The document contains code for a student information system. It includes code for checking if a student record already exists before adding a new one, code for deleting a student record, and code for saving changes made to the student records database.

1. 2014
Equipo-CODRED
15/05/2014
Conalep zacualpan 101
Elaboración y mantenimiento de sistemas de información
606
Anayenzi Perez Mena
Profesor:Ing.Agustin Hernández Delgado

2. Anayenzi Perez Mena-- 606
○Botón Consultar○
REM consultas
Dim mitabla As DataTable =
CODREP_________________________________DataSet.ALTAS
Dim cfilas As DataRowCollection = mitabla.Rows
Dim nuevafila As DataRow
Dim i As Integer
Dim n As String
n = ALTASBindingSource.Count()
Dim bandera As Boolean
bandera = True
Dim tamaño As Integer
tamaño = ALTASBindingSource.Count()
i = 1
If (tamaño = 0) Then
Else
Do
If (Trim(MATRICULATextBox.Text) = Trim(TextBox1.Text)) Then
bandera = False
Else
ALTASBindingSource.MoveNext()
i = i + 1
End If
Loop While (bandera = True And i <= tamaño)
End If
If (bandera = False) Then
MATRICULATextBox.Visible = False
NOMBRETextBox.Visible = False
APELLIDOTextBox.Visible = False

3. Anayenzi Perez Mena-- 606
ESPECIALIDADTextBox.Visible = False
GRUPOTextBox.Visible = False
TURNOTextBox.Visible = False
MATRICULATextBox.Enabled = False
NOMBRETextBox.Enabled = False
APELLIDOTextBox.Enabled = False
ESPECIALIDADTextBox.Enabled = False
GRUPOTextBox.Enabled = False
TURNOTextBox.Enabled = False
MsgBox("Ya existe")
TextBox1.Text = ""
TextBox1.Focus()
Else
MsgBox("Introduce datos")
nuevafila = mitabla.NewRow
cfilas.Add(nuevafila)
ALTASBindingSource.MoveLast()
MATRICULATextBox.Enabled = True
MATRICULATextBox.Visible = True
ID_ALTATextBox.Enabled = True
ID_ALTATextBox.Visible = True
NOMBRETextBox.Enabled = True
NOMBRETextBox.Visible = True
APELLIDOTextBox.Enabled = True
APELLIDOTextBox.Visible = True
ESPECIALIDADTextBox.Enabled = True
ESPECIALIDADTextBox.Visible = True
GRUPOTextBox.Enabled = True
GRUPOTextBox.Visible = True
GRUPOTextBox.Enabled = True
GRUPOTextBox.Visible = True
TURNOTextBox.Enabled = True
TURNOTextBox.Visible = True
nuevafila(1) = UCase(MATRICULATextBox.Text)
nuevafila(2) = UCase(ID_ALTATextBox.Text)
nuevafila(3) = UCase(TextBox1.Text)
nuevafila(4) = UCase(NOMBRETextBox.Text)
nuevafila(5) = UCase(APELLIDOTextBox.Text)
nuevafila(6) = UCase(ESPECIALIDADTextBox.Text)
nuevafila(7) = UCase(GRUPOTextBox.Text)
nuevafila(8) = UCase(TURNOTextBox.Text)
End If
End Sub

4. Anayenzi Perez Mena-- 606
○Botón eliminar○
Dim response As MsgBoxResult
Dim MSG As String
Dim TITULO As String
Dim ESTILO As MsgBoxStyle
Dim registroactual As DataRowView
ESTILO = MsgBoxStyle.YesNo
TITULO = "Borrando..."
MSG = " ¿Desea Borrar Los Datos.?"
Dim c1 As String
Dim c2 As String
Dim res As Boolean
Dim bandera As Boolean
bandera = True
Dim SI As Integer
SI = SI
Dim tam As Integer
tam = ALTASBindingSource.Count()
ALTASBindingSource.MoveFirst()
res = False
c1 = RTrim(TextBox1.Text)
c2 = RTrim(MATRICULATextBox.Text)
If (tam = 0) Then
MsgBox("tabla vacia")
Else
ALTASBindingSource.MoveFirst()
c1 = UCase(Trim(MATRICULATextBox.Text))
Do

