Aplicaciones en Visual Basic

VISUAL STUDIO 2013
PROYECTOS PARA TRABAJAR CON LOS
ALUMNOS
-----------------------------------------------------------------------
Lic. Ernesto Rubén Rodríguez Alvarado
----------------------------------------------------------------------PROYECTO 1. Usuario y Contraseña 2016
Código:
Public Class Form2
Private Sub CmdIngresar_Click(sender As
Object, e As EventArgs) Handles
--------------------------------------------CmdIngresar.Click
If TUsuario.Text = "Rodriguez" And
TContraseña.Text = "1234" Then
MsgBox("¿Deseas pasar al control del
sistema 2016?")
Form3.Show()
Else
MsgBox("Contraseña Incorrecta...
ingresar nuevamente")
End If
End Sub
---------------------------------------------Private Sub CmdPasar_Click(sender As Object,
e As EventArgs) Handles CmdPasar.Click
Form3.Show()
End Sub
End Class
-----------------------------------------------------------------------
PROYECTO 2: AREAS DE FIGURAS GEOMETRICAS
DEL ESPACIO
1. Diseño:
2. Código
Public Class Form1
----------------------------------------------Private Sub CmdArea_Click(sender As Object, e As
EventArgs) Handles CmdArea.Click
Dim area, h, r, pi As Single
pi = 3.1416
r = Val(TRadio.Text)
h = Val(TAltura.Text)
area = 2 * pi * r * (h + r)
TArea.Text = Str(area)
End Sub
-----------------------------------------------Private Sub CmdVolumen_Click(sender As Object, e
As EventArgs) Handles CmdVolumen.Click
Dim volumen, r, h As Single
r = Val(TRadio.Text)
h = Val(TAltura.Text)
volumen = Math.PI * (r * r) * h
TxtVolumen.Text = Str(volumen)
End Sub
--------------------------------------------Private Sub CmdNuevo_Click(sender As Object, e
As EventArgs) Handles CmdNuevo.Click
TAltura.Text = ""
TRadio.Text = ""
TxtVolumen.Text = ""
TArea.Text = ""
End Sub
---------------------------------------------Private Sub CmdPasar_Click(sender As Object, e
As EventArgs) Handles CmdPasar.Click
Form2.Show()
End Sub
End Class
PROYECTO Nº 3
TEMA: MI CALCULADORA
Lic. Rubén Rodríguez Alvarado
1. Diseño:
Private Sub Cmd7_Click(sender As Object, e As
EventArgs) Handles Cmd7.Click
Txt1.Text = Txt1.Text & 7
End Sub
--------------------------------------------Private Sub Cmd8_Click(sender As Object, e As
EventArgs) Handles Cmd8.Click
Txt1.Text = Txt1.Text & 8
End Sub
--------------------------------------------Private Sub Cmd9_Click(sender As Object, e As
EventArgs) Handles Cmd9.Click
Txt1.Text = Txt1.Text & 9
End Sub
--------------------------------------------Private Sub CmdNuevo_Click(sender As Object, e
As EventArgs) Handles CmdNuevo.Click
Txt1.Text = ""
End Sub
--------------------------------------------Private Sub CmdSuma_Click(sender As Object, e As
EventArgs) Handles CmdSuma.Click
OPE = 1
dato = Val(Txt1.Text)
Txt1.Clear()
End Sub
2. CÓDIGO
Private Sub CmdPotencia_Click(sender As Object,
e As EventArgs) Handles CmdPotencia.Click
Txt1.Text = Str$(Txt1.Text *
Val(Txt1.Text))
End Sub
--------------------------------------------Private Sub CmdIgual_Click(sender As Object, e
As EventArgs) Handles CmdIgual.Click
dato1 = Val(Txt1.Text)
If OPE = 1 Then
resultado = dato + dato1
Txt1.Text = resultado
Else
OPE = 2
resultado = dato - dato1
Txt1.Text = resultado
End If
End Sub
---------------------------------------------
Public Class Form1
Dim dato As Double
Dim dato1 As Double
Dim resultado As Double
Dim OPE As Double
--------------------------------------------Private Sub Cmd0_Click(sender As Object, e As
EventArgs) Handles Cmd0.Click
Txt1.Text = Txt1.Text & 0
End Sub
--------------------------------------------Private Sub Cmd1_Click(sender As Object, e As
EventArgs) Handles Cmd1.Click
Txt1.Text = Txt1.Text & 1
End Sub
--------------------------------------------Private Sub Cmd2_Click(sender As Object, e As
EventArgs) Handles Cmd2.Click
Txt1.Text = Txt1.Text & 2
End Sub
--------------------------------------------Private Sub Cmd3_Click(sender As Object, e As
EventArgs) Handles Cmd3.Click
Txt1.Text = Txt1.Text & 3
End Sub
--------------------------------------------Private Sub Cmd4_Click(sender As Object, e As
EventArgs) Handles Cmd4.Click
Txt1.Text = Txt1.Text & 4
End Sub
--------------------------------------------Private Sub Cmd5_Click(sender As Object, e As
EventArgs) Handles Cmd5.Click
Txt1.Text = Txt1.Text & 5
End Sub
--------------------------------------------Private Sub Cmd6_Click(sender As Object, e As
EventArgs) Handles Cmd6.Click
Txt1.Text = Txt1.Text & 6
End Sub
---------------------------------------------
Private Sub Timer1_Tick(sender As Object, e As
EventArgs) Handles Timer1.Tick
Label2.Text = TimeOfDay
End Sub
--------------------------------------------Private Sub CmdCubica_Click(sender As Object, e
As EventArgs) Handles CmdCubica.Click
Txt1.Text = Val(Txt1.Text) ^ (1 / 2)
End Sub
--------------------------------------------Private Sub Resta_Click(sender As Object, e As
EventArgs) Handles Resta.Click
OPE = 2
dato = Val(Txt1.Text)
Txt1.Clear()
End Sub
--------------------------------------------Private Sub Division_Click(sender As Object, e
As EventArgs) Handles Division.Click
OPE = 3
dato = Val(Txt1.Text)
Txt1.Clear()
End Sub
End Class
---------------------------------------------
3. EJECUCION
PROYECTO Nº
TEMA: USO DEL PROGRESSBAR
Lic. Rubén Rodríguez Alvarado
1. Diseño:
Label
Progressbar
Timer
2. Código
Public Class Form1
Public contador As Integer
Private Sub ProgressBar1_Click(sender As
Object, e As EventArgs) Handles
ProgressBar1.Click
ProgressBar1.Value = 0.0
ProgressBar1.Maximum = 100
Timer1.Interval = 40
Timer1.Enabled = True
End Sub
Private Sub Timer1_Tick(sender As Object,
e As EventArgs) Handles Timer1.Tick
If contador < 100 Then
ProgressBar1.Value = contador
contador = contador + 1
'Form2.Show()
Else
Timer1.Enabled = False
Form2.Show()
Me.Close()
End If
End Sub
End Class
3. Ejecutando
Amigos (as) les dejo diseño de aplicaciones en
Visual, para que ustedes desarrollen sus código, si
no pueden, les estare enviando la próxima
semana.
PROYECTO Nº 6
TEMA: MOVIMIENTO DE OBJETOS CON EL
TECLADO
Lic. Rubén Rodríguez Alvarado
1. Diseño:
PROYECTO Nº 7
TEMA: MOVIMIENTO DE OBJETOS CON EL
TECLADO
Lic. Rubén Rodríguez Alvarado
Contactos:
rurodriguez39@gmail.com
Cel. 997316147 (Peru – Lima – Callao)