Silverlight ComboboxControl : How to get Displayed Text value

Question

Some code from the Silverlight MVVM application :

class Animal
{public string Name; public string Something;}

public AnimalView()
{
Animals = new ObservableCollection<Animal>(){new Animal("Dog", "hawhaw"), new Animal("Cat", "miaw")};
} 

in the Xaml I have two combobox :

<ComboBox Height="23"
HorizontalAlignment="Left"
Margin="104,15,0,0"
Name="comboBoxAnimalAdi"
ItemsSource="{Binding Animals,Mode=TwoWay}"
DisplayMemberPath="Something"
VerticalAlignment="Top"
Width="120" />
<ComboBox Height="23"
HorizontalAlignment="Left"
Margin="104,50,0,0"
Name="comboBoxAnimal"
ItemsSource="{Binding Animals,Mode=TwoWay}"
DisplayMemberPath="Name"
VerticalAlignment="Top"
Width="120" /> 

in the code script, after the action to select an item, i wana check if the displayed text in the combobox is correct (if the developer have made an error on the DisplayMemberPath property. the SilverlightComboBox() gives access to only two properties :
t.SelectedItem --> the ToString() of the Binded object;
t.SelectedIndex;

  How to assert the displayed text in the combobox instead of accessing the binded object.

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Issamo san

Answer 1

Hi Issamo,

I would like to know which version of Silverlight did you use in this scenario? The latest version of Silverlight is not fully support Coded UI Test.

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Tony Xiao [MSFT]
MSDN Community Support | Feedback to us

Answer 2

My silverlight version is 4

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Issamo san

Answer 3

Make use of UITestControlCOllection someexample=combobox.getchildern();

string somevalues=someexample[1].Name;

like this try to use these coding ,hope my hint will get u answer.

Answer 4

Hi Issamo,

As far as I know, the Coded UI Test will recognize the displayed text regardless where it comes from. I would suggest that you could try to get all children controls of this combox and see if there any child control hold these text.

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Tony Xiao [MSFT]
MSDN Community Support | Feedback to us

Answer 5

Hello Tony,

The problem is not about checking a child and selecting it, its after the selection, I want to check that the displayed text in the combobox is the desired on.

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Issamo san

Answer 6

Hi Issamo,

I am trying to involve someone familiar with this topic to further look at this issue. There might be some time delay. Appreciate your patience.

Thank you for your understanding and support.

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Tony Xiao [MSFT]
MSDN Community Support | Feedback to us

Answer 7

I'm not sure why you don't want to access the binded object. Well, if you want to access the displayed text directly, maybe the following steps are helpful:

1. call CombBox.GetTemplateChild http://msdn.microsoft.com/en-us/library/system.windows.controls.control.gettemplatechild(v=vs.95).aspx
2. In the template, it should be ContentPresenter "ContentSite" who is displaying the text. If not, you might use silverlightspy or some other tools to verify it.
3. Pass the "ContentSite" to GetTemplateChild, and get the instance. Then, get the text.

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Regards,
Jacky Wu
Microsoft Online Community Support