Storing Data If Connection Of Database Fail?
Sep 5, 2009what is alternative way for storing data if connection of database fail in vb.net application
View 3 Replies
ADVERTISEMENT
Storing A Database Connection String Into Settings In A .net DLL Data Layer?
Mar 4, 2011I've always used this approach while implementing data layer DLL for web application:
1) put datasets into the dll project
2) use a helper class with a method like this:
public shared sub settCnnStr(strconnhere as string)
My.Settings.Item("connectionString") = strconnhere
end sub
3) when I need to use the dll I call a method like this (usually into global.asax):
xxxxxxx.helper.setCnnStr("yyyyyyyyyyyyyy")
This method always worked for me nicely but I'd like to know if this method could have serious drawback or if there's a better solution.
Storing Data From Vb To Access A Database
Nov 27, 2010I am using an Access database and vb.net 2010. I have created a table in the database with columns for title, datein, dateout and roomnymber. In vb.net 2010 I made a distinguished title = combobox, datein and dateout = DateTimePicker. When I click on F5, an error occurs: INSERT INTO Syntax Error in statement. [Code]
View 1 RepliesStoring Textbox Data Into The Database?
Jun 20, 2012i simple want to store the textbox data into the dataset .after that i want to fill using adapter into the sql server table
View 11 RepliesStoring Data In Local Database Embedded To App
Aug 9, 2011I am about to develop an application in vb.net 2010, until now I used to connect to database server to manage my data . Now i need to develope an .exe which could run in any pc, so I need somehow to store the data in a local database which is embedded to my application, I see .NET has a local database. My question is a right choice to use a local database for these kind of solutions?
View 4 RepliesStoring Data From A Database Into A Variable To Perform Calulations?
Aug 23, 2011i am trying to write a program which reads a data from the database and perform some calculations. what i am intending to do is when a user selects an item from a listbox and clicks the submit button the program, calls a function to calculate using the value stored in the database and display the result in a textbox.the problem is i cant store the data retrieved from the database into a variable so that the calculations can be done. i am using vb and microsoft sql server.can anyone tell me how do i store the data retrieved by the query into a variable.
View 12 RepliesSql - Storing Connection Strings In Registry?
Nov 24, 2009We decided to use the registry for handling our deployment with connection strings in our VB.net application.
The requirements are:
If the program cannot connect to the server, first check the registry for a connection string. IF not, create the folder and fill in the name, type, and data. Make sure its encrypted.
I have never edited or created anything in the registry.
Connection For Data INSERT Into The DataBase?
Jul 19, 2010I verified data types that are being inserted to insure that this is my problem. I dont see any exception errors.Am i missing a veriable or something that is related to my connection.
Imports System.Reflection
Imports System.Data.SqlClient
Imports PSXSTL.Data.DataAccess
[code].....
Normalize Data In Database During Connection?
Dec 17, 2009how to normalize data in database during connection
View 1 RepliesStoring 2005 Connection String, Username And Password Outside The Application?
Aug 13, 2009Does anyone know how to store the connection string in a file rather than hard coding it in the application. For example i have declared this connection string in the form to connect to oracle database and it works. But i assume this is not the right way to go by if one is looking for more secured environment.
strcon = "Provider=MSDASQL;" & _
"Driver={Microsoft ODBC for Oracle}; " & _
"CONNECTSTRING=(DESCRIPTION=" & _
[code].....
Create A Data Connection To A Database In SQL Server?
Sep 28, 2011I have Visual Basic 2010 Express and SQL Server 2008 R2 (not Express) installed on my Windows 7 machine. In Visual Studio, I am attempting to create a Data Connection to a database in SQL server. Server Mgmt Studio is not running. When I attempt to add a connection in Database Explorer, to the AdventureWorks _Data database, I get the message "This file is in use. Enter an new name or close the file that's open in another program." There are no programs running except VB, except maybe for the SQL Server engine running the background.Please note that I can open and access tables within a database in code
within Visual Studio, I just can't add a connection in Database Explorer.Am I doing something wrong? I've been very frustrated on this issue for a long time
Local Database Connection/Data Extraction?
