2010 Express Selecting Random Fields From Access 2003?
Dec 12, 2010
I'm am trying to determine the total number of fields under a particular heading given that the other Heading's total number of fields are > or < than the heading in question. The query, shown first in the attached code, works well if there is one column in one database table, however it does not work well when there are a number of columns with a different number of fields respectively. The CategoriesID encompasses the entire tables contents.I devised a function to determine the total number of fields within a particular column and then attempted to incorporate this, without success, into the second query, shown in the code.
Private Sub GetRandomHeadingFields()
Dim varNumberHigh As Integer
varNumberHigh = TotalNumberofHeadingFields()
I have recently decided to give .net another chance, but i have a few questions about it before i get really into it. RE: Files, I use random access files to store data as opposed to databases (namely i don't see the need for a database for storing so little information(records <200 max) knowing that it is an older system and less "cool" i don't care...) Will vs2010 express read, write to random access files? Would it be done kind of like vb6 (which is my current vb version)? I will be needing to print the text of rich text boxes, is vs2010 express capable of doing this?
I have a combo box and a subform that uses continuous forms format. When Combo box changes, the subform POINTER points to the correct record. How could I at the same time highlight (change color) of all the fields in the selected record?
I have an access 2003 database. I have VS2008 installed. I had SQL 2008 installed and with the problems upsizing I dumped SQL2008 and installed SQL2005. I would like to upsize the Access database to an SQL Express database. When I open Access 2007 and open database tool to do an upsize, I get ODBC-Failed.
My intention is to load my data from access database through datagridview but it keeps telling me the same error. This is the exact error message I've gotten.. it threw an oledb Exception stating: Could not open table 'MSysAccounts' in the workgroup information file. I've been browsing and viewing different resources but I still do not find a solution to view my data in datagridview. Few things I've tried:
1. I originally uses Ms Access 2007 to load, but it does not seem to work well, hence i converted it into Ms Access 2003 format. Same error displayed.
2. Working around with the workgroup in Access 2003, creating new workgroup which creates System.mdw file and I replaced it in:
I have created an excel 2003 file using visual basic 2010 express edition with access as backend. The excel is created using a select into query. I would need help to protect this excel file once it generated using visual basic 2010 so that the users cannot edit the same.
I need to have two pieces of software, made in vb where one encrypts the contents of a .txt file, and the other decrypts it, and then picks one word at random and displays it each time a button is pressed, but never displays the same word. Or, if there was a way to hard code it into the program as there is only 5 words that would be better.
Is it possible to import a query from Access 2003 into Visual studio 2010 (language used vb.net).
I created the queries originally for a project, then when I imported the database to visual studio I can only use the tables that i created. I have started looking at the coding to re-do these, but if I can import them would it be quicker?
Why is it that when I'm trying to run my program i always see this error>>>> syntax error in insert into statement.....i declared everythingin this function has an error:
if inc <>-1 then dim cb as new oledb.oledbcommandbuilder(da) dim dsnewrow as datarow dsnewrow=ds.tables("ryan").newrow() dsnewrow.item("ID")=textbox1.text dsnewrow.item("Password")=textbox2.text ds.tables("ryan").rows.add(dsnewrow) msgbox("data added!")
I have some code that retrieves some data from multiple tables.This works fine.Now I want the data I retrieved to ADD to an excisting table in an Access 2003 DB.
How can I achieve this.I searched this forum and google...without succes :-(
The code I use to retrieve the data from sql server 2005: Dim connection As New SqlConnection(strConnectionStringSQL)
I'm running into a bit of a roadblock here. I have tried to search the web/forums for answer for last several hours to no avail and I'm not the expert VB Programmer.However, I was able to write an app to do the following:
1) read Outlook emails for particular emails containing xml link in which I was able to download the file and save to my hard drive.
2) opened the Excel spreadsheet to run the macro which import those XMLs into existing XLS spreadsheets to refresh the data.
3) Those XLS spreadsheets are linked in my MS Access in which I join all four XLS sheets to create one report via Query which I have created in the past prior to this app development.
I have manually done a File Export of this query via ALT+F then E and what I'd like to do is to either take control of menu commands OR alternate method of performing a File Export to a new Excel spreadsheet (version 2003).I've seen two different methods, one via DoCmd OutputtoFile and another is TransferSpreadsheet.Here's my Access coding I have in my VB 2010:
Imports Microsoft.Office.Interop Public Class OutlookOfflineEmailExtractor Dim wsAccessApp As Access.Application
If I create a windows app which I link to an MS Access databse file that already exists..will I need to have MS Office installed on every computer at which I want to use the app? If not then how do I go about making a standalone windows app that will store information in a database of some form or another ?
I'm trying to create a table in Word using data from a table in Access. There are four fields in the access table that I need. 3 fields are text which I can populate the Word without any issues. However the fourth field is a memo with >255 characters.I'm struggling to come up with the proper code to allow me to populate the Word field with the memo data that has more than 255 characters. The code I have so far is listed below. But when it hits the memo field, it crashes on the line I marked with **. I know it's not text, but I've tried many different field types, but nothing has worked so far.[code]...
I need to select all records from Table2 where there are NO records in Table1 having matches of both Col2 & Col3. For instance, Table 2 records where Table1.Col2 <> Table2.Col2 AND Table1.Col3 <> Table2.Col3.
