c# - 如何使用 Winappdriver 访问 GridView 单元格？

Question

我正在尝试从 中的 GridView 中获取单元格值WPF 项目与 winappdriver .
我在这条线上遇到了一个问题:

 string name = row.FindElementByName("Name1").Text;

An element could not be located on the page using the given searchparameters.

您能否检查我的以下代码:

 <Grid>
        <ListView Margin="10" Name="lvUsers" AutomationProperties.AutomationId="lvUsers">
                <ListView.View>
                <GridView x:Name="ListViewItem"  AutomationProperties.AutomationId="ListViewItem">
                        <GridViewColumn x:Name="Name1" AutomationProperties.Name="Name1" AutomationProperties.AutomationId="Name1" Header="Name" Width="120" DisplayMemberBinding="{Binding Name}" />
                        <GridViewColumn Header="Age" Width="50" DisplayMemberBinding="{Binding Age}" />
                        <GridViewColumn Header="Mail" Width="150" DisplayMemberBinding="{Binding Mail}" />
                    </GridView>
                </ListView.View>
            </ListView>
  </Grid>

 var listBox = session.FindElementByAccessibilityId("lvUsers");
            var comboBoxItems = listBox.FindElementsByClassName("ListViewItem");
             foreach (var row  in  comboBoxItems)
             {
                string name = row.FindElementByName("Name1").Text;
                if (name == "John Doe")
                {                     
                   findName = true;
                   break;
                }
         }
        Assert.AreEqual(findName, true);

Answer 1

您显然选择了错误的工具来完成您的任务。
自动化旨在处理 UI 元素，但您需要为任务提供数据。
看看你的 DataGrid 的可视化树是什么样子的:

DataGrid 继承自 ItemsControl。在他的可视化中，只有行。没有专栏。
可以从特定的单元格中提取数据，但非常困难且没有意义。
您需要创建一个普通的数据源。
首先，采用 INotifyPropertyChanged 的​​某种实现。
例如，这个:

/// <summary>Base class implementing INotifyPropertyChanged.</summary>
public abstract class BaseINPC : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler PropertyChanged;

    /// <summary>Called AFTER the property value changes.</summary>
    /// <param name="propertyName">The name of the property.
    /// In the property setter, the parameter is not specified. </param>
    public void RaisePropertyChanged([CallerMemberName] string propertyName = "")
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));

    /// <summary> A virtual method that defines changes in the value field of a property value. </summary>
    /// <typeparam name = "T"> Type of property value. </typeparam>
    /// <param name = "oldValue"> Reference to the field with the old value. </param>
    /// <param name = "newValue"> New value. </param>
    /// <param name = "propertyName"> The name of the property. If <see cref = "string.IsNullOrWhiteSpace (string)" />,
    /// then ArgumentNullException. </param> 
    /// <remarks> If the base method is not called in the derived class,
    /// then the value will not change.</remarks>
    protected virtual void Set<T>(ref T oldValue, T newValue, [CallerMemberName] string propertyName = "")
    {
        if (string.IsNullOrWhiteSpace(propertyName))
            throw new ArgumentNullException(nameof(propertyName));

        if ((oldValue == null && newValue != null) || (oldValue != null && !oldValue.Equals(newValue)))
            OnValueChange(ref oldValue, newValue, propertyName);
    }

    /// <summary> A virtual method that changes the value of a property. </summary>
    /// <typeparam name = "T"> Type of property value. </typeparam>
    /// <param name = "oldValue"> Reference to the property value field. </param>
    /// <param name = "newValue"> New value. </param>
    /// <param name = "propertyName"> The name of the property. </param>
    /// <remarks> If the base method is not called in the derived class,
    /// then the value will not change.</remarks>
    protected virtual void OnValueChange<T>(ref T oldValue, T newValue, string propertyName)
    {
        oldValue = newValue;
        RaisePropertyChanged(propertyName);
    }

}

在此基础上，您可以为集合 edements 创建一个类型:

public class PersonVM : BaseINPC
{
    private string _name;
    private uint _age;
    private string _mail;

    public string Name { get => _name; set => Set(ref _name, value); }
    public uint Age { get => _age; set => Set(ref _age, value); }
    public string Mail { get => _mail; set => Set(ref _mail, value); }
}

和带有集合的 ViewModel:

public class ViewModel
{
    public ObservableCollection<PersonVM> People { get; } 
        = new ObservableCollection<PersonVM>()
        {
            new PersonVM(){Name="Peter", Age=20, Mail="Peter@mail.com"},
            new PersonVM(){Name="Alex", Age=30, Mail="Alex@mail.com"},
            new PersonVM(){Name="Nina", Age=25, Mail="Nina@mail.com"},
        };
}

将其连接到 DataContext 窗口:

<Window.DataContext>
    <local:ViewModel/>
</Window.DataContext>
<Grid>
    <ListView Margin="10" ItemsSource="{Binding People}">
        <ListView.View>
            <GridView x:Name="ListViewItem" >
                <GridViewColumn x:Name="Name1" Header="Name" Width="120" DisplayMemberBinding="{Binding Name}" />
                <GridViewColumn Header="Age" Width="50" DisplayMemberBinding="{Binding Age}" />
                <GridViewColumn Header="Mail" Width="150" DisplayMemberBinding="{Binding Mail}" />
            </GridView>
        </ListView.View>
    </ListView>
</Grid>

现在，您的任务简化为在 People 集合中查找所需的项目。