VS 2005 Checking Database For Row
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?
View 2 Replies
ADVERTISEMENT
Aug 4, 2010
Is there any better performance by checking for a true value like this:
[CODE]..............
Than like this:
[CODE]..............
View 5 Replies
Apr 2, 2009
Now that I know how to send e-mail, how do you download it from the e-mail server? My program will have the password and all.
View 1 Replies
Dec 2, 2009
I think this is a really simple question to answer but I can't find a better solution. Basically I am importing data from an external source and as I go through importing each for I am doing a for loop to see if the row already exists; this is taking a life time and I feel it is a very simple way of doing it. Is there a better way to see if a row already exists using specific columns and key indexes?
View 5 Replies
Mar 7, 2009
I have a form with seven tickboxes - one for each day of the week - each one saved in my.settings.monday, my.settings.tuesday, etc Now I need to check if something should happen today and the code I'm using (below) seems very longwinded. Can anyone help 'tidy it up'?
If Now.DayOfWeek = DayOfWeek.Monday And My.Settings.monday = True Then
'do it
End If
[code]....
View 10 Replies
Jan 27, 2010
I have a function to check for internet availability where I use:
My.Computer.Network.IsAvailable
However it only works in my computer. If I install the application in another computer, the check does not work. Does it has anything to do with My keyword?
View 3 Replies
Feb 20, 2009
In my application I load a CheckedListBox from text file apart from looking at the form, how can I trap the error of not completing the action?
View 1 Replies
Feb 24, 2009
Case: I have one ComboBox which i fill up by using DisplayMember, DataSource with DataTable.
[Code]....
When user key-in in ComboBox (not select from the list), I check with above all possible but still got nothing. According to my knowledge, .Contains(cboStudent.Text) should work. Right?
I out of idea to check this checking.
View 4 Replies
Sep 1, 2009
I have added reference to few dlls in my VB.net Project. When I check into Visual source safe and get latest version from another machine, VS.net 2008 throws errors.I have to add the references again in that new machine. Is there anyway where I can keep the references in spite of files checked in to VSS?I need to send copy all the files to production server and we don't have VS.net on the production box to add reference and build the application.
View 2 Replies
Mar 25, 2009
My application uses 12 checkboxes. Dependant on the status (checked or unchecked) different action are required. I can't seem to be able to structure a for next loop to do this.
View 7 Replies
Jul 23, 2009
I want a code that checks if there are any files in a Folder. So I want to specify the folder name.
This is what it should do:
It Checks if there are any files in the folder (Data)
If there are no files in folder:
Form2.Show()
If there are files in the folder:
MsgBox ("Welcome", MsgBoxStyle.OkOnly, "Welcome")
View 3 Replies
Jan 5, 2010
Is there a way to check whether a datagrid is assigned a datsource. How can I distinguish a unassigned datagrid from a datagrid that is assigned a datasource.
View 2 Replies
Jun 25, 2009
how to check null excel worksheet?
View 2 Replies
Mar 13, 2010
I have written a code for sending emails using my vb.net application,ok.Now i want to inform my client if and only if he is not connected to the internet before the sending emails.so it means the purpose of my code will be to check if he is online or nt and if not then inform him to get online and then try sending the email.How to do this?
View 5 Replies
Mar 19, 2009
How I can check when someone uses the standard paste function via rightmouseclick? I want to check something before the text can be pasted.
View 3 Replies
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.
View 3 Replies
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]...
View 2 Replies
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.
View 2 Replies
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?
View 1 Replies
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.
View 5 Replies
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].....
View 2 Replies
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!
View 3 Replies
Jul 13, 2009
I m selecting the folder & playing all the files in the media player, of that folder. As u know folder contains all types of files including text,zip,image & so on. So I want that when URL that is assigned to Media Player is .txt,then i assign any default image from resources. I do not want to check extensions- Currently I m checking the extension of each file before paying but i dont want dat.
[Code]...
View 5 Replies
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
View 14 Replies
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]....
View 2 Replies
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]...
View 3 Replies
Nov 30, 2010
database - Checking if INSERT INTO statement was successful
View 11 Replies
Jan 11, 2010
code for sql server database offline checking from vb.net for restoring backup
View 1 Replies
Nov 22, 2009
I had made a project in VB.NET 2005 with SQL SERVER 2005 used as database. Now i want to make a setup of this project but i am unable to integrate sqldatabase and .net framework in this setup project. Is there any way to do this. Because it is assumed that the client does not have .NET Framework installed nor he has SQL Server on his system and the worst condition would be he does not have even internet connection from where these two setups can be downloaded if we give the condition for downloading these programs from the net if the client does not have these programs installed on his machine.
View 2 Replies
Jan 14, 2011
I have code on log in form but it only get the latest data on username and password column on my database
Here is my code
Public Class Users
Dim MyLogIn As New myRecords
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[CODE]...
This is my connection:
Imports MySql.Data
Imports MySql.Data.MySqlClient
Module myconnect
[CODE]...
This is my record:
Imports System
Imports System.Data
Imports MySql.Data
Imports MySql.Data.MySqlClient
[CODE]...
View 1 Replies
