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Products.vb
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Products.vb
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Public Class frmProducts
'MENU-STRIP----------------------------------------------------------------------------------------------------------
Private Sub mnuCustomers_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuCustomers.Click
frmCustomers.Show() 'Customers form
MyBase.Close()
End Sub
Private Sub mnuOrders_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuOrders.Click
frmOrders.Show() 'Orders form
MyBase.Close()
End Sub
Private Sub mnuDeliveries_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuDeliveries.Click
frmDeliveries.Show() 'Deliveries form
MyBase.Close()
End Sub
Private Sub mnuPassword_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuPassword.Click
frmChangePass.Show() 'Change Password form
MyBase.Close()
End Sub
Private Sub mnuControl_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuControl.Click
frmControl.Show() 'Control form
MyBase.Close()
End Sub
Private Sub mnuExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuExit.Click
End 'Exits the program
End Sub
'/MENU-STRIP---------------------------------------------------------------------------------------------------------
'HOTKEYS-------------------------------------------------------------------------------------------------------------
Private Sub frmProducts_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
If e.Control And e.KeyCode = Keys.Enter Then 'Ctrl+Enter goes to Control
mnuControl.PerformClick()
End If
If e.Control And e.KeyCode = Keys.C Then 'Ctrl+C goes to Customers
mnuCustomers.PerformClick()
End If
If e.Control And e.KeyCode = Keys.O Then 'Ctrl+O goes to Orders
mnuOrders.PerformClick()
End If
If e.Control And e.KeyCode = Keys.D Then 'Ctrl+D goes to Deliveries
frmDeliveries.URL = "http://maps.google.com/?ie=UTF8&ll=54.136696,-2.285156&spn=11.706707,42.84668&z=5"
mnuDeliveries.PerformClick()
End If
If e.Control And e.KeyCode = Keys.R Then 'Ctrl+R goes to Reset Password
mnuPassword.PerformClick()
End If
If e.Control And e.KeyCode = Keys.X Then 'Ctrl+X goes to Exit
mnuExit.PerformClick()
End If
'-Mouse Control via Keyboard
If e.Control And e.KeyCode = Keys.Left Then 'Ctrl+Left Moves Cursor Left
Cursor.Position = New Point(Cursor.Position.X - 10, Cursor.Position.Y)
End If
If e.Control And e.KeyCode = Keys.Right Then 'Ctrl+Right Moves Cursor Right
Cursor.Position = New Point(Cursor.Position.X + 10, Cursor.Position.Y)
End If
If e.Control And e.KeyCode = Keys.Up Then 'Ctrl+Up Moves Cursor Up
Cursor.Position = New Point(Cursor.Position.X, Cursor.Position.Y - 10)
End If
If e.Control And e.KeyCode = Keys.Down Then 'Ctrl+Down Moves Cursor Down
Cursor.Position = New Point(Cursor.Position.X, Cursor.Position.Y + 10)
End If
End Sub
'/HOTKEYS------------------------------------------------------------------------------------------------------------
'Record structure for Product File
Structure ProductType
<VBFixedString(10)> Dim ID As Integer
<VBFixedString(20)> Dim Name As String
<VBFixedString(20)> Dim Category As String
<VBFixedString(5)> Dim Price As Single
<VBFixedString(4)> Dim Stock As Integer
<VBFixedString(20)> Dim Supplier As String
End Structure
'Global Variables
Dim Product As ProductType
Dim ProductRecord(100) As ProductType 'Array ~ Max: 100
Dim ArraySize As Integer = 0
Dim ErrID As Boolean = False 'Validation Errors
Dim ErrName As Boolean = False
Dim ErrPrice As Boolean = False
Dim ErrStock As Boolean = False
Dim ErrSupplier As Boolean = False
Dim FileName As String
Dim NumberofRecords As Integer
Dim TableFormat As String = "{0,-12}{1,-22}{2,-6}{3,-22}"
Dim CurrentRec As Integer
Dim RecordNumber As Integer
Private Sub frmProducts_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Set ID
numID.Value = Product.ID + 1
'Set the File Name
FileName = frmLogin.Drive & "\Product.txt"
'Open the file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
'Check the number of records
NumberofRecords = LOF(1) / Len(Product)
'Close the file
FileClose(1)
If NumberofRecords > 0 Then
'Display first record
CurrentRec = 1
'Open the file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
FileGet(1, Product)
numID.Text = Trim(Product.ID)
txtName.Text = Trim(Product.Name)
cboCategory.Text = Trim(Product.Category)
