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:
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.
View 2 RepliesI am trying to append multiple rows in a SQL Server.I have connected to the MS SQL Server and with a DataAdapter, I have downloaded the Table into a DataTable and displayed it in DataGridView.I now want to programatically enter multiple rows into the DataTable and later to update the SQL Table.
I am trying to build an application to do this generically.The problem I have is that the Table and DataTable has an 'ID' Field. In the SQL DB, i is an Auto-incrementing field.When the code loops through creating new rows and entering field values, how do I handle the ID Field that is the Primary Key?
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]....
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]...
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?
View 2 RepliesI 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]....
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]....
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.
I have this code that writes text on an existing text file[code]...
I know it appends at the end of the file but how will you append at the beginning of the file? Is it possible?
This code changes text to Arial or Times New Roman
Private Sub Button3_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
[code]....
Is it possible to append to a vb.net statement? Reason is I need to read data from a table in database A and update it to the same table in Database B. I have to do this multiple times and each time the database's might have a different amount of columns.
So far I have Read from Database A
strSQL = "select * from Users"
Database1da = New OleDb.OleDbDataAdapter(strSQL, Database1con)
Database1.Fill(Database1ds, "users")
[Code]...
When started my app connects to Access 07 DB and checks if Table has more than 1000 records.If so,it exports them to a CSV file and deletes them from the table.After some time,Table will again reach 1000+ record,and I will again need to export them.But,I do not want to create a new CSV file,but rather append to existing one.
View 2 Repliesi am using the below code to append to a xml file, it appends fine but i cannot work out how to wrap it in these elements <Contacts></Contacts> like this:
Quote:
<Contacts>
<Company>comapny</Company>[code].....
I need to append two pdf files. I have found a number of api's that do the trick nicely, but they are expensive. Does anyone have any suggestions for me? Free would be nice.I would like it to be an api, where I can program it into my vb.net program.
View 4 RepliesAs far as I can tell, if i want to append data to a RTF from a RTB, the only way is to load the RTF into a RTB, add the next text to the RTB, and then SaveFile the RTB which overwrites the original RTF.
View 7 RepliesWhat does Append mean? in this My.Computer.FileSystem.WriteAllText(Desktop, TextBox1.Text, False) I have it set to false at the moment but what does it mean?
View 2 RepliesI'm a newbie writing my first app. I need help with the following: I need to retrieve the logged in user which = GID, I then need to append it to a URL which will start our Help Desk chat client. I can retrieve the GID easy enough but can't figure out how to append it and pass it with the URL. I found a post which instructed to declare the url as a string also and concatenate it. The UserName would follow the ":" at the end of the Url.
[Code]...
We use javascript to do this from the HelpDesk site, but I need to adapt it to work from my app.
Pretty new to VB.Net. Having a bit of trouble here with something I though should be simple.Keeping it simple. Let's say i have a Document table with "Name" that I want to search on (in reality there are several other tables, joins, etc ..). I need to be able to build the query where clause based on string values passed in.
Example - user may pass in "ABC" or "ABC DEF" or "ABC DEF GHI".The final query would be (syntax not correct i know)Select * from Documents Where Name Like %ABC% AND Name Like %DEF% AND Name like %GHI%
So, I though I could do something like this.
Dim query = From document In _context.Documents
<< loop based on number of strings passed in >>
query = query.Where( ... what goes here?? )
For some reason, being brain dead or something, I can't figure out how to make this work in VB.Net, or if I'm doing it correctly.
I am new to Vb.net so I will need some handholding. I have been searching everywhere but can't find what I need.I'm creating an app that has two forms.Each form has two comboboxes.The comboboxes are populated via a list and the list is populated by reading a text file for each combobox.The second form is called from the main form to modify the entries in the comboboxes. When I select the displaymember in the combobox a value corresponding to that entry is displayed in the text box.Now here is what I need.
I need to be able to append new values to the list so when focus is returned to the main form the new value is present. I'm using a combobox and a textbox on the second form as the import.The combobox is used to either select a present value to be able to modify the value in the textbox, or is used to add a new list element.
[Code]...
I am attempting to append information to a textbox in VB. My app allows the user to choose a variety of options and displays all the information in a single, read-only text box.
I would like to set it up so every time an event triggers something to be written in the text box, it gets appended instead of overwriting the text currently in the box.
The only constraint is that text should be appended as a new line, not directly after the last sentence.
I have text file to read. If i find a line "T001" then i must add specific text beside that line. With my code now it write the specific text at the end of the file not beside the line "T001" This is my code so far
Dim filename As String = strFileName
Dim tfLines() As String = System.IO.File.ReadAllLines(filename)
Dim objwriter As StreamWriter
objwriter = File.AppendText(filename)
[code]....
I want to write out to an xml document from a database which I can do but how do I append to it if it already exists?[code]
View 6 RepliesWith the MVC3 Razor synax, one may render a string like so
@ViewData("photo")
My problem is: How can I append a dot to the above code.The following will result in a "Public member 'jpg' on type 'String' not found.
@ViewData("photo").jpg
I've tried the following code but does not produce my intended result:
@ViewData("photo") .jpg
@ViewData("photo"):.jpg
@ViewData("photo") & ".jpg"
I'm making a simple utility for browsing an intra-net site using VB.net webbrowser and for reasons outside my control, everything requires a passcode to be accessed. So, for example,
Index.html
is blocked by the company server but
Index.html?pass=123456
[code]....
I have a Gridview that I want to filter. My gridview is in an update panel and my filter button is not. On button click i have the following
protected void bttnfilter_Click(object sender, ImageClickEventArgs e)
{
if (TextBox1.Text != "")
{
[Code].....
So i add to the select command but I'm getting an error. How should I go about this? I don't want to use dynamic sql.
Private Sub btnOk_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOk.Click
Me.SaveData("testing")
[Code]....
when the file is not exists it will create than append a text to it -> then it always error( The process cannot access the file 'C:UsersAdministratorDesktopW-LTSinDebugStudent.txt' because it is being used by another process.) so how can i do?
but if the exists i can append text, it works properly.
I have two rows as shown below
regn_no date name Adress
5001 15 may 2010 A xyz
5001 13 jan 2011 B ABC
[code].....
i am using this code for updating autocompletestringcolllection in vb while run time
[code]...
I have written a program that is 99% complete now, but it is one thing left.I need the program to append My.Settings.MyString to a txt file.I have tested with this y.Computer.FileSystem.WriteAllText("C:mytxt", my.settings.mystring,ue)But when it writes the string to the txt it writes it wrong!If i check whats in mystring by typing MsgBox(My.Settings.MyString) it shows the string perfectly in order (it's a multirow string), example:
View 4 Replies