VS 2008 Reload DataSet From Access DB?
Jan 28, 2010
I have been allover the web and can't find a solution that works.I am creating a signout system using An access DB I call student info using their ID# using FillBy to fill a form I call Equipment Info using a Barcode # Using FillBy1 and fill the rest of the form I then use a OleDb.OleDbConnection To add a row to the DB this adds the row to My Access table and works fine.Now the problem when I go to sign the equipment back in the equipment can't be found ( I am loading the record using the barcode#and Fillby for that tableAdapter But if I stop debugging and start again I can find it.
So I am assuming that I am writing data directly to access but calling data from the dataset which I can only get to update when I restart the program.The question is how can I get the dataset and the database to both be updated with the same data at the same time without stopping and restarting my project?
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Apr 3, 2010
I am using Vb 2008 Express Edition. I have only 1 form with 10+ arrays. My app runs a few calculations and finally plots 2 graphs. The first time I run my program, everything works fine. But when I run my app with a new set of data it gives me the wrong results. Is there a way I can force my form to reload itself and act as if its running for the first time? I know I can do an Application.restart. But I don't want to restart my app every time.
Me.Refresh() doesn't work, as my form still seems to remember my old data set (array)
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Jun 1, 2012
I have a DataGridView control in my windows form application. What i want to do is this: I want to reload the view so that it shows the correct data when a change occur to the database table that it is bound. In other words, when i delete a record, using an sql query not the DataGridView1.Rows.Remove(DataGridView1.CurrentRow) property, i want the changes to occur to the datagridview also. For example: I have a customers table that is bound to the datagridview. When i delete a record, lets say the one with ID=5, i want the row to be removed from the gridview in run-time. Is this possible?
[Code]...
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Mar 29, 2009
I am trying to utilize the access database, but I'm getting an error message: Value cannot be null. Parameter name: dataSet
[Code]...
That's the code I'm using, why I'm getting this error?
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Feb 7, 2010
I am trying to call a SELECT query (with parameters) in Access from VB.Net 2008. I am able to call queries without parameters using the code below. The problems are (1) how to apply the parameters to procName and (2) how to get a dataset returned. I have looked around the net for hours and have found some examples. However, they are all for ms access action (update, delete, etc) queries using ExecuteNonQuery which does not return a dataset.
[Code]...
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Jun 26, 2009
how can i reload my form in vb9?
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Feb 24, 2012
Is it possible to reload a form of the running application from one computer when I executed a function from my other computer with the same application? co'z I want to see the changes of data on my datagrid view
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May 18, 2011
I have a form with a browser inside. When loading this form I set the browser.navigate to a url.Now to display this form I used the: form. ShowDialog()to have the form modal (which is what I want).But now when I close this form and reopen it, the browser doesn't refresh (the navigate doesn't start)this is beacuse closing a Showdialog() form doesn't unload it from the memory. To empty the memory I used the.[code]It closes and when reopened it reload the page, but it's not modal anymore and also closing the main form doesn't close this form.So what I would like is to have the form with the browser modal, but every time I load it, it should navigate to the url set.
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Aug 22, 2010
Only my local dataset updates when adding, deleting or editing records.The Source Database is supposed to update on issuing DataAdapter. Update(dataset )However, when I check my source database after running the operations it remains the same as the original.
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Jan 14, 2010
How can i actually reload a form without actually closing it and re-opening it?By using a button click?
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Jun 9, 2011
I have a form that has 1 text box and has 2 queries that locate the data. One is by customer ID and the other is by customer last name. They both work but when the code works and the user enters a customer ID and the query locates it then enters a customer last name it also locates it. If the user enters the same customer id again the query seems to fail. This is why I'm sure I need to add some kind of code to reset the Dataset.
Here's the code in the load sub procedure:
EditBoxSearch.Focus()
' Start out clean.
[code].....
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Feb 11, 2010
I'm looking for some code that will reload a form, so its like a Restart Level button which when clicked will reset the form to its original look.
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Feb 1, 2010
I have a dataset (WW1Dataset) with one data table(WW1).(database used in an access database) I'm trying to filter the dataset e.g a user wants to filter by a chosen surname (SurnameTextBox.text) so the datset is filtered to display only those records wherethe surname column in the dataset matches SurnameTextBox.text.
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Oct 9, 2009
does VBasic allow a MS Access Database DataSet create a Stored Procedure or will it only allow SQL Database DataSet create SP...
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Dec 3, 2011
I'm just starting to explore VB.NET datasets but I'm stuck on a (probably) trivial problem.I have declared a dataset (let's call it 'Fred') as public in a VARs module.In the main form in a sub routine called at the start of the project I connect to an Excel spreadsheet and read it into the 'Fred' dataset into one table (called 'Table')I then bind the dataset table to a datagridview and I can see the spreadsheet. Which is very nice :-)
Having loaded the dataset I want to be able to get some values so I created a button and used the following [code]....
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Jun 12, 2009
I am developing an app. with VB and i have stumbled across a verry eary problem. Until 2 weeks ago everything was working perfectly but now here what is my problem:
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Sep 11, 2009
I have written my main program which uses a datagridview however I seem to be struggling when trying to access the dataset items that have been deleted. Just before I commit the changes I want to record the user that deleted the items.
