I would like to enable my app to run from a central database, but I dont want to recompile should the DB server change. Are my only two options saving the connection string to an XML file or the registry?
If so I think the XML file will probably be the way I go at least for me. I dont really want to mess with the registry. I just wanted to check what my options are.
1.is it possible to save the database connection string to the textfile so that user would be able to know where the database is stored?
2. Any way to let the user decide where the database is stored? Since usually we, the programmer write the database connection string ourselves..
Between ODBC and OLEDB providers, which one is more flexible at both the application level, and at the report level using crystal report?
View 1 RepliesIs it possible to use a file browser to load a connection string when the start form is loaded?
Using ofb As New OpenFileDialog
If ofb.ShowDialog = Windows.Forms.DialogResult.OK Then
Dim cConnectionString As String = ofb.FileName
[Code]....
I am doing a project for part of my coursework which involves the creation of a series circuit designer.
I am having some trouble with the saving and loading functions; I had intended to save them to a text file with commas separating the component name and the value (if any) attributed with it.
Grid(xcoord, ycoord, 0) contains the component name. Grid(xcoord, ycoord, 1) contains the attached value (resistance or voltage- components such as wires have a value here of 0)
Once the save button is pressed, the text file contains 50 rows of "0".
P.S. Let me know if any other parts of my program are required.
Dim comp(maxsize) as ccircuits[globally declared]
Const maxsize = 50
Structure ccircuits
[Code]....
I keep getting an IOException, because the file is apparently already in use. I'm pretty sure I closed every handle, and I don't know what to do.
High-Score
If haswon Then
Dim strFormat As New StringFormat()
[code]....
I need some help with this project I'm trying to get my program to load and save data to an online database and I haven't been able to find anything that helps me to much, I have the working code for a local database but this program will be being used to multiple people for our business I want everybody to be able to add data, delete data, and such as necessary...
Here is the code i have for opening the file on my local machine
Dim con As New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|data.mdb;")
but i can't get it to open from my webpage
I want to load images into a picturebox, save them into a database and display them again in the picturebox. This is the code I'm actually having problem with:
Private Connection As String = _
"Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=C:UsersclientDocumentsVisual Studio 2008ProjectsSavingsLoansCalc.mdb"
rivate Sub UploadButton_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles UploadButton.Click
[Code] .....
I'm getting this error message:
"Type 'Connection' is not declared"
On this line:
oConn = New OleDb.OleDbConnection( _
New Connection().getConnectionString)
in my Few small projects i have been using this code for connection to database in every forms.
Dim con As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|YTCARGO1.mdb;Persist Security Info=True")
i would like to ask where is the best place to save a mysql connection string.i want to be able to change the connection string(host,username,password) during runtime so if the server changes IP address i can change it.
View 10 RepliesIs there a way to display the connection properties dialog for connection string browsing(for database) in run time?
As I want the user to be able to connect to various database using the GUI.
I've got a database that's 13,000 lines long and I'm trying to load this into a string array when the program loads but it takes approx 5-6 minutes for it to load it.I've got a MS Access database or an Excel file that I can load this information from, each has two rows: SVONo, Description This is my current MS Access
[code]...
Does anyone have any idea of how to make it faster? Or does anyone have a better way?I did have the idea of loading it by letting the user select the first letter and then only loading the ones that begin with that letter but I've got 4000-5000 'S' ones and it still takes about 2-3 minutes to load it All I want is to load the data from the database or the excel file and then put the products into 'cboProducts' and the 'cboProducts AutoCompleSourceList' and the descriptions into the 'txtDescriptions' AutoCompleteSourceList and a string array.Then when the user selects a product using 'cboProducts' the description will automatically be put into 'txtDescription'.
column name = CustomerName
SQL server database name = SQLDEV6.
I have been given a task to create a application in vb that is supose to load data from a table named tblCustomers from a DataBase.
I am trying to load CustomerName and PrintStreamACNO from tblCustomers to my dropdownlist. I am not getting the correct syntax on the binding and displaying.
Imports System
Imports System.IO
Imports System.Reflection
Imports PSXSTL.Data
Imports PSXSTL.Data.DataAccess
[Code]...
Using - VB2008 Express, XP Pro,
Connecting to SQL 2005 across the internet
The walk throughs have several good explanations although I don't see any about connecting over the internet.
I used the wizard in VB 2005 to add my database. Under the "Applications Settings" area in VB my string is currently set to:
[Code]...
what is the connection string for Access for connecting Access Database with ADO.NET (For win app).
View 1 RepliesI've created barcode using barcode.lib downloaded from the net.i've used a picturebox in that picturebox i have created barcode using barcode.lib now i want to save that barcode as image in the database. There's a prblem while saving that image as bytearray in vb.net 2005 it takes null value of that barcode present in picturebox.i'am attaching both images
View 3 RepliesI have created a access database and have sucsessfully connected to it.I have three records in it (just for testing) and have got the BindingNavigator to connect to it as well.I can move through the (3) records that I have previously entered, and when I click on the Add Record button it zero's the text fields that I have displayed.When I enter NEW DATA it does not SAVE it.
View 7 RepliesConnection String Using .net 2005 With Sql Server 2000?
View 1 RepliesI am trying to connect VB 2008 express with sql 2005 standard edition on a reomte server. Is this possible or VB 2008 express version limits this Can some one guide me with the connection string to achieve this.
View 1 RepliesWhat is the connection string for the sql-Server express?
I did this
CODE:
But this connection string is not correct:
CODE:
What will be the correct one?
how to code for database connection in vb.net 2005?
View 3 Replieshow to code for database connection in vb.net 2005?
View 1 Repliesi have visual studio 2005 installed in my pc.i have sql server 2000 as database.i have expertise in client server software written in vb6.now im trying to do the same in vb.net.i dont know how to establish a global connection in vb.net.how to do that in vb.net?in vb6 i would just write a public function in a module and it remains throughout my application.so how can i achieve the same thing in vb.net.
View 4 RepliesI've developed a software using VB.net and SQL server 2005. This is the connection string that used. Data Source=MY-PC\SQLEXPRESS;Initial Catalog=studentInformation; Integrated Security=True But now i want to use SQL server compact edition. So what should i change in this connection string?
View 11 RepliesHow To Editing The "Connection String" in the Configuration file by the Code in the Runtime. This is my Code
My.MySettings.Default.Item("ConString") = "New Connection String"
My.MySettings.Default.Save()
This code can edit the Configuration file in the run Time but if I restart the system the Configuration file will return back to the first Configuration.
When connecting to data I always like to use the Configuration methods:
2005
Dim settings As ConnectionStringSettings = _
onfigurationManager.ConnectionStrings("csCambra_2")
[code].....
How do I assign a My.Settings.Item connection string to cmd.Connection connection string value?
Dim cmd As New SqlCommand()
cmd.Connection = My.Settings.Item("csStaffHoursWorked")
cmd.CommandType = CommandType.StoredProcedure
cmd.CommandText = "spSaveDeltekImport"
I am working on designing a SQL Server database connection class in VB.net 2005. The idea behind doing this will be so a developer can can call the class, pass it a stored procedure name along with the parameters, and get return values back (if any).
View 1 Replies