//Bind data for role interest dropdowns
protected void RolesRepeater_BindRepeater()
{
List <Role> roles = GrouperMethods.GetRoles();
RolesRepeater.DataSource = roles;
RolesRepeater.DataBind();
}
protected void CoursesGridView_BindGridView()
{
List <Course> courses = GrouperMethods.GetCourses();
CoursesGridView.DataSource = courses;
CoursesGridView.DataBind();
}
//Bind data for personal skill dropdowns
protected void SkillsRepeater_BindRepeater()
{
List <Skill> skills = GrouperMethods.GetSkills();
SkillsRepeater.DataSource = skills;
SkillsRepeater.DataBind();
}
//Bind data for Language skill dropdowns
protected void LanguagesRepeater_BindRepeater()
{
List <ProgrammingLanguage> languages = GrouperMethods.GetLanguages();
LanguagesRepeater.DataSource = languages;
LanguagesRepeater.DataBind();
}
protected void InstructorsGridView_BindGridView()
{
List <Instructor> instructors = GrouperMethods.GetInstructors();
InstructorsGridView.DataSource = instructors;
InstructorsGridView.DataBind();
}
//Function triggered when student selects different concurrent class from dropdown
protected void CurrentCoursesDropDownList_SelectedIndexChanged(object sender, EventArgs e)
{
if (CurrentCoursesDropDownList.SelectedIndex > 0)
{
//Figure out which course
int courseID = int.Parse(CurrentCoursesDropDownList.SelectedValue);
Course course = GrouperMethods.GetCourse(courseID);
if (ViewState["CurrentCourses"] == null)
{
ViewState["CurrentCourses"] = new List <Course>();
}
else //Check if the use is trying to select a course they've already selected
{
foreach (Course curCourse in ((List <Course>)ViewState["CurrentCourses"]))
{
if (curCourse.CourseID == courseID) //They've already selected this course, so don't re-add it
{
return;
}
}
}
//Add selected course to gridview
((List <Course>)ViewState["CurrentCourses"]).Add(course);
//Rebind
CurrentCoursesGridView.DataSource = (List <Course>)ViewState["CurrentCourses"];
CurrentCoursesGridView.DataBind();
}
}
protected void StudentsGridView_BindGridView()
{
InstructorCourse course = GrouperMethods.GetInstructorCourse(InstructorCourseID);
StudentsGridView.DataSource = course.Students;
StudentsGridView.DataBind();
}
protected void AddStudentLinkButton_Click(object sender, EventArgs e)
{
StudentListPanel.Visible = false;
AddStudentPanel.Visible = true;
DuckIDTextBox.Text = "";
FirstNameTextBox.Text = "";
LastNameTextBox.Text = "";
AddStudentLinkButton.Visible = false;
SendWelcomeToAllStudentsLinkButton.Visible = false;
DeleteAllStudentsLinkButton.Visible = false;
ProgrammingLanguagesDropDownList.DataSource = GrouperMethods.GetLanguages();
ProgrammingLanguagesDropDownList.DataBind();
RolesDropDownList.DataSource = GrouperMethods.GetRoles();
RolesDropDownList.DataBind();
SkillsDropDownList.DataSource = GrouperMethods.GetSkills();
SkillsDropDownList.DataBind();
RolesGridView.DataSource = null;
RolesGridView.DataBind();
ProgrammingLanguagesGridView.DataSource = null;
ProgrammingLanguagesGridView.DataBind();
SkillsGridView.DataSource = null;
SkillsGridView.DataBind();
ProgrammingLanguagesDropDownList.DataSource = GrouperMethods.GetLanguages();
ProgrammingLanguagesDropDownList.DataBind();
}
protected void SendWelcomeToAllStudentsLinkButton_Click(object sender, EventArgs e)
{
InstructorCourse course = GrouperMethods.GetInstructorCourse(InstructorCourseID);
if (course.Students.Where(x => x.InitialNotificationSentDate == null).Count() == 0)
{
MessageBox("No Students to Notify", "All students have already been sent a welcome email. To resend, select <b>Send Welcome</b> for the individual student row.", "Okay");
}
else
{
foreach (Student student in course.Students)
{
if (student.InitialNotificationSentDate == null)
{
