用UIAutomation识别UI元素(三)

有时候我们会要捕捉一组有相同属性的控件就要用到AutomationElementCollection 类。

 

AutomationElementCollection 类

表示 AutomationElement 对象的集合

比如我们要捕捉Calculator上的所有Button.

using System.Windows.Automation;....//找到Desktop   AutomationElement Desktop = AutomationElement.RootElement;   //找到Calculator窗口   AutomationElement CalcWindows = Desktop.FindFirst(TreeScope.Children,     new AndCondition(         new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Window),        new PropertyCondition(AutomationElement.ClassNameProperty, "SciCalc")        )        );//找到全部在Calculator子自动化树下的Button控件AutomationElementCollection Buttons = CalcWindows.FindAll(TreeScope.Children,    new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Button)    ); 

AutomationElementCollection主要是通过AutomationElement.FindAll方法获得，

AutomationElement.FindAll的语法和AutomationElement.FindFirst一样.

public AutomationElementCollection FindAll(TreeScope scope,Condition condition)