Greetings. I have an application where the user can open a form and view data from a SQL2005 database. I'm developing with VB2005 Express Edition. The form has a list box with its DataSource = bsJobData. I have 3 icons below my form:dsJobInfo with its DataSetName = JobInfoDataSet. JobInfoDataSet is something I can see on my Data Sources tab.
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I have already connected my database and have completed multiple forms and reports.Just discovered that I missed adding ONE field in an Access table.Since it is attached how can I add a field to the database without disconnecting it? If I do disconnect it and reconnect will I have to redesign all my forms and reports?
View 1 RepliesI'm populating a listview with a list of databases for the selected instance.
What ever I do I cannot get SMO to disconnect from my SQL2008 instance...
server.ConnectionContext.IsOpen returns false but server.ConnectionContext.InUse returns true?
Here's my code:
Public Sub UpdateServerList()
LVDatabases.Items.Clear()
Dim serverName As String = SQLServerName + "" + Instance
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I am using VS2005, using VB.Net?I just created a local copy of a project on my drive. The original copy is being worked on by another developer.I deleted the .vspscc & .scc files?However, everytime I make a change, I get the message that the file is locked, and exclusively checkout by another developer. How can I make changes to the project, that I have copied to my drive. I need to disconnect it from VSS.
View 2 RepliesTCP Server/Client - Disconnecting Sockets
View 3 RepliesI've been attempting to create a Chat client/server for a while and I found some good tutorials for Visual Basic Express 2008. But I would like my client to be able to disconnect and have the server acknowledge the fact (and send the same message that it does when someone connects) that a client disconnected.
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I have a USB 3G dongle from Orange which is like a dialup connection, rather than a wireless connection.
Is there anyway in vb.net to control this connection? So disconnect is and recconnect it etc?The reason for this is automatically getting a new ip address without manually disconnecting in network connections.
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
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This is my connection:
Imports MySql.Data
Imports MySql.Data.MySqlClient
Module myconnect
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This is my record:
Imports System
Imports System.Data
Imports MySql.Data
Imports MySql.Data.MySqlClient
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I recently upgraded the MS SQL Server installed on my personal computer from 2005 Express to 2008 Express. Problem is when I try to add an SQL database file to a project using VS 2005 I get an error message saying that the version of my database server is not supported, I must have SQL Server 2005 Beta 2 or later installed. I didn't do it yet but I'm pretty sure that when I open the other projects that I included a database file to it, I'm going to get the same error.
My question is it possible to have two SQL Servers installed on my machine? If so, is it a good idea to have two DB servers in the same machine?
I want to move my programs and the database to another computer and hard-disks. It looks to me as though I nearly have to re-create the controls and rewrite some of the code to make it so the programs still work after the move. At least with ODBC all I would change was the DSN definitions external to the programs. Is there an easy way to move or rename a database without loads of work?
View 3 RepliesThis program is very difficult for me, but I must get threw it or I cannot finish... What I am doing is making a Database of foreign Languages with the spelling of the words and the pronounciation inside the database... The USER enters a paragraph of words into the translator textbox and pushed translate. The program has a DATABANK of words with the phonetic spellings and matches the word, then translates to phonetics. The problem is that new words keep appearing inside the language. So I incorporated a Database of 2 fields
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When I am developing an application and I use the 'Data Source' tab to create a database, will that database be automatically created when I use the software on another machine?
View 1 RepliesI'm trying to use LINQ to SQL in Visual Basic 2010 Express.
It allows me to create the .dbml file, but in order to drag items from the Database Explorer window to the design surface, I first have to get my database listed in the Database Explorer!(this is a remote SQL Server database - not a local .mdf)
I already have a good, working connection string to the remote SQL Server database, but that doesn't help me when I'm trying to generate the DBML at design time.
Can anyone tell me how to get my remote SQL Server database identified in the Database Explorere window? When I try the "Add Connection", I am limited to Access, SQL Server Compact, or SQL Server Database File. If I try to enter the IP address & port of my DB Host I get a 'database file does not exist' message. Doesn't seem to want to let me point to a remote DB server...
In vb.net I am using password protected database with following connection stringconnetionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:vaivaiDB.mdb;JetOLEDB:Database Password=secret;"Database access works fine on the development machine.
View 2 RepliesWhen I install my application, some forms are unable to connect to the database.
I say some because, when my login form works totally fine. Authentication happens.
But once I go into the main application, and open other windows, I start to get these error mesages:
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Friends I have Developed my Data base Project on vb6, using adodc and datagrid using ms access database file, it was working nice in vb6, I also put Search box there and used adodc1.recordsource="select * from table" sql query.
later i needed to convert it in vb.net I converted it, every thing is working fine, but one problem appears, an adodc's Recordsource query for searching records is not working, it only works if there is data in dataset (Datagrid),suppose once i pressed search button to search record and if no record found then dataset / datagrid becomes empty, now i wanted to search an other record with other name, but this time it does not work and following error appears Either BOF or EOF is True, or the current record has been deleted. Requested operation requires a current record.
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I am sitting with a situation that I have to combined (3 years) for 26 site of 29000 database files where there is 1 table in each data base called RECDATA, I need to combined all that data Into one database file called RECDATA.
For example there is a database called DB1 with a REDATA table inside it, and then DB2 with a RECDATA table inside it, DB3 with a RECDATA table inside it est. So I need to put all the Recdata into 1 Database file, or to copy all the RECDATA from all the database files to 1 RECDATA they all have the same columns All I need is to get all that data into 1 RECDATA table.
The program where this database comes from is a voicerecording system creating a new database every day. There is 1 database just for indexing (to view the recordings) and then the daily database is where the recording lies in, that Colum is called RECFILE. I will give you a example of the 2 database.
