要做的就是点击它的名为“加载设置”的按钮。我有两个问题。

我的第一个问题是当我在某个InvokePattern上调用Invoke时，它会使窗口聚焦，这对我的应用程序来说是不合需要的。

我的第二个问题是可见的，并记录在以下代码末尾的注释中：

AutomationElement aeBot = AutomationElement.FromHandle(mbotSettingList.ElementAt(i).getWindowHandle());
AutomationElement aeButtonLoadSettings = aeBot.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, "Load Settings"));
InvokePattern ipClickLoadSettings = (InvokePattern)aeButtonLoadSettings.GetCurrentPattern(InvokePattern.Pattern);
Thread invokeLoadSettingsThread = new Thread(ipClickLoadSettings.Invoke);
InvokePattern ipClickOpen = null;
AutomationElement aeOpenDialogEdit = null;
AutomationElement aeButtonOpen = null;
AutomationElementCollection aeDialogs = null;
AutomationElement aeOpenDialog = null;
ValuePattern vpOpenDialogEdit = null;

//Using a thread to invoke the Load Settings button click because as a result of clicking Load Settings a dialog is opened and invoke doesnt return for nealy 10 seconds
invokeLoadSettingsThread.Start();
//We probably wont join() this thread because it goes on for far longer than we expect to be in this function

//Get a collection of the Dialog windows that are direct children of the main window we have a handle to
aeDialogs = aeBot.FindAll(TreeScope.Children, new PropertyCondition(AutomationElement.ClassNameProperty, "#32770"));

while (aeDialogs.Count == 0)
{
    //This while loop is to continue to check for the Open file dialog as it may take a little time to open
    aeDialogs = aeBot.FindAll(TreeScope.Children, new PropertyCondition(AutomationElement.ClassNameProperty, "#32770"));
    Thread.Sleep(250);
}

for (int j = 0; j < aeDialogs.Count; j++)
{
    //There is usually only 1 child dialog window, but just make sure we have the correct one
    if (aeDialogs[j].Current.Name == "Open")
    {
        Debug.WriteLine("Found open dialog!");
        aeOpenDialog = aeDialogs[j];
        break;
    }
}

//Inside the Open window, the first Edit window is the one where the file name/path should be entered
aeOpenDialogEdit = aeOpenDialog.FindFirst(TreeScope.Descendants, new PropertyCondition(AutomationElement.ClassNameProperty, "Edit"));

//Set the value of the file name/path to the string variable "loadSettingsString"
vpOpenDialogEdit = (ValuePattern)aeOpenDialogEdit.GetCurrentPattern(ValuePattern.Pattern); 
vpOpenDialogEdit.SetValue(loadSettingsString);

//******************************************PROBLEM BEGINING BELOW******************************************

//Using multiple methods, we can successfully get a successful AutomationElement for the "Open" button in the Open file dialog
aeButtonOpen = aeOpenDialog.FindFirst(TreeScope.Subtree, new PropertyCondition(AutomationElement.NameProperty, "Open"));

//aeButtonOpen = aeOpenDialog.FindFirst(TreeScope.Subtree, new PropertyCondition(AutomationElement.NameProperty, "Cancel"));
//Something to consider: If we assigned aeButtonOpen to the AutomationElement we find be looking for "Cancel" rather than "Open"

Debug.WriteLine(aeButtonOpen.Current.Name + " button found!");
//Prints "Open button found!"
//If aeButtonOpen were assigned to "Cancel", this would print "Cancel button found!"

ipClickOpen = (InvokePattern)aeButtonOpen.GetCurrentPattern(InvokePattern.Pattern);
//GetCurrentPattern has returned null
//If aeButtonOpen were assigned to "Cancel", this would NOT be null

ipClickOpen.Invoke();
//Invoke() on a null results in "Unsupported Pattern" exception
//If aeButtonOpen were assigned to "Cancel", this would work and the Open file dialog would then be exited just as if cancel were clicked

Answer 1

使用UIAVerify查看应用程序的UIA树。查看您的代码，我怀疑您没有检索到您认为自己的元素。如果'Open'元素是一个按钮，它应该支持Invoke模式。

或者，您打开一个对话框，然后立即搜索该对话框的子元素。您可能遇到了可靠性问题，其中仍在为该对话框创建UIA树。要检查这一点，请添加一个睡眠一秒钟，看看是否能解决您的问题。如果是这种情况，请查看UIA结构更改事件。这些事件将让您将UIA测试代码与UIA树中的更改同步。

UIAutomation单击按钮而不使窗口成为焦点，GetCurrentPattern（）返回不支持的模式

1 个答案: