Sistema de ventas

Computación e Informática V Ciclo – Willeams Medina – acreditación_ies@hotmail.com – tlf. 972893759

Sistema de Ventas

Form1.vb

Public Class Form1

Private Sub MantenimientoDeClientesToolStripMenuItem_Click(ByVal sender As
System.Object, ByVal e As System.EventArgs) Handles
MantenimientoDeClientesToolStripMenuItem.Click
Dim frm As New FRMCLIENTES
frm.MdiParent = Me
frm.Show()
End Sub

Private Sub MantenimientoDeProdutosToolStripMenuItem_Click(ByVal sender As
MantenimientoDeProdutosToolStripMenuItem.Click
Dim frm As New frmPoductos
frm.MdiParent = Me
frm.Show()
End Sub

Private Sub CascadaToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles CascadaToolStripMenuItem.Click
Me.LayoutMdi(MdiLayout.Cascade)
End Sub

Private Sub MosaicoHorizontalToolStripMenuItem_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles MosaicoHorizontalToolStripMenuItem.Click
Me.LayoutMdi(MdiLayout.TileHorizontal)
End Sub

Private Sub MosaicoVerticalToolStripMenuItem_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles MosaicoVerticalToolStripMenuItem.Click
Me.LayoutMdi(MdiLayout.TileVertical)

End Sub

Private Sub AcercaDeToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles AcercaDeToolStripMenuItem.Click
Dim frm As New Acercade
frm.MdiParent = Me
frm.Show()
End Sub

Private Sub SalirToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles SalirToolStripMenuItem.Click
If MessageBox.Show("¿Desea Salir de la aplicación?", "Systms Test",
MessageBoxButtons.YesNo, MessageBoxIcon.Information) = Windows.Forms.DialogResult.Yes
Then
Me.Close()
End If
End Sub

Private Sub MantenimientoDeBoletasToolStripMenuItem_Click(ByVal sender As
MantenimientoDeBoletasToolStripMenuItem.Click
Dim frm As New frmBoleta
frm.MdiParent = Me
frm.Show()
End Sub

Private Sub CalculadoraToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e
As System.EventArgs) Handles CalculadoraToolStripMenuItem.Click
Dim proceso As New Process
proceso.StartInfo.FileName = "calc.exe"
proceso.StartInfo.Arguments = ""
proceso.Start()
End Sub

Private Sub WordToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles WordToolStripMenuItem.Click
proceso.StartInfo.FileName = "winword.exe"
proceso.Start()
End Sub

Private Sub EcxelToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles EcxelToolStripMenuItem.Click
proceso.StartInfo.FileName = "excel.exe"
proceso.Start()
End Sub

Private Sub UsuariosToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles UsuariosToolStripMenuItem.Click
Dim frm As New frmUsuarios
frm.MdiParent = Me
frm.Show()
End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles MyBase.Load
Dim myfrm As New frmAcceso
myfrm.ShowDialog()
End Sub

Private Sub ApellidoClienteToolStripMenuItem_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles ApellidoClienteToolStripMenuItem.Click
Dim frm As New frmBoletas_Clientes
frm.MdiParent = Me

frm.Show()
End Sub

Private Sub FechasToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles FechasToolStripMenuItem.Click
Dim frm As New frmBuscarxfecha
frm.MdiParent = Me
frm.Show()
End Sub
End Class

Frmclientes.vb
Imports System.Data.SqlClient
Public Class FRMCLIENTES
Private oDataAdapter As SqlDataAdapter
Private oDataTable As DataTable
Private oConnection As SqlConnection
Private oDataRow As DataRow
Private oCommandBuilder As SqlCommandBuilder
Private PosFilaAct As Integer
Private vNuevo As Boolean
Private Sub Activa_Desactiva(ByVal sw As Boolean)
gbdatos.Enabled = Not sw
Me.btnGuardar.Enabled = Not sw
Me.btnNuevo.Enabled = sw
Me.btnEditar.Enabled = sw
Me.btnEliminar.Enabled = sw
Me.btnImprimir.Enabled = sw
Me.dtgclientes.Enabled = sw
End Sub
Private Sub CargarDatos()
Try
Me.oDataRow = Me.oDataTable.Rows(Me.PosFilaAct)
Me.txtid.Text = oDataRow("ID_CLIENTE")
Me.txtnom.Text = oDataRow("NOM_CLIENTE")
Me.txtape.Text = oDataRow("APE_CIENTE")

Me.txtdni.Text = oDataRow("DNI_CLIENTE")
Me.txtruc.Text = oDataRow("RUC_CLIENTE")
Me.txttele.Text = oDataRow("TELEFONO_CLIENTE")
Me.txtdomicilio.Text = oDataRow("DOMICILIO_CLIENTE")
Catch ex As Exception
MessageBox.Show("Error" & Chr(13) & "No existen registros", "Cargar datos",
MessageBoxButtons.OK, MessageBoxIcon.Information)

