DataSource Controls :: Adding Record To Database Using Vb.net?
Jul 12, 2010
I'm a beginner in programming and also to asp.net. I am trying to insert a row into an sql database using vb.net but I keep getting an error whenever I try to execute the code. I have read other post but I do not understand the solutions or how to place them within my code. Here is my stored procedure and vb.net code.
I am counting from a table for that i have written code as below
protected void get_Id_Afterpoint() { int counter = 0; string strSql = "select count(*) as ID from tblEnergy where ID=?"; OdbcCommand com = new OdbcCommand(strSql, con); com.Parameters.AddWithValue("ID", DropDownList1.SelectedValue); OdbcDataAdapter oda = new OdbcDataAdapter(com); DataTable dt = new DataTable(); oda.Fill(dt); if (dt.Rows.Count == 0) { lblID2.Text = "1"; } else { counter = dt.Rows.Count; counter = counter + 1; lblID2.Text = Convert.ToString(counter); } }
there is no record related to DropDownList1.SelectedValue. but as i am counting if(dt.rows.count) and i put break point on the bolded part it shows 1 record. how it can be possible?
need a connection to only write records without using sql, i need to prepare my new table records and write it to the database in a single passage, im using oledb how is it done?
I have webform which has insert button to insert/Add new record into my database table. It works fine but the problem is that I have a unique field name of the field is txtQuotes ,The user should not be able to insert a record that contains the same value for that field.How can I check for duplicate?
I have 3 pages, one to add a category, one to edit the category, and one to delete the category. The add and edit work fine. The delete is not working for some reason. I click the link on my site to delete it, and I'm just staring at the green bar in my browser taking a long time. The add and edit don't take long at all to perform their function. I'm thinking this is a connection string issue, but I don't see how it can be the case. It relies on web.config for it just like the other pages. Following is the delete page code behind and also delete cascade from the business logic area. After the page refreshes, I'm not getting any diagnostics or error messages which I have in the code. Doesn't this have to mean a db connection issue?
Is there anyone know the reason why that there duplicate data in the database most of the time the information is same like name,description.but the unique id is different and the date time is got different millisecond.I confirmed that there r no loop condition on the code.
Basically what i have is a button and i want this button to add value in database, i mean if the value in the database is 1 it adds 1 to it, so that the value becomes 2.
copying some data from an existing remote database(SQL2005) to an existing local database.First - I have very little experience in this area. I'm using Visual Web Developer 2008 (VB). Currently if I want to update some data in the local database I do something like this:
Dim conn As Data.SqlClient.SqlConnection = New Data.SqlClient.SqlConnection(ConfigurationManager.ConnectionStrings("CCCdbConnectionString").ConnectionString) Dim cmd As Data.SqlClient.SqlCommand = New Data.SqlClient.SqlCommand("UPDATE [Orders] Set [OrderStatus]
I want to retrive thousands of record from the database. Please tell me the the most efficient way to do this. I am using sql server. I want to bind A gridview with these records please let me know the most efficient way to do this so that the loading time for the page is reduced
I have an SQL datasource that successfully enters customer details into a table. What it includes is the persons address. First of all we add the persons address, then we add the persons name to that address in a seperate physical procedure. i.e. on a different form.
What I need to do is try and stop users entering the same address twice. The way I have thought of doing this is by making a string field called AddressIdentity and have this contain the door number and the postcode of the address with all the spaces stripped out. Then when adding the address, it checks if this exists before adding it. However I cannot work out how to put the 2 fields together without using the codebehind file, which I don't mind doing if I need to, but I'm sure its avoidable.
Here is my code - I have only included the relevant parts:
but of course AddressIdentity is a string. Do I use ' ' marks with an & sign? Or can't I do this?? Maybe I need to use the codebehind anyway to see if the field exists before inserting it?
I wanted to know if it is possible to dynamically add columns to a table in the Database?I know how to create a table dynamically in the DB the code for it is given below, howver I do not know, how do I add columns to it dynamically.
Dim NewTable As String = "CREATE TABLE Dynamic " + " (" + " job_id smallint" + " IDENTITY(1,1)" +[CODE].....
