VS 2010 - Enable To Update And Delete To Access Database
Oct 26, 2011
I am trying to create Web Application using ASP.Net via Visual Studio 2010. The Database that I use is Access, with connection Method OleDb
When using the query "Update" or "Delete", the programs shows no errors, but the data in Access does not change.
While for query "Select" and "Insert", the data is displayed and inserted successfully.
The Following code is the sample query "Delete" that I used..
Code:
Imports System.Data.OleDb
Partial Class frmTEst
Inherits System.Web.UI.Page
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code] ....
Previously I tried a direct query using AccessDataSource, but the result just the same, Update and Delete can't be done. But the Select and Insert can be executed successfully.
Is there any problem with my Access configuration or whether the problem is in the coding itself..?
I am using a LinqDataSource fed by a stored procedure in my data context for the data source of my grid view in an update panel. The issue I have is that after I get the grid row into edit mode, I can't get it to commit an update. I figure my issue here stems from TableName and EntityTypeName, but am unsure what to do with them. This MSDN page has the following line in the 'Working with Stored Procedures' section: 'If you want to enable automatic update, insert, and delete operations for the data, the type that is returned from the method must match the type that is specified in the TableName property.'
The return type of my stored procedure is 'loadHaveToOfferByUserIDResult' but when I use that for the TableName, I get the following error: Could not find a property or field called 'loadHaveToOfferByUserIDResult' on the data context type 'LINQClassDataContext' of LinqDataSource 'haveToOfferLinqDataSource'.
I am select one mdb database from open dialog box.All records in the database (all table data value)will automatically delete. How to implement this concept.
I have an asp.net application that was working fine on my old dev machine that run XP pro and Access 2007. Although I did have problems getting the ACE OLEDB provider to work and so stuck with the old Jet provider.
I was given a new Windows 7 pro computer that also has Access 2007, I had no problems moving my app to the new dev machine. No problems that is until I had to add a new column to one of my database tables since then my app has been very weird when deleting rows (I am using the OleDbDataAdapter to access the database).
Existing data within the database deletes just fine, however if I add new data and then immediately try to delete it nothing happens, no error, no delete, nothing. This is the weird part; if I navigate away from the page I use to maintain the database (i.e. click my link back to the home page) and then revisit the database maintenance page the new data can be deleted just like old data. I add Response.Redirect() into my code to see if that would work but no, only navigating away from the page and then returning allows me to delete the data I had just added.
This problem did not occur until i added the new column to the database table. There is no problem with my code, the same code worked fine on the old machine and on the new machine right up until i added the new column to the database table. My thoughts are that it must be some combination of using Jet and IIS7. Oh and both the app and the database are on the same machine.
I want to delete file available on server and same time I want to update the filename column in my database.If I delete file first and then update database and an error come in updating database my file is already gone.If I update database first and then delete file from from disk and an error occur my file information in database is already gone Can any one tell me how I can do it both successfully. I means either both operations should succeed or I should not lose my physical file or its information in database.
Here's something I've been stuck on for some time. I used code from the ADO.NET Tutorial and tried to translate it so it applies to SQL and the database on my website. I set the Configuration Manager for Debug and so I can see a detailed error message.
I have most of the lines in the DoStuff Sub commented out right now but I get the same error message either way so it's responding to the first line below Try.
Here's the error message I see. Line 52 is : da.Fill(ds)
The table in Database1 that I'm trying to access is called Ray Rover Activation.
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how to create insert , update , delete . in detailsview without saving in database  ..
private void Bindemptydt() { //Declare a datatable for the gridview DataTable dt = new DataTable(); //Add Columns to the datatable dt.Columns.Add("report_id"); dt.Columns.Add("param_field"); dt.Columns.Add("param_label");
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I am biginner regarding Database in vb.net I have a ms access as db
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i am trying to update my database via a textbox on my web page.
so that when a number is entered into this textbox and the button is clicked, it goes and changes the previous value to the one u have just entered.
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click Try ' cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and SettingsAshMyDocumentsplatypus_holidays.mdb;") 'Connection String cn.Open() str = "update holidays set holidays_left=" & CInt(TextBox3.Text) cmd = New OleDbCommand(str, cn) icount = cmd.ExecuteNonQuery TextBox4.Text = "The value was change to " & icount Catch TextBox4.Text = "The value was not Updated" End Try update_holiday_values() cn.Close() End Sub
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SELECT [PID], [GID], [TID], [SID], [NEWSID] FROM [TableOne] WHERE ([NAME] = ?)
After builder this query, I click advanced button. However, generate insert, update, and delete Statements is not enabled.