End Try
End Sub

Private Sub FRMCLIENTES_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
oConnection = New
SqlConnection("server=.SQLEXPRESS;database=DB_VENTAS;integrated security=yes")
oCommandBuilder = New SqlCommandBuilder(Me.oDataAdapter)

oDataAdapter = New SqlDataAdapter("Select * From TB_CLIENTES", oConnection)
oDataTable = New DataTable
oDataAdapter.Fill(oDataTable)
dtgclientes.DataSource = oDataTable
Me.dtgclientes.AllowUserToAddRows = False
Me.dtgclientes.AllowUserToDeleteRows = False
Me.CargarDatos()
Me.Activa_Desactiva(True)
End Sub

Private Sub btnNuevo_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnNuevo.Click
For Each objControl As Control In Me.gbdatos.Controls
If TypeOf objControl Is TextBox Then
objControl.Text = ""
End If
Next

vNuevo = True
Activa_Desactiva(False)
Me.txtnom.Focus()
End Sub

Private Sub btnGuardar_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnGuardar.Click
Try
If (TypeOf objControl Is TextBox) And objControl.Text = "" _
And Not objControl.Name = "txtid" Then
MessageBox.Show("Error faltan datos en" & Chr(13) & _
objControl.Name, "Guardar", MessageBoxButtons.OK,
MessageBoxIcon.Information)
Exit Sub
End If
Next

If MessageBox.Show("¿Desea guardar registro actual?", "Guardar",
MessageBoxButtons.YesNo, MessageBoxIcon.Question) = Windows.Forms.DialogResult.Yes Then
If vNuevo Then
oDataRow = Me.oDataTable.NewRow
End If

'oDataRow("ID_CLIENTE") = Me.txtid.Text
oDataRow("NOM_CLIENTE") = Me.txtnom.Text
oDataRow("APE_CIENTE") = Me.txtape.Text
oDataRow("DNI_CLIENTE") = Me.txtdni.Text
oDataRow("RUC_CLIENTE") = Me.txtruc.Text
oDataRow("TELEFONO_CLIENTE") = Me.txttele.Text
oDataRow("DOMICILIO_CLIENTE") = Me.txtdomicilio.Text


If vNuevo Then
Me.oDataTable.Rows.Add(Me.oDataRow)
Me.PosFilaAct = (Me.oDataTable.Rows.Count - 1)
End If

oCommandBuilder.DataAdapter = Me.oDataAdapter
Me.oDataAdapter.Update(Me.oDataTable)
Me.oDataTable.Clear()
Me.oDataAdapter.Fill(Me.oDataTable)
MessageBox.Show("Datos Guardados", "Guardar", MessageBoxButtons.OK,
Else
MessageBox.Show("No se guardó el registro", "Eliminar",
End If
Activa_Desactiva(True)
Me.CargarDatos()
MessageBox.Show("Error al intentar guardar registro" & Chr(13) & ex.Message,
"Guardar", MessageBoxButtons.OK, MessageBoxIcon.Information)

End Try
End Sub

Private Sub btnEditar_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnEditar.Click
MessageBox.Show("Proceda con la edición del registro actual", "Edición",
Me.Activa_Desactiva(False)
vNuevo = False
Me.txtnom.Focus()
End Sub

Private Sub btnEliminar_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnEliminar.Click
Try
If Me.oDataTable.Rows.Count > 0 Then
If MessageBox.Show("¿Desea eliminar registro actual?", "Eliminar",
Dim strDeleteSQL As String
Dim oSQLCommand As New SqlCommand
strDeleteSQL = "Delete From TB_CLIENTES where ID_CLIENTE =" &
CInt(Me.txtid.Text)
Me.oConnection.Open()
oSQLCommand.Connection = Me.oConnection
oSQLCommand.CommandText = strDeleteSQL
oSQLCommand.ExecuteNonQuery()
Me.oConnection.Close()
Me.PosFilaAct = IIf(Me.PosFilaAct > 0, Me.PosFilaAct - 1, 0)
Me.oDataAdapter = New SqlDataAdapter("Select * From TB_CLIENTES",
Me.oConnection)
Me.CargarDatos()
End If
Else
MessageBox.Show("No existen registros para eliminar", "Eliminar",
End If
MessageBox.Show("Error para eliminar", "Error", MessageBoxButtons.OK,
End Try
End Sub

Private Sub dtgclientes_CellClick(ByVal sender As Object, ByVal e As
System.Windows.Forms.DataGridViewCellEventArgs) Handles dtgclientes.CellClick
If Not Me.dtgclientes.Item(0, Me.dtgclientes.CurrentRow.Index).Value Is
DBNull.Value Then
Me.PosFilaAct = Me.dtgclientes.CurrentRow.Index
Me.CargarDatos()
End If
End Sub