Mar 23, 2012I've been looking over a bunch of code snippets and I'm just not understanding what is going on there.anding the connection, reading/manipulation, and closing pI keep reading all about these DataAdapters, Ole and Sql and Sqlce and I don't know which to use or whatever.I made a database in VB.NET 2010 that came out as database.sdf and I selected the Local Database option (I assume this is relevant?). I then populated the database with a row of data with column titles and a primary key. The table contains many different columns, but for test purposes, the following is relevant:
DB Name: db_test
Table Name: Locations
Primary Key Column Header: CITY
[code].....
Retrieve Data From A Database Using Adodb Connection In VB?
Feb 3, 2010i wanna know how to retrieve data from a database using adodb connection in VB.
View 1 RepliesVS 2005 Retrieving Data From A Database Connection?
Apr 12, 2010I have a database (Seeds1) that is connected to my project. I have gone in manually and entered data in to my database which is an Access. How do I retrieve information from my database into my program.
View 2 RepliesAsp.net - Copy Table From One Data Connection And Paste Into Database In Another?
Dec 23, 2011I have a table I created in SQL Server Management Studio. I had to create it there because I needed to use a function for an alpha-numeric ID column that increments itself. I then exported the table, but had to use my local server. Now, in visual studio, I have the local server connection that contains the table I want to copy to a connection for a remote server. I can right-click and select 'Copy', but I can't right-click and 'Paste' into the database I need.
View 2 RepliesBest Connection Code For Retrieving / Updating And Deleting Data From Database
Mar 15, 2012I start my project in vb.net backend is sql server i have completed my design now i start my coding but i am confused for connectivity code whether i used dataset or datable which is good? please give me best connection code for retriving,updating and deleting data from database..
View 1 Replies'System.Data.OleDb.OleDbException' Was Unhandled When Database Connection Is Opened?
Dec 18, 2011During Runtime when it tries to open the connection it throws up this error.System.Data.OleDb.OleDbException was unhandled'
View 9 RepliesVS 2008 - Have To Open And Close The Connection And The Data Reader While Access The Database?
Apr 21, 2009When using SQL connections in my program, will I have to open and close the connection and the data reader each time I want to access the database ?
[code]...
Data Base Wizard Fail To Connect?
Jun 7, 2010I'm just in the process of upgrading to the .net system and beginning my first database project.When i try usng the Database connection Wizard i get the following error "See attachment"The data base is a .mdb file. Seem to work fine in VB6
View 1 RepliesCopy Opened Database - Application Gets It's Data From A Mdb-file And The Connection Remains Open As Long A Person Works?
May 14, 2010The fact is I'm making an application, which users can install by using a Setup file...once installed the data in the database can be updated by a centralized server. To do this, they can insert a DVD/CD-ROM and export the necessary data towards it. I need to do it that way, because some of the users who really need this data will be using stand alone computers.The application gets it's data from a mdb-file and the connection remains open as long a person works with the application (maybe not the best way to do, but I know :-) )...when the user uses the application, he can perform an export...this exports the .ini-file and pictures (which works fine), but he also needs to export the mdb behind the application...I already tried connection.close() before and connection.open() after the System.IO.File.Copy...but that doesn't seems to work.
View 2 RepliesDisplay Connection Properties Dialog For Connection String Browsing(for Database) In Run Time?
Feb 5, 2010Is 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.
Sql Server - .net Program Dataadapter Connection Closes After Fill But Database Still Shows Connection?
Aug 19, 2010After running the following sub (VS debugger), I try to detach the database in SSMS, but it shows the connection open still and won't let me detach. If I close program in debugger, the database shows no connections. I check the dataadapter's connection in the finally block and is shows closed. What gives
Private Function ClientMasterDBFiles(ByVal MasterClientDBConnection As String, ByVal DBName As String) As DataTable
[Code]...
Reading Data From A Socket (as Bytes) And Storing Data In A String?
Nov 29, 2009I am reading data from a socket (as bytes) and storing this data in a string. Then later i need to access specific bytes within the string and do some math with them. However the bytes that I read back from the string are not what I am expecting.
