Error ExecuteNonQuery: Connection Property Has Not Been Initialized. - System.data
Apr 25, 2011
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;"
[code]....
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Dec 17, 2010
I'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()
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May 4, 2012
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()
[CODE]...
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Jan 27, 2012
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()
[code].....
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Jun 6, 2011
Public Class LoginForm1
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
[code].....
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Mar 17, 2012
i just learn about VB.Net in the last 3 months...when i try to create a Sql server to VB connection , that message appear..i've no idea what is that...this is my script:
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
Dim myConnection As SqlConnection = New SqlConnection
myConnection = New SqlClient.SqlConnection()
[Code]...
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Jun 15, 2010
Im trying to DELETE all records within a access table, this is my
[code]...
But it gives me the following error: ExecuteNonQuery: Connection property has not been initialized.
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Jun 15, 2011
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")
[code].....
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Nov 26, 2010
I want connect to dbf file.
________________________________________________________
Imports System.Data
Imports System.Data.OleDb
Imports System.Data.Odbc
[code].....
The warning is: ExecuteNonQuery: Connection property has not been initialized.
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Jan 31, 2012
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
[code].....
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Jun 6, 2011
i need to update my data using stored procedure here is my code :Try
con = getconnect()
con.Open()
sqlcmd = con.CreateCommand
[code]......
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Dec 19, 2011
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;
[code]....
the error is at Line: dbReader = cmd.ExecuteReader();an the error is :ExecuteReader: Connection property has not been initialized.
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Mar 16, 2012
Im 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
[Code]...
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Jun 6, 2011
i have problem with my code
here is my code
Public Sub increment()
Dim dr As SqlDataReader
If con.State = ConnectionState.Closed Then
[code].....
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Jun 30, 2011
Public
Class Form1
Dim conn
[code].....
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Nov 3, 2011
Why i got this error ?? ExecuteScalar: Connection property has not been initialized
the red section got error.
my code
Dim sql As String
Dim sql1 As String
Dim sql2 As String
[Code].....
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Mar 3, 2008
I have been given the task of debugging someone else's program. It previously ran flawlessly on a 32-bit Windows XP system, but now we are steadily switching over to 64-bit systems and this program has "spit the bit" so to speak.
This is App.Config.xml
Code:
<configuration>
<appSettings>
[Code] .....
The problem is I don't know my alternatives are. System.Configuration.ConfigurationMananger.AppSettings doesn't work.
I've tracked the problem to the last line Con.Open().
Code:
Public Function get_quotes(ByVal strDBConnection As String) As DataSet
Dim con As SqlConnection = New SqlConnection(strDBConnection)
Dim strQuery As String = "SELECT qmpQuoteID FROM Quotes"
Dim da As New SqlDataAdapter(strQuery, con)
Dim dsQuotes As New DataSet("quotes")
Try
con.Open()
The error is "The ConnectionString property has not been initialized."
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Mar 10, 2011
I have the following code for a web page that I'm working on:
Imports System.Data.SqlClient
Imports System.Data
Partial Class _Default
Inherits System.Web.UI.Page
[code]....
when the buttonclick event fires I receive the following error:
Error:System.InvalidOperationException: Fill: SelectCommand.Connection property has not been initialized. at System.Data.Common.DbDataAdapter.GetConnection3(DbDataAdapter adapter, IDbCommand command, String method) at
[code]....
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Jun 6, 2011
I am using MsAccess DB and Vb.NET 2008. This is a code to check the Database for duplicate entries but m geting an Error." Fill: SelectCommand.Connection property has not been initialized."
[Code]...
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Nov 2, 2010
1) My login screen is talks to a database and is supposed to verify the users credentials - instead i get this error and i dont know what to do next pleae help.. This error occurs on the line that says adaptor.fill(dataset, "0") ------Fill:selectcommand.connection property has not been initialized
Private
Sub
OK_Click(ByVal
sender As
[code]....
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Feb 9, 2011
when the codes below is run, when it loses focus, the error 'connection String Property has not been initialized' shows and when i commented on the lost focus section, and click on saving, the sme error shows and ' da.Fill(ds, "Branch")' is highlighted.
[Code]....
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Dec 1, 2009
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?
[Code]...
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Feb 24, 2011
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 + ";"
[code].....
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Jan 3, 2011
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
[code]....
At the present time I get an error that says "The DataAdapter.SelectCommand property needs to be initialized"
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Mar 15, 2011
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'
[Code]...
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Nov 30, 2008
i make a class and when i call on form then that error occurs "ExecuteNonQuery requires an open and available connection, the connection Current stat is close "
Class Code isImports System.Data.SqlClientImports System.DataImports System.StringPublic Class DatabaseKits Dim Cn As New SqlClient.SqlConnection Public Function BuildConnection() As Boolean Try Cn.ConnectionString = "Persist Security Info=False;Integrated Security=True;Trusted_Connection=Yes;database=BizAimsPro2008;server=Server-2k3s" BuildConnection =
[code]....
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May 19, 2010
My application requires a user to log in and allows them to edit a list of things. However, it seems that if the same user always logs in and out and edits the list, this user will run into a "System.Data.SqlClient.SqlException: Timeout expired." error. I've read a comment about it possibly caused by uncommitted transactions. And I do have one going in the application.
[Code]...
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Feb 9, 2010
[code]......
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Jun 16, 2009
Error in VB code "Name of field or property being initialized in an object initializer must start with '.'_"
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Aug 23, 2011
Dim Current As String
Current = Directory.GetCurrentDirectory()
con.ConnectionString = "PROVIDER = Microsoft.Jet.OLEDB.4.0;Data Source = " & Current & "SchoolMaticsDatabase.mdb"
con.Open()
[code]....
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.
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