Approachs to Find AutomationElement by Tree Structure

 Approach 1：

AutomationElement item1 = TreeWalker.ContentViewWalker.GetFirstChild(item); 

item1 = TreeWalker.ContentViewWalker.GetFirstChild(item1);

item1 = TreeWalker.ContentViewWalker.GetNextSibling(item1);

AutomationElement autoElement1 = FindChildElement("textBoxPath", item);

 

Note:

// Summary:

 //     Represents a predefined System.Windows.Automation.TreeWalker containing a

 //     view of elements in the tree that are marked as content controls.

 ContentViewWalker;

 //

 // Summary:

 //     Represents a predefined System.Windows.Automation.TreeWalker containing a

 //     view of elements in the tree that are marked as controls.

ControlViewWalker;

  //

// Summary:

//     Represents a predefined System.Windows.Automation.TreeWalker containing a

//     view of all the elements in the tree.

RawViewWalker; 

 

Approach 2: 

Condition propCondition = new PropertyCondition( AutomationElement.AutomationIdProperty, controlIDorName, PropertyConditionFlags.IgnoreCase);

 // Find the element.

rootElement.FindFirst(TreeScope.Descendants, propCondition);