Ejercicios completo Biblioteca - Programadores de ITCA

Ejercicios completo Biblioteca
Formulario MDI
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles MyBase.Load
Me.WindowState = FormWindowState.Maximized
IsMdiContainer = True
End Sub
Private Sub EditorialToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e
As System.EventArgs) Handles EditorialToolStripMenuItem.Click
Dim frm1 As New frmEditorial
frm1.MdiParent = Me
frm1.Show()
End Sub
Private Sub SucursalToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles SucursalToolStripMenuItem.Click
Dim rpt1 As New frmSucursal1
rpt1.MdiParent = Me
rpt1.Show()
End Sub
Private Sub PrestamosToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e
As System.EventArgs) Handles PrestamosToolStripMenuItem.Click
Dim rpt2 As New frmPrestamosLibro
rpt2.MdiParent = Me
rpt2.Show()
End Sub
Private Sub LibrosPrestadosToolStripMenuItem_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles LibrosPrestadosToolStripMenuItem.Click
Dim rpt3 As New frmLibrosPrestados
rpt3.MdiParent = Me
rpt3.Show()
End Sub
Private Sub PrestamosPoToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e
As System.EventArgs) Handles PrestamosPoToolStripMenuItem.Click
Dim rpt4 As New frmPrestamosFecha
rpt4.MdiParent = Me
rpt4.Show()
End Sub
End Class
Clase conectar
Public Class Conectar
Public Function concetar_sql() As String
Dim sql_con As String
sql_con = "Data Source=GENESIS-PC\SQLEXPRESS;Initial
Catalog=biblioteca;Integrated Security=True"
Return sql_con
End Function
End Class
Clase Editorial
Imports System.Data.SqlClient
Public Class clsEditorial
Private _cod_editorial As Integer
Private _nombre_editorial As String
Private _pais_editorial As String
Private _telefono_editorial As String
Public Property cod_editorial() As Integer
Get
Return Me._cod_editorial
End Get
Set(ByVal value As Integer)
Me._cod_editorial = value
End Set
End Property
Public Property nombre_editorial() As String
Get
Return Me._nombre_editorial
End Get
Set(ByVal value As String)
Me._nombre_editorial = value
End Set
End Property
Public Property pais_editorial() As String
Get
Return Me._pais_editorial
End Get
Set(ByVal value As String)
Me._pais_editorial = value
End Set
End Property
Public Property telefono_editorial() As String
Get
Return Me._telefono_editorial
End Get
Set(ByVal value As String)
Me._telefono_editorial = value
End Set
End Property
Public Sub cargar(ByVal codigo As Integer, ByVal nombre As String, ByVal pais As
String, ByVal telefono As String)
Me._cod_editorial = codigo
Me._nombre_editorial = nombre
Me._pais_editorial = pais
Me._telefono_editorial = telefono
End Sub
Public Sub insertar()
Dim cadena_conexion As New Conectar()
Dim conectar As New SqlConnection
Dim cadena_sql As String
Try
conectar.ConnectionString = cadena_conexion.concetar_sql()
cadena_sql = "insert into editorial values(" & Me.cod_editorial & " , '" &
Me.nombre_editorial & "', '" & Me.pais_editorial & "', '" & Me.telefono_editorial & "');"
Dim vcomando As New SqlCommand(cadena_sql, conectar)
conectar.Open()
vcomando.ExecuteNonQuery()
conectar.Close()
MessageBox.Show("Datos insertados con exito", "Información",
MessageBoxButtons.OK, MessageBoxIcon.Information)
Catch ex As Exception
MessageBox.Show(ex.ToString, "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error)
End Try
End Sub
Public Sub actualizar(ByVal codigo As Integer)
Dim cadena_conexion As New Conectar()
Dim conectar As New SqlConnection
Dim cadena_sql As String
Try
conectar.ConnectionString = cadena_conexion.concetar_sql()
cadena_sql = "update editorial set nombre_editorial = '" &
Me.nombre_editorial & "', pais_editorial = '" & Me.pais_editorial & "',
telefono_editorial = '" & Me.telefono_editorial & "' where cod_editorial = " & codigo &
";"
Dim vcomando As New SqlCommand(cadena_sql, conectar)
conectar.Open()
vcomando.ExecuteNonQuery()
conectar.Close()
MessageBox.Show("Datos actualizados con exito", "Información",
MessageBoxButtons.OK, MessageBoxIcon.Information)
Catch ex As Exception
MessageBox.Show(ex.ToString, "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error)
End Try
End Sub
Public Sub eliminar(ByVal codigo As Integer)
Dim cadena_conexion As New Conectar()
Dim conectar As New SqlConnection
Dim cadena_sql As String
Try
conectar.ConnectionString = cadena_conexion.concetar_sql()
cadena_sql = "delete editorial where cod_editorial = " & codigo & ";"
Dim vcomando As New SqlCommand(cadena_sql, conectar)
conectar.Open()
vcomando.ExecuteNonQuery()
conectar.Close()
MessageBox.Show("Datos eliminados con exito", "Información",
MessageBoxButtons.OK, MessageBoxIcon.Information)
Catch ex As Exception
MessageBox.Show(ex.ToString, "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error)
End Try
End Sub
Public Function mostrar_editorial() As DataSet
Dim
Dim
Dim
Dim
Try
cadena_conexion As New Conectar()
conectar As New SqlConnection
cadena_sql As String
ds_editorial As New Data.DataSet
'Creamos el escenario desconectado
conectar.ConnectionString = cadena_conexion.concetar_sql