txtPrice.Text = Trim(Product.Price)
numStock.Text = Trim(Product.Stock)
txtSupplier.Text = Trim(Product.Supplier)
'Close the file
FileClose()
End If
CurrentRec = 1
End Sub
Private Sub cmdAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdAdd.Click
Dim blnContinue As Boolean
Dim Duplicate As Boolean = False
Dim largestID As Integer = 0
'HIGHEST ID VALUE
'Open the file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
'Search the Product
Do While Not EOF(1)
FileGet(1, Product)
If Product.ID > largestID Then
largestID = Product.ID
End If
Loop
FileClose(1)
'/HIGHEST ID VALUE
If numID.Value = (largestID + 1) Then
If txtName.Text = "" Or cboCategory.Text = "" Or txtPrice.Text = "" Or _
numStock.Text = "" Or txtSupplier.Text = "" Then
MessageBox.Show("Input all fields", "Error", MessageBoxButtons.OK)
Else
blnContinue = True
End If
Else
MessageBox.Show("ID must be 1 more than the Number of Records (" & largestID & "), Change automatically?", "Error", MessageBoxButtons.OKCancel)
If vbOK Then
numID.Value = largestID + 1
End If
End If
Duplicate = False
If blnContinue = True Then
'Open the file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
'<------CHECK PRODUCT NOT ALREADY PRESENT----->
'Search the Product
Do While Duplicate = False And Not EOF(1)
FileGet(1, Product)
If (Trim(Product.Name) = txtName.Text) And (Trim(Product.Supplier) = txtSupplier.Text) Then
MessageBox.Show("Product already exists", "Message", MessageBoxButtons.OK)
Duplicate = True
Else
Duplicate = False
End If
Loop
FileClose(1)
'<-------------------/CHECK------------------->
If Not Duplicate = True Then
'Get the data from the form
Product.ID = numID.Text
Product.Name = txtName.Text
Product.Category = cboCategory.Text
Product.Price = txtPrice.Text
Product.Stock = numStock.Text
Product.Supplier = txtSupplier.Text
'Open the file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
'Write record to file
FilePut(1, Product, NumberofRecords + 1)
'Close the file
FileClose(1)
'Add 1 to the number of records
NumberofRecords = NumberofRecords + 1
'Clear the form
txtName.Text = ""
cboCategory.Text = ""
txtPrice.Text = ""
numStock.Value = 0
txtSupplier.Text = ""
numID.Value = numID.Value + 1
'Place cursor in Product Name text box
txtName.Focus()
End If
End If
End Sub
Private Sub cmdView_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdView.Click
'ARRAY
'Load Array
Dim NextRec As Integer = 1
Dim i As Integer = -1
' Read the Product records and add them to the array
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
Do While Not EOF(1)
i = i + 1
FileGet(1, Product, NextRec)
ProductRecord(i).ID = Trim(Product.ID)
ProductRecord(i).Name = Trim(Product.Name)
ProductRecord(i).Supplier = Trim(Product.Supplier)
ProductRecord(i).Stock = Trim(Product.Stock)
NextRec = NextRec + 1
Loop
FileClose(1)
ArraySize = i
'Sort Array
Dim TmpProduct As ProductType
For x = 0 To ArraySize - 1
For y = 0 To ArraySize - 1
If ProductRecord(y).Name > ProductRecord(y + 1).Name Then
TmpProduct = ProductRecord(y)
ProductRecord(y) = ProductRecord(y + 1)
ProductRecord(y + 1) = TmpProduct
End If
Next
Next
'View Array
lstProduct.Items.Clear()
'Headings
lstProduct.Items.Add(String.Format(TableFormat, "ID", "Name", "Stock", "Supplier"))
' Read through the array and add to the List box
For i = 0 To ArraySize
lstProduct.Items.Add(String.Format(TableFormat, ProductRecord(i).ID, ProductRecord(i).Name, ProductRecord(i).Stock, ProductRecord(i).Supplier))
Next
End Sub
Private Sub cmdNext_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdNext.Click
If CurrentRec < NumberofRecords Then
RecordNumber = CurrentRec + 1
'Open the file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
'Get record
FileGet(1, Product, RecordNumber)
'Display record
numID.Text = Trim(Product.ID)
txtName.Text = Trim(Product.Name)
cboCategory.Text = Trim(Product.Category)
txtPrice.Text = Trim(Product.Price)
numStock.Text = Trim(Product.Stock)
txtSupplier.Text = Trim(Product.Supplier)
'Close file
FileClose()
CurrentRec = CurrentRec + 1
End If
End Sub
Private Sub cmdPrevious_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdPrevious.Click
If CurrentRec > 1 Then
RecordNumber = CurrentRec - 1
'Open the file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
'Get record
FileGet(1, Product, RecordNumber)
'Display record
numID.Text = Trim(Product.ID)
txtName.Text = Trim(Product.Name)
