/
Instructor.MakeAnnouncement.aspx.cs
118 lines (90 loc) · 3.86 KB
/
Instructor.MakeAnnouncement.aspx.cs
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using System;
using System.Collections.Generic;
using System.Collections;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Diagnostics;
using System.Configuration;
public partial class Instructor_MakeAnnouncement : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
txtText.Style.Add("margin", "0px 0px 0px 24px");
txtHeader.Style.Add("width", "500px");
txtText.Style.Add("width", "500px");
txtText.Style.Add("height", "300px");
Session["UserID"] = "Matam.Pages@gmail.com";
PopDropDown();
}
protected void PopDropDown()
{
ArrayList courses = new ArrayList();
ArrayList users = new ArrayList();
DateTime date = DateTime.Now;
try
{
SqlConnection sc = new SqlConnection(ConfigurationManager.ConnectionStrings["conString"].ConnectionString); // connection string is in web config
SqlCommand query = new SqlCommand();
sc.Open();
query.Connection = sc;
query.CommandText = "Select Course.CourseName, Enrollment.CourseID from SectionStaff " +
"Inner Join Section on SectionStaff.SectionID = Section.SectionID " +
"Inner Join Enrollment on Section.SectionID = Enrollment.SectionID " +
"Inner Join Course on Enrollment.CourseID = Course.CourseID " +
"Where SectionStaff.EmailAddress = '" + Session["UserID"].ToString() + "'";// Gathers all users of specific type
SqlDataReader read = query.ExecuteReader();
while (read.Read())
{
courses.Add(read.GetString(0));
courses.Add(read.GetInt32(1));
}
sc.Close();
ddlCourses.Items.Insert(0, "Please Select");
for(int i = 0; i < courses.Count; i += 2)
{
ddlCourses.Items.Add(new ListItem(courses[i].ToString(), courses[i + 1].ToString()));
}
}
catch (SqlException SQLe)
{
System.Diagnostics.Debug.Write(SQLe.ToString());
}
}
protected void btnSendAnnounce_Click(object sender, EventArgs e)
{
ArrayList users = new ArrayList();
DateTime date = DateTime.Now;
try
{
SqlConnection sc = new SqlConnection(ConfigurationManager.ConnectionStrings["conString"].ConnectionString); // connection string is in web config
SqlCommand query = new SqlCommand();
sc.Open();
query.Connection = sc;
query.CommandText = "Select EmailAddress From Enrollment Where CourseID = " + ddlCourses.SelectedValue.ToString();// Gathers all users of specific type
SqlDataReader read = query.ExecuteReader();
while (read.Read())
{
users.Add(read.GetString(0));
}
for (int i = 0; i < users.Count; i++)
{
query.CommandText = "Insert into Notifications(EmailAddress, NotificationType, NotificationDate, NotificationText, BriefDescription)" +
" Values(@Email, Announcement, @Date, @Text, @Brief)";
query.Parameters.AddWithValue("@Email", users[i]);
query.Parameters.AddWithValue("@Date", date);
query.Parameters.AddWithValue("@Text", txtText.Text);
query.Parameters.AddWithValue("@Brief", txtHeader.Text);
query.ExecuteNonQuery();
}
sc.Close();
}
catch (SqlException SQLe)
{
System.Diagnostics.Debug.Write(SQLe.ToString());
}
}
}