Creating DB With ADOX?
Jul 25, 2009
I'm trying to create a DB using ADOX and it works just fine, problem is ADOX.Catalog.Append(Table), throws an exception: "Parameter is incorrect" I'm using Visual Studio 2008 Express edition here is my code,this is where I set the fields I want to be added, the DatabaseField type is a structure I've created to make it easier for me to add fields to the DB
1
' Define the field list
Dim Fields As New List(Of DatabaseField)
Dim Field As DatabaseField
[code]....
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Jan 15, 2009
I am trying to append a table to database using ADOX in .NET (as you probably surmised from the topic title) I get the following error:
Create Database Failure: System.Runtime.InteropServices.COMException (0x80040E3D): Type is invalid.
It says the Type is Invalid on the line where I try to append the objTable to the Catalog
And here is the code I am using:
CODE:
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Sep 14, 2009
I am very new to VB.net express and I am getting confused as to what does what. I have to work with DBF files (clipper/ Dbase iii or iv) I have code to create a new DBF file with a reference to ADOX. The code example seems to work. I can open and display a dbf file (from a clipper application) using an oledb.connection This allows me to fill a dataset and bind to and display a grid view. I have yet to succeed in updating the source dbf file.
Does ADOX do anything for me beyond creating a new DBF file?The DBF file is unsorted and not otherwise indexed. For the data massaging and manipulation I may use a temporary sort but the data relations do not need that and the tables are not related.That being said, it appears that the data wizards or command builder will be of little use.
[Code]...
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Sep 4, 2009
How do i use ADOX w/ MS Access database? for connecting to Access , querying the database, adding,deleting,updating,etc.. are there any sample code for all these?
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Nov 28, 2011
I have an Access 2007 database with a column defined as AutoIncrement. I need to remove the definition while I programitically load data into the database and then re-add it when I'm done. I've unsuccessfully tried the following code, but get an error: "Exception from HRESULT: 0x800A0CC1" I'm using the following code to try to remove the attribute:
Dim cn As New ADODB.Connection
Dim cat As New ADOX.Catalog
Dim objTable As New ADOX.Table()
Dim objField As New ADOX.Column
[code]....
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Apr 27, 2011
I am experiencing a strange issue with a VB6 -> VB.Net conversion. There is a function that uses ADOX to look through the tables in a given database, and reset the seed values of any columns in said tables with the auto increment property set to true.I tracked the issue down to a call of "col.Properties("Autoincrement").Value". If this line of code is commented out, then the file handle properly terminates when I close both the ADO and the ADOX connections at the end of the function. If I leave that line in, the handle stays open despite the closing calls and forcing garbage collection.Here's how I am closing the objects:
System.Runtime.InteropServices.Marshal.ReleaseComObject(adoConn)
Dim connection As ADODB.Connection = cat.ActiveConnection
If Not connection Is Nothing Then
[code]....
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Oct 22, 2009
I want to create a new MS Access database table using ADOX. On this page, is code in VB.NET, but obviously it's not working in C# (when I want to "convert" the code). I'll be grateful if someone converts it correctly.
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Dec 18, 2009
I have a line of code that is producing the error: Retrieving the com class factory for component with clsid failed error: 80040154 ADOX The line of code is:
Dim
ADOXTable As New ADOX.Table
This error only occurs on one computer.
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Dec 30, 2009
please tell me what is below code doing? is it creating array with two values or its creating to string index which will take value later? [code]
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Oct 24, 2011
This is my first time so please be gentle. I hope this is in the correct place.Basically I want create a reg key that will effectively add a site to the trusted zone of IE.I have got so far and can create the key but I want it to create a REG_DWORD and not a REG_SZ. My code is:
[Code]...
I only have a very basic knowledge of VB but am trying. Basically I want to run a script that will add this website to the trusted site of users. We will have hundreds who need this and want to create a script to speed it along. I will be adding other things to the script as time goes on but this is the first step.
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Jul 7, 2009
I'm looking to create an API for a website I have built. The API will be built in ASP.Net - probably using VB and will need to be consumed by multiple platforms including PHP. I've read a bit about REST vs. SOAP APIs and am confused about which route I should go. I also need some examples and frameworks I can use to get started.
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Jun 3, 2011
I am trying to learn how to create a DLL in C (using Visual C++ 2010) for use in Visual Basic (2008 Express). I am a novice programmer, so please bear with me. My objective is to learn how to do starting with a very simple function, and I foundC++.html This examples presented in that tutorial are for Visual C++ 6 and VB6. I know there are differences between VB6 and VB2008, so maybe this is why I am running into problems following this example. In Visual C++, I created the DLL as a Win32 project. The function is simply summing two integers. I put the function "sum" in the source file "dllmain.cpp."
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Jan 8, 2010
Is there any C# .NET ORM that can create databases? It should be capable of creating MS + MySQL + PostGre + Oracle databases at least.And I don't mean tables or schemas, I mean the database only.I use nHibernate, but it can only create tables and schemas, and query/insert but not creating the database itself.
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Aug 1, 2011
I am wanting to build my own version of MSN complete with server etc, I was wondering if anyone had any basic tutorials etc? I dont plan on making it open to the public and it will be purely for learning, just looking for something to do now that I have made my own version of paint, advanced web browser, media players etc... just looking for my next learning curve.
