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Tercer trabajo de drapi 02
1. INTRODUCCIÓN
El presente trabajo se trata de elaborar un programa que permita ingresar datos personales
de una persona o más como nombres y apellidos, dirección, teléfono, email además consta
de 5 botones Nuevo, Guardar, Cancelar, Eliminar y Limpiar. Permitirá al estudiante en
programar en HTML y visual Basic a través con los diferentes código de programación de la
diversa gama que ofrece visual estudio 2012, además conocimiento básico en HTML para
ingresar título, imágenes. Consta de una principal llamada conexión y consta de 5 clases
para respectivo lugar y también de otros formularios. La diferencia del anterior es que
trabaja con base de datos y un académico.bak.
17. Código De Clases Visual Basic
Clase Conexión.vb
Imports System.Data.SqlClient
Module Module1
Public con As New SqlConnection
Public Const cadena As String = "Data Source=jhonysqlexpress;Initial
Catalog=Academico;integrated security=true"
End Module
Clase Alumno.vb
Imports System.Data.SqlClient
Public Class Alumno
Public Alu_codigo As String
Public Alu_ApeNom As String
Public Alu_Sexo As String
Public Alu_Direccion As String
Public Alu_Telefono As String
Public Alu_Email As String
Dim z As String
Public cadena As String
Public Sub Grabar_Alumno()
Dim cmdgrabar As SqlCommand
Dim sql As String = "insert into Alumnos values('" + Alu_codigo +
"','" + Alu_ApeNom + "','" + Alu_Sexo + "','" + Alu_Direccion + "','" +
Alu_Telefono + "','" + Alu_Email + "')"
Try
con = New SqlConnection(cadena)
con.Open()
cmdgrabar = New SqlCommand(sql, con)
z = cmdgrabar.ExecuteScalar()
cmdgrabar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, z)
End Try
End Sub
Public Sub Modificar_Alumno()
Dim cmdmodificar As SqlCommand
Dim sql As String = "update Alumnos set Alu_ApeNom='" + Alu_ApeNom
+ "',Alu_Sexo='" + Alu_Sexo + "',Alu_Dirección='" + Alu_Direccion +
"',Alu_Telefono='" + Alu_Telefono + "',Alu_email='" + Alu_Email + "' where
Alu_Codigo='" + Alu_codigo + "'"
Try
con = New SqlConnection(cadena)
con.Open()
cmdmodificar = New SqlCommand(sql, con)
18. cmdmodificar.ExecuteNonQuery()
cmdmodificar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, "Error")
End Try
End Sub
Public Sub Eliminar_Alumno()
Dim cmdmodificar As SqlCommand
Dim sql As String = "delete from Alumnos where Alu_Codigo='" +
Alu_codigo + "'"
Try
con = New SqlConnection(cadena)
con.Open()
cmdmodificar = New SqlCommand(sql, con)
cmdmodificar.ExecuteNonQuery()
cmdmodificar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, "Error")
End Try
End Sub
Public Function Mostrar_Alumno()
Mostrar_Alumno = New DataTable
Dim damostrar As New SqlDataAdapter("select * from Alumnos", con)
damostrar.Fill(Mostrar_Alumno)
End Function
End Class
19. Clase Escuela.vb
Imports System.Data.SqlClient
Public Class Escuela
Public esc_codigo As String
Public esc_Nombre As String
Public fac_codigo As String
Dim z As String
Public cadena As String
Public Sub Grabar_Escuela()
Dim cmdgrabar As SqlCommand
Dim sql As String = "insert into Escuela values('" + esc_codigo +
"','" + esc_Nombre + "','" + fac_codigo + "')"
Try
con = New SqlConnection(cadena)
con.Open()
cmdgrabar = New SqlCommand(sql, con)
z = cmdgrabar.ExecuteScalar()
cmdgrabar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, z)
End Try
End Sub
Public Sub Modificar_Escuela()
Dim cmdmodificar As SqlCommand
Dim sql As String = "update Escuela set esc_nombre='" + esc_Nombre
+ "',Fac_codigo='" + fac_codigo + "' where esc_Codigo='" + esc_codigo + "'"
Try
con = New SqlConnection(cadena)
con.Open()
cmdmodificar = New SqlCommand(sql, con)
cmdmodificar.ExecuteNonQuery()
cmdmodificar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, "Error")
End Try
End Sub
Public Sub Eliminar_Escuela()
Dim cmdmodificar As SqlCommand
Dim sql As String = "delete from Escuela where esc_Codigo='" +
esc_codigo + "'"
Try
con = New SqlConnection(cadena)
con.Open()
cmdmodificar = New SqlCommand(sql, con)
cmdmodificar.ExecuteNonQuery()
cmdmodificar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, "Error")
End Try
20. End Sub
Public Function Mostrar_Escuela()
Mostrar_Escuela = New DataTable
Dim damostrar As New SqlDataAdapter("select * from escuela", con)
damostrar.Fill(Mostrar_Escuela)
End Function
End Class
Clase Facultad.vb
Imports System.Data.SqlClient
Public Class Facultad
Public fac_codigo As String
Public fac_Nombre As String
Dim z As String
Public cadena As String
Public Sub Grabar_Facultad()
Dim cmdgrabar As SqlCommand
Dim sql As String = "insert into Facultades values('" + fac_codigo
+ "','" + fac_Nombre + "')"
Try
con = New SqlConnection(cadena)
con.Open()