cboCategory.Text = Trim(Product.Category)
txtPrice.Text = Trim(Product.Price)
numStock.Text = Trim(Product.Stock)
txtSupplier.Text = Trim(Product.Supplier)
'Close file
FileClose()
CurrentRec = RecordNumber
Else
RecordNumber = CurrentRec
End If
End Sub
Private Sub cmdFirst_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdFirst.Click
If NumberofRecords > 1 Then
'Display the first record
CurrentRec = 1
'Open the file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
'Get first record
FileGet(1, Product)
'Display record
numID.Text = Trim(Product.ID)
txtName.Text = Trim(Product.Name)
cboCategory.Text = Trim(Product.Category)
txtPrice.Text = Trim(Product.Price)
numStock.Text = Trim(Product.Stock)
txtSupplier.Text = Trim(Product.Supplier)
'Close file
FileClose()
End If
End Sub
Private Sub cmdLast_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdLast.Click
If NumberofRecords > 0 Then
'Display the last record
RecordNumber = NumberofRecords
'Open the file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
'Get last record
FileGet(1, Product, RecordNumber)
'Display record
numID.Text = Trim(Product.ID)
txtName.Text = Trim(Product.Name)
cboCategory.Text = Trim(Product.Category)
txtPrice.Text = Trim(Product.Price)
numStock.Text = Trim(Product.Stock)
txtSupplier.Text = Trim(Product.Supplier)
'Close file
FileClose()
CurrentRec = NumberofRecords
End If
End Sub
Private Sub cmdExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdExit.Click
End
End Sub
Private Sub cmdReset_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdReset.Click
Dim msg, title, style As String
Dim Response As MsgBoxResult
msg = "Do you want to reset this file?"
title = "Check"
style = MsgBoxStyle.YesNo
'Display message box
Response = MsgBox(msg, style, title)
'If yes delete
If Response = MsgBoxResult.Yes Then
'Delete the file
Kill(FileName)
'Set the file name
FileName = frmLogin.Drive & "\Product.txt"
'Open the file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
'Check the number of records
NumberofRecords = LOF(1) / Len(Product)
'Close the file
FileClose()
'Reset current record
CurrentRec = 1
End If
End Sub
Private Sub cmdClear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdClear.Click
numID.Value = NumberofRecords + 1
txtName.Text = ""
cboCategory.Text = ""
txtPrice.Text = ""
numStock.Value = 0
txtSupplier.Text = ""
txtName.Focus()
End Sub
Private Sub cmdSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdSave.Click
'Open the file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
'Get details from the form record
Product.ID = numID.Text
Product.Name = txtName.Text
Product.Category = cboCategory.Text
Product.Price = txtPrice.Text
Product.Stock = numStock.Text
Product.Supplier = txtSupplier.Text
'Save record
FilePut(1, Product, CurrentRec)
'Close file
FileClose(1)
MessageBox.Show("Product details saved.", "Message", MessageBoxButtons.OK)
End Sub
Private Sub cmdDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdDelete.Click
'Local Variables
Dim msg As String
Dim title As String
Dim style As MsgBoxStyle
Dim Response As MsgBoxResult
Dim TempFileName As String
Dim Number As String
msg = "Do you want to delete this record?"
title = "Check"
style = MsgBoxStyle.YesNo
'Display message box
Response = MsgBox(msg, style, title)
'If yes delete
If Response = MsgBoxResult.Yes Then
'Get record number
Number = numID.Text
'Set temporary file
TempFileName = frmLogin.Drive & "\Temp.txt"
'Open Product file
FileOpen(1, FileName, OpenMode.Random, , , Len(Product))
'Open temp file
FileOpen(2, TempFileName, OpenMode.Random, , , Len(Product))
Do While Not EOF(1)
FileGet(1, Product)
If Product.ID <> Number Then
FilePut(2, Product)
End If
Loop
'Close Product File
FileClose(1)
'Close Temp File
FileClose(2)
'Delete Product File
Kill(FileName)
'Rename Temp File as Product File
Rename(TempFileName, FileName)
'Previous Product
Call cmdPrevious_Click(sender, e)
End If
End Sub
Private Sub cmdPrint_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdPrint.Click
'Print
PrintPreviewDialog1.Document = PrintDocument1
PrintPreviewDialog1.ShowDialog()
End Sub
Private Sub PrintDocument1_PrintPage(ByVal sender As System.Object, ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage
Dim x, y, FontHeight As Integer
Dim MyFont As New Font("Calibri", 14, FontStyle.Regular)
'display variable
Dim DLine As String
'calc font height