SendSurveyLinkMessage(student);
student.InitialNotificationSentDate = DateTime.Now;
GrouperMethods.UpdateStudent(student);
}
}
StudentsGridView_BindGridView();
MessageBox("Welcome Messages Sent", "Welcome messages have been sent to all previously unnotified students.", "Okay");
}
}
protected void CreateUser_Click(object sender, EventArgs e)
{
var manager = Context.GetOwinContext().GetUserManager <ApplicationUserManager>();
var signInManager = Context.GetOwinContext().Get <ApplicationSignInManager>();
var user = new ApplicationUser()
{
UserName = Email.Text, Email = Email.Text
};
IdentityResult result = manager.Create(user, Password.Text);
if (result.Succeeded)
{
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
//string code = manager.GenerateEmailConfirmationToken(user.Id);
//string callbackUrl = IdentityHelper.GetUserConfirmationRedirectUrl(code, user.Id, Request);
//manager.SendEmail(user.Id, "Confirm your account", "Please confirm your account by clicking <a href=\"" + callbackUrl + "\">here</a>.");
Instructor instructor = new GroupBuilder.Instructor();
instructor.FirstName = FirstNameTextBox.Text.Trim();
instructor.LastName = LastNameTextBox.Text.Trim();
instructor.DuckID = DuckIDTextBox.Text.Trim();
instructor.IdentityUserID = user.Email;
int instructorID = GrouperMethods.InsertInstructor(instructor);
Session["InstructorID"] = instructorID;
signInManager.SignIn(user, isPersistent: false, rememberBrowser: false);
IdentityHelper.RedirectToReturnUrl(Request.QueryString["ReturnUrl"], Response);
}
else
{
ErrorMessage.Text = result.Errors.FirstOrDefault();
}
}
//Bind data for previous classes dropdowns
protected void ClassesRepeater_BindRepeater()
{
List <Course> courses = GrouperMethods.GetCourses().Where(x => x.CoreCourseFlag == true).ToList();
ClassesRepeater.DataSource = courses;
ClassesRepeater.DataBind();
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
string id = Request.QueryString["id"].Trim().ToLower();
Student thisStudent = GrouperMethods.GetStudent(int.Parse(id));
//NameLabel.Text = " " + thisStudent.PreferredName;
}
}
protected void DeleteAllGroupsLinkButton_Click(object sender, EventArgs e)
{
InstructorCourse course = GrouperMethods.GetInstructorCourse(InstructorCourseID);
foreach (Group group in course.Groups)
{
GrouperMethods.DeleteGroup(group.GroupID);
}
StudentsGridView_BindGridView();
GroupsRepeater_BindRepeater();
}
protected void StudentsGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
int studentID = Convert.ToInt32(StudentsGridView.DataKeys[e.Row.RowIndex].Values[0]);
Student student = GrouperMethods.GetStudent(studentID);
Label languagesLabel = (Label)e.Row.FindControl("LanguagesLabel");
string languages = "";
foreach (ProgrammingLanguage language in student.Languages.OrderBy(x => x.ProficiencyLevel))
{
switch (language.Name)
{
case "Java":
languages += "<span class='fa fa-coffee'></span>";
break;
case "Python":
languages += "<span class='fa fa-python'></span>";
break;
case "Android":
languages += "<span class='fa fa-android'></span>";
break;
case "Web Programming (PHP)":
languages += "<span class='fa fa-php'></span>";
break;
case "Web Design (HTML/XML)":
languages += "<span class='fa fa-html5'></span>";
break;
case "C++":
languages += "<span style='font-size: small; font-weight: bold; margin-left: 3px; margin-right: 3px;'>C++</span>";
//languages += @"<span class='fa-layers fa-fw'>
// <i class='fas fa-circle-o'></i>
// <span class='fa-layers-text fa-inverse' data-fa-transform='shrink-8 down-3' style='font-weight:900'>C++</span>
// </span>";
break;
case "C":
languages += "<span style='font-size: small; font-weight: bold; margin-left: 3px; margin-right: 3px;'>C</span>";
break;
}
}