Private Sub txtnom_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtnom.KeyPress
sololetras(e)
If e.KeyChar() = Chr(13) Then
Me.txtape.Focus()
End If
End Sub

Private Sub txtape_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtape.KeyPress
sololetras(e)
Me.txtdni.Focus()
End If
End Sub

Private Sub txtdni_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtdni.KeyPress
solonumeros(e)
Me.txtruc.Focus()
End If
End Sub

Private Sub txtruc_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtruc.KeyPress
solonumeros(e)
Me.txttele.Focus()
End If
End Sub

Private Sub txttele_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txttele.KeyPress
solonumeros(e)
Me.txtdomicilio.Focus()
End If
End Sub

Private Sub txtdomicilio_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtdomicilio.KeyPress
sololetras(e)
Me.btnGuardar.Focus()
End If
End Sub

Private Sub txtbape_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtbape.KeyPress
sololetras(e)
End Sub

Private Sub txtbape_TextChanged(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles txtbape.TextChanged
Try
If txtbape.Text <> "" Then

Me.oDataAdapter = New SqlDataAdapter("Select * From TB_CLIENTES where
APE_CIENTE like'" _
& txtbape.Text & "%'", Me.oConnection)
Else
Me.oConnection)
End If
MessageBox.Show("Error al buscar" & Chr(13) & ex.Message)
End Try
End Sub

Private Sub txtbruc_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtbruc.KeyPress
solonumeros(e)
End Sub

Private Sub txtbruc_TextChanged(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles txtbruc.TextChanged
Try
If txtbruc.Text <> "" Then
RUC_CLIENTE like'" _
& txtbruc.Text & "%'", Me.oConnection)
Else
Me.oConnection)
End If
End Try
End Sub

Private Sub txtbdni_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtbdni.KeyPress
solonumeros(e)
End Sub

Private Sub txtbdni_TextChanged(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles txtbdni.TextChanged
Try
If txtbdni.Text <> "" Then
DNI_CLIENTE like'" _
& txtbdni.Text & "%'", Me.oConnection)
Else
Me.oConnection)
End If
End Try
End Sub

Private Sub btnImprimir_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnImprimir.Click
Dim myreport As New rtpclientes
myreport.SetDataSource(Me.oDataTable)
Dim myfrom As New frm_Reporte_clientes
myfrom.crvclientes.ReportSource = myreport
myfrom.WindowState = FormWindowState.Maximized
myfrom.ShowDialog()

End Sub
End Class

Frmproductos.vb
Public Class frmPoductos
gbDatos.Enabled = Not sw
Me.dtgprductos.Enabled = sw
End Sub
Try
Me.txtid.Text = oDataRow("ID_PRODUCTO")
Me.txtnom.Text = oDataRow("NOM_PRODUCTO")
Me.txtpc.Text = oDataRow("PRE_COMPRA_PRODUCTO")
Me.txtpv.Text = oDataRow("PRE_VENTA_PRODUCTO")
Me.txtstock.Text = oDataRow("STOCK_PRDUCTO")
Me.dtpfa.Text = oDataRow("FECHA_ACTUALIZACION_PRODUCTO")



End Try
End Sub

Private Sub frmPoductos_Load(ByVal sender As System.Object, ByVal e As
oConnection = New

oDataAdapter = New SqlDataAdapter("Select * From TB_PRODUCTOS", oConnection)
dtgprductos.DataSource = oDataTable
Me.dtgprductos.AllowUserToAddRows = False
Me.dtgprductos.AllowUserToDeleteRows = False
Me.CargarDatos()
End Sub

End If
Next

vNuevo = True
Me.txtnom.Focus()
End Sub

Try
And Not objControl.Name = "txtid" Then
Exit Sub
End If
Next

If vNuevo Then
End If

'oDataRow("ID_PRODUCTO") = Me.txtid.Text
oDataRow("NOM_PRODUCTO") = Me.txtnom.Text
oDataRow("PRE_COMPRA_PRODUCTO") = Me.txtpc.Text
oDataRow("PRE_VENTA_PRODUCTO") = Me.txtpv.Text
oDataRow("STOCK_PRDUCTO") = Me.txtstock.Text
oDataRow("FECHA_ACTUALIZACION_PRODUCTO") = Me.dtpfa.Text

If vNuevo Then

End If

Else
End If
Me.CargarDatos()

End Try
End Sub

vNuevo = False
Me.txtnom.Focus()
End Sub

Try
strDeleteSQL = "Delete From TB_PRODUCTOS where ID_PRODUCTO =" &
CInt(Me.txtid.Text)
Me.oDataAdapter = New SqlDataAdapter("Select * From TB_PRODUCTOS",
Me.oConnection)
Me.CargarDatos()
End If
Else
End If
End Try
End Sub

