I have a problem regarding database. I write to the database fine with this code:
[Code]....
When I close the application and view the Database with access.. the records are added ok, but when I start the application the records are deleted. This is what I have in the Form_Load:
[Code]....
I have created a page with a gridview in asp.net that displays the records of a database table and allows users to delete checked records by clicking on a delete button. After I delete a record and I try to refresh the page from the browser (I am using mozilla)I get the follow message:
"To display this page, Firefox must send information that will repeat any action (such as a search or order confirmation) that was performed earlier."
and if I click resend another record is deleted automatically. Even though I am reloading the gridview after the deletion the application executes again the onclick event of the delete button is executed and the gridview things that there is a checkedbox selected so the code executes my delete function again.
Is there any way to get rid of these behavior. I have been trying quit a few things but nothing works for me.
I have button, which fires an event, that deletes a record from the database. This is the source of the button:
<asp:Button ID="btnDelete" runat="server" Text="Delete" onclick="btnDelete_Click" />
But how can I make a confirm box appear before the deletion?
i write program in asp.net that this program connect to database frequency and database has very records, i search about solution that i connect to database for one time and another time i use this information and when table records was updated , my program connect to database twice...(for example my program connect to database one time and later when only records was updated ,connect to database...)
View 1 Repliesim trying to get a dataset from an access databaseim using this connection string:
<connectionStrings>
<add name="SiteConnString" connectionString="Data Source=c:inetpubvhostsdbmainDB.mdb"
providerName="Microsoft.Jet.OLEDB.4.0" />
</connectionStrings>
[code]...
[Code]....
When I am trying to insert some data I am getting error.
Could not find file 'C:WINDOWSsystem32ikcit.mdb'.
Unable to understand Why??
I keep getting a
InvalidOperationException: ExecuteReader requires an open and available Connection. The connection's current state is closed.]
It is because my connection is closed. What is wrong with my connection string? Why won't it open.
[Code]....
trying to connect an access db (.mdb) to a gridview control. the db is in a folder under my iis wwwroot folder. when setting it up i can test the connection ok, but when i go to save it, it comes back with 'the system cannot find the file specified'?
if it can test the connection ok how come it can't find the file? for the connection to test ok obviously the path must be right is there some restriction that the db has to be in the app_data folder? i notice when creating the data source and selecting browse, the only folder it displays and allows you to choose from is app_data. thats pretty restrictive and then makes it more difficult if that has to change when moving from development to production. is there some way to connect to a db outside of the project?
I having worked with asp.net in while.Working in VS 2008 it seems it embeds the database in the solution.I have a external database,that is used by other applications.How do I connect into that?
View 2 RepliesIīm learning how to use a web service with flash.
Now I need to connect the web service to my db.
This is what I tried:
Code:
Public Function HelloWorld() As String
Dim orgcon As New OLEDBConnection("Provider=Microsoft.jet.oledb.4.0;data source=c:dataDB.MDB")
Dim OrgDA As New OleDbDataAdapter("select * from organization order by orgname", orgcon)
Dim Orgds As New System.Data.DataSet
OrgDA.Fill(Orgds, "Organization")
Dim hwstring As String
hwstring = orgds.tables(0).rows(0).item(3).tostring
Return hwstring
End Function
The flash just gives me an error that there was an error opening the web service. For some reason I canīt debug it in vwd.
I have a task in which i have to compare 2 access databases
and in these 2 databases, there is a field "Customer_Name" Let's name both databases as DatabaseA and DatabaseB
In DatabaseA there is a list of Customer_Name that includes all the customers
Now I have to match this CustomerList with "Customer_Name" field present in DatabaseB
If Customer Name of DatabaseA is present in Customer Name of DatabaseB then leave it as it is
If Customer Name of DatabaseA is not present in Customer Neme of DatabaseB then rename the name of that customer as "NA" in DatabaseA'S Customer Name field
So i have to perform these 2 above mentioned things, is it possible to do it in asp.net coding ? just with a press of button (in button click even) to save time as the list of customers includes 3000 customers approx
When I try to connect to access database from app_data folder of the webform I am getting "Invalid UDL file" .
View 1 RepliesI 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.
View 2 RepliesI am trying to delete multiple records from an access databse with ASP.NET VB but I'm doing something very wrong .....
Here is my code ...
[Code]....
I would also like to know once I get this working how I would delete, additional tables linked to this table by another field not ID ??
I have table in database in which near about 2 lac records are available.
I am using access as database.
