In Microsoft's Toolkit DataForm, Is there any feature Prompting the User to Save When Leaving a Page

Question

In Microsoft's Toolkit DataForm

User is trying to add a new item in Toolkit Dataform by clicking Add icon. In the middle if he selects any other menu tab, then he is going to lose all the entered info.

I want to show promt to User to Save When Leaving a Page. Like Warning user before leaving page with unsaved changes.

score 0 · Accepted Answer · answered Apr 13 '12 at 15:28

After some research I found the solution.

Theere is a Method called OnNavigatingFrom in Silverlight page. that methods is Called just before a page is no longer the active page in a frame.

So you can add any alert or confirm message in that methods.

protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
        {
            if (DataForm.IsEditMode)
            {
                System.Windows.Browser.HtmlPage.Window.Alert("Please Save or Cancel changes before switching the page"); 
                e.Cancel = true;
            }
            base.OnNavigatingFrom(e);
        }

that will be called when you want to move to other page from current page edit or add mode.

In Microsoft's Toolkit DataForm, Is there any feature Prompting the User to Save When Leaving a Page

1 Answers1