Private Sub dtgprductos_CellClick(ByVal sender As Object, ByVal e As
System.Windows.Forms.DataGridViewCellEventArgs) Handles dtgprductos.CellClick
If Not Me.dtgprductos.Item(0, Me.dtgprductos.CurrentRow.Index).Value Is
DBNull.Value Then
Me.PosFilaAct = Me.dtgprductos.CurrentRow.Index

Me.CargarDatos()
End If
End Sub

Private Sub txtbnom_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtbnom.KeyPress
sololetras(e)
End Sub

Private Sub txtbnom_TextChanged(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles txtbnom.TextChanged
Try
If txtbnom.Text <> "" Then
Me.oDataAdapter = New SqlDataAdapter("Select * From TB_PRODUCTOS where
NOM_PRODUCTO like'" _
& txtbnom.Text & "%'", Me.oConnection)
Else
Me.oConnection)
End If
End Try
End Sub

Private Sub txtbstock_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtbstock.KeyPress
solonumeros(e)
End Sub

Private Sub txtbstock_TextChanged(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles txtbstock.TextChanged
Try
If txtbstock.Text <> "" Then
Me.oDataAdapter = New SqlDataAdapter("Select * From TB_PRODUCTOS where
STOCK_PRDUCTO like'" _
& txtbstock.Text & "%'", Me.oConnection)
Else
Me.oConnection)
End If
End Try
End Sub

sololetras(e)
Me.txtpc.Focus()
End If
End Sub

Private Sub txtpc_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtpc.KeyPress
solonumeros(e)
Me.txtpv.Focus()
End If
End Sub

Private Sub txtpv_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtpv.KeyPress
solonumeros(e)
Me.txtstock.Focus()
End If
End Sub

Private Sub txtstock_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtstock.KeyPress
solonumeros(e)
Me.dtpfa.Focus()
End If
End Sub

Private Sub dtpfa_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles dtpfa.KeyPress

End If
End Sub

Dim myreport As New rptproductos
Dim myfrom As New frmReporte_Productos
myfrom.cvproductos.ReportSource = myreport
myfrom.ShowDialog()
End Sub
End Class

acercade.vb

Public NotInheritable Class Acercade

Private Sub OKButton_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles OKButton.Click
Me.Close()
End Sub

End Class

frmBoleta.vb
Public Class frmBoleta
Private oconnection As SqlConnection
Private oDTDBtmp As DataTable 'tabla temporal para manejar items
Private Sub Activar_Desactivar(ByVal sw As Boolean)

Me.btnBCliente.Enabled = sw
Me.btnAgregarItem.Enabled = sw
Me.btnEliminarItem.Enabled = sw
Me.btnGuardarBoleta.Enabled = sw
Me.btnNBoleta.Enabled = Not sw
End Sub
Private Sub Crear_Tabla_temporal()
oDTDBtmp = New DataTable("tbDetalle_Boleta_Temporal") 'crear tabla temporal
Me.dtgDetalle_Boleta.DataSource = oDTDBtmp 'asignar el datasource del tdgddetalle
With oDTDBtmp.Columns
.Add("ID_Producto", Type.GetType("System.Int32"))
.Add("Cantidad", Type.GetType("System.Int32"))
.Add("Descripcion", Type.GetType("System.String"))

.Add("Precio", Type.GetType("System.Single"))
.Add("Importe", Type.GetType("System.Single"))

End With
Me.dtgDetalle_Boleta.Columns(0).Visible = False
oDTDBtmp.PrimaryKey = New DataColumn() {oDTDBtmp.Columns("ID_Producto")}
End Sub

Private Sub frmBoleta_Load(ByVal sender As System.Object, ByVal e As
Try
Me.oconnection = New
SqlConnection("server=.sqlexpress;database=DB_VENTAS;Integrated security=true")
Me.Crear_Tabla_temporal()

Me.dtpfecha.Value = Now
Activar_Desactivar(False)
MessageBox.Show("Error al cargar datos" & Chr(13) & ex.Message, "Error", _
MessageBoxButtons.OK, MessageBoxIcon.Error)

End Try
Me.Activar_Desactivar(False)
End Sub

Private Sub btnBCliente_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnBCliente.Click
Dim myfrm As New frmAgregar_Clientes
Dim respuesta As Windows.Forms.DialogResult = myfrm.ShowDialog
If respuesta = Windows.Forms.DialogResult.OK Then
If myfrm.dtgClientes.RowCount > 0 Then
Dim filaAct As Integer = myfrm.dtgClientes.CurrentRow.Index
Me.txtid.Text = myfrm.dtgClientes.Item(0, filaAct).Value
Me.txtnom.Text = myfrm.dtgClientes.Item(1, filaAct).Value
Me.txtape.Text = myfrm.dtgClientes.Item(2, filaAct).Value
Me.txtdomicilio.Text = myfrm.dtgClientes.Item(6, filaAct).Value
Me.txtdni.Text = myfrm.dtgClientes.Item(5, filaAct).Value
Else
MessageBox.Show("No existe Cliente Seleccionado", "Error",

