Navigating Through The Recordsets?
Aug 23, 2010
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..
See my code below:
Imports ADODB
Imports Microsoft.SqlServer.Server
Imports System.Data.Odbc.OdbcConnection
Imports System.Data.OleDb.OleDbConnection
[code].....
View 3 Replies
ADVERTISEMENT
Apr 3, 2012
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",
[code].....
View 13 Replies
Aug 6, 2009
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?
View 1 Replies
Jun 2, 2009
i suppose this is an IDE related question; (correct me to another forum if not)
View 1 Replies
Mar 5, 2009
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.
View 2 Replies
May 27, 2010
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]
View 4 Replies
Jun 16, 2010
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.
cnn1.Open("Driver={Microsoft Visual FoxPro Driver};" & _
"SourceType=DBC;" & _
"SourceDB=" & mDataPath & ";Exclusive=No")
[code].....
View 1 Replies
Nov 10, 2010
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.
View 1 Replies
Mar 16, 2012
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.
[code]...
View 7 Replies
Mar 23, 2011
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.
View 2 Replies
May 22, 2010
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.
View 1 Replies
Apr 18, 2011
Another area i am now stuggling with is navigating through records one at a time using a database. I am making a quiz and I want the form to populate one row at a time. When Next button is pressed/called, I want to the next row to populate the form, so on and so forth.Problem is I don't really know how to do that.
View 3 Replies
Nov 18, 2008
What is the best place (event/procedure) to use the newest record when navigating from record to record on a form.
For example, I want to do a calculation on 2 text boxes that are bound to a dataset. This calculation will be done each time a new record is navigated to.
View 1 Replies
Feb 15, 2010
I am using
VB
webbrowser.navigate(link)
in a timer and that sometime ended up with error and sometime the browser shows a blank screen and keep on refreshing and other times it shows an error and the application stop responding.
View 4 Replies
May 19, 2011
It has come to my attention even as a novice programmer, that there comes a time when you need to step it up a notch and take my programming to another level. For me I think that time has finally come in trying to learn how to use classes properly.
I suspect this is a common rookie fear and the leap to move out of the Form1 Class, or off Form1 is a daunting one. I learned how to add new forms many years ago and to get them to interact with one another in a crude manor, but never really mastered the whole concept of classes.
View 7 Replies
Apr 24, 2012
i am having trouble navigating between forms in VB 2010. the code is as follows -
[Code]....
View 4 Replies
May 11, 2009
currently i get data from 2 different tables.....and i need to navigating them into sum textboxes....which mean i need to 2 functions to do so rite?ok i categorized them into 2 parts.....i can get part 1 data correct into textboxes but then part 2 did not show any result and dun hav any error too. ....here is my code.
CustId = TextBox1.Text
For c1 = 0 To (MaxRows - 1)
If CStr(ds2.Tables("test1").Rows(c1)(2)) = CustId Then
[code].....
View 1 Replies
Feb 20, 2009
I am developing an intranet site using VB.net 2005. I have a list of reports and their URL's located in a table. The list is displayed to the user using a Gridview control with select turned on. when the user selects one , the selected index changed event triggers looking up the URL from the table and stores it in a session variable. the problem i have is that i now need to open a new web browser window and display the page.
I tried using the envDTE.ItemOperations.Navigate but all of the information provided for this process is written in VB6 and VB2003. In 2005 the DTE proces is not native and when you assigned the ENVDTE.Itemoperatiosn to a shared variable (or any type) and
then try to navigate you get the following error: Object reference not set to an instance of an object.
so i tried to create an instance but when i try:
ItemOp = DTE.ItemOperations or
ItemOp = EnvDTE.ItemOperations
it gives me an error indicating that this is not possible. My quesion is, does anyone have the correct syntax for using the envDTE.ItemOperations.Navigate instruction from Visual Basic.Net 2005? None of the microsoft pages or microsoft books provide correct syntax. Or does anyone have any substitute code that can navigate a user from a protected sub in one page to a new web page?
View 3 Replies
Jun 16, 2011
How will I navigate the buttons using the arrows keys? Example, from button Broccoli, I want to go to button Portobello Mushroom, i will just press arrow down. But it is not working. For me to reach button Portobello Mushroom, I have press the arrow right 6 times. How can I use the arrow down?
View 1 Replies
May 30, 2009
I have multiple forms and I want to be able to navigate through each of them using buttons. "Next" and "Back" buttons would be used to navigate through the forms.I know that NickThissen has made a Wizard Control to do this, but I want to learn how to do something like this, but a bit more basic.
