Error 91 On Trying To Retrieve An Adodb Field?
Jan 10, 2011
The following VB code is from an application that I am developing. It establishes a record set by executing a SQL query on a SQL connection (ADODB). On the first pass through, the statement fails with an error 91, I trap it and re-execute the sub and then the statement works! The statement that fails is italicized and bolded below.
Private
Sub LBTasksAD_SelectedIndexChanged(ByVal
sender As System.Object,
ByVal e
As System.EventArgs)
[Code]...
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Feb 3, 2010
i wanna know how to retrieve data from a database using adodb connection in VB.
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Jul 26, 2011
I have something strange occuring. The following code works 100% when run in VB2008 Express.When compiled and run onthe same system, it generates the above message.The codebasically opens a Access DB and loops thru the db There is a progress bar (also tried a simplelabel) to display progress using AbsolutePosition.
dbInUse.Open("Provider=Microsoft.ACE.OLEDB.12.0; Data Source=C:SCDBv4DataSCDBData.mdb")
rsInUse.Open(OpenCommandSQL, dbInUse, ADODB.CursorTypeEnum.adOpenKeyset, ADODB.LockTypeEnum.adLockOptimistic)
[code]......
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Nov 15, 2011
I am getting errors when I try to use this adodb.connection and command in my code. The error I am getting is saying that the connection and command are not defined. I read online that depending on your version of vb that you might use the "OLE" connection instead of ADODB.
Imports System.Text.RegularExpressions
Imports System.Data.OleDb
Imports System.Data.SqlClient
[Code]....
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Mar 7, 2012
After finish my software, when I was try to run in other computer the error was: Don't possible to get the file or assembly 'ADODB, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f711d50a3a'...How the best solution for this error? Just to put the last adodb.dll in the application folder?
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Oct 24, 2010
I'm trying to set up a database connection between an ASP page running VBScript, and I have found code to do this. However, the 'provider' attribute to the connection does not work. The code is below:
set conn=Server.CreateObject("ADODB.Connection")
<strong>conn.Provider</strong>="Microsoft.Jet.OLEDB.4.0"
conn.Open(Server.MapPath("mIndexDb.xls"))
set rs = Server.CreateObject("ADODB.recordset")
rs.Open "Select * From mIndexDbTable", conn
[Code]...
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May 24, 2011
Just got this error in my vb2008 programs when trying to install on other computers (customers running XP and Vista). I am on a Win7 computer and are using MS Access 2007 databases. Up to now everything was just perfect - but now.... Tried to search the net for solutions, but got a lot of mumbo-jumbo I can not understand. what to do in order to supply a set-up program which works.
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Jun 10, 2009
I have no experience with VS 2008 Express yet. But, I need to use it to make a small VB app for work that connects to an Access database and gets table values.I have no samples to work from. I keep getting the error: Type 'ADODB.Connection' is not defined. How do I create the reference to ActiveX Data Object?
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Feb 2, 2009
I want to retrieve a value from a field of a table. How can I assign this value in the text of a tooltip. The tooltip will appear when the user will move the mouse on a textbox.
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Mar 11, 2009
I could connect to the database alright. My problem is how to retrieve data into text boxes. In Vb 6.0 i could use the ADODC control to retrieve onto the textboxes as follows[code]...
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Sep 16, 2011
I'm a VB.NET newbie, and i'm currently building a .NET application.
[Code]...
How do i achieve the same in VB.NET (VS2010) in data binding mode?
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Mar 26, 2012
so below is my code. I am trying to get the autonumber generated in newdb into txtcallid field. the error i get is that the field is not unique. What i am trying to do is to get the form to fill the db witha new blank record, assign the auto number and then display that number with the blank record info in my form. I will be making it so that the data must be changed before saving so that the form will not be blank save for when it is loaded.
Imports System.Data.OleDb
Imports ChessyFunk1._5._1.ADODB
Public Class frmNewCall
[Code]......
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Oct 5, 2011
I am facing following problem with adodb Recordset
Error: Missing method 'instance void [WindowsApplication1] ADODB.Fields::Append(string,valuetype ADODB.DataTypeEnum,int32,valuetype ADODB.FieldAttributeEnum,object)' from class 'ADODB.InternalFields'
I am using 6.0 version of ADODB.
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Jul 14, 2009
I am using Visual Studio 2005 (Visual Basic) and MS Access 2003 I am trying to build an application in the lines of the book "Doing Objects in Visual Basic 2005" by Deborah Kurata. So, I have a Data Access Layer (DAL) Class Library that is separated from the business logic layer (business objects) Class Library. I try to add a new business object such as a "Customer" to the Access Database, where the "Customer" table has a PrimaryKey "CustomerID" which is an AutoNumber field. I am successful in writing the values to the database, but I can't figure out how to know the "CustomerID" of a newly added "Customer" so I can populate the business object with the respective values.
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Mar 13, 2009
How can i retrieve NULL Field [ Date Out ]in sql 2005 database to a Grid View in ASP.Net. I need this field to be edited by the user.
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Jun 13, 2011
I have a finished app that when built runs fine on my PC ... its when i try to use the app on another PC in the building here it doesnt seem to be working right at all and im also getting an error
[Code]....
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Apr 18, 2009
I hav a web service which pull records from a database and I am hosting these services in IIS which works fine but I am trying to retrieve the record and display the record in a listbox displaying the time field as the text for that record.I have created the following function
public sub get_data()
dim dt as new data.dataTable
dim service as ws webservice.webservice
[code]...
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May 2, 2010
I using ADO to get som values from a SQL DB one off the fields can have the value NULL And if i use:
txtinfo.Text = RS(
"info").value
Then i get an error.I have try with IS NULL - but that dosn't work
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Jun 15, 2011
following code to retrieve an image from a SQL Express 2005 DB.
While reader.Read()
Me.txtNaam.Text = reader("Naam").ToString
Me.txtOmschrijving.Text = reader("Omschrijving").ToString
[code].....
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Apr 13, 2010
I've got this code. But I keep getting an INSERT INTO error when I try to insert a new field into the database
Private Sub btnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
Dim recordsadded As Integer
Dim strSQLString1, strSQLString2, strSQLString As String
strSQLString1 = "INSERT INTO tblParts (PartName, PartPrice, Part Supplier) "
[Code] .....
My 3 datatypes are text values, and I have another form adding entries to my database in another table, which are all text values.
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Mar 11, 2010
CODE:
And the following sub routine is load in the Listbox_selectedindexchanged event
CODE:
And listitem class
CODE:
And subsequently I want to Design the select query by adding the three column i.e. First Name, Middle Name and Last Name in the Listbox and by selecting the list item that will show in text box.
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Feb 15, 2010
I am using 1 listbox and 4 text box. I want to retrieve data from my database i.e. ms access database into listbox I am firing the select query by using this code on Page Load event and list box selecetedindex change event which is following. [code]...
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Aug 19, 2009
At run time my application gives an error of "Conversion from type "DBNull" to type "String" is not valid. In my form only one field - Add_info is an optional field which might be filled or not by the user. Before, I had an error when an apostrophe was used so i updated the code as highlighted below. This in return removed the apostrophe error but generated an error whenever there is an empty additional field.
For irow = 0 To QryColSentDataGridView.Rows.Count - 1
If QryColSentDataGridView.Rows(irow).Cells(3).Value = True Then
Try
query = "UPDATE gprdsql.TblCollections SET system_time = '" & _
Labeldate.Text & "' where prac_no ='" & _
[Code] .....
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Apr 10, 2011
I keep getting the following error when I try to add new record into database (Access 2007)"The INSERT INTO statement contain unknown field name:'login'."I dont know whats wrong as the coding looks fine and the field login does exist in the database. Spent whole day trying to find the solution,
[Code]...
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Jun 18, 2012
I am getting an error where the data is retrieved from the MS Access Database "Date/Time" field.The attached the error. Other fields which have text data type are working fine
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Mar 8, 2011
I'm doing a simple calculator program calculating Pennies, Nickels, Dimes and Quarters. I made a Try-Catch statement so that if the user enters letters into the text boxes, they get an error message. However, if the user leaves one field blank, the error message still pops up. What's the code so that I can get Visual Basic to recognize that an empty field is the same as 0 so that that message doesn't pop up? [Code]. What do I need to add to it to get that Error Message to stop showing when the user doesn't enter a value into one of the text boxes?
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Jun 15, 2011
im getting error after I run an UPDATE sql query and the datagridview needs to update....not sure what the problem is. heres my code, first block is what the program does on load, the second block is where im getting the problem.
Code:
Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click
Module1.Main()
[Code].....
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May 6, 2012
Mine is a simple conexion problem but I dont understands what's happening I have another form in the same project which has no problems at all, I desided to create a form to use it as a base form named plantillav only to duplicate forms and intance the others from that one I put it's Modifiers Property = Protected in ortder to modify property values in the other ones I don't know if the process generated a failure.
I created the following strconn:
Public
Class
clientesc
[CODE]...
This table was exported from phpmyadmin (wamp) so it means is created and even with registers inserted directly from console, the problem is when I send from the application, with the following error that indicates that the name of the field doesn't exist or is not well written; Unknown column 'code_empleado' in 'field list'.
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May 26, 2011
I'm using visual basic to code a program to help with weights and center of balance on aircrafts, as I'm my unit's new air load planner. The math isn't hard to do, it's just that much of it is trial and error, and redoing all the arithmetic over and over again until the aircraft's C/B is in acceptable limits can eat some time up. So, since i'm trying to learn programming I thought this might be a good way to use it for a real-world scenario.
[Code]...
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Jun 7, 2011
I have a page which has a GridView on it, which is populated from a database. Some of the columns in the GridView have text boxes, as well as Checkboxes.When the user saves the page, the page may error if they have not entered their data correctly. At this point, I need to re-display what they have entered already so they can simply make the correction instead of having to change everything from scratch again.
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