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Jun 3, 2011
I have access Query have more than one table. I want to insert into it. I cannot insert into it by CommandBuilder coz CommandBuilder for one table only so how can I do that using DataAdapter with dataset.
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Feb 17, 2012
So i have a DB with 3 tables. User Table with U_ID and U_Name, Class with C_ID, and C_Name and User_Class Table with U_ID and C_ID. Foreign keys are set.I want to display the classes associated with the selected user. The user is identified by their name. I know these are the two SQL statements I need to execute:SELECT U_ID FROM User WHERE U_Name = current_U_name
then
SELECT C_ID FROM User_Class WHERE U_ID = current_U_ID
then
[code].....
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Aug 26, 2011
The SQL string won't return data from Access. I've tested this exact SQL String in Access and it works fine.First of all, Am I getting a SQL query from Access in the proper manner?Second... should I be using a stored procedure for this? Or is making a query from tables like this a good practice? Third, if I'm doing it right, why won't Access query return and fill my dataset?These are the results I'm getting.
Connection State = 1
Tables in Dataset = 0
Where am I going wrong?
SQL:
SELECT PageSetupData.Size, PageSetupData.Category,
PrinterList.Location, PageSetupData.isPlotter, PrinterList.LocationSuffix,
PaperSizeData.PrinterName, PrinterList.HasAltPrinter, PageSetupData.SetupTitle,
[code]....
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Apr 16, 2010
I have a form in vb8 that is set up as follows:
I have a table in my Access database calledUsers that has a name and a password (encrypted).
Using the toolbar I created aBindingSource with a name of UsersBindingSource and a dataSource ofUsers
Using the toolbar I created aDataset called with a Name and a DatasetName called Users_Dataset
Using the toolbar I created atableAdapter called UsersTableAdapter
I added two textboxes on the form and changed theirDatabindings...Text property to the corresponding field in the Database.
How to now update the database when I click Update. What the program needs to do first is encrypt the Password before saving it. I wrote the code in the TextBox2.Lostfocus event to encrypt the data a place it back into the TestBox2 field. The only samples I find on the net refer to DataGridView controls (which work) but I don't want to use them. How can I get the database to accept these changes as well as changes to radio buttons or comboboxes?
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Dec 17, 2010
new to vs2010 express trying to accomplish a simple task read records from a sql server DB table and add them to a table (different format eventually) in an access DB Sample code below seems to work ok up to the point of the data actually showing up in the access table.
[code]...
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Feb 17, 2012
I'm confused about DataSources and DataSets.I created a DataSource (DataSet?) via the DataSource wizard called PPIDataSet. This has tables in it Customer, Vendor, Orders, etc.Now I want to access the data in these tables via code. So I'm expecting to be able to do PPIDataSet.Customer.AddRow or something like that. However, when I access the PPIDataSet object, in IntelliSense,I only get PPIDataSet.CustomerDataTable PPIDataSet.CustomerRow
How do I access the table data via the DataSet? Or do I have to access it some other way?
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Mar 11, 2010
I am having a problem updating an access database with new information from an updated dataset. the database consists of 4 columns: User_ID, Login_Name, Password, Access. The following code makes a connection to the database, fills a dataset with the data from the database, reads a txt file with user name and passwords, and should update the dataset and then the database. However, I keep getting an Syntax error on the INSERT INTO statement on the datest.Update(dsUser,"User") line. I have found multiple posts on here showing the correct syntax of how to update a database, but I can't seem to get it to work.
[Code]...
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Oct 25, 2011
In my VB.Net desktop application, I have several places where I am accessing a table, both for reading and for updating. For example:
Dim tempCount As Integer = Glbl.GlobalDataSet.Tables("Profiles").Rows.Count
The above does not work. However, the following does:
Dim tempCount As Integer = Glbl.GlobalDataSet.Tables(4).Rows.Count
I am pretty sure it was working in th past (I have recently switched to VS 2010 - could this have anything to do with it?) but it is not working now.
How can I make the first statement work, so can access tables by table name instead of by index?
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Jun 30, 2009
Automatic update Dataset after change in Access
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Sep 28, 2010
I used this code to assign the primarykey from my MS Access database to my DataSet in my project:
Dim col(1) As DataColumn
col(0) = ds.Tables("Filmer").Columns(0)
ds.Tables("Filmer").PrimaryKey = col
[code].....
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Jun 3, 2011
I think this may be a usual issue but I am not able to find much info. There is a master customer database and a call log database at work. The call log database has two tables that are updated from the master database monthly. Now I am writing this vb frontend for the call log database and cannot figure out the update portion
For p = 0 To maxrowsC (currently around 1000 rows)
With myCommand.Parameters
.AddWithValue("@HEATSeq", dsCallLog.Tables("ConfigDS").Rows(p).Item(0))
[code].....
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Oct 27, 2011
Using VB2010, I am trying to insert a row into an Access 2010 database. The database has several tables, but right now, I'm just trying to insert a row into a standalone table in the database.
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May 7, 2010
I have a database that has tables in it. Tables can be added to this databse programatically as well as the data that needs to be in those tables.I need to be able to query that database to get what tables are in it, place the names of those tables into a listbox so that when a user clicks on the name of the table, It will update a DataGridview with the data that is in that table in the database.I assume that you would need to build a dataset at runtime based off of what tables are in the DB, but i have no idea how to do this.
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