languagesLabel.Text = languages;
}
}
protected void StudentsGridView_BindGridView()
{
InstructorCourse course = GrouperMethods.GetInstructorCourse(InstructorCourseID);
if (course.Groups.Count > 0)
{
NumberOfGroupsDropDownList.SelectedValue = course.Groups.Count.ToString();
}
StudentsGridView.DataSource = course.Students;
StudentsGridView.DataBind();
}
protected void BindDropDownLists()
{
List <Course> courses = GrouperMethods.GetCourses();
CoursesDropDownList.DataSource = courses;
CoursesDropDownList.DataBind();
List <ListItem> years = new List <ListItem>();
for (int i = DateTime.Now.Year; i < DateTime.Now.Year + 10; i++)
{
ListItem year = new ListItem {
Text = i.ToString(), Value = i.ToString()
};
years.Add(year);
}
YearsDropDownList.DataSource = years;
YearsDropDownList.DataBind();
List <ListItem> times = new List <ListItem>();
for (int i = 8; i < 19; i++)
{
for (int j = 0; j < 2; j++)
{
int hour = i;
if (i > 12)
{
hour = i - 12;
}
string minutes = (j * 30).ToString();
if (minutes.Length == 1)
{
minutes += "0";
}
string time = hour.ToString() + ":" + minutes;
ListItem item = new ListItem {
Text = time, Value = time
};
times.Add(item);
}
}
TimesDropDownList.DataSource = times;
TimesDropDownList.DataBind();
}
protected void GroupsRepeater_BindRepeater()
{
InstructorCourse course = GrouperMethods.GetInstructorCourse(InstructorCourseID);
if (course.Groups.Count > 0)
{
NoGroupsPanel.Visible = false;
}
else
{
NoGroupsPanel.Visible = true;
}
GroupsRepeater.DataSource = course.Groups;
GroupsRepeater.DataBind();
}
protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["ID"] != "" && Request.QueryString["ID"] != null)
{
int instructorCourseID = int.Parse(Request.QueryString["ID"]);
InstructorCourseID = instructorCourseID;
InstructorCourse course = GrouperMethods.GetInstructorCourse(instructorCourseID);
CourseNameLabel.Text = course.Course.FullName;
StudentsGridView_BindGridView();
}
}
protected void BuildGroupsLinkButton_Click(object sender, EventArgs e)
{
int numberOfGroups = int.Parse(NumberOfGroupsDropDownList.SelectedValue);
for (int i = 0; i < numberOfGroups; i++)
{
Group group = new GroupBuilder.Group();
group.InstructorCourseID = InstructorCourseID;
group.GroupNumber = i + 1;
group.Name = "Group " + (i + 1).ToString() + " (untitled)";
GrouperMethods.InsertGroup(group);
}
GroupsRepeater_BindRepeater();
}
protected void CoursesGridView_RowCommand(object sender, GridViewCommandEventArgs e)
{
int instructorCourseID = int.Parse(e.CommandArgument.ToString());
if (e.CommandName == "delete_instructor_course")
{
GrouperMethods.DeleteInstructorCourse(instructorCourseID);
BindGridView();
}
if (e.CommandName == "edit_instructor_course")
{
Response.Redirect("students.aspx?ID=" + instructorCourseID);
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["ID"] != "" && Request.QueryString["ID"] != null)
{
int instructorCourseID = int.Parse(Request.QueryString["ID"]);
InstructorCourseID = instructorCourseID;
InstructorCourse course = GrouperMethods.GetInstructorCourse(instructorCourseID);
GroupsRepeater_BindRepeater();
}
if (!IsPostBack)
{
StudentsGridView_BindGridView();
}
}
protected void LogIn(object sender, EventArgs e)
{
if (IsValid)
{
// Validate the user password
var manager = Context.GetOwinContext().GetUserManager <ApplicationUserManager>();
var signinManager = Context.GetOwinContext().GetUserManager <ApplicationSignInManager>();
// This doen't count login failures towards account lockout
// To enable password failures to trigger lockout, change to shouldLockout: true
var result = signinManager.PasswordSignIn(Email.Text, Password.Text, RememberMe.Checked, shouldLockout: false);
switch (result)
{
case SignInStatus.Success:
Instructor instructor = GrouperMethods.GetInstructor(Email.Text.ToLower().Trim());
if (instructor != null)
{
Session["InstructorID"] = instructor.InstructorID;
}
IdentityHelper.RedirectToReturnUrl(Request.QueryString["ReturnUrl"], Response);
break;
case SignInStatus.LockedOut:
Response.Redirect("/Account/Lockout");
break;
case SignInStatus.RequiresVerification:
Response.Redirect(String.Format("/Account/TwoFactorAuthenticationSignIn?ReturnUrl={0}&RememberMe={1}",
Request.QueryString["ReturnUrl"],
RememberMe.Checked),
true);
break;
case SignInStatus.Failure:
default:
FailureText.Text = "Invalid login attempt";
ErrorMessage.Visible = true;
break;
}
}
}
protected void ProcessStudentsFileLinkButton_Click(object sender, EventArgs e)
{
List <Student> students = new List <Student>();
HttpPostedFile file = StudentsFileUpload.PostedFile;
string fileName = "";
if (file.ContentLength > 0)
{
fileName = SaveFile(file);
}
string path = Server.MapPath(LOCAL_PATH + fileName);
if (File.Exists(path))
{
StreamReader reader = File.OpenText(path);
students = ParseFileForStudents(reader);
int importedCount = 0;
foreach (Student student in students)
{
int studentID = GrouperMethods.InsertStudent(student);
if (studentID > 0)
{
importedCount++;
}
}
if (importedCount > 0)
{
StudentsGridView_BindGridView();
ImportStudentsLinkButton.Visible = true;
ImportStudentsPanel.Visible = false;
StudentListPanel.Visible = true;
AddStudentLinkButton.Visible = true;
MessageBox("Student Records Imported", importedCount.ToString() + " student records were found and imported.", "Okay");
}
}
}
//This executes whenever the page is loaded (or re-loaded)
protected void Page_Load(object sender, EventArgs e)
{
//instantiate the student object
if (ThisStudent == null)
{
ThisStudent = new Student();
}
if (!TEST_FLAG)
{
//If the GUID does not idicate a valid student, redirect
if ((ThisStudent.SurveySubmittedDate != null) || (GUID == "") || (GUID == null))
{
Response.Redirect("Oops.aspx");
}
}
//Only do these things the firsrt time the page loads (not on post-backs)
if (!IsPostBack)
{
//Fill out name information
FirstNameLabel.Text = ThisStudent.FirstName;
LastNameLabel.Text = ThisStudent.LastName;
PreferedNameTextBox.Text = ThisStudent.FirstName;
//Bind data for drop-down repeaters
ClassesRepeater_BindRepeater();
RolesRepeater_BindRepeater();
LanguagesRepeater_BindRepeater();
SkillsRepeater_BindRepeater();
//Bind data for current courses section
CurrentCoursesDropDownList.DataSource = GrouperMethods.GetCourses();
CurrentCoursesDropDownList.DataBind();
CurrentCoursesGridView.DataSource = null;
CurrentCoursesGridView.DataBind();
}
}
protected void BindGridView()
{
string userName = Context.User.Identity.GetUserName();
List <InstructorCourse> courses = new List <InstructorCourse>();
if (!string.IsNullOrEmpty(userName))
{
Instructor instructor = GrouperMethods.GetInstructor(userName);
if (instructor != null)
{
InstructorNameLabel.Text = instructor.FirstName + " " + instructor.LastName;
}
courses = GrouperMethods.GetInstructorCourses(instructor.InstructorID);
if (courses.Count > 0)
{
CoursesPanel.Visible = true;
NoCoursesPanel.Visible = false;
AddCourseSectionPanel.Visible = false;
}
else
{
AddCourseSectionPanel.Visible = false;
NoCoursesPanel.Visible = true;
CoursesPanel.Visible = false;
}
}
//else
//{
// courses = GrouperMethods.GetInstructorCourses();
//}
CoursesGridView.DataSource = courses;
CoursesGridView.DataBind();
}
protected void SaveCourseLinkButton_Click(object sender, EventArgs e)
{
string userName = Context.User.Identity.GetUserName();
Instructor instructor = GrouperMethods.GetInstructor(userName);
if (instructor != null)
{
InstructorCourse course = new InstructorCourse();