How can i get the particular row or records from the database in a minimal time
I want data to be retrieved faster
i m developing website using asp.net with microsoft access 2003 i have product details along with the images now i want to add this images into database but how i add this pictures what code is use if there are 100 products with 100 images i want to show 10 records per page i need also code of that
View 3 Repliesi m developing website using asp.net with microsoft access 2003 i have product details along with the images now i want to add this images into database but how i add this pictures what code is use if there are 100 products with 100 images i want to show 10 records per page i need also code of that
View 17 RepliesI am new to ASP.NET. I have encountered a problem in navigating the database records that is displayed in the web form , the Next and Previous buttons. I have 4 imageboxes and 2 textboxes under each image box for displaying database records.
I am currently using an Access database with a table "Images" and there are 4 columns in it. "ImageID", "ImageDescription","ImageofPicture","Description".
My Code is below:
[Code]....
I am creating an insert statement in my c# code to insert records to an access database table. I am getting the error copied below using c# code. When I copy the generated insert statement from the console and run this on my access database, it succesfully appends a record in the table.Insert statement generated:
insert into [Pet Fish-log 2010] ([Specimen Type], Year, [Lab Number], [Last Name], [First Name], [Middle Initial], Gender, [Date of Birth], [Collection Date], [Date Received], Client, [Tissue Type], [Block Number],
[code]......
-7vf- I write a program by c# to check and retrieve data from database
The problrm:I have one table(1), I want to make update for that table(1) that is by compare the one column in table(2) with the right side from one column in table(1), so if there is any similarity it will retrieve the data and if there is no match just it will make the record empty(null) "the data type of retrieving columns: number 'double'", but the problems is:
I try to retrieve 11 columns, 7 of them are empty .the program run with out error ,but it will retrieve some records with full data 11 columns, but some of records has only 5 columns have data and 7 columns are empty (these records when I run the program did not retrive any columns, it give me empty records!!)
this is the code :
while (or.Read())
{ or.GetValues(field); OdbcCommand oc2=null;
[code]....
I want to retrive all data which are empty or null and all data
I currently have a datagrid bound to a table with tens of thousands of records. I display the datagrid using the existing asp.net 2.0. I show ten records at a time.
My problem is whenever I try to access the next page, I gets all the records again from the database and then displays the ones that are required. This is slowing down the app. Is there feature within .net 2.0 which will help me optimize this issue? I cant use third party controls or ajax.
UPDATE
I cant use SQL to get 10 records at a time as well. Without changing any existing business logic or data retrieval, I want to do this.
I have a issue where I am trying to pull some records from an Access 2007 DB that has linked tables from a SQL 2005 Server. When I go to do this the browser IE8 just sits there and does nothing. THe little progress bar at the bottom moves about half way then that is it. It will sit there and show no errors or do anything. I have experience with connecting and manipulating Access and SQL server DB's but not through Access with linked tables from SQL Server. Here is test code below:
[Code]....
This does not produce an error or anything. The browser just sits there and sits there. Is there something I am missing?
The website is over half way done and the functionality for the blog is (except for adding posts) is already implemented and working correctlyI have a SQLExpress 2008 backendBlog posts are rendered on the page with full HTML markup within a label control.
All of the above is done and working. Though I am essentially new to creating websites with ASP.NET, CSS and SQL, I am sure that I could simply carry on and make a login page with some controls that would allow me to add records (blog posts) directly to the database on the host server. However, I am fearful of doing this because I know that malicious code can be passed in this way. Also, because of my lack of knowledge, the only way that I know of to pass the code from a control to the database is to disable validation for the page the control is on. Without a doubt I do not want to do that.
So what are my options for getting blog posts into the database? Is it safest for me to fully create the post in html and update a copy of the database that resides on my local machine? If I do it this way, how can I merge the records from the database on the local machine with the records on the remote server?
I have a SQL database. I am getting a datatable from SQL. In SQL Query the table is having null values in the output. But when it is coming to the front end, the null values are replaced by empty values.
So in the front end in the datatable i am having empty values in some cells. I am trying to insert this datatable into access. For this i am using following code...
OleAdpData.InsertCommand.Connection = OleConn; // OleConn is the OleDbConnection
OleAdpData.InsertCommand.Connection.Open();
OleAdpData.Update(dtData); // dtData is the datatable
OleAdpData.InsertCommand.Connection.Close();
It is inserting the datatable to access database. But it is inserting the empty spaces as present in the datatable. I want to insert NULL into the cells in access datatable where the cells are empty. Where should i add my logic for this.
I have created a web application and an SQL database using Web Developer 2010 Express. I have SQL Server 2008 and SQL Server Management Studio Express. In order to deploy the database to my hosting space I need to create a .BAK file from my new database. I think I can do this from with the Management Studio, but can't figure out how to get it to connect to the database. I have used Management Studio before to retore another SQL database and the only connection I see when I open the Management Studio is the old connection to the old database. How do I connect to my new database?
View 6 Replies
