protected void Button1_Click(object sender, EventArgs e)
{
Copy c = new Copy();
c.CopyNumber = int.Parse(tbCopyNumber.Text);
c.BookNumber = int.Parse(tbBookNumner.Text);
c.Type = Convert.ToChar(DropDownList1.Text);
c.SequenceNumber = int.Parse(tbSequeceNum.Text);
c.Price = double.Parse(tbPrice.Text);
if (CopyBL.Insert(c))
{
Response.Redirect("CopyGUI.aspx");
}
}
public static Boolean Delete(Copy c)
{
try
{
string strConn = ConfigurationManager.ConnectionStrings["LibraryConnectionString"].ConnectionString;
SqlConnection conn = new SqlConnection(strConn);
SqlCommand cmd = new SqlCommand("delete Copy where copyNumber = @copyNumber", conn);
cmd.Parameters.Add(new SqlParameter("@copyNumber", c.CopyNumber));
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
return true;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return false;
}
}
public static bool Insert(Copy c)
{
return CopyDA.Insert(c);
}
public static bool Delete(Copy c)
{
return CopyDA.Delete(c.CopyNumber);
}
public static bool Update(Copy c)
{
return CopyDA.Update(c);
}
public static Copy GetCopy(int copyNumber)
{
try
{
string strConn = ConfigurationManager.ConnectionStrings["LibraryConnectionString"].ConnectionString;
SqlConnection cn = new SqlConnection(strConn);
SqlCommand cmd = new SqlCommand("select * from Copy where copyNumber = @copyNumber", cn);
cmd.Parameters.AddWithValue("@copyNumber", copyNumber);
cn.Open();
SqlDataReader rd = cmd.ExecuteReader();
if (rd.Read())
{
Copy b = new Copy(int.Parse(rd["bookNumber"].ToString()), int.Parse(rd["copyNumber"].ToString()), int.Parse(rd["sequenceNumber"].ToString()),
rd["type"].ToString()[0], double.Parse(rd["price"].ToString()));
rd.Close();
cn.Close();
return b;
}
else
{
rd.Close();
cn.Close();
return null;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return null;
}
}
public static bool Update(Copy c)
{
try
{
string strConn = ConfigurationManager.ConnectionStrings["LibraryConnectionString"].ConnectionString;
SqlConnection conn = new SqlConnection(strConn);
SqlCommand cmd = new SqlCommand("update Copy set bookNumber = @bookNumber"
+ ", sequenceNumber=@sequenceNumber, type = @type, price = @price where copyNumber = @copyNumber", conn);
cmd.Parameters.Add(new SqlParameter("@copyNumber", c.CopyNumber));
cmd.Parameters.Add(new SqlParameter("@bookNumber", c.BookNumber));
cmd.Parameters.Add(new SqlParameter("@sequenceNumber", c.SequenceNumber));
cmd.Parameters.Add(new SqlParameter("@type", c.Type));
cmd.Parameters.Add(new SqlParameter("@price", c.Price));
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
return true;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return false;
}
}
public static bool Insert(Copy c)
{
try
{
string strConn = ConfigurationManager.ConnectionStrings["LibraryConnectionString"].ConnectionString;
SqlConnection conn = new SqlConnection(strConn);
SqlCommand cmd = new SqlCommand("insert into copy(copyNumber, bookNumber, sequenceNumber, type, price)" +
"values (@copyNumber, @bookNumber, @sequenceNumber, @type, @price)", conn);
cmd.Parameters.Add(new SqlParameter("@bookNumber", c.BookNumber));
cmd.Parameters.Add(new SqlParameter("@copyNumber", c.CopyNumber));
cmd.Parameters.Add(new SqlParameter("@sequenceNumber", c.SequenceNumber));
cmd.Parameters.Add(new SqlParameter("@type", c.Type));
cmd.Parameters.Add(new SqlParameter("@price", c.Price));
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
return true;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return false;
}
}