course.InstructorID = instructor.InstructorID;
course.CourseID = int.Parse(CoursesDropDownList.SelectedValue);
course.TermNumber = int.Parse(TermsDropDownList.SelectedValue);
course.Year = int.Parse(YearsDropDownList.SelectedValue);
switch (course.TermNumber)
{
case 1:
course.TermName = "Fall " + course.Year.ToString();
break;
case 2:
course.TermName = "Winter " + course.Year.ToString();
break;
case 3:
course.TermName = "Spring " + course.Year.ToString();
break;
case 4:
course.TermName = "Summer " + course.Year.ToString();
break;
}
int instructorCourseID = GrouperMethods.InsertInstructorCourse(course);
BindGridView();
}
}
protected void MessageBoxCreateLinkButton_Click(object sender, EventArgs e)
{
int studentID = int.Parse(SelectedStudentIDHiddenField.Value);
if (studentID == 0)
{
InstructorCourse course = GrouperMethods.GetInstructorCourse(InstructorCourseID);
foreach (Student student in course.Students)
{
GrouperMethods.DeleteStudent(student.StudentID);
}
StudentsGridView_BindGridView();
MessageBox("Students Deleted", "All students have been deleted.", "Okay");
}
else
{
GrouperMethods.DeleteStudent(studentID);
MessageBox("Student Deleted", "The student record has been deleted.", "Okay");
StudentsGridView_BindGridView();
}
}
protected void StudentsGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
int studentID = Convert.ToInt32(StudentsGridView.DataKeys[e.Row.RowIndex].Values[0]);
Student student = GrouperMethods.GetStudent(studentID);
string languages = "";
if (student.Languages != null)
{
if (student.Languages.Count > 0)
{
languages += "<ul>";
foreach (ProgrammingLanguage language in student.Languages)
{
languages += "<li>" + language.Name + " - " + language.ProficiencyLevel.ToString() + "</li>";
}
languages += "</ul>";
}
}
Label programmingLanguagesLabel = (Label)e.Row.FindControl("LanguagesLabel");
programmingLanguagesLabel.Text = languages;
string roles = "";
if (student.InterestedRoles != null)
{
if (student.InterestedRoles.Count > 0)
{
roles += "<ul>";
foreach (Role role in student.InterestedRoles)
{
roles += "<li>" + role.Name + " - " + role.InterestLevel.ToString() + "</li>";
}
roles += "</ul>";
}
}
Label rolesLabel = (Label)e.Row.FindControl("RolesLabel");
rolesLabel.Text = roles;
string skills = "";
if (student.Skills != null)
{
if (student.Skills.Count > 0)
{
skills += "<ul>";
foreach (Skill skill in student.Skills)
{
skills += "<li>" + skill.Name + " - " + skill.ProficiencyLevel.ToString() + "</li>";
}
skills += "</ul>";
}
}
Label skillsLabel = (Label)e.Row.FindControl("SkillsLabel");
skillsLabel.Text = skills;
}
}
protected void SendSurveyLinkMessage(Student student)
{
InstructorCourse course = GrouperMethods.GetInstructorCourse(student.InstructorCourseID);
string header = @" <html>
<head>
<style>
body {
font-size:15px;
font-family:'Calibri',sans-serif;
}
p, ul, li {
font-size:15px;
font-family:'Calibri',sans-serif;
}
</style>
</head>
<body>";
string footer = @"</body>
</html>";
string messageBody = header;
messageBody +=
@"<table border='0' cellpadding='0' cellspacing='0' height='100%' width='100%' id='bodyTable'>
<tr>
<td>
<table border='0' cellpadding='20' cellspacing='0' width='600' id='emailContainer'>
<tr>
<td valign='top'>";
messageBody += "<h3>" + course.Course.FullName + " - Welcome</h3>";
string link = "";
link = "https://groupbuilder.azurewebsites.net?id=" + (student.FirstName + student.LastName);
messageBody += @"</td>
</tr>
<tr>
<td>
<p>Welcome to " + course.Course.FullName + @". This course requires you to complete a short survey to best match you to a group.</p>
<p>
At your earliest convenience, please visit <a href='" + link + "'>" + link + @"</a> and complete the survey.
</p>
</td>
</tr>";
messageBody += @" <tr>
<td>
<p>Please contact <a href='mailto:[email protected]'>Chris Friedrich</a> with general questions.</p>
</td>
</tr>
</table>
</td>
</tr>
</table> ";
messageBody += footer;
SmtpClient client = new SmtpClient();
MailMessage mailMessage = new MailMessage();
mailMessage.From = new MailAddress("*****@*****.**", course.Course.FullName);
mailMessage.To.Add(student.DuckID + "@uoregon.edu");
mailMessage.Subject = "Welcome to " + course.Course.Code;
mailMessage.Body = messageBody;
mailMessage.IsBodyHtml = true;
if (client.Host != null)
{
if (mailMessage.To.Count > 0)
{
try
{
client.Send(mailMessage);
}
catch (SmtpFailedRecipientException ex)
{
SmtpStatusCode statusCode = ex.StatusCode;
if (statusCode == SmtpStatusCode.MailboxBusy || statusCode == SmtpStatusCode.MailboxUnavailable || statusCode == SmtpStatusCode.TransactionFailed)
{
Thread.Sleep(2000);
client.Send(mailMessage);
}
else
{
throw;
}
}
finally
{
mailMessage.Dispose();
}
}
}
}
protected void SaveAddStudentLinkButton_Click(object sender, EventArgs e)
{
if (String.IsNullOrEmpty(SelectedStudentIDHiddenField.Value))
{
Student student = new Student();
student.InstructorCourseID = InstructorCourseID;
student.FirstName = FirstNameTextBox.Text.Trim();
student.LastName = LastNameTextBox.Text.Trim();
student.DuckID = DuckIDTextBox.Text.Trim();
int studentID = GrouperMethods.InsertStudent(student);
if (studentID > 0)
{
if (ViewState["Languages"] != null)
{
if (((List <ProgrammingLanguage>)ViewState["Languages"]).Count() > 0)
{
foreach (ProgrammingLanguage language in ((List <ProgrammingLanguage>)ViewState["Languages"]))
{
GrouperMethods.InsertStudentLanguage(studentID, language.LanguageID, (int)language.ProficiencyLevel);
}
}
}
if (ViewState["Roles"] != null)
{
if (((List <Role>)ViewState["Roles"]).Count() > 0)
{
foreach (Role role in ((List <Role>)ViewState["Roles"]))
{
GrouperMethods.InsertStudentRoleInterest(studentID, role.RoleID, (int)role.InterestLevel);
}
}
}
if (ViewState["Skills"] != null)
{
if (((List <Skill>)ViewState["Skills"]).Count() > 0)
{
foreach (Skill skill in ((List <Skill>)ViewState["Skills"]))
{
GrouperMethods.InsertStudentSkill(studentID, skill.SkillID, (int)skill.ProficiencyLevel);
}
}
}
}
}
else
{
int studentID = int.Parse(SelectedStudentIDHiddenField.Value);
Student student = GrouperMethods.GetStudent(studentID);
student.FirstName = FirstNameTextBox.Text.Trim();
student.LastName = LastNameTextBox.Text.Trim();
student.DuckID = DuckIDTextBox.Text.Trim();
if (ViewState["Languages"] != null)
{
student.Languages = (List <ProgrammingLanguage>)ViewState["Languages"];
}
if (ViewState["Roles"] != null)
{
student.InterestedRoles = (List <Role>)ViewState["Roles"];
}
if (ViewState["Skills"] != null)
{
student.Skills = (List <Skill>)ViewState["Skills"];
}
GrouperMethods.UpdateStudent(student);
}
StudentsGridView_BindGridView();
SelectedStudentIDHiddenField.Value = null;
RolesGridView.DataSource = null;
RolesGridView.DataBind();
ProgrammingLanguagesGridView.DataSource = null;
ProgrammingLanguagesGridView.DataBind();
SkillsGridView.DataSource = null;
SkillsGridView.DataBind();
AddStudentPanel.Visible = false;
DuckIDTextBox.Text = "";
FirstNameTextBox.Text = "";
LastNameTextBox.Text = "";
AddStudentLinkButton.Visible = true;
SendWelcomeToAllStudentsLinkButton.Visible = true;
DeleteAllStudentsLinkButton.Visible = true;
StudentListPanel.Visible = true;
}