[Code]...
[2008] Error - Unable To Read Data From The Transport Connection: The Connection Was Closed
Mar 15, 2009I have a simple scraper. It works on some websites, but on some there is this Error:
Quote:
IOException was unhandled Unable to read data from the transport connection: The connection was closed
It is occuring at "Dim htmlresults As String = Urlcontents.ReadToEnd()".
'Create the HttpWebRequest object
Dim req As HttpWebRequest = WebRequest.Create(URL)
'Set the timeout to 1 second (or 1,000 milliseconds)
req.Timeout = 10000
[code]....
Asp.net - Storing .Net ArrayList In Database
Mar 21, 2012I have a vb .net ArrayList that I would like to store in one field on my Ms SQL 2008 database. Is it possible to put it in and get it back out as an ArrayList? I'm guessing i need to break down the Array some how and store it as a string, then rebuild it when reading back as i dont see any datatypes for sql that are for arrays. Which is a bummer for me! edit - The ArrayList stores a set of quote ID's. There is no limit to how big it is so it could hold 1 or 1001 different ID's
View 3 RepliesDatabase Storing Of Fields?
Aug 15, 2011i am making a project and in that getting storing and loop problems there are two fields serial no and quantity when quantity is entered serial number must be asked then only and the number of times quantity is entered that many times serial number must be asked also serial number is from to too like 1 to 6 or 1 to 5 so i have to taken 2 textboxes serialfrm and serialto to store but now the problem is that i am not able to write proper code for it either it doesn't get saved to the particular name to which both fields belong or it keeps saving without stopping.
View 2 RepliesStoring Barimage In A Sql Database?
Jun 23, 2011i am generating a barimage and storing in a database i am able to create a barimage and store in a local drive but while transferring i am facing difficulties my code is
con.Open()
barcode = New BarcodeLib.Barcode.Linear.Linear()
barcode.Type = BarcodeLib.Barcode.Linear.BarcodeType.CODE39
barcode.Data = TextBox1.Text
[Code]....
Storing Image In Database?
Dec 18, 2009how to store images in database using VB.Net?
View 2 RepliesChallenges Storing Collections Value Into Database
Mar 22, 2010Hello All,
Can anybody help me, i am having challenges getting collections value into the database
Here is my sample code. but is not working at all rather is crashing the applications
Dim collections As New System.Enrolment.CustomerBiometricsCollection()
collections = Me.PrintCaptureWizard1.ShowDialog()
Dim dbs As New DBClass
Dim mee As String
mee = dbs.ConnectionString
Dim conn As New SqlClient.SqlConnection(mee)
conn.Open()
Dim ds As New SqlCommand("Custoon", conn)
ds.CommandType = CommandType.StoredProcedure
ds.CommandText = "CustBiometrics"
For k As Integer = 0 To collections.Count - 1
ds.Parameters.Add("@TemplateID", SqlDbType.UniqueIdentifier).Value = New Guid(TextBox1.Text)
ds.Parameters.Add("@TemplateIdentifierID", SqlDbType.UniqueIdentifier).Value = (collections(0).TemplateId)
ds.Parameters.Add("@CustomerID", SqlDbType.UniqueIdentifier).Value = New Guid(id)
ds.Parameters.Add("@Template", SqlDbType.Image).Value = collections(0).PrintTemplate
ds.Parameters.Add("@TemplateSize", SqlDbType.Int).Value = collections(0).Size
Dim dr As SqlDataReader = ds.ExecuteReader()
dr.Close()
Next k
conn.Close()
MessageBox.Show("Record Inserted")
Storing And Retrieving Images In Database?
Oct 5, 2011Here is the code I used to store an image in my database (SQL Server 2008 R2) using VB 2010. The images get stored but the problem is the clarity of the image is lost when retrieved and seen in a picture box.
Public Function InsertUpdateImage(ByRef _SqlConnection As System.Data.SqlClient.SqlConnection, ByVal _Image As System.Drawing.Image, ByVal _ImageFormat As System.Drawing.Imaging.ImageFormat) As Integer
[Code]....