///--------------------------------------------------------------------
/// <summary>
/// Finds all automation elements that satisfy 
/// the specified condition(s).
/// </summary>
/// <param name="targetApp">
/// The automation element from which to start searching.
/// </param>
/// <returns>
/// A collection of automation elements satisfying 
/// the specified condition(s).
/// </returns>
///--------------------------------------------------------------------
private AutomationElementCollection FindAutomationElement(
    AutomationElement targetApp)
{
    if (targetApp == null)
    {
        throw new ArgumentException("Root element cannot be null.");
    }

    PropertyCondition conditionSupportsTablePattern =
        new PropertyCondition(
        AutomationElement.IsTablePatternAvailableProperty, true);

    PropertyCondition conditionIndeterminateTraversal =
        new PropertyCondition(
        TablePattern.RowOrColumnMajorProperty,
        RowOrColumnMajor.Indeterminate);

    PropertyCondition conditionRowColumnTraversal =
        new PropertyCondition(
        TablePattern.RowOrColumnMajorProperty,
        RowOrColumnMajor.ColumnMajor);

    AndCondition conditionTable =
        new AndCondition(
        conditionSupportsTablePattern,
        new OrCondition(
        conditionIndeterminateTraversal,
        conditionRowColumnTraversal));

    return targetApp.FindAll(
        TreeScope.Descendants, conditionTable);
}