C Sharp :: Access Database Is Copying To Output Directory On Its Own
Oct 4, 2014
I have an extremely annoying problem, I am inserting data into an access database and now i have noticed that it is copying itself to the bin/debug folder on ts own and yet i have set "Copy to Output Directory" property to "Copy never"
But without fail, it is copied! It is making any attempted updates to the database's information invalid since its not updating at all.
This all started when i installed crystal reports and it asked me to make a duplicate of the database in order to utilize data-sets that were created for certain reports.
Why this is happening? I cannot test my application properly at all.
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Feb 8, 2014
I have tried to use File.Copy and File.Move but non of them would work as I expected .....
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Jan 21, 2014
I have application that codes and binds an access database to a windows form application. Everything seems to work however, nothing is actually saved in the database. Updates and deletes are coded and debugging steps through, but checking the db, the data is the same.
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Jan 31, 2013
I have an application which inserts large amount of data in Access database. So to speed up the things i have set Indexed property to No.
So at the end of insertion i need to set the index to the column of the one of the table to Indexed (Duplicates OK) through C#.
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Feb 21, 2014
private void update_Click(object sender, EventArgs e) {
OleDbConnection conn = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;
Data Source=C:UsersshobhitDocumentsEnvironment_Monitoring.accdb;
Jet OLEDB:Database Password=divya6");
String sdat = dateTimePicker1.Value.ToShortDateString();
String la = labs.SelectedItem.ToString();
[Code] ....
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Dec 31, 2014
I would like to copy one bmp file to another using plain fstream (none 3-rd party library). I've managed to come up with something but I keep getting error:
Unhandled exception at 0x504A3442 (msvcr120d.dll) in ConsoleApplication1.exe: 0xC0000005: Access violation reading location 0x00380000.
when i try to write the content of the bmp files not the header, namely error occurs in this line:
Code : ofs_differential.write((char*)&picture, (bfh_warm.bfSize - bfh_warm.bfOffBits));
Also i am not sure if i am doing it in a right way, meaning that even after solving this error i will copy the bmp file successfully.
Code:
// ConsoleApplication1.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <iostream>
#include <fstream>
using namespace std;
struct BITMAPfileHEADER {
unsigned short bfType;
[code]....
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Dec 12, 2014
I have:
An Access database in which the picture right now is saved by its directory, together with other field like title, publisher, developer,..
Visual Studio form in which a load button gets that directory as text
Details button that reads the ID of a selected item (I have a list of games) and displays the corresponding picture by reading the directory
The problem right now is that once someone else opens the program on his/her computer, the directory changes, making the whole thing useless.
Is there a way to get around this problem? The books I've been reading don't really adress this.
Directory is a string in class 'Game'; it's short text in the database
private void buttonFoto_Click(object sender, EventArgs e) {
LoadNewFile();
}
private void LoadNewFile() {
OpenFileDialog ofd = new OpenFileDialog();
[code].....
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Mar 17, 2014
I want to connect an access database (.mdb) to my Windows Forms application - this I can do and I have no problems viewing my table in server explorer.
Some code example or template that I can use as a base to learn from - I have literally trawled Google and Youtube and cannot find what I am after.
What I want to do is have a basic form, 2 text boxes and a button to save the data to my database.
FirstName and LastName are the 2 boxes.
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Jan 21, 2015
I'm looking to implement a Database Access Layer for the project I'm working on, it's a mature project and I'm trying to simplify the database access and as far as possible and remove the Database logic from the Business logic.
Bringing in an ORM solution isn't an option at the moment so I'm looking at bringing in DAO objects to break the coupling. The problem I can't get around in my head is how to avoid Cyclic references
We currently have 2 projects
BL contains types such as Customer, Component and Product which need saving to the Database, the Database project can't know about these items or it would create the cyclic dependency.
I tried adding Dao items to the DB project to mirror these items and to also mirror the DB structure but that requires that the BL project knows how to convert between it's own types and the DAO types which is something I'd like to avoid.
I also tried inserting a third intermediate project that would control the conversion and saving, I called it my DAL project and tried adding functions that would take the BL item and perform CRUD operations but again I ran into the cyclic dependency issue.
My ideal solution would be that the BL project would just have to call a function along the lines of "SaveCustomer(Customer inCustomer)" and not have to worry about doing any conversion.
Is there a project structure that would allow for this?
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Nov 20, 2013
I'm trying to output only a few files, using regex, from the current directory, this is my main code:
Code:
// main.cpp
{
char * _dir = new char[MAX_PATH];
getcwd(_dir, MAX_PATH);
unique_ptr<CExtractor> _ptr(new CExtractor(_dir));
delete[] _dir;
}
Code:
// CExtractor.cpp
DIR *pdir = NULL;
struct dirent *pent = NULL;
pdir = opendir(_cwd.c_str());
while ((pent = readdir(pdir)) && (pent->d_type != DT_DIR)) {
if (regex_match(pent->d_name, regex(".(in|txt)$"), std::regex_constants::icase)) {
cout << pent->d_name << endl;
}
}
closedir(pdir);
My code is compiled correctly, but when I run my binary, nothings is outputed..here are my files in the current directpory:
aclocal.m4 config.guess config.status depcomp m4 NEWS
AUTHORS config.h config.sub INSTALL Makefile README
autom4te.cache config.h.in configure install-sh Makefile.am src
ChangeLog config.h.in~ configure.ac libtool Makefile.in stamp-h1
compile config.log COPYING ltmain.sh missing
I have a few "in" files
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Dec 5, 2014
regex pattern that takes only directory without file name
private void txtDownloadRoot_Validating(object sender, CancelEventArgs e)
{
Regex driveCheck = new Regex(@"([a-zA-Z]:[^/:*;/:?<>|]+)|({2}[^/:*;/:?<>|]+)");
if (!driveCheck.IsMatch(txtDownloadRoot.Text))
[Code].....
