Using Razor with Visual Basic: Listing 6.

Restricting functionality to authorized users.

@Code
  If User.IsInRole("admin") Then
    @Html.ActionLink("Create New", "Create")
  End If
End Code

@Code
  If User.IsInRole("admin") Then
    @Html.ActionLink("Email", "Email", New With {.id = currentItem.CustomerID})
    @Html.Raw(" | ")
    @Html.ActionLink("Delete", "Delete", New With {.id = currentItem.CustomerID}) 
    @Html.Raw(" | ")
  End If
  If User.IsInRole("clerical") OrElse User.IsInRole("admin") Then
    @Html.ActionLink("Edit", "Edit", New With {.id = currentItem.CustomerID}) 
    @Html.Raw(" | ")
  End If
  If User.IsInRole("employee") Then
    @Html.ActionLink("Details", "Details", New With {.id = currentItem.CustomerID})
  End If
End Code

Similarly, the link at the top of the customer list to create a new customer is restricted to admin users only by the following code:

@Code
  If User.IsInRole("admin") Then
    @Html.ActionLink("Create New", "Create")
  End If
End Code

About the Author

Joe Kunk is a Microsoft MVP in Visual Basic, three-time president of the Greater Lansing User Group for .NET, and developer for Dart Container Corporation of Mason, Michigan. He's been developing software for over 30 years and has worked in the education, government, financial and manufacturing industries. Kunk's co-authored the book "Professional DevExpress ASP.NET Controls" (Wrox Programmer to Programmer, 2009). He can be reached via email at [email protected].

comments powered by Disqus

Featured

  • IDE Irony: Coding Errors Cause 'Critical' Vulnerability in Visual Studio

    In a larger-than-normal Patch Tuesday, Microsoft warned of a "critical" vulnerability in Visual Studio that should be fixed immediately if automatic patching isn't enabled, ironically caused by coding errors.

  • Building Blazor Applications

    A trio of Blazor experts will conduct a full-day workshop for devs to learn everything about the tech a a March developer conference in Las Vegas keynoted by Microsoft execs and featuring many Microsoft devs.

  • Gradient Boosting Regression Using C#

    Dr. James McCaffrey from Microsoft Research presents a complete end-to-end demonstration of the gradient boosting regression technique, where the goal is to predict a single numeric value. Compared to existing library implementations of gradient boosting regression, a from-scratch implementation allows much easier customization and integration with other .NET systems.

  • Microsoft Execs to Tackle AI and Cloud in Dev Conference Keynotes

    AI unsurprisingly is all over keynotes that Microsoft execs will helm to kick off the Visual Studio Live! developer conference in Las Vegas, March 10-14, which the company described as "a must-attend event."

  • Copilot Agentic AI Dev Environment Opens Up to All

    Microsoft removed waitlist restrictions for some of its most advanced GenAI tech, Copilot Workspace, recently made available as a technical preview.

Subscribe on YouTube