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The Report form provides the code needed to preview and print reports by a category or a date range The form displays the preview in a label The font for the label is set to a fixed-width font to make it easier to line up the columns of information In the General Declarations of the form, you will find these two lines of code: Option Explicit Private MyConnection As New ADODBConnection The first tells the compiler that you will declare your variables: Option Explicit The other declares a Connection object that you will use throughout this form: Private MyConnection As New ADODBConnection The form has a single user-defined procedure The function sizes a string to a specific width It is used to size the data to the width of the column that the data is in Public Function SizeIt(String2Size As String, TheLength As Integer) As String If Len(String2Size) >= TheLength Then SizeIt = Left(String2Size, TheLength) Else Do Until Len(String2Size) = TheLength String2Size = String2Size & " " Loop SizeIt = String2Size End If End Function The function requires two parameters, the string to size and the length that the string is to be changed to The function returns the sized string: Public Function SizeIt(String2Size As String, TheLength As Integer) As String You first check to see whether the string to modify is too long: If Len(String2Size) >= TheLength Then In that case, you merely return the portion of the string up to the size that the string is to be: SizeIt = Left(String2Size, TheLength) Otherwise, you enter a loop that will run until the string is of the size desired: Do Until Len(String2Size) = TheLength Pad the string with a space: String2Size = String2Size & " " and check the length again: Loop After the loop, you return the sized string:
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SizeIt = String2Size When the form first loads, the Load event populates the Category combo box Private Sub Form_Load() Dim RSAllCategories As ADODBRecordset MyConnectionConnectionString = "driver={SQL Server};" _ & "server=MyServer;uid=" & SQLUserName _ & ";pwd=" & SQLPassword & ";" _ & "database=C4MoneyManager" MyConnectionOpen Set RSAllCategories = MyConnectionExecute("Exec GetAllCategories") Do Until RSAllCategoriesEOF cmbCategoryAddItem RSAllCategories("CategoryName") cmbCategoryItemData(cmbCategoryNewIndex) = _ RSAllCategories("CategoryID") RSAllCategoriesMoveNext Loop End Sub The procedure will need a Recordset object to do that: Dim RSAllCategories As ADODBRecordset But you must first set up and connect to your back-end database: MyConnectionConnectionString = "driver={SQL Server};" _ & "server=MyServer;uid=" & SQLUserName _ & ";pwd=" & SQLPassword & ";" _ & "database=C4MoneyManager" MyConnectionOpen Then you can retrieve the category records: Set RSAllCategories = MyConnectionExecute("Exec GetAllCategories") You enter a loop so that you can process each record: Do Until RSAllCategoriesEOF Each record is added to the Category combo box: cmbCategoryAddItem RSAllCategories("CategoryName") cmbCategoryItemData(cmbCategoryNewIndex) = _ RSAllCategories("CategoryID") before moving on to process the next record: RSAllCategoriesMoveNext Loop The next code block fires when the form is closed Private Sub Form_Unload(Cancel As Integer) frmMenuShow Set frmReport = Nothing End Sub You display the Menu form: frmMenuShow and then release the resources being used by this form: Set frmReport = Nothing When the Preview button is clicked, the label is set to contain the contents of the report Private Sub cmdPreview_Click() Dim RSReportContents As ADODBRecordset Dim TheTotal As Currency lblPreviewCaption = "Date & "Description " _ " _
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& "Category & "Amount" & vbNewLine
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lblPreviewCaption = lblPreviewCaption & "---& "----------& "-------& "------" If optCategoryValue = True Then Set RSReportContents = MyConnectionExecute _ ("Exec GetAllActivityInCategory " _ & cmbCategoryItemData(cmbCategoryListIndex)) Else Set RSReportContents = MyConnectionExecute _ ("Exec GetAllActivityInDateRange '" _ & txtFromText & "', '" _ & txtToText & "'") End If Do Until RSReportContentsEOF lblPreviewCaption = lblPreviewCaption & vbNewLine _ & SizeIt(RSReportContents("TransactionDate"), 14) _ & SizeIt(RSReportContents("TransDescription"), 42) _ & SizeIt(RSReportContents("CategoryName"), 30) _ & FormatCurrency(RSReportContents("Amount")) TheTotal = TheTotal + RSReportContents("Amount") RSReportContentsMoveNext Loop
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lblPreviewCaption = lblPreviewCaption & vbNewLine & vbNewLine _ & "Total: " & FormatCurrency(TheTotal) End Sub The procedure will need a Recordset object: Dim RSReportContents As ADODBRecordset as well as a variable to store the total dollar amount of the records retrieved: Dim TheTotal As Currency The first row of the report contains the column headers: lblPreviewCaption = "Date & "Description & "Category & "Amount" & vbNewLine The second row contains underlines for those column headers: lblPreviewCaption = lblPreviewCaption & "---& "----------& "-------& "------" If the Category option is selected, the user wants to display a report based on the category selected: If optCategoryValue = True Then In that case, you retrieve records through the GetAllActivityInCategory stored procedure: Set RSReportContents = MyConnectionExecute _ ("Exec GetAllActivityInCategory " _ & cmbCategoryItemData(cmbCategoryListIndex)) Otherwise, you retrieve records through the GetAllActivityInDateRange stored procedure: Set RSReportContents = MyConnectionExecute _ ("Exec GetAllActivityInDateRange '" _ & txtFromText & "', '" _ " _ " _ " _ " _ " _ " _
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& txtToText & "'") Either way, after the If statement, you enter a loop so that you can process each of the records that matched the user's criteria: Do Until RSReportContentsEOF Each record retrieved is placed on its own line in the preview label Each field is sized according to the size of that column: lblPreviewCaption = lblPreviewCaption & vbNewLine _ & SizeIt(RSReportContents("TransactionDate"), 14) _ & SizeIt(RSReportContents("TransDescription"), 42) _ & SizeIt(RSReportContents("CategoryName"), 30) _ & FormatCurrency(RSReportContents("Amount")) Add the amount in the current record to your tally: TheTotal = TheTotal + RSReportContents("Amount") and move on to process the next record: RSReportContentsMoveNext After the loop, you add another line to the label for the amount total: lblPreviewCaption = lblPreviewCaption & vbNewLine & vbNewLine _ & "Total: " & FormatCurrency(TheTotal) The other procedure writes the report to the printer when the Print button is clicked Private Sub cmdPrint_Click() PrinterFont = "Courier New" PrinterFontSize = 10 PrinterPrint lblPreviewCaption PrinterEndDoc End Sub Set the printer font to a fixed-width font to make the columns line up: PrinterFont = "Courier New" and also set the size so that a row on the label will fit on the paper: PrinterFontSize = 10 Then send the text in the label to the default printer: PrinterPrint lblPreviewCaption and print the report: PrinterEndDoc
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5: Personal Information Manager (PIM)
In This :
C5SQLObjectssql Contactstxt ContactPhonestxt Reminderstxt 5PIMvbp In this chapter, you will look at a solution that allows the user to manage their contacts and reminders The solution uses a SQL Server database back end that is connected to through a Visual Basic 6 front end
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