![]() ![]() First, just like the Windows Forms example, where the code leveraged some of the WPF classes outside the context of the interop form, this WPF form is going to leverage the same FolderBrowseDialog that was used in the preceding Windows form. This button will illustrate two concepts. Next, switch to Design view and add a button to the upper-left corner of the display. You'll want to change the title attribute of the window in XAML to reflect the new form title, Pro VB WPF Interop. This declaration in Visual Studio imports a few namespaces, as discussed in Chapter 17. In that XAML file you'll see the "Window" declaration. xaml file that's created with this template. Having created a new user control and added the references, open the MainWindow. After adding these three references, close the Project Settings window and recompile the project. Finally, add a reference to the WinFormInteropCtrl project. NET assemblies and WindowsFormsIntegration. From the Project Settings window, select the References tab. The next step is to update your WPF project with the appropriate references. This demonstration focuses on display characteristics, so there is no need to edit the default code-behind or provide an action for the click event of the button.Īfter you have created a new UserControll, build the project so that the WinFormInteropCtrl has been compiled and then close this window. Resize the grid to fit within the display area of your user control. This control represents a complex grid but it is not meant to be one. ![]() The first column will wind up holding lengthy string values representing the available images, so ensure you add a decent default length to this column. Simply select Add Column for each of the two columns, calling the first File Path and the second Size. You can do this using the context menu available in the upper-right corner of the control's display. Next, manually add the two columns shown in the grid through Visual Studio 2010. For the purposes of this demonstration, the Button control is static it is there to demonstrate a formatting issue. Go to the designer for this new user control and add a Button control and a DataGridview control to the design surface, as shown in Figure 16-4.įigure 16-4 shows one way to arrange these controls. At this point you will have access to a new control called UserControll. Again, Visual Studio will execute the template to create a new project. This time, pick a Windows Control Library and give it the name WinFormInteropCtrl. Once you have done that, select File O Add to add a second project to this solution. To walk through the process of using the WindowsFormsHost control, create a new WPF Application called ProVB_WPFInterop a copy of the completed project is available with this name as part of the code download. However, there is a real possibility that if you have heavily leveraged a DataGridview control, you will want to reuse your existing control, rather than attempt to design a custom replacement. Even if you have an application in which the existing user interface takes advantage of one of the preceding control's features, it is understandable that you might be interested in integrating your existing investment in the next version of your application. In other cases, such as the HelpProvider (F1 Help), a control isn't supported because WPF provides an alternative implementation. For example, the ComboBox control in WPF doesn't provide built-in support for autocomplete. In addition to these controls that aren't directly supported, still other controls may behave differently in this release. For example, the following table lists some of the controls that are not directly supported in WPF:īindingNavigator DataGridView DateTimePicker In the case of WPF hosting Windows Forms controls, you might choose to do this if you have an existing application that relies on certain controls that have not yet been implemented in WPF. ![]()
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