Reports & Queries - Source : www.pcsoft-windev-webdev.com

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* The order for printing the Start of document, Page header, Page footer and End of document blocks can bemodified in the "Options" tab of the report description ("Report description" from the popup menu of thereport).Reminder: If the destination of the print is an HTML file or an XML file, the Page header and Page footerblocks are generated once only.For more details about:• the processes associated with the blocks, see “Processes of the report blocks”, page 68.• the processes associated with the controls, see “Processes of the report controls”, page 88.• the different types of blocks, see “The different types of blocks”, page 63.• the sort procedures, see “Sort procedure”, page 138.15.3 Processes associated with the reportThe following processes are associated with the reports (order of appearance in the code editor):• Opening• Reading the data•Filter•ClosingThese processes are run when printing the report.15.3.1 "Opening" processThe "Opening" process is run when starting the report print.Use examplesThis process is used to:• declare the global variables of the report.• modify the report bounds with ..MinValue and ..MaxValue.• initialize the passwords of the data files if necessary.• configure the print destination with iPreview or iDestination.• pass parameters to the query linked to the report (iInitReportQuery).• retrieve the parameters passed to the report.• change the data source of the report.Password of the source file of the reportIf the source data file of the report is password protected, this password must be specified before openingthe data file (via HPass for example). If the data file was not opened before printing the report, the passwordcan be specified in the "Opening" process of the report.Initialize the variablesWhen printing a report from the print preview, the report is automatically re-run when:• the user changes printer.• the user clicks one of the buttons found in the toolbar (print in PDF or HTML mode, in an email ...).In this case, the data printed in the report can differ from the data displayed in the preview.The variables used by the report should be initialized in the"Report opening" process rather than in the codeof the button that starts the print.136Part 1: Report editor
15.3.2 "Reading data" processThe "Reading data" process is run when browsing the records to print (in the print loop), once the record isread.Use examplesThis process is used to:• perform block substitutions (as the next record to print is known).• select records.• perform specific calculations.Note: This code returns True if there are still records to print and False if there is no other record to print.<strong>Reports</strong> based on a text fileFor the reports based on a text file (with programmed read operation), the "Reading data" process is used toread the records found in the text file in order to print them.15.3.3 "Filter" processThis process is run:• when the data source is initialized (for the reports based on a data file, a view or a memory zone)• in the print loop, once the record is read (for the reports based on a query or on a table).This process is used to filter the records that must be displayed in the report.Use examplesThis process is used to:• select records.• perform advanced calculations (subtotal, ...) for the reports based on data files, views or memoryzones.Using the "Filter" processIf this process contains code lines, these code lines must return a value:•Cancel to stop reading the records (and to stop the print).•True to specify that the record corresponds to the filter and that it must be printed.•False to specify that the record does not correspond to the filter and that it must not be printed.15.3.4 "Closing" processThis process is run when the report print is ended, just before closing the report. This process must containno print function.Use examplesThis process is used to:• find out the status of the current print (iReportPrintingStatus).•open a dialog box.Part 1: Report editor 137
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WinDev 19 - WebDev 19 - WinDev Mobi
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PART 2 - QUERY EDITOR121. INTRODUCT
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REPORT EDITOR - TABLE OF CONTENTS1.
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5.4 Parameters and print options of
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11.3 Specific features of secondary
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1. INTRODUCTION1.1 What is a report
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The diagrams below present a simple
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1.2.2 Differences between the stand
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1.3 Main interface of the report ed
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1.4 A menu shaped like a ribbonWinD
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Run the test of the current reportF
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2.2 Creating a report2.2.1 Overview
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• Label report:Reading the data s
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•Table report:Reading the data so
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Use example• Printing an organize
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- specify the page number of the pa
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• Programming the reading of the
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2.2.6 Skin templateIf the project i
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2.4.3 Directory of the data files u
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The button bar of the print preview
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3. DATA SOURCES OF A REPORT3.1 Over
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Report based on an embedded queryTh
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To run the test of a report based o
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3.8 Report based on an Organizer co
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Once the report based on a text fil
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4.2.2 Display options in the print
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To save the current report, you can
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4.4.2 Including a form in a reportC
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The mouse or the keyboard can be us
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5. REPORT BLOCKS5.1 OverviewA print
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• End of document block• Iterat
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Note: The characteristics of a bloc
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5.6.1 Processes of the report block
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6. CONTROLS OF A REPORT6.1 The diff
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Transforming a "Static" control int
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Multilingual imagesIf your applicat
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Example:Date of the day when the re
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Example:To define the item linked t
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Note: The text displayed in the con
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Example: To make several controls i
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Method 2: (both reports must be dis
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Page 155 and 156: QUERY EDITOR - TABLE OF CONTENTS1.
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This description window includes th
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Item onto which the actions will be
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Used to perform or cancel the sort
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To modify a "calculated item" in th
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3.3.3 Operations that can be perfor
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4. Select (if necessary) "I want to
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Conditional AND operatorConditional
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3.3.9 Keeping (or not) the duplicat
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To enable the system for automatic
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4.RUNNING THE TEST OF A QUERY AND U
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4. Validate. The records from the q
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4.2.1 Query in a WinDev window or i
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PasswordIf the query is linked to a
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Example: The following SQL code is
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2. Running the query in the initial
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The following code is used to run t
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INDEXAAddItem 192Join 201Operation
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Use in a control 209Use in a report
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Reports &QueriesPART 3
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226Part 3: Reports and Queries
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1.4 Step 2: Configuring the analysi
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To make several queries of your app
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2. USING REPORTS & QUERIES2.1 Start
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2.3.3 Using a new queryThe end user
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236Part 3: Reports and Queries
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