cmdgrabar = New SqlCommand(sql, con)
z = cmdgrabar.ExecuteScalar()
cmdgrabar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, z)
End Try
End Sub
Public Sub Modificar_Facultad()
Dim cmdmodificar As SqlCommand
Dim sql As String = "update Facultades set fac_nombre='" +
fac_Nombre + "' WHERE Fac_codigo='"
Try
con = New SqlConnection(cadena)
con.Open()
cmdmodificar = New SqlCommand(sql, con)
cmdmodificar.ExecuteNonQuery()
cmdmodificar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, "Error")
End Try
End Sub
Public Sub Eliminar_Facultad()
Dim cmdmodificar As SqlCommand
Dim sql As String = "delete from Facultades where fac_Codigo='" +
fac_codigo + "'"
21. Try
con = New SqlConnection(cadena)
con.Open()
cmdmodificar = New SqlCommand(sql, con)
cmdmodificar.ExecuteNonQuery()
cmdmodificar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, "Error")
End Try
End Sub
Public Function Mostrar_Facultad()
Mostrar_Facultad = New DataTable
Dim damostrar As New SqlDataAdapter("select * from Facultades",
con)
damostrar.Fill(Mostrar_Facultad)
End Function
End Class
Clase Matricula.vb
Imports System.Data.SqlClient
Public Class Matricula
Public mat_numero As String
Public mat_semestre As String
Public mat_fecha As String
Public esc_codigo As String
Public alu_codigo As String
Public ciclo As String
Dim z As String
Public cadena As String
Public Sub Grabar_Matricula()
Dim cmdgrabar As SqlCommand
Dim sql As String = "insert into
Matricula(mat_numero,mat_fecha,mat_semestre,alu_codigo,esc_codigo,ciclo)
values('" + mat_numero + "',CONVERT (date, SYSDATETIME()),'" + mat_semestre
+ "','" + alu_codigo + "','" + esc_codigo + "','" + ciclo + "');select
scope_identity()"
Try
con = New SqlConnection(cadena)
con.Open()
cmdgrabar = New SqlCommand(sql, con)
z = cmdgrabar.ExecuteScalar()
cmdgrabar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, z)
End Try
End Sub
Public Sub Modificar_Matricula()
Dim cmdmodificar As SqlCommand
Dim sql As String = "update Matricula set mat_semestre='" +
mat_semestre + "',mat_fecha=CONVERT (date, SYSDATETIME()), esc_codigo='" +
22. esc_codigo + "',alu_codigo='" + alu_codigo + "',ciclo='" + ciclo + "' where
mat_numero='" + mat_numero + "'"
Try
con = New SqlConnection(cadena)
con.Open()
cmdmodificar = New SqlCommand(sql, con)
cmdmodificar.ExecuteNonQuery()
cmdmodificar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, "Error")
End Try
End Sub
Public Sub Eliminar_Matricula()
Dim cmdmodificar As SqlCommand
Dim sql As String = "delete from Matricula where Mat_Numero='" +
mat_numero + "'"
Try
con = New SqlConnection(cadena)
con.Open()
cmdmodificar = New SqlCommand(sql, con)
cmdmodificar.ExecuteNonQuery()
cmdmodificar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, "Error")
End Try
End Sub
Public Function Mostrar_Matricula()
Mostrar_Matricula = New DataTable
Dim damostrar As New SqlDataAdapter("select * from matriculas",
con)
damostrar.Fill(Mostrar_Matricula)
End Function
End Class
Clase Sugerencia.vb
Imports System.Data.SqlClient
Public Class Sugerencia
Public sug_numero As String
Public sug_descripcion As String
Dim z As String
Public cadena As String
Public Sub Grabar_sugerencia()
Dim cmdgrabar As SqlCommand
Dim sql As String = "insert into sugerencia values('" + sug_numero
+ "','" + sug_descripcion + "');select scope_identity()"
Try
con = New SqlConnection(cadena)
con.Open()
cmdgrabar = New SqlCommand(sql, con)
z = cmdgrabar.ExecuteScalar()
cmdgrabar.Dispose()
23. con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, z)
End Try
End Sub
Public Sub Modificar_sugerencia()
Dim cmdmodificar As SqlCommand
Dim sql As String = "update sugerencia set sug_descripcion='" +
sug_descripcion + "' WHERE sug_numero='" + sug_numero + "'"
Try
con = New SqlConnection(cadena)
con.Open()
cmdmodificar = New SqlCommand(sql, con)
cmdmodificar.ExecuteNonQuery()
cmdmodificar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, "Error")
End Try
End Sub
Public Sub Eliminar_sugerencia()
Dim cmdmodificar As SqlCommand
Dim sql As String = "delete from sugerencia where sug_numero='" +
sug_numero + "'"
Try
con = New SqlConnection(cadena)
con.Open()
cmdmodificar = New SqlCommand(sql, con)
cmdmodificar.ExecuteNonQuery()
cmdmodificar.Dispose()
con.Close()
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.OkOnly, "Error")
End Try
End Sub
Public Function Mostrar_sugerencia()
Mostrar_sugerencia = New DataTable
Dim damostrar As New SqlDataAdapter("select * from sugerencia",
con)
damostrar.Fill(Mostrar_sugerencia)
End Function
End Class
24. Diseño De Cada Formulario
Diseño Principal Default.aspx
Diseño Alumnos.aspx
Diseño Escuela.apsx
Diseño Facultad.aspx
Diseño Matricula.aspx
Diseño Sugerencias.aspx