Validation Check (ASP.NET MVC 2)

Controller Page[StudentController.cs]
===============================================
StudentRepository studentRepositoryObj = new StudentRepository();    //LINQ to SQL Classes
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create(FormCollection formValus)
{
    StudentInfo studentObj = new StudentInfo();

    studentObj.Name = Request.Form["Name"].Trim();
    if (studentObj.Name.Length == 0)
    {
        ModelState.AddModelError("Name", "Name is required.");    
    }

    studentObj.Age = Convert.ToInt16(Request.Form["Age"]);
    if (studentObj.Age < 69 || studentObj.Age > 420)
    {
        ModelState.AddModelError("Age", "Age between 69 to 420.");
    }

    studentObj.Type = Request.Form["Type"];
    if (studentObj.Type.Length == 0)
    {
        ModelState.AddModelError("Type", "Type Not Selected.");
    }

    string status = Request.Form["Status"];
    bool state;
    if (bool.TryParse(status, out state))
    {
        studentObj.Status = state;
    }

    string isActive = Request.Form["IsActive"];          
    if (bool.TryParse(isActive, out state))
    {
        studentObj.IsActive = state;
    }
    else
    {
        ModelState.AddModelError("IsActive", "Tick on Activity");
    }

    if (!ModelState.IsValid)
    {    
        return View("Create", studentObj);
    }
    studentRepositoryObj.Add(studentObj);
    studentRepositoryObj.Save();
    return RedirectToAction("Index");
}

View Page [Create.cs]
===============================================
<% using (Html.BeginForm()) {%>
    <%= Html.ValidationSummary("An Error Occured") %><%--Display All Controller Message if Field is Balnk--%>
        
        <p>
            <%= Html.Label("Name") %>:
            <%= Html.TextBox("Name")%>
            <%= Html.ValidationMessage("Name","*") %>
        </p>
        <p>
            <%= Html.Label("Age") %>:              
            <%= Html.TextBox("Age") %>
            <%= Html.ValidationMessage("Age", "*") %>
        </p>    
            <%= Html.Label("Type") %>:
            <%= Html.DropDownList("Type", new SelectList(type), "Select")%>
            <%=Html.ValidationMessage("Type", "Select Type") %>
        <p>
        </p>    
            <%= Html.Label("Status") %>:
            <%= Html.CheckBox("Status")%>
        </p>
        <p>
            Is Active:
            <%= Html.RadioButton("IsActive","True")%>Yes
            <%= Html.RadioButton("IsActive", "False")%>No
            <%=Html.ValidationMessage("IsActive", "Activity not Selected") %>
        </p>
        <p>
            <input type="submit" value="Create" />
        </p>
        
<% } %>