i just started programming using DAO recordsets and almost everything works great, most of what I did is database stuff.including movefirst and other stuff like that. But when my boss came and deleted everything in the database and clicked on movefirst i got an error that says no current record. is there any way for me to trap that error
Dim AccessEngine As New DBEngine
Dim db As Database = AccessEngine.OpenDatabase(DatabasePath)
Dim dbs As Microsoft.Office.Interop.Access.Dao.Recordset = db.OpenRecordset("myTable",
I am using Windows Forms on VB 2008 Exp. combining with Access 2007 as backend.I have designed a form to use ADODB connection with recordsets to retrieve and display data on label controls on the form.On the Form I have buttons like (First, Previous, Next, Last).... I want to use these buttons to navigate the rows of the recordset.However, I have problem in the codes - when I click the PREVIOUS button, it will tell me that either EOF is true. But if I click the NEXT button, it moves to the next record once.... Clicking on NEXT again, does not move to the next record..
How can i refer to an access recordset in vb.net? when i just type the name of the dataset/recordset i am given an error that i need to declare it.Do these not work like forms or classes or modules?
I am trying to read an Excel workbook with VB 2008. I am fairly successful but I need to make the code more flexible. Currently I use.[code]There are a variable (unknown) number of sheets within a workbook, all with the same format, and their names are given in "SHEET NAMES". What I need to do is now loop through these remaining sheets and transfer the data. I can do this into individual "cells" arrays but I would like them in one 3-dimensional array, something like sheets(sheet-number,columns,rows)I am new to VB and I'm not too sure about variant type, but any suggestions would be most welcome.
I have just moved over from VB6 to VB2008 Express and I cannot get a simple recordset to work.All I want to do is create a very simple recordset form a single table in an access 2007 database file.In VB6 I just dropped a data object on a form, told it the database name and the table name and the job was done.I have been trying bits of code and the wizard for 10 hours I cannot get a simple recodset to work can some one give me some basic pointers please.If I try using the wizards I get some bizarre error message about ConectionString.[code]
I am trying to add a new record to a Visual FoxPro data table using an ADO dataset with no luck. The code runs fine with no exceptions but when I check the dbf after the fact there is no new record. The mDataPath variable shown in the code snippet is the path to the .dbc file for the entire database. A note about the For loop at the bottom; I am adding the body of incoming emails to this MEMO field so thought I needed to break the addition of this string into 256 character Chunks.
I have recordsets in my MySQL database like this (in german): Karrieren im Porträt: Interview mit Thorsten Franck - „Ich liebe Produkte" Now when I get the data with the MySQL connector reader and write it into an xml file I get just this: Karrieren im Porträt: Interview mit Thorsten Franck Ich liebe Produkte As you (hopefully) can see, the minus (it's one of those long ones) and the upper and lower quote signs are not shown. The table is defined as UTF-8, the output of the xml file also.
I have this piece of code which goal is to compare ALL records from recordset rs1 to ALL records of recordset rs2. Im doing something wrong because, when the code finishes I find that some records that fulfill the matching condition are not being considered as matched.
My experience with Stored Procedures is limited and I'm hoping this will solve my payroll problems. Further, for what I'm attempting to accomplish a Stored Procedure may not be the best answer.I'm attempting a Payroll function in which the goal of the Stored Procedure is to fetch the data for a given Payroll Period, do math on the first returned employee, output a calculated result, then move to the next. Let me explain a bit more...Based on a Pay Period ID which is given to the Stored Procedure, I would like it to do the following:Select the employee in that period, add a total of his hours worked, then add that employees total commissions, whichever amount is greater - return that value (along with the totals - such as the total hours and total commission) - then move to the next employee until completed.
I have a .net application that uses customerrors web.config module to display meaningful messages for errors. It works without any issues for 500 errors/exceptions caused by non-ajax and ajax components (updatepanel). However, in a scenario where updatepanel's asynchronous request times out, there is no error raised at all. I was able to see the timeout in firebug and come up with a solution that would at least display the error message as an alert and then redirect the user to the 500 error page using javascript but it's not quite doing what the rest of the application does in case of an unhandled errors like these. I basically just want everything to go through "LogEvent" mechanism so based on the severity of the error, it does the necessary work.This 500 error page doesn't have anything in the Server.GetLastError() for these timeout scenarios. Is this an expected behaviour? Can it be changed so I do have access to these timeouts in Server.GetLastError() OR maybe just run this error through "LogEvent" mechanism? Is there a better/more graceful way to handle this issue?