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Mar 10, 2009
I'm building a simple udp lan chat application in vb.net and I'm wondering how I should split my packets. Each sent packet should have like an id, a username and ip address from where it's coming and maybe also a command part for like join or leave to update my userlist and a text message. I'd like to know what is the easiest way to put all this in a simple packet then easily split and access different parts from it when it's received. thanks.I'm using UDP since this is only in lan so i'm broadcasting to *.*.*.255
What I want to know is what would be the most easy and powerful way to format my packets so they include a username , an id, a command and a text message, then the user receiving it decrypt it to show only the message written by which user or if it's a command like join or leave to show the appropriate message of joining and add the user to the list for exemple.
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Jun 3, 2011
I have a vb.net web app, and I need to give my users the facility to download a ms-word .doc file. This file needs to be created dynamically, and should contain some bold text and a table.
I've come across this code, which builds a .doc file, and lets you download it:
Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim strFileName As String = "GenerateDocument" + ".doc"
[Code]....
...but I don't know how to make the text bold, or create a table. I'm sure there's a better way.
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May 31, 2012
What im looking to to is in my web application build a progress bar similar to that in the window.form controls.
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Jun 21, 2010
I would like to create a quiz and wonder what is the best way.
1. Using a textfile to read in the questions/answer
2. Using radio buttons
3. Or something else you suggest?
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Oct 24, 2010
I'd like some advice on building in known errors. Let's say I have a Windows form that needs to set the source path of an image in an object. It must be:
A valid path
An image
A PNG
[code].....
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Mar 31, 2010
i am trying to run the following code :
Excel.Application xlApp;
Excel.Workbook xlWorkBook;
Excel.Worksheet xlWorkSheet;
[code].....
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Jan 6, 2011
notepad file means that is used for .java file and .txt files.so this files should be converted into .exe file using the vb.net environment.so, if its required software is not installed in any pc, that file will be opened without its installation s/w....I know this is used without the code.. creating a .exe file i hav to write a code..
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Jul 20, 2011
I want to create a big list box that has lots of default values in many lines so they can then be edited later.Right now I have in my initializer:
Dim counter As Integer = 0
For counter = 0 To counter = totalNumber
listBoxThingy.Items(counter) = ("DEFAULT DETAILS TO BE COMPLETED")
Next
with my list box called listBoxThingy and totalNumber a previously defined constant of how many items I want in my list box.yet when I try to run the code I always just end up with the first list value containing the text.Even if I put a counter=counter+1 it still only gives me the one completed value of my list box?
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May 19, 2010
I am having difficulty trying to come up with the code logic for having program calculate three different runners scores and placing them as First, second or third place standings, dependent on their times (seconds).
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May 17, 2011
How can I create a confirmation popup box into my Windows Form project? I use SQL Server Compact and Visual Studio 2008 Pro.At the moment I have some buttons and operations that delete selected rows straight from my database.
What I want to do, is have those buttons continue with the coded operation if the user clicks "OK" on the confirmation box.The box should be like the MsgBox, but with two selections: "OK" and "CANCEL".
P.S. I have several places to include that confirmation operation.
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Jul 29, 2009
is there any way to create a cookie using vb.net?
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Jan 18, 2010
Creating a CSV reader?
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Apr 25, 2011
I'm trying to develop 2 companion applications. One application will be a FileSystemWatcher service application that will create/maintain a database containing file metadata (file properties) from a specific folder structure on the user's C drive. The other application is executed by the user which contains edit boxes pertaining to the metadata. As the user enters data in the edit boxes, the code will execute an SQL statement which in turn will display a list of file matching the entered criteria.
I'm thinking about using Microsoft Access as the database since all users have it but I'm willing to use another database format as long as it something intrinsic to the Windows XP 64 bit system (i.e. I don't want to install another database application in order to utilize its database format). So, do you have a suggestion on a database format? Do you have some pointers or links, on how to create database file and tables on the fly? Should I use DAO or ADO or something else? I'd prefer to work in VB.NET.
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Jun 21, 2010
I created a new class project. I added a new COM object.The .ddl contains a single Public Function and one Public method. The method contains one line of code, a msgbox.I have "Register for COM interop" checked in the Project>Configuration>Compile page.I have ComVisible(true) in the AsseblyInfo.vb file.I use RegAsm to register the .dll and the .tlbI have used RegAsm to create a .reg file and then imorted successfully into the registry. If I open Excel, and go to Macro I cannot add the .dll as a refernce. The exact message I get is "Can't add a refernce to a specified file".I can reference the .tlb file and the Intelisense works. However, when the Excel Macro code runs I get the error, "Can't find file".I don't really expect anyone to download it to solve my problem. But if you become as frustrated as I am, I thought it might help to see the actual files. Be aware that I enclosed the .reg file from the RegAsm process. You can view it by opening notepad first and browsing for it. Do not click on the .reg file as I think that might modify your registry.
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Mar 20, 2009
im trying to create a .dll called PDTKey.dll (for example) that will hold all of my applications Product Keys..and when the user inserts a Product key into the main application..it searchs in PDTKey.dll to see if the Poduct key specified is there..
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May 7, 2009
Assuming i had written a program in vb 2005 than i wan to let other ppl on other computer use but they dont have vb 2005 installed .Therefore i would like to be advise on how to create a setup or exe file so the user on other computer can just double click the exe and install and start using the program i create in vb 2005 without installing vb 2005
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