End If
End If
Dim objcontrol As Control
Dim txttexbox As TextBox
' for each para que no puedan cambiar sus datos que sea solo lectura
For Each objcontrol In Me.gbCliente.Controls
If TypeOf objcontrol Is TextBox Then
txttexbox = objcontrol
txttexbox.ReadOnly = True
End If
Next objcontrol

End Sub
Private Sub Calcular_Totales()
'actualizar totales
Dim vtotal As Single
vtotal = IIf(oDTDBtmp.Compute("Sum(Importe)", Nothing) Is DBNull.Value, 0,
oDTDBtmp.Compute("Sum(Importe)", Nothing))
Me.txtTotal_Boleta.Text = Format(vtotal, "###0.00")
Me.txtSon.Text = Letras(Val(Me.txtTotal_Boleta.Text)).ToUpper
End Sub

Private Sub btnNBoleta_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnNBoleta.Click
Dim oDTBoleta As DataTable
Dim oDABoleta As SqlDataAdapter

Activar_Desactivar(True)
For Each objcontrol In Me.gbCliente.Controls
objcontrol.Text = ""
End If
Next
Me.txtidboleta.Text = ""
Me.txtTotal_Boleta.Text = ""
Me.txtSon.Text = ""

Me.Crear_Tabla_temporal()

oDTBoleta = New DataTable("TB_BOLETAS")
oDABoleta = New SqlDataAdapter("select * from TB_BOLETAS", oconnection)
oDABoleta.Fill(oDTBoleta)
Dim N_Boleta As String
If oDTBoleta.Rows.Count > 0 Then
Dim oDatarow = oDTBoleta.Rows(oDTBoleta.Rows.Count - 1)
N_Boleta = oDatarow(0)
Else
N_Boleta = 0
End If
Me.txtidboleta.Text = Format(CInt(N_Boleta) + 1, "0000000000")
End Sub

Private Sub btnAgregarItem_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnAgregarItem.Click
Dim myform As New frmAgregar_Producto
Dim respuesta As Windows.Forms.DialogResult = myform.ShowDialog
Try
If respuesta = Windows.Forms.DialogResult.OK Then
Dim odatarow As DataRow
odatarow = oDTDBtmp.NewRow
odatarow(0) = myform.txtId_Producto.Text
odatarow(1) = myform.nudCantidad.Text
odatarow(2) = myform.txtDescripcion_Pro.Text
odatarow(3) = myform.txtPrecio.Text
odatarow(4) = myform.txtImporte.Text
oDTDBtmp.Rows.Add(odatarow)
oDTDBtmp.AcceptChanges()
Me.Calcular_Totales()
End If
MessageBox.Show("Error al agregar item" & ex.Message, "Error",
End Try
myform.Dispose()
Dim txttexbox As TextBox
' for each para que no puedan cambiar sus datos que sea solo lectura
For Each objcontrol In Me.Panel2.Controls
txttexbox = objcontrol
txttexbox.ReadOnly = True
End If
Next objcontrol
End Sub

Private Sub btnEliminarItem_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnEliminarItem.Click
Try

If oDTDBtmp.Rows.Count > 0 Then
Dim oDataRow As DataRow
oDataRow = oDTDBtmp.Rows(Me.dtgDetalle_Boleta.CurrentRow.Index)
oDTDBtmp.Rows.Remove(oDataRow)

Else
MessageBox.Show("No existen items ", "error", MessageBoxButtons.OK,
MessageBoxIcon.Error)
End If
MessageBox.Show("error al eliminar item " & Chr(13) & ex.Message, "error",
End Try
End Sub

Private Sub btnGuardarBoleta_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnGuardarBoleta.Click
Dim oDADetalleBoleta, oDABoleta As SqlDataAdapter
Dim oDTDetalleBoleta, oDTBoleta As DataTable

Dim oCommandBuilder As New SqlCommandBuilder
If MessageBox.Show("¿Desea guardar registro actual ?", "guardar ",
'----------------------------------------------------------------------------
--------------------
If Me.txtid.Text = "" Then
MessageBox.Show("Debe seleccionar un cliente ", "error",
Me.btnBCliente_Click(Nothing, Nothing)
Exit Sub
End If

