Checking For Different Users In Database?
Jun 21, 2010
I've been looking all around and i have not found a appropriate solution for my question.Here it is. I've a database table which has the field "username" and "password" and within the "username" field, there would be users like "admin","cashiers" etc. I would like to generate a login page using php that actually detects what are the users logged in as. additional info: I'm using Flash, php and MySQL. So i would just need the solution to how am i to detect.
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Dec 29, 2010
I've got a code using SQLClient that loops though all users in a Users table inside each loop i want to preform another search in the UserOrders table, thus doing a count of all orders.
I get this error
HTML
There is already an open DataReader associated with this Command which must be closed first.
Here is my code
vb.net UserLists.Items.Clear()
Dim connection As New SqlClient.SqlConnection(My.Settings.ConnectString)
Dim command As New SqlClient.SqlCommand("SELECT * FROM Users ORDER BY PersonName",
[CODE]...
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Feb 26, 2009
I am on the brink of developping an application for myself and some collegues at work. I will use VB 2005 and SQL server 2000 or 2005.
Here is my question: When I build the connection string do I have to use only 1 database user for all of the users of the application or does each user need to have its own database user in SQL Server?
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Sep 23, 2011
I Created a database in SQL Server Management Studio(2008 R2) And The server name . Is When I installed the software on the user's system software can not connect to database? But I can not underestand that What is needed for installation on user systems.
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Apr 25, 2009
I have a program which is almost complete, it gets data that is new or newly modified (well at least since my program last got this data). The problem I have is currently i'm adding this "new" data but i've just clicked some of this data may be in my database already just updated. For example, I have added some user data to my database but a user has just updated their user name - so this is now newly modified! I don't want to add it as new data I want to update my current row in my database. My question is how can i do a SQL query in my access database to see if this row exists or not?
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Oct 11, 2011
here's the scenario. There's 2 types of employees; Worker and Manager. The worker will have to access the page 'worker.aspx' and the Manager will have to access the page 'manager.aspx'. In my login database (Access 2007) I have the first name, last name, username, password and job title of both workers and managers. Ex:
[Code]...
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Mar 4, 2009
I have a form where when the user clicks the button the values of the form are stored in SQL database. I want to write code in order to check if a specific textbox-value already exist in the database table (in the field "Name"). I 've tried writing something but it doesn't work properly.
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Nov 24, 2009
In my .NET application I have to manage bookings for rooms. I enter the room booking via an SQL query to a MS Access database using an INSERT INTO statement.
Before I insert the booking, I need to check if a booking already exists for that time period, and if it does stop the user from being able to book at that time.
I have written code to retrieve a database result on the day and time of the booking they want to book, and the fact that Access would return data would mean that the user is trying to book over someone else.
how I can check if I have a resuklt returned. My code:
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=D:Databasedatabase.mdb;")
cn.Open()
[Code].....
But this doesn't work, it displays the messagebox regardless of if there is a row returned or not. How can I check if a row was returned?
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Jan 17, 2012
i have a checkbox on a form, which is of type boolean in the database .when the user check the checkbox, before the data enters the database, the program should check if there exists already a "1" on the database for this field.If so the user is not allowed to check the depot.
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Jul 18, 2011
I have this Add User Form and a Function Class, I need to know if the username typed in the Add User Form already exist in the database, so that I can warn to change the username but I have problems doing that.
Here's the code for the function class:
Public Function addUser(ByVal arole As String, ByVal ausername As String, ByVal apass As String, ByVal aname As String, ByVal aaddress As String, ByVal aregion As String, ByVal aprovince As String, ByVal atown As String, ByVal adate As Date, ByVal acreator As String) As Boolean
[Code].....
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Aug 18, 2011
I'm a little confused about checking values in a database. What I want to do is see if a tuple such as the following exists:
[Code]...
The invoice_num is not null, it's blank: " ". What I want is to find if such an entry exists, where the invoice_num is " " and update it with a number entered into a textbox. I'm a little confused about if statements and cases in SQL, so if someone could point me in the right direction, that would be great!
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May 29, 2009
using the sql server management studio we can create users to access the database. so we can grant several privileges as well as revoke some. so i want to create a login form with those user's. how to do it. is there any other way [code] in the connection i have to mention the user also.. is it possible. if its possible.
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Jun 21, 2011
I'd like for my application to have a listbox displaying all users currently connected to my access database stored on a server. Also, it would be nice at startup for a message box to pop up saying something like "Other employees are currently using this application. To view active users go to..."
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Jun 4, 2011
I sware I am loosing the will to live, I have tried to accomplish this by my-self for about 2 weeks now and I am still at square one.
I am writing an application for booking conference rooms and I need a login form.
I have created my database called Users in sql and inserted 2 default login accounts, admin and default.
I dont know how to compare the data in my database to the data typed into the username and password text boxes on the login form.
see what I have so far
Imports System.Data.SqlClient
Public Class LoginForm1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]....
I know that I have to create a click event handler for the login button and put my code in there to compare the data
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Jun 16, 2011
I am trying to check where an item in my array list exists in the database.The list would have already been created at an earlier stage.Now that some items may have been removed from the database, I wish to check the list against that database before removing the items, from the list, which are no longer in the database.The following code removes all items from the list rather than just each one which doesnt exist.[code]....
