How to access the wpf form controls which is inside the frame?

Question

Hi,

My WPF main page contains the frame control and it is loaded with another WPF sub page. Now I need to get Datagrid data, which is inside the sub page, from the main page when clicking the button which is inside the main form.

I am loading the subForm inside the Main forms frame by using below line.

nav_Frame.Source = new Uri("UserControls/subForm.xaml", UriKind.RelativeOrAbsolute);

Thanks

Answer 1

Hi,@Arivazhagan K. Welcome Microsoft Q&A. You could try to use the following code.

First, give the DataGrid a name in the subForm.xaml file:

<DataGrid x:Name="myDataGrid" ...>
    <!-- DataGrid content -->
</DataGrid>

In the main page, after loading the subForm into the frame, you can access the DataGrid as follows:

nav_Frame.Source = new Uri("UserControls/subForm.xaml", UriKind.RelativeOrAbsolute);


var subForm = nav_Frame.Content as FrameworkElement; // Get the content of the frame
var dataGrid = subForm?.FindName("myDataGrid") as DataGrid; // Find the DataGrid by its name


if (dataGrid != null)
{
    
    // For example, you can retrieve data from the DataGrid
    var data = dataGrid.ItemsSource; // Assuming you have set the ItemsSource for the DataGrid
    // Do something with the data
}

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