BTEC IT Extended Diploma, Level 3 (Software Year 1 (F1215)

Richard TUnit 14 – Event Driven nt 2This stores the answer to the VAT and the Paint Pricing added togetherThis stores the answer for the Undercoat pricingThis variable stores the writing entered into the Details rich text boxThis stores the name of the Paint when one of the radio buttons are selectedThis stores and generates either a Yes or No answer if the Undercoat box is checked.[Constant] Used to set the defined number for the size of a Foot compared to 1 Meter[Constant] Used to set the price of Luxury to the defined price of 1.75[Constant] Used to set the price of Standard to the defined price of 1.00[Constant] Used to set the price of Economy to the defined price of 0.75[Constant] Used to set the VAT Rate to 20, so it can be used in calculation of VATEvent Procedures and Descriptions (At least 10-11)Name of EventPurposeTickUsed on the splash screen to enable loading, this will add a number to anexisting number, starting at 0 to count up. Once the timer reaches 100,the next screen (the login screen) is automatically opened.LoadExampleUsed on form 5, when the form loads up the word “No” is automaticallygenerated to the Undercoat labelling, this was due to an error in whichthe answer was not generating to the label.12 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2CheckedChangedIf the checkbox is checked then the If statement is true, otherwise theelse statement is true. This is for the Undercoat pricing as this is eitherTrue or False and cannot be anything else.ClickWhen button1 is clicked, a series of labels, boxes and buttons are madevisible for the login screen to be enabled, similar to the Ctrl Alt Delused on server computers to unlock them.Text ChangeIf the text is changed, it checks to see if it is a Number, such as an Integerand allows it if it is a Number, if not it blocks the input for such as Lettersor Symbols.13 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2Key PressKeypress is used to check to see if the data entered is correct for the box.Here I have stopped all letters being entered but only allowMouse LeaveIf the user is not hovering over the Label25, which is the details aboutthe paint pricing, then the image will not showMouse HoverIf the user is hovering over the Label25, which is the details about thepaint pricing, then the image will showMouse UpIf the user is not clicking on the TAX Label, then the explanation label willnot showMouse DownIf the user is clicking on the TAX Label, then the explanation label willshow14 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2Appropriate Ways of Representing the processing tasks15 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2PseudocodeStructured EnglishPseudocodeDeclarestring[] User new string[5] { "M", "T", "P", "D", "A"};string[] PassW new string[5] { "P", "Pass", "Access","Password", "Letmepass" };AssignLabel for feet to Variable for Area Feet in Stringformat.Label for Meters to Variable for Area Meters in StringFormatAssignlblFeet.Text Class1.AreaF.ToString();lblMeters.Text Class1.AreaM.ToString();ProcessClass1.UCPricing (Class1.AreaM * 0.5);ProcessUndercoat pricing is equal to Variable value for AreaMeters multiplied by a constant value of 0.5OutputlblUCPricing.Text Class1.UCPricing.ToString("C");Class1.UC ("Yes");Selectionif (txtboxUN.Text User[0]PassW[0] txtboxUN.Text PassW[1] txtboxUN.Text PassW[2] txtboxUN.Text PassW[3] txtboxUN.Text PassW[4])&& txtboxPW.Text User[1] && txtboxPW.TextUser[2] && txtboxPW.TextUser[3] && txtboxPW.TextUser[4] && txtboxPW.Text{Form2.ActiveForm.Hide();Form3 SF new Form3(); // open form 3SF.Show();}else{MessageBox.Show("User Name or Password incorrect, Tryagain");txtboxUN.Focus();}IterationStructured EnglishDeclareDeclare User as string with values of “M, T,P,D,A”Declare PassW as string with values of “P, Pass,Access, Password, Letmepass” OutputLabel for Undercoat pricing to show value fromVariable with value stored for Undercoat pricing as astring, with currency format.Variable for Undercoat is defined as “Yes”SelectionIf the password AND username are correct for 1 of the5 declared, then the 2nd form will hide and the 3rdform will show up.Otherwise, an error message will show informing theuser of an incorrect Username or Password.IterationLooped to continue until the value stored in thevariable STN is found within the file it is searching.Data found on the line searched will be shown in thetext box “Details”int STN;STN int.Parse(txtboxSearch.Text);StreamReader sr new StreamReader("Customer.txt");for (int i 0; i STN; i){txtboxSearchDetails.Text sr.ReadLine();if (txtboxSearchDetails.Text null) break;}sr.Close();16 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2P4 – Implement a working procedural application to meet definedrequirementsBe able to implement the application (Interior Design Program)Creation of ApplicationDesign ViewForm1 – Splash ScreenSome Code View (Coding has to be commented)Form2 – Login Screen17 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2Form3 – Customer DetailsForm4 – Measurement DetailsForm5 – Receipt/Invoice Form18 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2Debugging (2 examples)Here are 2 shots of me debugging my program. Here I am breaking the program at a certain point togo through the program, step by step, to check the data and the values of the variables to see if theyare correct and not causing any problems. This is a good way to locate and remove any Logical errorsin the program.Data Validation (2 examples) – (If Statements)If the data entered is not a digit ornumerical number from the keyboard,then it shall be blocked from beingentered into the box. No letters orsymbols will show in the box if entered.This is almost the same as above but itblocks all entry of data from the userkeyboard. This is because it is acombobox and data is supplied by theprogram and does not require user to input data, just select data.Error Handling and Reporting19 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2This coding stops the user from leaving the boxes blank, these 2 examples are from the CustomerDetails screen and Login Screen, both very important data input forms. If the user leaves these boxesblank, then an error message is generated with a message and OK click box.Programming Language SyntaxNaming Convention (How you have declared variables and control names such as text box)This is from the Class in the program which relates to the variablesused in the Customer Details and Invoice/Receipt screen. These areappropriately named such as “FName” for First Name and “LName”for Last Name, easily identifiable by programmers.The same applies to the text boxes and buttons in the program, I have named these accordingly tobe recognised and linked to appropriate tasks and variables. For example, “TxtHeight” is the Textbox for the Height measurement.ConstructsSelection (If/Case)This is the example coding from the splash screen, it states that IF I 100,then go to the next screen, otherwise add an increment to I of 4 until the firstcondition is met.The second If statement states that if a character is not either a Control or aDigit then it shall be blocked from being entered into the box.20 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2Iteration (While, Do, For)Programing StandardsCommentsThe comments on this program are in green as standard and help for the developers to understandthe program and the purpose of each line of code. Comments are good practice to understand andlearn coding as well as good for remembering lines of code for future projects.IndentationIndentation is a very crucial and important part of developing/programming, as code is basically justtext carrying out what the programmer wants, looking at text for long periods of time can make itbegin to look jumbled and become non-understandable by developers. Indenting helps to identifybodies of coding for different purposes. Good example is indenting from the open and closebrackets, so that developers know where coding begins and ends.21 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2P5 – Test an Event Driven ApplicationExplain Test StrategiesBlack Box – Black box is the testing of the coding and features which are not shown in a graphical sense.White Box – White box is the testing of the applications Graphical User Interface and how the user will interact with the program.Number1DescriptionTest LoginDate14/02/172Login Error ataNormal:“M” and “P”Erroneous:“MM” and “PP”Extreme:“M-&” and “P*1”Expected ResultShould load screen without a problemNo Data enteredinto Login boxes.Normal:H: 4L1: 12L2: 12L3: 12L4: 12Erroneous:H: 8L1: 35L2: 35L3: 35L4: 35Extreme:H: ** DL1: ! ” L2: ! ” L3: ! ” Error Message should generate andthen focus on the Username boxProgram should calculate Area inMeters and in Feet by Multiplying H *[L1 L2 L3 L4], then converting it.Which should come to 192m2 and633.6Sqft.Error message shows forboth Erroneous andExtreme testsDid not work, errormessage needs to be fixedProgram was able tocalculate the area correctlyand convert it to feetcorrectly, generating bothresultsError message should show wheneverthe user tries to calculate using thesemeasurements.Error message shows butthen the program crashesafter the error message isacknowledgedError message should show andprogram should not crash.Error message should show andprogram should not crashThe user should not be able to addthese into the boxes.Actual ResultWorks but enter button isnot usable with program,has to be a mouse clickPassed?YesNoNoThese are able to be addedto the boxes and thencrashes the program whenentered.22 P a g e

Richard CollinsUnit 14 – Event Driven Programming4Button clicking24/02/175StreamWriter Test01/03/176StreamReader Test03/03/177Run Testing03/03/17L4: ! ” Clicking buttonsEnter data intoCustomer andMeasurementscreens and checkthe text file for itLoad data intoReceipt formGeneral Runthrough the entireprogram.Assignment 2Buttons should link to their expectedactions, including Calculating, Loadingnew pages and clearing dataThe data should be present in one of thelines on the text file stored in the fileswith the programAll buttons worked wellwithout an issueYesThe streamwriter workedand stored the data asneeded to the text file.YesData previously saved fromStreamWriter Test should load into theReceipt formThe program should able to work withinexpected requirementsThe data worked andloaded as expectedYesThe program did not haveany issuesYesError MessagesError Screen PrintDescription of how you fixed itIn this field, I had accidently set themathematics of the program to add the Luxurypaint quality to the AreaM when it should havebeen multiplied by it instead. It was a simplechange from a plus symbol to a multiplysymbol.If my lengths were left empty, it generated anerror message but then crashed immediatelyafter, I needed to add a .focus for the box thatwhich is empty to stop it from crashing.23 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2This box should not be able to add text too butthere was no handler or error message linkedwith keypress for this box. By addingThe login screen help file button was not linkedto the actual file, so there for the button didnot do anything. I had to link the button to thehelp file saved in the same location as theprogram with a piece of coding.Here I had an issue with the undercoatlabelling. Even when it was not selected, it wasnot sending the “No” message, always sendingthe “Yes” to the receipt form. I had to declarethe label as “No” in the Loading of the Receiptform and have it overwritten if the user doesselect an undercoat.24 P a g e

Richard CollinsUnit 14 – Event Driven ProgrammingAssignment 2P6 – Create an Onscreen help to assist the users of a computerprogram.Review - Review of the program against the specification requirementsFor this project, the client had very specific instructions for certain parts of the program. the rest ofthe program was open to interpretation but myself as the designer. This meant it was harder tocreate as I had to meet with what the client wanted and then use my own ideas to finish theprogram but in a way that fits with what the client wanted, so that the program all comes togetherand not look like a merging of multiple software, but to make it truly an original program in its ownrights.Firstly, the user wanted a splash screen which was shown upon initial load up of the program. Thissplash screen had to display information about the software itself and other advertisements, such asone for the company it is being used by and an advert by myself as the developer of this program.Information about the software was relatively simple, as it just had to have Software version andrelease date included, as standard for most programs. As for the rest of the adverts, I chose to useimage based ones, such as the Company logo on the Splash screen. Under all of this, I included mydetails in brief to inform the user about the developer of the program.Secondly, the user required a Login screen. This was to ensure that orders were not calculated andprocessed by unwanted users, but only by official employees of the company, who each have theirown password and username to access the software. To do this was simple usage of a string in anarray format and If statements to enable for error handling, in case the user inputs the wrong datainto the fields. I made sure to not make the error message specific to which was wrong, such assingle messages for both Username and Password, but instead used a generic message of “EitherUsername or password is wrong” for both boxes. This was for security purposes to ensure that anyunwanted access could not attempt to guess the password or username and then figure out when 1is correct but another is not. This is common practice among most developers of all types, includingSoftware, Web and Games, and considered good security practice for anyone to use.Thirdly, the decorator needed to be able to enter in the details of the job but with certain limitationsof the company applied. This meant that the employee could enter in Height of the Room but notunder 2m or above 6m, due to company restrictions. This was again a simple usage of If statementsto enable error handling in case of a number being outside of the acceptable range being entered.The same had to be given for the Lengths, but this time they had to be between 1m and 25m, thesame principle was applied but using separate coding. I also had to allow for decimal numbers to beused within this, as we are dealing with measurements which do not always round up or down towhole numbers. This was difficult to do, especially with the validation coding, the most commonerror was when blocked letters and symbols, it would automatically block the decimal point, so I hadto specifically define for the code to allow the decimal point but no other symbol. This was achievedusing the CharKey and a Keypress event.Once the decorator had entered in the data, the program needed to work out the area of the roomin both meters, which we entered

-User Needs: 1. Splash Screen with Company Details and my own designer details. 2. Login Screen for Employees to login only, details are stored and checked from an Array 3. Customer details screen, to collect the details about the customer and store it to a file 4.