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Jan 20, 2015
I am doing "Virus Tracking System" Project. I have to scan the directory selected from treeview ....
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Sep 29, 2012
i have to upload a ms access database file to the server from my client program. The server program should connect to this database and read the data. What's the easiest way to upload the file? Is it FTP? i tried sockets, but it only allows like 9kb of data transfer capacity.
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Feb 7, 2013
Book database. I use scanf to store book name,author name and year when is book written. Example:
Code:
scanf(" %[^
]",k[i].bookname);
I have problem when i want to printf all books from database with this:
Code:
for(i=0;i<counter;i++){
fscanf(f,"%s %s %d",k[i].bookname,k[i].author,&k[i].year);
printf("
%d %s %s %d",(i+1),k[i].bookname,k[i].author,k[i].year);} Output:
Number Book name Author name Year
1 King John 0
2 William Shakespeare 1590
How can i fix this?
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Feb 8, 2014
The main question how to fully traverse/circumvent through all TreeView, for transforming Tree structure into a Table structure.
I want to note that the TreeView may contain a different number of branches, with different depths and different names.
I found a lot of information how to populate TreeView e.g. from DataTable, but I didn't found information how to recursively traverse/circumvent a TreeView and populate/fill data e.g. to DataTable.
As sample I have following TreeView:
Aaron
-Baldwin
--Caleb
---Dale
--Earl
-Fabian
Gabriel
-Harold
-Ian
Necessary to convert the TreeView into e.g. DataTable:
id | Name | ParentId
--------------------------------
1 | Aaron | null
2 | Baldwin | 1
3 | Caleb | 2
4 | Dale | 3
5 | Earl | 2
6 | Fabian | 1
7 | Gabriel | null
8 | Harold | 7
9 | Ian | 7
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Dec 21, 2012
How to set execute statement in the end of sql, Attach is my code:
private void InsertintoDB() {
string strSQL = "";
string strDBType = System.Configuration.ConfigurationManager.AppSettings["DBType"];
string strConn = System.Configuration.ConfigurationManager.AppSettings["DB_CONNECTION_STRING1"].ToString();
string strInsertTableName_Sql = "CIMMGR.[dbo].ANSDATA";
[Code] ....
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Jul 12, 2013
I just wanna update my database with one click only.
I do for update my database from datagridview1 but it shows a error like this :
Unhandled exception has occurred in your application . If you click Continue, the application will ignore this error and attempt to continue. If you click Quit,the application will close immediately.
Update requires a valid UpdateCommand when passed DataRow collection with modified rows
Attached Files : WindowsFormsApplication4.zip (127.2 KB)
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Aug 3, 2013
I am developing a win form application with sq l server2005, in client system after install the application I created the folder for storing the database of running application, like that I have every year database separately, My doubt is how to connect the particular year database while loading the app?
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Apr 3, 2013
How can i browse database name and server to connect?
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Dec 24, 2012
I have a text box invoice no on windows form and i need to retrieve data from database and everytime user click on the add button the invoice no should increment by 1...
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Mar 11, 2013
I'll work soon on a program that should take the finger print from a reader and save it in sql server to determine employees's presence and leaving. My questions are:
1- Is the written code differ from one reader to another? or any code apply to all readers?
2- I knew that i should take the image and save it in varbinary in sql server, but how i shall take it?
3- Libraries i should use in visual studio 2010 and c#?
4- should i write license with a definite number of fingerprints save?
5- when i try to approve an employee pressece (by taking his fingerprint), shall i go directly to his id in SQL server and compare his fingerprint stored with the new one entered, OR i Should take the fingerPrint and search for it?
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Feb 22, 2015
I have a program in C#.net. There is a datagridview which shows all the details of the student. Then I add a column to update another column using the value I entered. Means I want to add roll no to student details table while running. I want the code to update it. Is it possible?
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Feb 14, 2013
I am facing a problem which is that when i search image from database then it just shows last image which is stored in the database. My code is
private void Images() {
SqlConnection con = new SqlConnection("Data Source=chusman-pc;
Initial Catalog=Hotel_Management;Integrated Security=True");
con.Open();
SqlCommand com = new SqlCommand();
[Code] ....
I call this function at SelectedIndexChanged of dropbox..
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Apr 20, 2013
i want make a setup for C# program with SQL data base but i can not . i use installshield but i have error in connection to database in execution program.
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Oct 5, 2013
adding a column in ms access database and update it with a value.Here is my code, it gives an error that says syntax error in field definition.
string myConn = " ";
myConn = "Provider=Microsoft.ACE.OLEDB.12.0;
Data Source=C:/Users/EmployeeAttendanceRegister/EmployeeAttendanceRegister.accdb";
OleDbConnection myCon = new OleDbConnection(myConn);
string myInsert = "ALTER TABLE Attendance ADD COLUMN SignIn" + dateTimePicker1.Value;
[Code] .....
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Feb 9, 2013
I have patient_table in the database. which contain Id, name ,Image & other fields I have inserted the image in the Byte form in the database.Now i want to display all records in the Datagrid view in windows Form.
i am able to display id & Name & all fields but unable to display the image of a patient in the datagrid view.
I put all the records in the genric list:-
public static List<Personal_Details> AllMembers() {
List<Personal_Details> listMembers = new List<Personal_Details>();
Personal_Details pDetails;
try {
String Constring = ConnectionString.dataBaseConnectionString;
[code]...
i am unable to write the code for displaying the image on data gridview.
I am unable to find the solution for binding the image field in the datagrid view.
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