If Me.oDTDBtmp.Rows.Count <= 0 Then
MessageBox.Show("no se agregaron productos", "Guardar",
Me.btnAgregarItem_Click(Nothing, Nothing)
Exit Sub
End If
oDTBoleta = New DataTable("TB_BOLETAS")
oDABoleta = New SqlDataAdapter("Select * from TB_BOLETAS", Me.oconnection)
oDABoleta.Fill(oDTBoleta)
Dim oDataRowBoleta As DataRow
oDataRowBoleta = oDTBoleta.NewRow
oDataRowBoleta("ID_BOLETA") = Me.txtidboleta.Text
oDataRowBoleta("ID_CLIENTE") = CInt(Me.txtid.Text)
oDataRowBoleta("FECHA_BOLETA") = Now
oDataRowBoleta("TOTAL_BOLETA") = Me.txtTotal_Boleta.Text
oDTBoleta.Rows.Add(oDataRowBoleta)

Dim oDataRowDetalleBoleta As DataRow
oDTDetalleBoleta = New DataTable("TB_DT_BOLETAS")
oDADetalleBoleta = New SqlDataAdapter("select * FROM TB_DT_BOLETAS",
oconnection)
oDADetalleBoleta.Fill(oDTDetalleBoleta)

If Me.dtgDetalle_Boleta.RowCount > 0 Then
Dim i As Integer
For i = 0 To Me.dtgDetalle_Boleta.RowCount - 1
oDataRowDetalleBoleta = oDTDetalleBoleta.NewRow
oDataRowDetalleBoleta("ID_BOLETA") = Me.txtidboleta.Text
oDataRowDetalleBoleta("ID_PRODUCTO") = Me.dtgDetalle_Boleta.Item(0,
i).Value
oDataRowDetalleBoleta("PRECIO_DT_BOLETA") =
Me.dtgDetalle_Boleta.Item(1, i).Value
oDataRowDetalleBoleta("CANTIDAD_DT_BOLETA") =
oDataRowDetalleBoleta("REPORTE_DT_BOLETA") =
oDTDetalleBoleta.Rows.Add(oDataRowDetalleBoleta)
Next

Try
oCommandBuilder.DataAdapter = oDABoleta
oDABoleta.Update(oDTBoleta)
oCommandBuilder.DataAdapter = oDADetalleBoleta
oDADetalleBoleta.Update(oDTDetalleBoleta)
MessageBox.Show("Registro Guardado", "Guardar", MessageBoxButtons.OK,

MessageBox.Show("Error al guardar" & Chr(13) & ex.Message, "Error",
Me.btnNBoleta_Click(Nothing, Nothing)
Exit Sub
Finally
Me.oDTDBtmp.Dispose()
End Try
End If
Else
MessageBox.Show("Registro no guardado", "Guardar", MessageBoxButtons.OK,
Me.btnNBoleta_Click(Nothing, Nothing)
End If
Activar_Desactivar(False)

End Sub

Private Sub dtgDetalle_Boleta_CellValueChanged(ByVal sender As Object, ByVal e As
System.Windows.Forms.DataGridViewCellEventArgs) Handles
dtgDetalle_Boleta.CellValueChanged
Dim vFilaActual As Integer = Me.dtgDetalle_Boleta.CurrentRow.Index
With Me.dtgDetalle_Boleta
.Item(4, vFilaActual).Value = .Item(1, vFilaActual).Value * .Item(3,
vFilaActual).Value

End With
End Sub
End Class


frmUsuarios.vb

Public Class frmUsuarios
gbdatos.Enabled = Not sw
Me.dtgusuarios.Enabled = sw
End Sub

Try
Me.txtId.Text = oDataRow("cod_usuario")
Me.txtnom.Text = oDataRow("Nom_usuario")
Me.txtcont.Text = "***************"
Me.txtconfir.Text = "***************"

End Try
End Sub

Private Sub frmUsuarios_Load(ByVal sender As System.Object, ByVal e As
oConnection = New

oDataAdapter = New SqlDataAdapter("Select * From TB_USUARIOS", oConnection)
dtgusuarios.DataSource = oDataTable
Me.CargarDatos()
End Sub

End If
Next
MessageBox.Show("Ingrese datos", "Nuevo", MessageBoxButtons.OK,
vNuevo = True
Me.txtnom.Focus()
End Sub

Try
And Not objControl.Name = "txtId" Then
Exit Sub
End If
Next
If Me.txtcont.Text <> Me.txtconfir.Text Then
MessageBox.Show("Contraseña no coincide", "Error", MessageBoxButtons.OK,
Exit Sub
End If
If vNuevo Then
End If

'oDataRow("cod_usuario") = Me.txtId.Text
oDataRow("Nom_usuario") = Me.txtnom.Text

oDataRow("contraseña_usuario") = ENCRIPTAR(Me.txtcont.Text)

If vNuevo Then
End If

Else
End If
Me.CargarDatos()
Me.CargarDatos()
End Try
End Sub

vNuevo = False
Me.txtnom.Focus()
End Sub

Try
strDeleteSQL = "Delete From TB_USUARIOS where cod_usuario =" &
CInt(Me.txtId.Text)
Me.oDataAdapter = New SqlDataAdapter("Select * TB_USUARIOS",
Me.oConnection)
Me.CargarDatos()
End If
Else
End If
End Try
End Sub