View 6 Replies
Mar 25, 2010
How to block sites with my own webbrowser in vb2008
so when i navigate to a blocked site it wont be opened...
not things like : c:windowssystem32etchost
but when blocked site start navigating webbrowser1.allownavigation = false , or webbrowser1.documenttext = "<font size=7><font color=red>This site isn't allowed</font>
View 4 Replies
Feb 24, 2011
I'm trying to load a specific game (Kingdoms at war, www.kingdomsatwar.com) into a web browser on my visual basic 2010 project (i dont mind if its a webbrowser, AxWebbrowser or Axshockwaveflash, it just needs to be in my form).
To answer this question you may need to go the extra mile and join the game to try what im asking Ok so details:
I have a few issues when trying this, I create a form with a standard web browser and change the url to www.kingdomsatwar.com , when it runs it will go to the website however when clicking the login button it will go to a black screen with a bit of writing cut off in the top left corner (which i found out was "Page Loaded"), so thats the first issue.
However this can be temporarily fixed by right clicking and going to "forward" or "play". After this you will go to a login screen where you can enter your details, however after this it will load the game with a "cannot connect security" (which may be a game issue, however i need to know how to make the vbwebbrowser work like internet explorer, which will load it).
This game runs in flash, so i need to know if there is any special way to make the vbwebbrowser work properly like the internet explorer version works with the game.
I tried running the game's url itself (using mochigames), which is http:games.mochiad.../play.swf?q=243 , (i have tried this in the vbwebrowser, axwebbrowser and axshockaveflash) and they all won't load the game (they will load the game when not logged in but wont load an account)
I know this is a very specific question and can probably not be solved but if anyone has some spare time, could they create an account and give it a shot. All i need is a form which will load a www.kingdomsatwar.com account on it.
View 1 Replies
May 10, 2012
I'm automating a download,and I know the URL to the download page. Well, not exactly. This URL is indeed what I need to use, but the website redirects it to the REAL download page. Unfortunately the redirect only happens if I do an exit sub. That is to say, if I do a loop sleeping one second per iteration, the loop goes on forever waiting for the redirect. But if I branch out of the loop by inserting an Exit Sub in break mode, I can see the redirect occur onscreen. (I can watch the current page in the web browser transition to the desired download page). The trouble of course is that I don't WANT to do an Exit Sub at that point, so what's the solution? Do I need to call Browser.Navigate on a background thread?
View 4 Replies
Apr 10, 2010
On the main form of my application, I added a menu strip button to it to open another form rcgntn.vb in my application.[code]...
View 1 Replies
Dec 12, 2011
I am sure this is not a unique problem, but I am drawing a blank (Monday morning) on how to fix it.On my Nav menu, user opens a page with a DDL, selects a record from drop down which opens up a single line in a Gridview with a few fields displayed. User can click Edit and Update two fields or of course Cancel, or select another record from the drop down which displays the new record in the Gridview.All this works fine.Issue is when the user goes to Nav menu and goes to another page then comes back to the first page, the last record that was being viewed is still displayed in the Gridview instead of showing only the DDL and waiting for a selection. Its as if the Page Load event does not fire again (In fact it does not). I need it to fire as an initial load, in order for the 'If Not ISPostback Then' logic to properly fire.
View 1 Replies
Jun 9, 2011
Is it possible to navigate multiple tables at a time.... The two tables are joined with primary and foreign key relationship...
some site to which i can refer or some sample code for all first,next,previous,last
I can do it when its single table....
Private Sub btnFirst_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnFirst.Click
' con.Open()
[Code]......
View 4 Replies
Mar 22, 2011
I want to make my webbrowser navigate to the clicked toolstrip item's text. for example:
Private Sub HistoryToolStripMenuItem_DropDownItemClicked(ByVal sender As Object, ByVal e As System.Windows.Forms.ToolStripItemClickedEventArgs) Handles HistoryToolStripMenuItem.DropDownItemClicked
[Code]......
View 1 Replies
Sep 2, 2011
I am working with vb.net to making a form that prevents the web broswer on windows internet explorer from navigating to certian pages. The code can't just work on internet explorer because I could make a program with a web browser that navigates. It has to prevent the web browser itself from navigating.
View 7 Replies
Jul 29, 2011
I am currently building a webbrowser that only loads one page, but I don't want the user to be able to navigate away by clicking advertisement links, as I don't want them to be able to surf the net, clicking links could eventually lead them back to Google to search for what they like if they are clever enough!
View 2 Replies
Dec 26, 2009
how can i navigate the datatable with the help of a BindingSource?
here lies the
con = New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=db1.mdb")
con.Open()
cmd = New OleDbCommand("Select * from Table1", con)
[Code].....
View 26 Replies