5. Anayenzi Perez Mena-- 606
res = c1 Like c2
If (res = True) Then
bandera = False
Else
ALTASBindingSource.MoveNext()
c1 = UCase(Trim(MATRICULATextBox.Text))
SI += 1
End If
Loop While (bandera = True And SI <= tam)
End If
If (bandera = True) Then
MATRICULATextBox.Enabled = False
MATRICULATextBox.Visible = False
NOMBRETextBox.Enabled = False
NOMBRETextBox.Visible = False
APELLIDOTextBox.Enabled = False
APELLIDOTextBox.Visible = False
TURNOTextBox.Enabled = False
TURNOTextBox.Visible = False
GRUPOTextBox.Enabled = False
GRUPOTextBox.Visible = False
ESPECIALIDADTextBox.Enabled = False
ESPECIALIDADTextBox.Visible = False
TextBox1.Text = ""
TextBox1.Focus()
MsgBox("Alumno No Encontrado")
Else
MATRICULATextBox.Enabled = False
MATRICULATextBox.Visible = True
NOMBRETextBox.Enabled = False
NOMBRETextBox.Visible = True
APELLIDOTextBox.Enabled = False
APELLIDOTextBox.Visible = True
TURNOTextBox.Enabled = False
TURNOTextBox.Visible = True
GRUPOTextBox.Enabled = False
GRUPOTextBox.Visible = True
ESPECIALIDADTextBox.Enabled = False
ESPECIALIDADTextBox.Visible = True
TextBox1.Text = ""
TextBox1.Focus()
response = MsgBox(MSG, ESTILO, TITULO)
If (response = MsgBoxResult.Yes) Then
registroactual = ALTASBindingSource.Current
registroactual.Row.Delete()
Me.ALTASTableAdapter.Update(Me.CODREP_________________________________DataSet.ALTAS)
MsgBox("Se Borro EL Registro De la Tabla..")
MATRICULATextBox.Enabled = False
MATRICULATextBox.Visible = False
NOMBRETextBox.Enabled = False

6. Anayenzi Perez Mena-- 606
NOMBRETextBox.Visible = False
APELLIDOTextBox.Enabled = False
APELLIDOTextBox.Visible = False
TURNOTextBox.Enabled = False
TURNOTextBox.Visible = False
GRUPOTextBox.Enabled = False
GRUPOTextBox.Visible = False
ESPECIALIDADTextBox.Enabled = False
ESPECIALIDADTextBox.Visible = False
TextBox1.Text = ""
TextBox1.Focus()
Else
MATRICULATextBox.Enabled = False
MATRICULATextBox.Visible = False
NOMBRETextBox.Enabled = False
NOMBRETextBox.Visible = False
APELLIDOTextBox.Enabled = False
APELLIDOTextBox.Visible = False
TURNOTextBox.Enabled = False
TURNOTextBox.Visible = False
GRUPOTextBox.Enabled = False
GRUPOTextBox.Visible = False
ESPECIALIDADTextBox.Enabled = False
ESPECIALIDADTextBox.Visible = False
TextBox1.Text = ""
TextBox1.Focus()
MsgBox("NO SE HA BORRADO EL REGISTRO DE LA TABLA...")
End If
End If
End Sub
○Grabando Ahora○
If (CODREP_________________________________DataSet.HasChanges) Then
Me.Validate()
Me.ALTASBindingSource.EndEdit()
Me.ALTASTableAdapter.Update(Me.BaseCODREPDataSet.ALTAS)
MsgBox("Datos Grabando ahora")
TextBox1.Text = ""
TextBox1.Focus()
MATRICULATextBox.Enabled = False
NOMBRETextBox.Enabled = False
APELLIDOTextBox.Enabled = False
ESPECIALIDADTextBox.Enabled = False
GRUPOTextBox.Enabled = False
End If
End Sub