FontHeight = MyFont.GetHeight(e.Graphics)
'set x and y
x = 50
y = 50
'print height
e.Graphics.DrawString("▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒", MyFont, Brushes.Black, x, y)
y = y + FontHeight
e.Graphics.DrawString("▒▒ Products ▒▒", MyFont, Brushes.Black, x, y)
y = y + FontHeight
e.Graphics.DrawString("▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒", MyFont, Brushes.Black, x, y)
y = y + FontHeight
'blank line
e.Graphics.DrawString("", MyFont, Brushes.Black, x, y)
y = y + FontHeight
'build the line to be printed
DLine = "Product Details:"
'print line
e.Graphics.DrawString(DLine, MyFont, Brushes.Black, x, y)
y = y + FontHeight
'build the line to be printed
DLine = "Product ID: " & numID.Text
'print line
e.Graphics.DrawString(DLine, MyFont, Brushes.Black, x, y)
y = y + FontHeight
'build the line to be printed
DLine = "Product Name: " & txtName.Text
'print line
e.Graphics.DrawString(DLine, MyFont, Brushes.Black, x, y)
y = y + FontHeight
'build the line to be printed
DLine = "Category: " & cboCategory.Text
'print line
e.Graphics.DrawString(DLine, MyFont, Brushes.Black, x, y)
y = y + FontHeight
'build the line to be printed
DLine = "Price: " & txtPrice.Text
'print line
e.Graphics.DrawString(DLine, MyFont, Brushes.Black, x, y)
y = y + FontHeight
'build the line to be printed
DLine = "Stock: " & numStock.Text
'print line
e.Graphics.DrawString(DLine, MyFont, Brushes.Black, x, y)
y = y + FontHeight
'build the line to be printed
DLine = "Supplier: " & txtSupplier.Text
'print line
e.Graphics.DrawString(DLine, MyFont, Brushes.Black, x, y)
y = y + FontHeight
End Sub
'VALIDATION
Private Sub numID_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles numID.Validating
'Validation
If Not IsNumeric(numID.Text) = True Or numID.Text = "" Then
ErrorProvider1.SetError(numID, "Must Contain a Number")
ErrID = True
cmdAdd.Hide()
cmdDelete.Hide()
cmdSave.Hide()
cmdPrint.Hide()
Else
ErrorProvider1.SetError(numID, "")
ErrID = False
If ErrID = False And ErrName = False And ErrPrice = False And _
ErrStock = False And ErrSupplier = False Then
cmdAdd.Show()
cmdDelete.Show()
cmdSave.Show()
cmdPrint.Show()
End If
End If
End Sub
Private Sub txtName_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles txtName.Validating
'Validation
If txtName.Text = "" Then
ErrorProvider1.SetError(txtName, "Must Contain Product Name")
ErrName = True
cmdAdd.Hide()
cmdDelete.Hide()
cmdSave.Hide()
cmdPrint.Hide()
Else
ErrorProvider1.SetError(txtName, "")
ErrName = False
If ErrID = False And ErrName = False And ErrPrice = False And _
ErrStock = False And ErrSupplier = False Then
cmdAdd.Show()
cmdDelete.Show()
cmdSave.Show()
cmdPrint.Show()
End If
End If
End Sub
Private Sub txtPrice_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles txtPrice.Validating
'Validation
If IsNumeric(txtPrice.Text) = False Or txtPrice.Text = "" Then
ErrorProvider1.SetError(txtPrice, "Must Contain a Number")
ErrPrice = True
cmdAdd.Hide()
cmdDelete.Hide()
cmdSave.Hide()
cmdPrint.Hide()
Else
ErrorProvider1.SetError(txtPrice, "")
ErrPrice = False
If ErrID = False And ErrName = False And ErrPrice = False And _
ErrStock = False And ErrSupplier = False Then
cmdAdd.Show()
cmdDelete.Show()
cmdSave.Show()
cmdPrint.Show()
End If
End If
End Sub
Private Sub numStock_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles numStock.Validating
'Validation
If Not IsNumeric(numStock.Text) = True Or numStock.Text = "" Then
ErrorProvider1.SetError(numStock, "Must Contain a Number")
ErrStock = True
cmdAdd.Hide()
cmdDelete.Hide()
cmdSave.Hide()
cmdPrint.Hide()
Else
ErrorProvider1.SetError(numStock, "")
ErrStock = False
If ErrID = False And ErrName = False And ErrPrice = False And _
ErrStock = False And ErrSupplier = False Then
cmdAdd.Show()
cmdDelete.Show()
cmdSave.Show()
cmdPrint.Show()
End If
End If
End Sub
Private Sub txtSupplier_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles txtSupplier.Validating
'Validation
If txtSupplier.Text = "" Then
ErrorProvider1.SetError(txtSupplier, "Must Contain Supplier Name")
ErrSupplier = True
cmdAdd.Hide()
cmdDelete.Hide()
cmdSave.Hide()
cmdPrint.Hide()
Else
ErrorProvider1.SetError(txtSupplier, "")
ErrSupplier = False
If ErrID = False And ErrName = False And ErrPrice = False And _
ErrStock = False And ErrSupplier = False Then
cmdAdd.Show()
cmdDelete.Show()
cmdSave.Show()
cmdPrint.Show()
End If
End If
End Sub
End Class