I am a beginner in C# database developing. I am developing a payroll application with four (4) user roles (i.e. Admin, Accountant, HR and ReadOnly). There is a Dashboard that displays four buttons that link their respective access pages. Though when logged in based on the user's role, he is directed to the Dashboard successfully. Now, what am expecting are that when the Admin logs in, all buttons on the dashboard should be active. But whenever any of the other users logs in, all other buttons should be disabled, except his. Below is the code I used; please can someone …

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I am working on a math tutoring program that asks the user for a seed value, gives them two random numbers from 1 to 500, and asks them to key in the correct answer. So far, here is my source code: [CODE] #include <iostream> #include <cstdlib> #include <time> #include <conio> using namespace std; int main() { unsigned seed; int = rand(); cout << "Enter a seed value: " ; cin >> seed; srand(time(0)); cout << rand()%500 <<endl; cout << rand()%500 <<endl; sum = rand() + rand(); cout << "What are the sum of the two numbers? " ; cin >> …

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Hello, I am learning Tkinter. As a part of the learning process I am building a Notepad clone in order to become familiar with Tkinter widgets. I am pretty close to completing it - I added about 90% functionality to the application - but I face two problems: 1) The text widget has a default fixed size (80x25 chars I believe). If I resize the root window at a greater size, the text widget stays at the initial size. This is an undesirable behavior - I expect/want the text to resize along with the root. Now, I came with something …

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Private Sub delBtn_Click() rs.Open Dim list As ListItem Set list = ListView1.ListItems.Add(, CStr(rs!Project_Name)) confirm = MsgBox("Do you want to delete the Employee Record", vbYesNo + vbCritical, "Deletion Confirmation") If confirm = vbYes Then ListView1.ListItems.Remove ListView1.SelectedItem.Key 'this line gives error Dim CM As ADODB.Command Set CM = New ADODB.Command Set CM.ActiveConnection = con CM.CommandType = adCmdText CM.CommandText = "DELETE FROM bmsTable WHERE Project_Name= ?" CM.Parameters.Append CM.CreateParameter("@Name", adVarChar, adParamInput, 50, ListView1.SelectedItem.Key) CM.Execute , , adExecuteNoRecords MsgBox "Record successfully deleted..", vbInformation, "Success" End If End Sub

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Has been looking at different methods like using a look-up table or double-dabble, but have up to this moment not found any algoritm that do the work most effectively. The 64 bit value is delivered to the routine in two 32 bits registers (upper,lower). I am writing a larger project for PIC 32 microcontroller, and have already made a large library for this controller in MIPS, so I know basic MIPS.

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Hi guys, I'm a little stuck with something here. Basically I have a a method which, given a List of Students will have to filter out those who are younger than 60yrs old and should return a List of Students who are over 60yrs old but I want this to be a list of Optionals rather than just a List of Students. THe difficulty is that I can't find a way to return a list of optionals like List<Optional<Student>>. I can return an optional if I use things like findFirst() or findAny() `return studentList.stream().filter(x -> x.getAge() > 60).findAny();` or i …

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Hi guys, I am having an issue finding duplicates in an arrayList. Here is some code studentRecords.add(new Student("Jo", "Pip", "JP000", LocalDate.of(1999,9,23), Sex.FEMALE)); studentRecords.add(new Student("Tara", "Bot", "TB345", LocalDate.of(1991,9,1), Sex.FEMALE)); studentRecords.add(new Student("Mara", "Lewart", "ML456", LocalDate.of(1988,5,23), Sex.FEMALE)); studentRecords.add(new Student("Anna", "Clarke", "AC010", LocalDate.of(1999,1,1), Sex.FEMALE)); studentRecords.add(new Student("Frank", "Boia", "FB300", LocalDate.of(2001,8,13), Sex.MALE)); studentRecords.add(new Student("Anna", "Clarke", "AC010", LocalDate.of(1999,1,1), Sex.FEMALE)); studentRecords.add(new Student("Jo", "Pip", "JP000", LocalDate.of(1999,9,23), Sex.FEMALE)); This is the list of student records stored in an ArrayList. I have to make sure that I identify the duplicates and store the duplicates in another arrayList, duplicateRecords for the sake of argument. Now, the first thing I tried was to …

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from tkinter import * import time root = Tk() root.title("Testing System") root.geometry("900x600") def main(): def tick(): time_str1= time.strftime("%H:%M:%S") clock.config(text = "Current Time:\n" + time_str1) clock.after(200, tick) def date(): date_str1 = time.strftime("%A, %d %B %Y") date2.config(text = date_str1) date2.after(200, tick) frame = Frame(root) clock = Label(frame, font = ("times", 14, "bold"), bg = "light pink") clock.place(x = 260, y = 60) tick() date2 = Label(frame, font = ("times", 13, "bold")) date2.place(x = 40, y = 560) date() button1 = Button(frame,text = "Test", height = 2, width = 10, command = frame.destroy and menu) button1.pack() button1.place(x = 370, y = 150) def …

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I having been trying to change the font size and textposition of a textfield but I have not had any luck. I am trying to change the font size of a text field. I would like the font that is typed in the text field to be bigger and bolded. I have tried this, but it does does not work: [CODE] Font font1 = new Font("SansSerif", Font.BOLD, 20); JTextField textfield = new JTextField (); textfield.setFont(font1); [/CODE] Also, I want the texted to be centered in the textfield. I have used this: [CODE] textfield.setHorizontalTextPostion.CENTER textfield.setVerticalTextPostion.CENTER [/CODE] Thank you for your help …

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how can i print 3 values(without knowing their string\number size) in same column using cout? i'm using these code: cout <<"\n" << "show tokens\n"; for(unsigned int i=0;i<Tokens.size(); i++) { cout << "Token: " << Tokens[i].Token <<right<<setw(20-Tokens[i].Token.size())<< "Type: " << Tokens[i].Type <<setw(40) << fixed << "Position Line: " << i<<"\n"; } but i know the 'token' size, but not the type size. so what you can advice me?

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hello i am developing an application in c ++ and mysql and i am having a lot of difficulties in more specified login in the query where the query needs the user and the pass which are in variables. Can anyone help me? Thanks.

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This is a program to get a student mark, as an input from user and print its grade based on the following criteria: if mark>=80 print 'A' if mark between 70-80 print 'B' if mark between 60-70 print 'C' if mark between 50-60 print 'D' if mark < 50 print 'F' How do I fix this code when e.g someone gets 75 it says you got a B C D ? percent = 85 if percent > 80: print("You got an A!") if percent > 70: print("You got a B!") if (percent >60): print("You got a C!") if (percent > …

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Task 2: Write a program that simulates an unbiased coin flip. Your program should print true if the coin flip results in a head and false if the coin flip results in a tail. Hint: any value greater than 0.5, represents Head otherwise it represents Tail

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Hi! I have made a POS Sotware. I have used only one JFrame as Main/Home Screen of the software and used JDialogs for all other screens. In this post I have concern with the 2 screens; Home Screen(which is a Jframe) and Sales Screen(which is a JDialog). As Home Screen appears I instantiate an instance of the Sales Screen in the constructor of Home Screen as : Sale sale = new Sale(); And on Pressing a Button on Home Screen I called : sale.visible(true); In the WindowOpened Event of the "Sale" Screen I load the products data from database and …

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i was on the site pyschools working through the exercises, but i dont understand why it wont accept the code i input. [url]http://www.pyschools.com/quiz/view_question/s4-q2[/url] Create a function generateNumbers(start, end, step) that takes in three numbers as arguments and returns a list of numbers ranging from start to the end number (inclusive)and skipping numbers based on the step specified in the arguments. Note: The function range(x, y, z) can takes in 3 arguments. For example, range(1, 11, 2) will return a list of numbers [1,3,5,7,9]. Examples [CODE] >>> generateNumber(2, 10, 2) [2, 4, 6, 8, 10] >>> generateNumber(10, 10, 1) [10] >>> …

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I am currently creating a product lookup system for a project of mine, however from reading around it has come to my attention that an OLEDB connection will not handle the SQL query below as it will not handle more than a simple "SELECT, FROM". Table: tbl_ProductInformation Field: Product_Name CurrentEntry = Variable storing the users entry [CODE] "SELECT Product_Name FROM tbl_ProductInformation WHERE Product_Name LIKE '*" & CurrentEntry & "*'" [/CODE] The outcome of this query is then put into a listbox. Is there anyway to make the OLEDB SQL query work so that the returned entries will correctly narrow down …

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write a C program to sort a csv(student.csv)file using QSORT on LINUX .. please help.. student.csv file containing(student name, percentage)

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hi.. am unable to view objects of a form in a project, although am able to view its code.. Whenever i try to open the form to view its objects, i rcv an error mentioning **"Error Loading Form. Please check "<path>.log" for details."** In the log file it says **"Line 59: Property Picture in cmdSelect could not be set."** How could i check the property of a command button without opening the form..?? Plz help..

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Hello Everyone, I have an FPGA application that has some function (i.e: Matrix Multiplication) now I want to create the memory interface for FPGA communication based on the model pushed into the FPGA? For example, If we have the size of 1024 and the size of data is 10 bit how we can create memory interface a/c to the actual size? 1. What are the possibilities which can achieve this mechanism? 2. Can you help me to make pseudo-code or c-code? I am trying to used sds_lib.h (**same as #include <stdlib.h>**) functions but I have no idea how to that …

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Hi! I want to learn programming. I'm 14 years old and very fond of computing. The only problem I face is *Which programming language should I learn?* or should I learn *Programming* i.e I learn the basics of programming so that I will be capable of learning any programming language. Also, when you recommend me one of the choice I stated above then please give me resources for learning e.g book names or some websites which will start me learning from scratch. Furthermore, I want to state that I want to create cool games, softwares or even Operating Systems from …

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I new in learning Object Oriented Programming... I face a problem that how to do this question for loop and if.... hopefully can get some help in this website...` this question is need to do from the previos question.. this is java need to do the question using NetBeans.IDE.. question:(at the link file) VehicleApp.java: package vehicleapp; /** * * @author asus */ public class VehicleApp { /** * @param args the command line arguments */ public static void main(String[] args) { Vehicle car; car = new Vehicle("car", "manual", "electric"); System.out.println("Accelerate: Current Speed = " + car.accelerate()); car.brake(); System.out.println("Brake: Current Speed …

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HI everyone, _SBLOCK *allocateMemBlock(size_t size) [ _SBLOCK *block = (_SBLOCK*)sbrk(0); void *memadr = (void*)sbrk(0); void *allocate_mem = (void*)sbrk(BLOCK_SIZE + size); if(allocate_mem == (void*)-1) [ return NULL; ] else [ block->next = NULL; block->isfree = false; block->size = size; block->memoryAddress = memadr+BLOCK_SIZE; return block; ]

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I'm doing an assignment for a class and I can't figure out what I'm doing wrong to keep getting the "illegal start of expression" error. Any help would be appreciated. public class Overloading { public static void main(String[] args) { public static int max(int num1, int num2) { if (num1 > num2) return num1; else return num2; } public static double max(double num1, double num2) { if (num1 > num2) return num1; else return num2; } public static int max(double num1, double num2) { if (num1 > num2) return num1; else return num2; { public static double max(int num1, double …

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At the risk of making a total fool of myself... I got very excited when I discovered that Java's "only opaque rectangular windows" limitation has been removed. Full release is intended for Java 7, but working methods can be accessed thru com.sun.awt.AWTUtilities in recent releases of Java 6 (I'm using update 20). I put together this little demo that adds some animation to the effects to give a hint of the potential. It runs for me under Windows 7 Home Premium; I just had to adjust Eclipse's compiler settings to warn rather then error for access rule violations. I'd be …

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Anybody who knows how to change word or character in kanji to katakana or vice-versa. I'm using 2 textbox to do this, the first textbox is for katakana and the second textbox is for kanji. What i wanted to do is, whatever i typed in the kanji textbox it will be converted to its corresponding katakana value in the first textbox or vice-versa. Is this possible in vb.net or do i need to use third party software / dll / activeX to be able to do this, anyone please give me a good idea how to deal with this problem. …

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H! I am writing a java proram in which I need to generate and read barcodes to and from .PNG images. I used barcode4j-2.jar library to generate barcodes and write them to PNG image. I did this successfully. But I faced an error during reading that generated barcode from the image. I used "OnBarcode.BarcodeReader.jar" library to read the barcode but it give s me folloiwng error: java.lang.NoClassDefFoundError: com/sun/media/jai/codec/SeekableStream at a.a.b.a.a(a.java) at a.a.d.a(d.java) at a.a.d.a(d.java) at a.a.d.b(d.java) at a.a.d.a(d.java) at a.a.d.e(d.java) at a.a.d.c(d.java) at a.a.d.a(d.java) at a.a.d.a(d.java) at OnBarcode.Barcode.BarcodeScanner.BarcodeScanner.Scan(BarcodeScanner.java) I am pasting the code here: public void ReadBarcodeFromImage() throws FileNotFoundException,IOException // …

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can you please tell how you would invert the mouse control so that up is down, left is right etc.

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[I]Last project for the semester and it's late!!! I am in need of some logic with this one....It seemed simple, but now it's out of control. My array with the ASCII converter works, but I can't seem to develop a complete output function to output this 'counter simulator.' Here's the problem and my code thus far:[/I]My mother always took a little red counter to the grocery store. The counter was used to keep tally of the amount of money she would have spent so far on that visit to the store, if she bought all the items in her basket. …

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i'm creating a program using Code Blocks with GNU\GCC compiler. i'm using Windows 10 with Windows Defender. my program create a txt files(instead a text files, we can speak binary files too), but the Windows Defender can delete the file(and i have sure), for avoid these problem i must disable the Windows Defender. my question is: can i compile my program(even using a compiler\linker flag) for avoid the Windows Defender problems? ok.... i can disable the Windows Defender and make an exception.... but if i share my program, the new user will get the same problem :( can anyone advice …

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Python-wxPython Tutorial This tutorial will take you through the basics of wxPython. ##Introduction: Let's face it. I am a dinosaur. I got my computer science degree in the mid 70s. And it won't be long before **I** am in **my** mid 70s. So why am I trying to learn Python? Mostly because learning new things keeps my brain active. And besides, nobody on Daniweb seems to be asking questions about vb.Net anymore. So I thought I'd give it a try. After a few weeks of puttering I managed to learn enough Python to rewrite all of my vbscripts (stop laughing, …

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The End.