Below is my code to give you an idea, not exactly what I have in my application but pretty close.
I am trying to learn the new methods in .net, but, I cant see a way to step through the data like you can in an ado recordset. I want to pull data from a table once, then split the data with a filter, then step through the rows gathering the dtata till eof. Clear the filter and reset it for the next batch.
So when i build or click debug on my program. No errors come up and its smooth. So i decide to publish my programme. However. I come up with a bunch of errors during the publishing.
Here they are:Error 1 Cannot publish because a project failed to build. 1 1 Simple CALC
Error 2 Unable to copy file "binReleaseSimple CALC.exe.manifest" to "binReleaseapp.publishApplication FilesSimple CALC_1_0_0_0Simple CALC.exe.manifest". The specified path, file name, or both are too long. The fully qualified file name must be less than 260 characters, and the directory name must be less than 248 characters.
I am writing a app in VB and get errors with inserting or deleteing records. I can do a try catch in by app, but I would like to know how to make the cryptic error messages that I get back from my tableadapter queries into messages that make sense to the end user.
Ex. ERROR [23000] [Microsoft][ODBC SQL Server Driver][SQL Server]The DELETE statement conflicted with the REFERENCE constraint "FK_License_Vendor". The conflict occurred in database "AssetsSQL", table "dbo.License", column 'VendorID'. ERROR [01000] [Microsoft][ODBC
i get this big error whenever i run my program on another computer. Basicly it says im missing a dll. Is there a code that if there is a error i will just continue running insted of pulling up this window and saying .Net Framework Error.
I have the following asp:HyperLink which opens in ColorBox:[code]The above works fine if the Eval("album_name") is without space. The problem is when i have spaces the colorBox doesn't open. For example: delete_album_confirm.aspx?AlbumName=testing album cover& PhotoFilename=resized_ CIMG1426. jpg&AlbumID=41..Can anyone tell me how I can use spaces and still get this working?
I'm suppose to do an application as follows..I should dial a modem with Phone number using Gsm Modem. i Searched a lot in Google for some source/idea's in vb.net but i dint get .I have code in vb6.0 so I converted that in to vb.net. In that i'm getting errors correct my code.Here is my code.I'm fresher as well new to VB.net programming.Because of stress for urgent completion of work,not able to spend much time.
I am making a vb.net program that calls several other subprograms. None of them effect the other.If there is an error in 1 of them, how do you record the error but continue on to the next subprogram with out stopping everything ?
I'm new to visual basic 2008 and have worked on this question for quite a bit before deciding to come to this website and asking for someone to walk me through it."Write a program that requests an amount of money as input and displays the names of all liquids for which a gallon could be purchased with that amount of money. The information in the (table 6.2) should be read from a file. As an example if the user has $2.35, then the following should be displayed in the list box: "You can purchase one gallon of any of the following liquids:Bleach Milk".[code]
I have a program that runs fine untill i build the app. then try to run it i get an error when it would be calling the second form. im not sure how to find the error since vb thinks the code is fine
I'm having problems moving some VB scripts that create web pages from a Windows 2003 server with no service packs to a new Windows 2003 server with SP2.If I go to the web page that calls the scripts on localhost, every thing runs fine.IfI go to another computer an bring up the web page, I get this error:
Microsoft VBScript runtime error '800a0046' Permission denied
I am making a new application and now I want to make sure if I forgot to handle any errors that might occure I want to put in a handler to handle all the other unhandled error's.[code]...
How can I make it so that when my Webbrowser returns an error - such as 404 or 407, it shows a web page of my choice like a webpage designed by me instead of the IE version?
I am trying to deploy a ClickOnce app. It had worked previously when the server was just sitting with .Net 2.0 installed (no SP). Recently the server had 3.5SP1 installed on it and now ClickOnce is failing with the error:Value does not fall within the expected range inside System.Deployment.
Here is the information posted on the MSDN forums (answers there are generally hit or miss for me) with the call stack:It was in VS 2005 w/SP1 and I tried changing the path I publish to, changing the installation URL, changing the assembly name, manually controlling versions, running mage -cc, manually removing all application data in %userprofile%AppDataLocalApps and even changing deployment servers completely but still get the same error:
The whole code here has to be used as a search engine. I need to build strings and then, convert them into queries. I had already done everything with linq-to-sql. But it seems impossible to convert a string into a linq querry. However, I found on stackoverflow a kind of solution, but I've never been able to use it : String.ToLinqQuery(). It's just not known by visual studio, and I can't find any documentation about it.
