TextBox在Value Pattern中抛出Unsupported Pattern

Question

有没有人知道如何在运行时使用UI Automation和.Net启用TextBox后在TextBox中设置值？

有关详细信息：最初在加载应用程序时，TextBox已禁用。使用Automation切换复选框后，TextBox已启用。但是使用自动化它是无法访问的。 我尝试了以下方式：

PropertyCondition parentProcCond = new PropertyCondition(AutomationElement.ProcessIdProperty, processes[0].Id);
Condition chkCondition = new AndCondition(
                            new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                            new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.CheckBox),
                            new PropertyCondition(AutomationElement.NameProperty, chkName));
//Find Elements
var parentElement = AutomationElement.RootElement.FindFirst(TreeScope.Children, parentProcCond);

var chkUseMyAccountElement = parentElement.FindFirst(TreeScope.Descendants, chkCondition);
TogglePattern pattern = chkUseMyAccountElement.GetCurrentPattern(TogglePattern.Pattern) as TogglePattern;
ToggleState state = pattern.Current.ToggleState;
if (state == ToggleState.On)
{
    pattern.Toggle();
}

Condition txtDomainCondition = new AndCondition(
                           new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Text),
                           new PropertyCondition(AutomationElement.NameProperty, txtDomain)
                           );

var txtConditionElement = parentElement.FindFirst(TreeScope.Descendants, txtDomainCondition);
ValuePattern valuetxtDomain = txtConditionElement.GetCurrentPattern(ValuePattern.Pattern) as ValuePattern;
valuetxtDomain.SetValue("US");

它在ValuePattern Line中抛出一个不支持的模式。

Answer 1

我找到了答案。

而不是将Control Type作为Text，将Control Type修改为Edit。它正在发挥作用。

 Condition txtDomainCondition = new AndCondition(
                       new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit),
                       new PropertyCondition(AutomationElement.NameProperty, txtDomain)
                       );