I have a report made in Crystal Reports XI. The report is generated and exported to PDF in visual basic script using COM interface. Generally everything is running smoothly, but in one case generation breaks with error: Failed to retrieve data from the database. Details: [Database Vendor Code 9421]
Database used is MSSQL 2005 connected over ODBC to CR XI. When I am opening report with exactly the same parameters in Designer, everything works fine.It looks like it is data related, but it is hard to trace since the whole report is pretty sophisticated. Anyway I spent half a day on crawling over Dr. Google and it seems that he has no clue what might be an issue.
I have VS 2005 installed in my sytem fyi.We have two databases, say source database and destination database. The databases is in Oracle. Now we need to pull data from Source database, manipulate it and push it into the destination database on daily basis.We are planning to use VB .Net for this and would like to know if this is feasible. Using windows forms through VB .NET, is it possible to create a exe and schedule the exe on nightly basis to pull the data from source to destination.how to do this as for manipulation of data, there is no intermediate database for us?
View 1 Repliesi need to make a database application that can write/retrieve cells/datasets from/to a database i buyed a book in there was an example of how to create a database application while debugging i had the "Object reference not set to an instance of an object." error and it highlighted this code
objDataRow = objDataSet.Tables("KlantenTable").NewRow
now the problem is here i declare something later in the code i write to it
objDataSet.Tables("KlantenDataTable").Rows.Add(objDataRow)
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can anyone teach me how to save data in microsoft access database and retrieving it back from database?[code]so, how do i save it in that and how do i load their data by typing their ic no only..
View 5 RepliesI have created an access database which i want to search with vb.net, I tried a few thing but it didnt work as desired.
Firstly the program is suppose to display items in the database base on the criteria selected by the user. what i've succefssfully done so far is I've added a datagrid 2 combobox, 1 (searchcbo) with the columns in the database and the other (searchcbo1) will autoload the items under the column selected in and a button (searchbtn) but i have no clue of the code to put in the button. i also tried the fill method but that didnt work as i wanted to. ultimately i want a combobox with the list of columns and a textbox to enter criteria and of course a search button.
The searchbtn should act as the "WHERE" sql command, e.g. SELECT EmployeeNumber, Firstname, LastName, Phone, Location....etc FROM CallLog WHERE searchcbo.text = searchcbo1.text And display the results in the datagrid.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'CallLogDataSet.CallLog' table. You can move, or remove it, as needed.
Me.CallLogTableAdapter.Fill(Me.CallLogDataSet.CallLog)
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Ive created one database Sql Server Compact Edition 2005, with one table ("Cliente") I know that I can created my database good, but i have a problem saving information since three textbox, in my table(With columns "Nombre" "Apellido" "Cliente". In my form there is a button save ("Guardar"). When I do click in my button appear the next message : "The column cannot contain null values. [ Column name = Nombre,Table name = Cliente ] " and happen the same with apellido and Id_Cliente. And this happen becouse my code cant save the information....
This is the code
Option Explicit On
Option Strict On
Imports System
Imports System.IO
Imports System.Data
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And the code for my button is:
Private Sub cmdguardar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdguardar.Click
Dim myconnection As SqlCeConnection
Dim mycommand As SqlCeCommand
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I did the following
Imports System.Data
Imports System.data.OleDb
Public Class Form1
Dim con As OleDb[code].....
By this i can fetch only one row(the last row) of the access....how to modify the above code to fetch all the rows starting from the begining from the database..........
[code]....I have a dialog that comes up and asks for a reason for declining the business.I don't want the code to move on after not enabling the "me" until the reason has been entered and saved into the database. Also, at that point where it says "I WANT...." I want to copy the textbox fields into a new database and then delete this entry from the database, how can I do that. I am using VS 2008 and SQL.
View 2 RepliesI am using the tutorial posted here for my database testing. I have gotten it to display the data using a messagebox but it just goes through them 1 by one. I want it to display all the data from the database in a table on my form.
Using connection As New SqlClient.SqlConnection("Server=71.200.87.112MySQLExpress; Database=database_test;User ID=sa;Password=greddy6;Trusted_Connection=False;")[cod
I created a dataset and i am using OleDbDataAdapter to insert new values to access database. But when i close the program and after open it, values are not in the database. How can i solve this problem? Also, i have another problem. When i write codes that
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I am trying to copy a table from a network database to a local database. I used DAO and could check if the network table existed using a function that tried to assign a TableDef object to the table in question. If there was no error then I assumed that the table existed and the function returned true...Or it would error out and return false.I could then proceed with the copy or not as the case may be.I am converting the code to ADO.net and need to know how to check for a table. [code]
View 1 RepliesI have a form that cycles through a database table with next and prev buttons Database name is "China.accb" and the table is called Users Table Users has two fields, both text.One is called UserID and the otheris Password"am getting an error message when I try to click the next button that states: "Unable to cast object of type "System.String' to type System.Windows.Forms.Textbox'. I've highlighted the line causing the error below
Imports System.Data.OleDb
Public Class frmUsers
Dim intMaxRows As Integer
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before re-inventing the wheel, i want to ask you how i can do this best: I have a VB.Net application that uses a database connection to MS SQL Server 2005 (express version). There are users that input data with the application into the database lets say once to 2x an hour to once a minute. I want to do backups like this: Once a day or once a week (in the evening) a full backup, and whenever the program/user is idle for lets say 10 Minutes, i want to do an incremental backup (so that it does not take so long until he can work on after the backup).
There are no big security issues, just copying the backup data files to a network share / a different computer or server would be fine. i guess the average db size may be 300MB, but the daily increments about 1MB.
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