Dim myreport As New rptUsuarios
Dim myfrom As New frmReporte_Usuarios
myfrom.crvUsuarios.ReportSource = myreport
myfrom.ShowDialog()
End Sub

Private Sub dtgusuarios_CellClick(ByVal sender As Object, ByVal e As
System.Windows.Forms.DataGridViewCellEventArgs) Handles dtgusuarios.CellClick
If Not Me.dtgusuarios.Item(0, Me.dtgusuarios.CurrentRow.Index).Value Is
DBNull.Value Then
Me.PosFilaAct = Me.dtgusuarios.CurrentRow.Index
Me.CargarDatos()
End If
End Sub

sololetras(e)
Me.txtcont.Focus()
End If
End Sub

Private Sub txtcont_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtcont.KeyPress

Me.txtconfir.Focus()
End If
End Sub

Private Sub txtconfir_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtconfir.KeyPress
sololetras(e)
End If
End Sub

Private Sub txtbUsuario_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtbUsuario.KeyPress
sololetras(e)
End Sub

Private Sub txtbUsuario_TextChanged(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles txtbUsuario.TextChanged
Try
If txtbUsuario.Text <> "" Then
Me.oDataAdapter = New SqlDataAdapter("Select * From TB_USUARIOS where
Nom_usuario like'" _
& txtbUsuario.Text & "%'", Me.oConnection)
Else
Me.oDataAdapter = New SqlDataAdapter("Select * From TB_USUARIOS",
Me.oConnection)
End If
End Try
End Sub
End Class


frmAcceso.vb
Public Class frmAcceso
Private oDAUsiario As SqlDataAdapter
Private oDTUsuario As DataTable
Private oCN As SqlConnection
Private oDRUsuario As DataRow
Private vAcceso As Boolean

Private Sub frmAcceso_FormClosed(ByVal sender As Object, ByVal e As
System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
If Not Me.vAcceso Then
Me.Dispose()
Application.Exit()
End If
End Sub
Private Sub frmAcceso_Load(ByVal sender As System.Object, ByVal e As
Me.oCN = New SqlConnection
Me.oCN.ConnectionString = "server=.SQLEXPRESS;database=DB_VENTAS;integrated
security=yes"
Me.oDAUsiario = New SqlDataAdapter("select * from TB_USUARIOS", Me.oCN)
Me.oDTUsuario = New DataTable
Me.oDAUsiario.Fill(Me.oDTUsuario)
Me.cbousuario.DataSource = Me.oDTUsuario
Me.cbousuario.DisplayMember = "Nom_usuario"
Me.cbousuario.ValueMember = "cod_usuario"
Me.txtcontraseña.Focus()

End Sub

Private Sub btnaceptar_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnaceptar.Click
If cbousuario.Text.Length = 0 Then
MessageBox.Show("Debe seleccionar el usuario")
cbousuario.Focus()
Exit Sub
End If
If txtcontraseña.Text.Length = 0 Then
MessageBox.Show("Debe ingresar contraseña")
txtcontraseña.Focus()
Exit Sub
End If
Dim odatarow = Me.oDTUsuario.Rows(Me.cbousuario.SelectedIndex)
If ENCRIPTAR(Me.txtcontraseña.Text) = odatarow("contraseña_usuario") Then

MessageBox.Show("Bienvenido Administrador", "Systems Test",
Me.Close()
Me.vAcceso = True
Else
MessageBox.Show("Verifique su cuenta", "Systems Test", MessageBoxButtons.OK,
End If
End Sub

Private Sub btnCancelar_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnCancelar.Click
Dim x As Integer
x = MessageBox.Show("Desea detener la aplicación", "Mensaje",
MessageBoxButtons.YesNo, MessageBoxIcon.Question)
If x = 6 Then
Me.Close()
End If
End Sub

Private Sub txtcontraseña_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtcontraseña.KeyPress
Me.btnaceptar.Focus()
End If
End Sub
End Class

frmBoletas_Clientes.vb

Public Class frmBoletas_Clientes
Dim oCN As SqlConnection
Dim oDT As DataTable
Dim oDA As SqlDataAdapter
Dim Cadena_Sql As String

Private Sub frmBoletas_Clientes_Load(ByVal sender As System.Object, ByVal e As
Try
Cadena_Sql = "SELECT TB_BOLETAS.ID_BOLETA, TB_CLIENTES.ID_CLIENTE,
TB_CLIENTES.NOM_CLIENTE, TB_CLIENTES.APE_CIENTE, TB_BOLETAS.FECHA_BOLETA,
TB_BOLETAS.TOTAL_BOLETA FROM TB_BOLETAS INNER JOIN TB_CLIENTES ON TB_BOLETAS.ID_CLIENTE
= TB_CLIENTES.ID_CLIENTE "
Me.oCN = New SqlConnection("server=.sqlexpress;Database=DB_VENTAS;Integrated
security=true")
oDT = New DataTable
oDA = New SqlDataAdapter(Cadena_Sql, oCN)
oDA.Fill(oDT)
Me.dtgBoletas.DataSource = oDT
Me.txtBuscar_cliente_TextChanged(Nothing, Nothing)
MessageBox.Show("Error al Conectar" & Chr(13) & ex.Message, "Error",