Looping Through Checkbox List and adding selected items to MS SQL DatabaseI don't want to store it using comma deliminator.I will need to do a search on analyze which users have what music in common.The image above is from a tbl_lookup_music table I created. MusicID, MusicNow how should I build the logicIF we have a user that has a tbl_profile table. And listens to many different types of music. How should We store the data.------------------------------------------------------------------------------------------CREATE TABLE [dbo].[tbl_lookup_music]( [MusicID] [int] IDENTITY(1,1) NOT NULL, [Music] [nvarchar](64) NOT NULL, ---- Type of music. CONSTRAINT [PK_tbl_lookup_music] PRIMARY KEY CLUSTERED ( [MusicID] ASC )WITH(PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF,ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY----------------------------------------------------------------------------------------------CREATE TABLE [dbo].[tbl_Profile_Music]( [ProfileMusicID] [int] IDENTITY(1,1) NOT NULL, [ProfileID] [int] NOT NULL, [MusicID] [int] NOT NULL,PRIMARY KEY CLUSTERED ( [ProfileMusicID] ASC)WITH(PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF,ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]) ON [PRIMARY]GOHow should I setup this table.
I am creating an album using the following stored procedure, which returns the primary key for the newly created record:
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE PROCEDURE [dbo].[fpa_sp_albums_update_insert] @album_id int, @album_name nvarchar (50), @album_descr nvarchar(250), @album_img_cover_id_FK int, @album_creation_date date AS If @album_id > 0 UPDATE [fpa_albums] SET album_name=@album_name, album_descr= @album_descr, album_img_cover_id_FK = @album_img_cover_id_FK, album_creation_date = @album_creation_date Where ((album_id = @album_id)) Else INSERT INTO [fpa_albums] ( album_name, album_descr, album_img_cover_id_FK, album_creation_date) VALUES ( @album_name, @album_descr, @album_img_cover_id_FK, @album_creation_date) Return SCOPE_IDENTITY();
I execute the above stored procedure using the SQLHELPER. The VB.NET code for the page is as follows:
[Code]....
However, the createdAlbumID always shows -1 instead of the id for the newly created album.
I have a GridView and DetailsView on the same page. If the GridView has data, I can Select a row and it brings up the DetailsView from which I can edit that record or click NEW to create a new record. Without a record to Edit, the New link and the DetailsView control is not visible. What is considered best practices for Inserting the 1st record using a same page Gridview / DetailsView combination?
I would like to check if a particular value already exist in the database Gidview row. If the value already exist, tell the user that he has already entered the record and don't save. otherwise save the record. In my case I want to check the "Random number".
I'm very new to this area and am using ASP.NET 3.5 with WMD 2008 Express Edition and VB code.
How do I write records to the SQL database using VB? I want to use the connection string, etc used in the ASP.NET controls if possible.
My website is a Rugby Club site and I've an SQL database of match fixtures which include TeamId(1XV, 2XV, etc.), Season(2008, 2009, etc) and match date.
I allow some users to update the fixture details but want to insert a series of new fixture records for the neext season which contain just TeamId Season and Match Dates. I therefore want to take the season and Team Id from label fields and then create match dates by adding seven days to a start date.
There are several articles and blogs that are sort of about this subject but I haven't found one on point. Wondering if anyone has done this? Using VS2008 creating an ASP.NET 3.5 app with a strongly-typed dataset connecting to an MS SQL backend. In one TableAdapter, I have a custom Insert statement that inserts the record into the primary table. There are two other tables the also need records inserted into them and those records contain the record ID from the primary table. Here's an example of what I'm trying to accomplish:
If I have an ID, I would like to retrieve the next item that also has the same category as the item ID I have. So, for example, if I have ID=2, I would like to return the item with ID=4 (as item ID=3 has a different category).
Into below code which is working fine, but the last section which started from using (SqlCommand SendMailcmd ... update it as i want when the user click on the button the code take the AdsID and (QAdsEmail "the user email") and send an e-mail to user depending on QAdsEmail and inside the email create a link to URL... so the user when he receive the mail he can click on it and move to the page to edit his Ad info ...
The table where below info will store in is called "ads" and the column that's need for sending email with ad info/the E-mail part of the code below i just copy it from another part of my application ...
Just have a problem, I want people to join a mailing list, I just have a textbox and button. When a user enter's their email address, the address and time are inserted into a database. However, if the same email is added again I would like for a message to appear saying the record already exists.
Can someone show me how to do this, here is my current code:
