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viewsupply.aspx.cs
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viewsupply.aspx.cs
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using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace SchoolDistWeb
{
public partial class viewsupply : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//Sets security level to Parent and Admin only
if (Session["Security"].ToString() == "Parents" || Session["Security"].ToString() == "Admin")
{
//Do nothing
}
else if (Session["Security"].ToString() == "Educators")
{
//If the user is not a parent, then they are redirected back to the portal
Server.Transfer("portal.html", true);
}
else
{
//Anyone else is redirected back to the login page
Server.Transfer("login.aspx", true);
}
}
//Method that allows users to view school supply information
protected void btnSearch_Click(object sender, EventArgs e)
{
string constr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString; //Connects to database through ConnectionString in the Web.Config file
using (SqlConnection con = new SqlConnection(constr))
{
using (SqlCommand cmd = new SqlCommand()) //Represents a Transact-SQL statement or stored procedure to execute against a SQL Server database. This class cannot be inherited.
{
string sql = "SELECT Teacher, Supply1, Supply2, Supply3, Supply4, Supply5, Supply6, Supply7, Supply8 FROM Supplies"; //SQL command which allows users to view all data from Teacher table
if (!string.IsNullOrEmpty(txtLastName.Text.Trim())) //Lists all teacher school supply information if textbox control is empty
{
sql += " WHERE Teacher LIKE @Teacher + '%'"; //Allows users to view information by teacher name
cmd.Parameters.AddWithValue("@Teacher", txtLastName.Text.Trim());
}
cmd.CommandText = sql; //Gets or sets the Transact-SQL statement, table name or stored procedure to execute at the data source.
cmd.Connection = con; //Connects to command
using (SqlDataAdapter sda = new SqlDataAdapter(cmd)) //Represents a set of data commands and a database connection that are used to fill the DataSet and update a SQL Server database.
{
DataTable dt = new DataTable(); //Creates new data table
sda.Fill(dt); //Fills data table
grdSupply.DataSource = dt; //Uses data source to fill gridview control
grdSupply.DataBind(); //Binds data to grid view
}
}
}
}
//Method that allows users to print gridview information if pressing Print button
protected void btnPrints_Click(object sender, EventArgs e)
{
btnPrints.Attributes.Add("onclick", "return printing()"); //Creates JavaScript onclick method that populates print options screen
}
}
}