I started a forms solution in VB 2008, created a datasource to an access database (2010) and used the datagrid view to display the data. 3 fields in the access database are lookup fields with 2-8 values each, typed in by me, since the linking to other fields did not work. This is not working either. When I change the column to combo-box or not, those values, typed into access, are NOT showing up in the datagrid. the combo box has its drop down arrow but the value fields are empty.
The application reads information similar to a DXF file. For purposes of discussion, the data consists of lines, those lines have endpoints, x1,y1,x2,y2. Within the file those lines create "paths", in other words, they are connected. There can be many separate paths within a single file. However in the original file, the geometry is not in any particular order, the paths are not indicated.
The problem I have is I have made a program which you select a value from a combobox and it changes the value of a url for a picturebox and thus changes the picture, I also have a button which randomizes all of the comboboxes so I will get something unique, but every time the program loads, and I hit random, it chooses the same numbers in order. If you need an example, when I press random the first time I get the number 7 for my first combobox, so the selected index=7, every time I load the program and press random it picks 7 for that combobox.
How would you select a random word from an array list. Here is my coding:
'Create a sub which reads the words from the file and selects a random word. Sub ReadWordsFromFile(ByVal fileName As String, ByRef RandomWord As String) 'Create a random number generator. Dim RandomNumber As New Random Dim words As New ArrayList
I am making a game of tic tac toe, and I have 9 buttons lined up in a grid pattern. I want to select a random button for the computer to start the game from.
I have an array set up with all the names of my buttons, and I was thinking of picking a random entry from that array to start working from. This I have done fine, but I cannot change the text of a button. My code:
Basically what I'm trying to do is to get the program to select a text string that has 2 random numbers in it from a RichTextBox. The string it would find would be similar to this:"items_win.php?item_id=24&item_number=590576"But the bolded section changes every time the page is refreshed, so how can i find the string with the numbers every time no matter what they are?
Heres the code im using to select images from a directory , i also have a timer delay between each image , but my problem is when i start my app , it start by selectind image 1 (Images are numbered 1-15) but i want to select the images randomly ?
Private Declare Auto Function SystemParametersInfo Lib "user32.dll" (ByVal uAction As Integer, ByVal uParam As Integer, ByVal lpvParam As String, ByVal fuWinIni As Integer) As Integer
the problem is my sql statement returns no data even tho the record IS IN the access database. Below is my
If RB1.Checked = True Then comm = New OleDbCommand("SELECT * FROM Recipes WHERE (RecipeNo = '" & TB1.Text & "')", con) End If If RB2.Checked = True Then
I posted this as a bug on MS Connect and am wondering if anybody else can verify the problem: I been beating my head against the wall for about 3 days and I don't think it is my problem.
Desktop computer - Vista 64 bit Portable Computer - Vista 32 bit vb.net 2010 express on both of them
I can not establish a connection to an Access db (either .mdb OR .accdb) on the 64 bit computer. When I try I keep getting a message that says "Format at the initialization string does not conform to specification starting at index 0." (this was typed not copied). (There are screen shots over on Connect).
I can establish a connection to a "Microsoft SQL Server Compact Edition" (.sdf) database on the 64 bit computer.I can estabish a connection to all 3 types on the 32 bit computer (.sdf, .mdb, .accdb).The 'funny' thing is that if I establish the connection on the 32 bit and copy the program directory over to the 64 bit, the prorgam loads and seems to run fine. But the %$# _(%* Wizard will not run on the 64 bit machine. Runs fine on the 32 bit but not on the 64 bit. Of course I make sure that the db's are in the location where the program expects them to be when I run the program on the 64 bit machine.
One final thing, when I am in the progam created on the 32 bit and running on the 64 bit and I try Data->Add New Data Source->Database->Dataset only two of the three connections show up while all 3 show up on the 32 bit machine. Also the connection string is incorrect for the non-sdf connection. It should include
I grabbed some sample code to generate 100 comboboxes at runtime. The short version of the code is shown below, I left out all the combo box fortmatting and placement details...
Dim TB1 As New ComboBox() for loop TB1 = New ComboBox() Me.Controls.Add(TB1) end loop
it produces all the comboboxes and looks fine, but i cannot figure out how to reference an individual combobox. Are they in an array? How do you single out a single combo box, for example, how would I check the value of the 33rd combo box?
I have written lots of code with the ADO Library in VB Excel and previous versions of Visual Basic. With the dissappearance of the recordset object, how do we perform data manipulation with an attached Access Database? It seems things could be a lot easier, and less complicated by now, however, the best methods appear to currently remain ellusive.
I am working in Windows 7 Home Premium using MS-Visual Basic 2010 Express. I am having difficulty connecting to an Access 2007 database using ADO. When I try to connect to the database I get the following error:
Error Code: -2147467259
Exception: [Microsoft][ODBC Driver Manager] The specified DSN contains an architecture mismatch between the Driver and Application
Source: Microsoft OLE DB Provider for ODBC Drivers
I looked at...
[URL]
There were several reference to compiling the program using x86.
Go to Project menu -> Properties -> Compile tab -> Select "Advanced Compile Options" -> Select "x86" instead of "AnyCPU"
I followed the path and there was not any option to select x86 in VB 2010 Express.
How do I implement the ExecuteScalar method to return the first element in a sorted dataset?
Here is my code:Imports System.Data.OleDb Sub Dim oCmd As OleDbCommand Dim strConn As String Dim strQuery As String strConn &= "Provider=Microsoft.Jet.OleDb.4.0;"