cadena_sql = "select cod_editorial, nombre_editorial, pais_editorial,
telefono_editorial from editorial;"
Dim vAdapter As New SqlDataAdapter(cadena_sql, conectar)
conectar.Open()
vAdapter.Fill(ds_editorial, "editorial")
conectar.Close()
Catch ex As Exception
MessageBox.Show(ex.ToString, "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error)
End Try
Return ds_editorial
End Function
Public Function buscar_editorial(ByVal nombre As String) As DataSet
Dim cadena_conexion As New Conectar()
Dim conectar As New SqlConnection
Dim cadena_sql As String
Dim sel_ds_editorial As New Data.DataSet
Try
'Creamos el escenario desconectado
conectar.ConnectionString = cadena_conexion.concetar_sql
cadena_sql = "select * from editorial where nombre_editorial like('%" &
nombre & "%')"
Dim vAdapter As New SqlDataAdapter(cadena_sql, conectar)
conectar.Open()
vAdapter.Fill(sel_ds_editorial, "sel_editorial")
conectar.Close()
Catch ex As Exception
MessageBox.Show(ex.ToString, "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error)
End Try
Return sel_ds_editorial
End Function
End Class
DataSet
En el BibliotecaDataSet creamos en los TableAdapter las consultas siguientes:
--Cree un reporte que contenga la sucursal con mayor número de libros
select top 1 sucursal_biblioteca.nombre_sucursal, sucursal_biblioteca.direccion,
SUM(copias_libros.num_copias) as "Total"
from sucursal_biblioteca, copias_libros
where sucursal_biblioteca.id_sucursal = copias_libros.id_sucursal
group by sucursal_biblioteca.nombre_sucursal, sucursal_biblioteca.direccion
order by Total desc
--Cree un reporte con los 10 libros más prestados
select top 10 libro.id_libro, libro.titulo, SUM(prestamo.id_libro) as "Total_Prestamos"
from libro, prestamo
where libro.id_libro = prestamo.id_libro
group by libro.id_libro, libro.titulo
order by Total_Prestamos desc
--Cree un reporte que muestre los libros prestados y el respectivo total de prestamos por
día, agrupados por fecha
select prestamo.fecha_salida, COUNT(libro.titulo) as "Prestamos_Diarios"
from libro, prestamo
group by prestamo.fecha_salida
--Cree un formulario que permita filtrar bajo un rango de fechas los registros de la
tabla préstamos y muestre los resultados en un informe
create procedure rpt_prestamos_fecha
@fecha_inicio as datetime,
@fecha_fin as datetime
as
select libro.id_libro, libro.titulo, prestamo.fecha_salida
from libro, prestamo
where prestamo.fecha_salida between @fecha_inicio and @fecha_fin
go
execute rpt_prestamos_fecha '01/03/2009', '30/03/2009'
Reportes
Creamos los 4 archivos de Crystal Report de los 4 métodos ADO de los TableAdapter creados en el DataSet (Uno de ellos
es un procedimiento almacenado que filtra datos de las fechas)
Formularios de reportes
El código de los formularios que contienen los reportes es:
Cada formulario contiene un CrystalReportViewer
Reporte de sucursal que contiene el mayor número de libros
Public Class frmSucursal1
Private Sub frmSucursal1_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
Dim d_set As New bibliotecaDataSet
Dim rpt As New rpt_sucursal
Dim d_adapter As New
bibliotecaDataSetTableAdapters.sucursal_biblioteca1TableAdapter
Me.WindowState = FormWindowState.Maximized
d_adapter.Fill(d_set.sucursal_biblioteca1)
rpt.SetDataSource(d_set)
Me.CrystalReportViewer1.ReportSource = rpt
End Sub
End Class
Reporte de los 10 libros más prestados
Public Class frmLibrosPrestados
Private Sub frmLibrosPrestados_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
Me.WindowState = FormWindowState.Maximized
Dim d_set As New bibliotecaDataSet
Dim rpt As New rpt_LibrosPrestados
Dim d_adapter As New bibliotecaDataSetTableAdapters.LibrosPrestadosTableAdapter
d_adapter.Fill(d_set.LibrosPrestados)
rpt.SetDataSource(d_set)
Me.CrystalReportViewer1.ReportSource = rpt
End Sub
End Class
Reporte de préstamos agrupados por fechas
Public Class frmPrestamosLibro
Private Sub frmPrestamosLibro_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
Me.WindowState = FormWindowState.Maximized
Dim d_set As New bibliotecaDataSet
Dim rpt As New rpt_prestamosLibro
Dim d_adapter As New bibliotecaDataSetTableAdapters.PrestamoslibroTableAdapter
d_adapter.Fill(d_set.Prestamoslibro)
rpt.SetDataSource(d_set)
Me.CrystalReportViewer1.ReportSource = rpt
End Sub
End Class
Reporte con filtros por fechas (Procedimiento almacenado)
Imports CrystalDecisions.Shared
Imports CrystalDecisions.CrystalReports.Engine
Public Class frmPrestamosFecha
Private Sub btnGenerar_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnGenerar.Click
Dim d_set As New bibliotecaDataSet
Dim rpt As New rpt_PrestamosFecha
Dim d_adapter As New
bibliotecaDataSetTableAdapters.rpt_prestamos_fechaTableAdapter
Dim fecha_ini, fecha_fin As Date
Try
fecha_ini = CType(Me.txtFechaIni.Text, Date)
fecha_fin = CType(Me.txtFechaFin.Text, Date)
d_adapter.Fill(d_set.rpt_prestamos_fecha, fecha_ini, fecha_fin)
rpt.SetDataSource(d_set)
Me.CrystalReportViewer1.ReportSource = rpt
Catch ex As Exception
MessageBox.Show(ex.ToString, "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error)
End Try
End Sub
End Class