End Try
End Sub

Private Sub txtBuscar_cliente_TextChanged(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles txtBuscar_cliente.TextChanged

Try
Dim Vtotal As Single
Dim filter As String = "APE_CIENTE like'" & _
Me.txtBuscar_cliente.Text & "%'"
Me.oDT.DefaultView.RowFilter = filter
'================================================
Vtotal = IIf(oDT.Compute("Sum(TOTAL_BOLETA)", filter) Is DBNull.Value, 0,
oDT.Compute("Sum(TOTAL_BOLETA)", filter))
Me.txtTotal.Text = Format(Vtotal, "###0.00")
'=================================================
txtBuscar_cliente.Focus()
End Try
End Sub

End Class


frmBuscarFecha.vb

Public Class frmBuscarxfecha
Dim oDT As DataTable
Dim oDA As SqlDataAdapter
Dim oCN As SqlConnection
Dim cadena_Sql As String

Private Sub frmBuscarxfecha_Load(ByVal sender As System.Object, ByVal e As
Try
cadena_Sql = "SELECT TB_BOLETAS.ID_BOLETA, TB_CLIENTES.ID_CLIENTE,
TB_CLIENTES.NOM_CLIENTE, TB_CLIENTES.APE_CIENTE, TB_BOLETAS.FECHA_BOLETA,
TB_BOLETAS.TOTAL_BOLETA FROM TB_BOLETAS INNER JOIN TB_CLIENTES ON TB_BOLETAS.ID_CLIENTE
= TB_CLIENTES.ID_CLIENTE"
Me.oCN = New SqlConnection("server=.sqlexpress;Database=DB_VENTAS;Integrated
security=true")
oDT = New DataTable
oDA = New SqlDataAdapter(cadena_Sql, oCN)
oDA.Fill(oDT)
Me.dtgboletas.DataSource = oDT
Me.btnC_Click(Nothing, Nothing)

End Try

End Sub

Private Sub btnC_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles btnC.Click
'Dim fecha As Date
'Dim feini As String
' Dim fefin As String
'Dim filter As String = "TOTAL_BOLETA = 13/01/2010"

'feini = Me.dtpF1.Value.Date.ToString

'fefin = Me.dtpF2.Value.Date.ToString
'filter = fecha.Day & "/" & fecha.Month & "/" & fecha.Year
'Dim vTotal As Single
'filter = "TOTAL_BOLETA >= 13/01/2001 and TOTAL_BOLETA <= 14/01/2001"

'vTotal = IIf(oDT.Compute("Sum(TOTAL_BOLETA)", filter) Is DBNull.Value, 0,
oDT.Compute("Sum(TOTAL_BOLETA)", filter))
'Me.txttotal.Text = Format(vTotal, "###0.00")
Try

Dim vTotal As Single
'Dim filtro As String = "WHERE Fecha like '" &
Trim(dtpDesde.Value.Date.ToString.Substring(0, 10)) & "'"
Dim filtro As String = "fecha_BOLETA >= '" &
Trim(dtpF1.Value.Date.ToString.Substring(0, 10)) & "' and " & "fecha_BOLETA <= '" &
Trim(dtpF2.Value.Date.ToString.Substring(0, 10)) & "'"

Me.oDT.DefaultView.RowFilter = filtro
vTotal = IIf(oDT.Compute("SUM(TOTAL_BOLETA)", filtro) Is _
DBNull.Value, 0, oDT.Compute("SUM(TOTAL_BOLETA)", filtro))
Me.txttotal.Text = Format(vTotal, "###0.00")

MessageBox.Show("error al buscar" & Chr(13) & ex.Message, _
"error", MessageBoxButtons.OK, MessageBoxIcon.Error)
End Try

End Sub

Private Sub btnS_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles btnS.Click
If MessageBox.Show("¿Desea salir?", "Sistema", MessageBoxButtons.YesNo,
MessageBoxIcon.Question) = Windows.Forms.DialogResult.Yes Then
Me.Close()
End If
End Sub

Private Sub btnI_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles btnI.Click
Dim myreport As New rptBoletas_Fechas
myreport.SetDataSource(Me.oDT.DefaultView)
Dim myfrom As New frmReporte_BoletasxFechas
myfrom.crvBoletas_Fechas.ReportSource = myreport
myfrom.ShowDialog()
End Sub
End Class

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