I have used this piece of code for connecting to the database..It is showing error like The ConnectionString property has not been initialized.
Dim sConnString As String = "user id=" + sUserID + ";password=" + sPwd + ";initial catalog=" + sDatabase + ";Connect Timeout = 30" + ";Pooling=true;Max Pool Size=" + MaxPoolSize + ";Min Pool Size=" + MinPoolSize + ";"
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Dim Current As String
Current = Directory.GetCurrentDirectory()
con.ConnectionString = "PROVIDER = Microsoft.Jet.OLEDB.4.0;Data Source = " & Current & "SchoolMaticsDatabase.mdb"
con.Open()
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If tab index is changed the sub TabSelect() is called also. One other thing is that the program checks the day of the week and correctly displays the tab corresponding to that day. On Monday this code was working fine, as soon as it hit Tuesday this error cropped up.
I've looked at a lot of posts on different forums where others have received the same error. Most say they were not referencing the connectionstring from the web.config file correctly, or they were trying to open the connection before setting the connectionstring. Well, if that were the case for me, then how does it work on two different systems, but not on the third? It works on my development PC and on the development server, but not in the production environment. The difference is the web and DB server are separate physical servers in my production environment and on a single server for development. My setup, error message and code will be listed below.
I can simulate the error on my PC if I rename the connection string in either section of the web.config file (appsettings, connectionstrings) to something else. You will see how I have tested both below.
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I have a web application that works perfectly on my local machine but not once Ive uploaded to the hosting server I get:
Server Error in '/' Application.
The ConnectionString property has not been initialized.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: The ConnectionString property has not been initialized......
I have a web application that works perfectly on my local machine but not once Ive uploaded to the hosting server i get:Server Error in '/' Application.The ConnectionString property has not been initialized.Description: An unhandled exception occurred during the execution of the current web request.review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: The ConnectionString property has not been initialized.Source Error:Line 423:Dim conn As New SqlConnection(connstring)
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i get error " the connection string property has not been initialized" while inserting. am using MS access as database.
View 4 RepliesI keep getting an error that the ConnectionString is not initialized.
Here is my
'* Configure data adaptor and fill data set
sqlDABC.SelectCommand = sqlCmd
sqlDABC.Fill(dsBC, "Supplier")
In the form load event, I connect to the SQL Server database:
Private Sub AddBook_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
myConnection = New SqlConnection("server=.SQLEXPRESS;uid=sa;pwd=123;database=CIEDC")
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when i got to ADODC and try to go to connectionString in the properties of ADODC, the ConnectionString Dialog Box will not open when i click on it its wants me to type some kind of text. However on tutorial it clearly states that a dialog box should open up.
View 5 RepliesI've got this code and it opens the database connection in debugging (and i've used the wrong password to test that it fails) but when i come to ExecuteNonQuery I get this error
ExecuteNonQuery: Connection property has not been initialized.Here is my code.VB.NET
Public ConnectionString As String = "Data Source=JOHN-PCSQLEXPRESS;Initial Catalog=RLNZ_11;User Id=App;Password=Password;"Dim connection As New SqlClient.SqlConnection(ConnectionString)connection.Open()
Dim command As New SqlClient.SqlCommand("INSERT INTO news (ID, NewsID, NewsTitle) Values (@ID, @NewsID, @NewsTitle)")command.Parameters.AddWithValue("@ID", "")command.Parameters.AddWithValue("@NewsID", NewsID)
command.Parameters.AddWithValue("@NewsTitle", NewsTitle)command.ExecuteNonQuery()
this code is in the button click , i get each data out using spiltbut i encounter error at "cmd.CommandType = CommandType.Text"
Dim conn As New SqlConnection(GetConnectionString())
Dim sb As New StringBuilder(String.Empty)
Dim splitItems As String() = Nothing
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The code below will throw an InvalidOperationException: The ConnectionString property has not been initialized. The exception is thrown at the line calling Connection.Open() in the Load method. If I use the try-finally statement instead of the using statement, everything works correctly. Can anyone explain why the exception occurs with the using statement?
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i need to update my data using stored procedure here is my code :Try
con = getconnect()
con.Open()
sqlcmd = con.CreateCommand
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my problem is first of all i created a button and a datagrid to display the mydb.mdb in it the code behind that is as follows when i click on button the students table from mydb.mdb (which resides in my pc) needs to display in datagrid
<code>
using System;
using System.Collections.Generic;
using System.ComponentModel;
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the error is at Line: dbReader = cmd.ExecuteReader();an the error is :ExecuteReader: Connection property has not been initialized.
As part of the application I'm writing in Visual Basic, I have written code to display records in text boxes and cycle through each of them one record at a time. I'm having trouble getting the code I've written to update records to work however.
VB
Public Class frmRecords
' VARIABLES TO AID NAVIGATION THROUGH RECORDS
Dim moverow As Integer
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At the present time I get an error that says "The DataAdapter.SelectCommand property needs to be initialized"
I am trying to insert the information from comboxes, check boxes, and date and time picker. I am getting the following error when I hit submit button. "ExecuteNonQuery: Connection property has not been initialized. - system.data" I am sure I am making some silly code mistake that I am not able to figure out.
Dim icount As Integer
Dim SQLstr As String
Try
SQLstr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:ADAccountDel.mdb;"
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I'm trying to get a grasp on it. Anyways, i'm having the an error for the cmd.ExecuteNonQuery() it gives me an error message as follows "ExecuteNonQuery: Connection property has not been initialized."
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
Dim cmd As New OleDb.OleDbCommand
If Not cnn.State = ConnectionState.Open Then
cnn.Open()
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Im just getting user to passing in varibles to SQL i have the below connection string and its throwing an error saying "The SelectCommand Property has not been initialized before calling 'Fill'
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View 9 RepliesError in VB code "Name of field or property being initialized in an object initializer must start with '.'_"
View 3 RepliesI have reviewed the prior post on this topic and am confused.
Private Cn As sqlConnection
Private Cmd As sqlCommand
Private Da As sqlDataAdapter
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This one copied from microsoft web site, is this command working...? Error like " Executive Reader Requires.......Transaction property of the command has not been initialized..."
I am creating an login page connected to a database. I am using access ODB. the problem is, if the user makes an wrong input, and the invalid data message box appeared, when typing the data again, and press ok, the following exeption occured:Not allowed to change the 'ConnectionString' property. The connection's current state is open.[code]
View 3 RepliesIm getting "connection property has not been properly initialized" error message on command2.ExecuteNonQuery().
I Have an SQL query which displays its result in a grid view (one result only) I'm attempting to get this result to update the database with this particular result from the SQL query
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When i am try to execute following code it gives "ExecuteNonQuery: Connection property has not been initialized" error,
Try
Dim cmd As New OleDbCommand
Mycn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:\MILIND\Structure\Reports_DB.mdb;")
Mycn.Open()
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Public Class LoginForm1
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
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Dear friends I am new in .net world and I am trying to display a single row to a literal. I prefer VB so my code is as follows but I'm getting the error "ExecuteReader: CommandText property has not been initialized".I also tried sqlCmd.CommandText = "getLastModificationDateTime" without the EXEC statement
View 3 Repliesi have this code in form1 at buttonpreview
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i have problem with my code
here is my code
Public Sub increment()
Dim dr As SqlDataReader
If con.State = ConnectionState.Closed Then
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Public
Class Form1
Dim conn
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