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Feb 9, 2010
I am using a MS Access database as the backend of my VB.NET application. I am entering users details into the database using an INSERT INTO statement:
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & config("DatabasePath") & ";")
cn.Open()cmd = New OleDbCommand("INSERT INTO blah blah blah...", cn)
dr = cmd.ExecuteReader
[Code]...
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Nov 30, 2010
database - Checking if INSERT INTO statement was successful
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Jun 23, 2009
I am using the Mysql .NET connect and can connect to my database using my program. i want to be able to get a Users Password from the database using there user name
This is the query i want to use: "SELECT Password FROM staff WHERE Username = " & textbox1.text & " '". But i don't know how to run that query and to get it to store the Password as a variable
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Aug 22, 2008
I am developing an access database that will be shared with multiple users.I don't want the users to access the database directly so I will have them enter new data on a data access page. The data access page is stored on a Microsoft Share Point web page, and the database is stored on a network drive.Here is my problem: When new data is entered on the web page I need it to trigger a WillChangeRecordset event; however, I have not been successful because the web page does not declare a new instance of a recordset object.At a minimum I need the new data to be processed before the web page appends the new data to the table.
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Jan 26, 2009
Do users of windows applications have to have the database application installed if your program uses databases to store information? For example, when making VB2008 programs, if I use the visual studio express database (.sdf), or maybe a MSAccess database, to store information within my visual basic program...when I deploy the application to the users, can they run the program okay even if they don't have MSAccess installed on their computer?Also, do I need to have MSAccess installed in order to write programs that use MSAccess databases?
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Nov 5, 2011
I am developing a Visual Basic .NET application to be used by the staff of a small training centre nearby. The front-end (UI, menus, etc.) will all be in VB .NET, and there will be a back-end database for storing all of the required data, such as student records and meeting information. What I would like to know is if it's possible to use a Microsoft Access database for this purpose, and have it accessible by all the staff in the centre (on the same network) at the same time. For example, would I be able to put the database in a shared network folder, and have a copy of the VB application on each PC that would all be able to read/edit/add to the database?
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Apr 8, 2012
how to authenticate users with the SQL Server database table using VB as a web service. I managed to connect to the SQL server via this VB code;
Public Sub ConnectToSQL()
Dim con As New SqlConnection
Dim cmd As New SqlCommand
[Code].....
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Feb 9, 2010
I have an asp.net web app that uses forms-based authentication, a SqlMembershipProvider (using an encrypted password format), and a SqlRoleProvider. I need to know if it's possible to administer the users (create new users, assign them to roles, etc.) from a windows application - the powers that be don't want any administrative functionality in the web app itself.Here is the membership provider definition from web.config:
<membership defaultProvider="MyProvider">
<providers>
<add name="MyProvider"
[code].....
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Jun 21, 2009
The application must have basic functionality as to: Insert new customers into the database A search function will be needed to find a users criteria entered The more advanced features would include matching certain criteria with another for example if the data in field 1 is the same then it should match this and return the results. so for example if a person has a hobby of 'football' it will return all the people with the same hobby
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Sep 12, 2010
I have a form in which I am updating records to table Users in database China.accb. The btnClick sub successfully updates the Dataset. However, the actual table Users never gets the update. What am I doing wrong? The code is below.
[Code]...
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Apr 3, 2012
1.I�d like to publish a free vb.net desktop application for the users to download and use meanwhile I�d like to collect usage information ex: user ip address, user�s registration information, used features, time spent� if the user allows the report to be sent back.
2.Also , in order for the user to be able to use the application, he�ll have to register it then, everytime, before the application loads, it gets verified online that it was registered, maybe validate the registration information or a valid user name and password, no critical personal information. The target of this step is for the application to be used exclusively by the registered user and maybe on his computer only.
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Apr 4, 2012
1. I�d like to publish a free vb.net desktop application for the users to download and use meanwhile I�d like to collect usage information ex: user ip address, user�s registration information, used features, time spent� if the user allows the report to be sent back. 2. Also , in order for the user to be able to use the application, he�ll have to register it then, everytime, before the application loads, it gets verified online that it was registered, maybe validate the registration information or a valid user name and password, no critical personal information. The target of this step is for the application to be used exclusively by the registered user and maybe on his computer only. Any alternative way to achive the target is just fine.
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Jan 11, 2010
code for sql server database offline checking from vb.net for restoring backup
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Feb 16, 2011
I'm a newbie in visual basic. I'm doing a login system. I'm done with the GUI. but for the programming part, I want to know where to store new user's information along with the username and password. I've done research. seems like it has something to do with database. p/s: I'm looking for high security in storing data to prevent hacking.
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Apr 20, 2008
Scenero: Users inputs the barcode numbers into a textbox, hits the search button and is returned the description of that barcode.
Database:
Two fields: Barcode - barcodes in this field
Description - Description revalant to that barcode
Form:
Consists: Textbox(Input) - txtBarcode
Button(Process) -btnClick
Listbox(Outut) - lstDetails
Code:
Dim con As New OleDb.OleDbConnection
Dim ds As New DataSet
Dim da As OleDb.OleDbDataAdapter
[CODE]...
This is the code i got to connect to the database itself. Then i got this code for the search part
Code:
SQL = "SELECT Description FROM Table1 where Barcode = '" & txtBarcode.text & "'"
What i need to know is:
1) Is the code for the search right.
2) How to get it so the description for that barcode is displayed in a listbox.
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