Addressing Objects in WPF Applications

About Object Names in the Object Browser

Addressing WPF Objects Using Name Mapping and Aliases

Addressing WPF Objects Without Name Mapping

About Containers in the WPF Object Hierarchy

Combining Mapped and Unmapped Object Names

Further Reading

You can explore the object structure of the tested application in the Object Browser. Here is a sample view of the WPF application hierarchy displayed in the Object Browser:

Click the image to enlarge it.

Here, the Process("Orders") branch of the Sys object corresponds to your tested WPF application and the other objects correspond to the application’s windows, controls and objects.

To refer to an individual object in a tested WPF application, select the needed object in the Object Browser or Object Spy. These tools display the selected object’s name above the member list. From the right-click menu, you can copy this name to the clipboard and then insert it into your test.

Click the image to enlarge it.

You may notice that this name differs from what you see in the object tree on the left of the Object Browser. This is because the name displayed at the top of the panel uses object aliases, if they are defined, whereas the object tree uses the naming syntax that includes identification properties. The differences between the two object naming syntaxes are explained in the Addressing WPF Objects Using Name Mapping and Aliases and Addressing WPF Objects Without Name Mapping sections below.

You can also learn the object names in different syntaxes by looking at the following object properties:

• MappedName - the object’s fully-qualified alias (including aliases of all parent objects). This name is used for the object by default in your tests. Note that if the selected object is not in Name Mapping, this property is empty.

• Name - the object name that includes its identification properties. This is the same name you see in the Object Browser’s object tree. For an explanation of this syntax, see below.

• FullName - the object’s fully-qualified name in the syntax that includes the identification properties. This name consists of the object’s Name property value and the names of all of its parent objects. See below.

By default, TestComplete uses the object names from Name Mapping (the object repository) to refer to objects in WPF applications under test. These names are called aliases. When you record a test, TestComplete automatically adds the recorded objects to Name Mapping and generates aliases for them.

You can see the available object aliases and add new aliases in the Name Mapping editor.

Here, Mapped Objects and Aliases display the hierarchy of mapped objects and their aliases, respectively. The fully-qualified alias that can be used to refer to an object is displayed in the top right part of the Name Mapping editor (see the image above). It starts with Aliases and includes aliases of all of the object’s parent objects separated by dots (in VBScript, JScript, Python and DelphiScript projects) or square brackets (in C++Script and C#Script projects). For example, in the image above you can see that you can refer to the OrdersView object using the following name:

You can copy object aliases from the Name Mapping editor to the clipboard and use them when manually adding test operations with the tested application’s objects.

The following example shows a sample item selection operation on the OrdersView control specified by an alias:

Note that the fully-qualified mapped name for this object is as follows:

Since the MainForm and gridMain objects are of no interest for our test, we exclude them from the path to the OrdersView object in the Alias tree, so the object hierarchy becomes shorter. Using aliases lets you make your scripts shorter and more readable.

For more information about using Name Mapping and aliases, see About Name Mapping and Access Objects by Aliases.

Your tests can work not only with applications and objects added to Name Mapping, but also with any other running applications, their windows and controls. These objects can be addressed using syntax that directly includes identification property values:

To learn the exact syntax for referring to a particular object, use the Object Browser - the object tree and the FullName property of objects always use this naming syntax. See the About Object Names in the Object Browser section above.

Let’s have a closer look at this notation and its components.

• The notation starts with Sys object that represents the operating system.

• The next object, Process("Orders"), represents the .NET application with the file name Orders.exe.

• WPFObject("HwndSource: MainForm") is the containing object that hosts WPF content in a window.

• Further objects represent WPF content - windows and controls - in your WPF application.

  The default and most commonly used syntax for these objects is as follows:

  WPFObject(NativeName)

  Here, NativeName is the object name defined by the application developers; this name is specified by the object’s WPFControlName property.

  Another possible syntax for WPF objects is:

  WPFObject(NETClassName, Caption, [Index])

  Instead of the object’s native name, it uses its .NET class name (specified by the ClrClassName property value), text and (optionally) index among sibling objects with the same class and text. This syntax is and should be used in the following cases:

  • TestComplete cannot determine the object name that is specified in the application code.

  • There are several objects with the same name.

  For more information about WPF object addressing syntax and its parameters, see the description of the WPFObject notation.

For examples of this syntax applied to objects in your tested WPF application, examine your application in the Object Browser. You can also copy this syntax from the Object Browser and paste it to your test to avoid having to type it manually.

Remarks

Applications that include WPF applications often include container objects that are used to layout content, but do not affect the way the user interacts with the application. Examples of such containers used in WPF applications are the Panel and Border objects. The application object hierarchy represented in TestComplete (for example, the one displayed in the Object Browser) reflects the actual object hierarchy in the application and includes all the objects, including intermediate layout containers. However, if your tested WPF application has a complex user interface with many containers, its object hierarchy can be quite complex and deeply nested, which makes tests less readable.

To improve the readability of WPF application tests, TestComplete provides the Simplified WPF object tree project property. If this option is enabled, TestComplete omits the following layout container objects from the application object hierarchy available to your tests:

• AdornerLevel
• ContentPresenter
• Decorator
• FrameworkContentElement
• GridViewRowPresenterBase
• Panel
• Descendant classes of the abovementioned base classes, except for Hyperlink

This reduces the number of nesting levels of tested objects corresponding to interactive controls in WPF applications, shortens the syntax used to address these objects in tests and thus improves the test readability.

The differences in the WPF object hierarchy provided by the Simplified WPF object tree option are illustrated in the following images.

WPF object hierarchy when 'Simplified WPF object tree' is disabled

WPF object hierarchy when 'Simplified WPF object tree' is enabled

For example, when the Simplified WPF object tree option is disabled, a fully-qualified name of a button object in a WPF application is as follows (layout containers are highlighted in blue):

Sys.Process("Orders").WPFObject("HwndSource: OrderForm").WPFObject("OrderForm").WPFObject("gridMain").WPFObject("gridButtons").WPFObject("ButtonOK")

With the Simplified WPF object tree option enabled, the object hierarchy is reduced and looks as follows:

Sys.Process("Orders").WPFObject("HwndSource: OrderForm").WPFObject("OrderForm").WPFObject("ButtonOK")

To view or modify the Simplified WPF object tree option, do the following:

• Double-click your project in the Project Explorer.

• In the project editor, switch to the Properties tabbed page.

• In the tree on the left, select Open Applications | WPF.

• Check or uncheck the Simplified WPF object tree option.

• Select File | Save All from main menu to save the changed made.

Since the Simplified WPF object tree setting affects the object hierarchy of WPF applications, as it is available to the test engine, tests created with this setting enabled may not play back correctly when this setting is disabled, and vice versa.

You can combine aliases specified in Name Mapping and the WPFObject notation when referencing an object hierarchy in tests. For example, you can use aliases for parent objects and the WPFObject notation for child objects:

However, keep in mind that aliases must always precede the WPFObject notation in the object hierarchy. Aliases cannot be used after the WPFObject notation within the same statement. That is, the following statement is invalid:

The following topics explain how to refer to objects in .WPF applications while performing some common operations on them: