C++ :: Connecting To Database Using Drivers
Apr 8, 2013How to connect my c++ code to any database using drivers.
View 2 RepliesHow to connect my c++ code to any database using drivers.
View 2 RepliesI'm trying to connect to a SQL Server Database, but when I click my button1 my entire form just locks up and nothing happens! I have to click the "Stop" button to stop the form from running in Visual Studio! I'd at least expect to receive an error if some of the connection string was wrong.
Here is my code:
private void button1_Click(object sender, EventArgs e) {
connection();
}
public void connection() {
SqlConnection myConnection = new SqlConnection();
[Code] ....
I was created the mysql database in my Pc. This database connecting with vc++ code Using MySQL C++ Connection Example in Visual Studio. I done this work in single PC. It's working good. i viewed the table values using vc++ application.
But now want to connecting the database through lan connection. I refered the below link but i'm not clear.Step # 5 Grant access to remote IP address
For your reference, (I installed)
PC1 - visual studio 2003, mysql 5.6 for win32 & mysql connector (Ver : mysql-connector-c++-1.0.5-win32), OS : XP SP2, IP : 192.168.100.123
PC2 - mysql 5.6, OS: XP SP3, IP: 192,168,100.9
Table created in PC2, database name "test". server = 'localhost', user = 'root', passwd = "".
I like to connect PC1 & PC2 through Lan & access the table using vc++ code.
How can i view PC2's database table values in PC1?
I am starting a project in a few weeks that needs to be able to prevent an executable from running until it has been checked for various criteria (think of it as a DIY anti virus).
My main idea is to build a file filter driver in C to hook into file system reads and writes and prevent executables that I don't like from executing off the disk.
Recently I got a drawing tablet. One valued feature of this tablet is that it is pressure sensitive (2048 levels). No matter what the model, almost every company's tablet's features (like pressure) are compatible with well-known commercial products like Photoshop, and this is precisely what I'm wondering about:
If well-known graphic products can do it, how do I make my own program to recognize this device's features? How can I access/extract real-time data from a device. Assuming I have all driver stuff correctly installed.
I've been trying to google keywords like "[company] header files" or "[company] developing programs" or stuff like that to no avail... not really sure what to search for.
If you need specific information about the actual device, I will post it, but I'm also just looking for general knowledge about how to this type of thing, with any device.
(I'm not talking about a GUI or how to actually code graphics to respond to the pressure, just about receiving information from it.)
How to get this code to compile and build. It gives me a really strange error saying:
"1>Project 7 Code.obj : error LNK2019: unresolved external symbol "void __cdecl checkAnswers(char * const,char * const,int,int)" (?checkAnswers@@YAXQAD0HH@Z) referenced in function _main
1>C:UsersHaruha Raharu HarukoDesktopSpring 2015 Class WorkIntro to ProgrammingProject 7Project 7DebugProject 7.exe : fatal error LNK1120: 1 unresolved externals"
Here is the specifics on the assignment:
"Complete Programming Challenge #12 (Driver's License Exam) with file modification
The State Department of Motor Vehicles (DMV) has asked you to write a program that grades the written portion of the driver's license exam, which has 20 multiple choice questions.
Here are the correct answers:
1. B 5. C 9. C 13. D 17. C
2. D 6. A 10. D 14. A 18. B
3. A 7. B 11. B 15. D 19. D
4. A 8. A 12. C 16. C 20. A
Create a TestGrader class. The class will have an answers array of 20 characters, which holds the correct test answers. It will also have a student array of 20 characters to hold the student's answers. It will have three public member functions that enable user programs to interact with the class: setKey, setStudent, and grade. The setkey function receives a 20-character string holding the correct answers and copies this information into the answers array. The setStudent function will read in the student's answers from the file student.txt and will store the answers in a 20-character array named student. The grade method will compare each student answer to the correct answer in the key.
An applicant must correctly answer 15 or more of the 20 questions to pass the exam. After grading the exam, the program should display the following items:
-the number of right answers and the number of wrong answers
-a list of the question numbers for all incorrectly answered questions
-a message indicating whether the applicant passed or failed the exam"
I'm currently in the middle of designing a program for some project. one part of the program is to send reminding SMS messages to the employees.
I have already subscribed to a SMS provider that has SMS integration - API. But now I'm wondering how will I be able connect to the SMS server and be able to send messages?
I have a mobile application for android coded in javascript and a windows form coded in c#. I want my mobile app to send some data to the c# program. It is fine if the transmission is not secure. I searched the net. I found a site called pastebin.com. Unfortunately it provides api for posting and reading data. However I want something, where I can store,read as well as EDIT the data.
View 7 Replies View RelatedSo I have my GUI far along enough to start incorporating my program, but I am hesitant to start because I want to be careful to do it in an effective and easy to manage way.
The code so far for the GUI alone is about 2100 lines, and I estimate it will be about 8000-10000 lines long when the program is complete. The code for the actual program (without GUI), is about 6000 lines long so far, and will probably get up to about 10,000 when I've added most of what I intend.
Is it a good idea to have the GUI portion, or at least some of it in a separate source file? If you were to do this, how would you? Obviously you can only have one main function. Would you have a file just for the main function, a header file with all the necessary includes and global variables, and put different portions of the rest in separate files.
Concerning the GUI; In my main function, if you click a button, a function connected to that button is called. Inside that function, I may have code to hide many other buttons while this button is selected; Also to manage effects which see visually which button is selected. My program so far has like 70 different GUI objects which all get modified, hidden, shown, etc in different circumstances, and multiple menus.
My question; what's the most reasonable way to do this? Right now all my buttons, and their associated objects are all global. Is this reasonable? Is there an exception to the globals are bad rule in cases like this?
I need to create a client and server program. The client will have a GUI that will display all the available servers (since more than one will be running) in a list box.
I’m guessing a TCP connection will be the best method here, but how will the client find the servers to connect to? I won’t know the IP address of the server because anyone could take the server program and run it on their computer and the client would have to find it.
Is there some way to make the server send some kind of signal that only the client application will be to connect to? So the server will be sending out a signal, the client finds the signal and connects to the server. Is this possible?
i also need to be able to store the IP address the client selects so when the client application is run again it will automatically connect to the server that was stored.
I have a map that is full of 4+ rooms each with one randomly selected door on one of its sides. I need to create a tunnel connecting all of the doors together. I'm not sure the best way to do this A* seems to complicated for me to do at the moment and I cannot think of a way to connect these rooms.
My world is currently a vector<vector<Tiles>> and the tiles contain entities like tunnel, wall, stair, floor, etc.
I'm trying to make my 1v1 game playable online and I would like to have the 2 players connected directly rather than trough a server.
The problem I'm having is that I don't have any experience with server client communication or internet libraries in c++
I am gonna make a simple game in c++. I need a way how to use a particular key on the keyboard ,when I hit the key certain function should be called.
For movement of cursor on screen I want to connect arrow keys.
I'm currently in the middle of designing a program for some project. one part of the program is to send reminding SMS messages to the employees.
I have already subscribed to a SMS provider and they gave me an access to a control panel (aspx). But now I'm wondering how will I be able connect to the SMS server and be able to send messages?
Is it possible to add more than one database in a C# program if so, how?
View 7 Replies View RelatedI'm trying to make a database that stores the information without overwrite it. I want this program to store the client’s selection in somewhere that doesn't change and also that creates a new storage for the new value any time the client enters a new selection instead of overwriting it. I did something like that in my code but any time the program runs again and the client enters a new selection, the client’s selection is overwritten with the new value. I don’t know if it’s possible to do that (store the client’s selection in somewhere where doesn't change) with C++. I've been reading and I think I can create a database for my program.
THIS IS MY CODE:
#include <iostream>
#include <string>
using namespace std;
// FUNCTIONS
[Code]...
My program add something in a data base, but after program is closed all data is removed.
conturiSQLDataSet.LoginsRow newUserRow = conturiSQLDataSet.Logins.NewLoginsRow();
...
conturiSQLDataSet.Logins.Rows.Add(newUserRow);
There is a method that program can save all data?
I am trying to experiment with programs and databases. Right now I am trying to set up a database so that my program, which currently just appends its results onto a text file, will instead store each result into a database, because this will make things much easier to access than trying to read specific results from an ever-larger, disorganized text file.
View 2 Replies View RelatedIs it useful to use SqlTransaction and transaction.commit() or rollback when only reading from a database? Have some code here that does that
View 1 Replies View RelatedA user is supposed to enter student name, id, and grade then sort them by name, id, or grade. I managed to get it to sort by name and id correctly, but not by grade.
Code] .....
#include <string.h>
#include <stdio.h>
struct student{
int student_id;
char name[30];
char grade[15];
[Code] ....
I am trying to write a program to search a library file with the name of a book or author and return the books that match the searched string in some way. For instance, if I search "Develop" it should display Game Development Essentials(Novak) and Developing Games in Java(Brackeen) and tell me that 2 records were found. Currently, it shows all the records regardless of what i search for, even if it is jibberish. Am I missing something in my functions? should I include the code that accesses these functions?
//If the user chooses A or a
int showBooksByAuthor (int count, string name)
{
char choice;
int index = 0;
}
[code]....
I have so far tried MySQL++, ODBC, SimpleDB, and the MySQL C++ Connector. All of them give me a FLOOD of errors in the output. Is there an easy way to connect?
View 7 Replies View RelatedI have a database of images and I want to store paths of all those images to a text file (lets say "images.txt"). I can then use this text file in c++ to extract images one by one by using getline() in a loop.
I don't know how to store image paths to a text file.
What is the best way to save a c# web page to database, either sql or oledb both fine. What I am looking to do is save all the data that has been entered into a database then upload this data to a grid view or form view.
The problem is there is a a lot of data on the page. Such as drop down lists, check boxes panels text boxes. I am able to display the text boxes in the database when i enter information into them. this is not working for the other objects. Also there is fixed data in the panels which doesn't require user input but I still want this info saved as it is vital.
In short I want to save the data from a page ive created called DOCare.aspx into a database. then take the data and display it in Forms.aspx a different page, where it will list all the completed forms for the user to modify if needed.
How to do this or links to websites that have information on this?? Dont know if i am wording it wrong but just cant find a way to do this. Everyone ive seen is working with small amounts of data and only text boxes.
I had a project to create an ATM with a database of 100 customers, i wasn't able to interface the real program with the database. I have submitted the project already. Here is the database and the ATM program
#include <stdio.h>
int main(void) {
int account, pin;
[Code]....
I had assign to do a project using c# window form.Now I am doing a smart part of coding which is let the data in textbox and using keypress function with a enter,the data will save in database and show on datagridview.I had searching how to do it online but all of them using mysql or sqlcommand something to do it! But my project is using the code that already done and can access without mysql or sql coding... Using this code to connect and show in datagridview...
using (TMPB_attn_DAL dalObj = new TMPB_attn_DAL())
{
dataGridView1.DataSource = dalObj.GetRecords().Cast<TMPB_attn>().ToList();
dataGridView1.Refresh();
}
This is the function code for me to add data inside database,it can run but just still cant save.
private void txt_proximity_KeyPress(object sender, KeyPressEventArgs e) {
if (e.KeyChar == (char)13) {
if (BusinessLogicLayer.TMS_GET_PROXIMITY_VALID_TO_USE(txt_proximity.Text) == true) {
TMPB_attn row_tmpb_attn = new TMPB_attn();
[code] ....