DataSource Controls :: Way To Retrieve Data From A Table, Modify And Insert It Into Another Table
Jun 13, 2010
Basically i deal with two tables.i have a table T1 of the following format:id company_name i need to read this data and create a table T2 as followsi wrote the following code. it worked fine for retrieving data and modification but fails to insert the modified data into the 2nd table.the error is, it does not recognise the value for @token
ArrayList dynarr=new ArrayList(); // global variable
protected void Button2_Click(object sender, EventArgs e)
{
int row = 1; int i;
string strcmd = null;
string Connection = "Data Source=....";
SqlConnection conn = new SqlConnection(Connection);
string str = "select company_name from T1 where ID=@ID";
[code]...
I want to retrieve the data from the last record of a table. For eg: I have sorted the data in my table and want the value from the last record? How can I do that?
Is there a way to check that "saving" data to a table was successful and then do something after that?
I am working on a web app for an online photo album. It is the last project in Scott Mitchell's book: "ASP.Net 2.0 in 24 hours".
I am creating a page where users can enter new photo images. The functionality for uploading an image will come later. I am working on just inserting a new row into the Pictures table with an optional category, a required title and a required description.
I am getting an error when I try to insert a new row.
Here is a screenshot of the page with a shot of the dropdown list.
The Categories are user-specific. I am getting the correct values retrieved.
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There are two pretty simple database tables involved here.
NOTE: The CategoryID and PIctureID are both autoincrement integer columns.
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The page uses a DetailsView that uses a SqlDataSource that uses the Pictures table. (The DetailsView's Default Mode property is set to "Insert". The "Enable Inserting" checkbox is also checked.)
The dropdown list uses a dropdown control that uses a SqlDataSource that uses the Categories table.
When the "Insert" button is clicked the CategoryID value associated with selected (Category) Name on the dropdown list will be used along with the Title and Description values to insert a row in to the Pictures table. (If no Category value is selected, then a null value will be used for the CategoryID. This is OK because the CategoryID column in the Pictures table allows nulls.)
My problem is that I am getting this error:
Cannot insert explicit value for identity column in table 'Pictures' when IDENTITY_INSERT is set to OFF.
(FYI: I have the full version of both Visual Studio and SQL Server.)
Is there a way to copy a row from one table and insert to another but at the same time insert extra values to destination table?Let's say source table Item has values:
I want to copy row from source table where itemid is 25, insert it into destination table and add extra values: ChangeDate, ChangeReason, ChangedBy. I tried:
INSERT INTO ItemHist (ItemID, ChangeDate, ChangeReason, ChangedBy, ItemType, ItemModel) VALUES (ItemHist.ChangeDate=GetDate(), ItemHist.ChangeReason="why not", ItemHist.ChangedBy="me") SELECT ItemID, ItemType, ItemProducer, ItemModel FROM Item WHERE ItemId=25
but obviously it didn't work ("The name 'ChangeDate' is not permitted in this context. Only constants, expressions, or variables allowed here. Column names are not permitted.").
I have three table like above, table C is mapping table which has foreign key of Table A and B.How can i select and insert data in Table C using Entity Frame Work?
Some ids are pulled out from the XML field of a certain User Profile . Those ids have their text values stored in a SQL table.
What is the best way to map that xml list to the SQL table in order to populate a dropdown list which contains ids from the XML list and text values from the SQL table?
May you tell me how can I transfer data from a table to another table, the condition of non-repetition rows
as a procedure in database MS QSL server 2005 ,Works in the first day of the month I use the first table in the prodation environment it is contain the employee data and the second to update first table only
I have a table with a lot of records - it has a column called CallID I have another table with no records, but one that also has a CallID column I want to insert all the values from the CallID column in the first table into the CallID column of the second table.
I am doing a data warehouse project.I have two tables tblA (id, type) and tblB(city, no_crimes, type).I want to create (insert) a number of rows based on the value of no_crimes.For Example, in tblB(Leeds, 2000, murder). SO, I need to insert 2000 rows into tblA by a single INSERT statement (not 2000 statements).
An option to add a range of computers based on tag numbers, for instance, user input 800101 and 800110 would add computers SYS800101, SYS800102, SYS800103, SYS 800104, SYS800105, SYS800106, SYS800107, SYS800108, SYS800109, and SYS800110. Currently the app adds a single computer at a time.
Here I am using ASP.NET using C# and my backend in active directory.
i Am using Special character while insert in the database. When i user single Quotes('), it shows an error that "Unclosed quotation mark after the character string" How can i over come this issue. But i want to insert the special characters"
I have a table in SQL where I insert data (CatCodes) using C# code but I want to insert ID code (DealerID) with it as well. Following is my Stored Procedure and C# code:
[Code]....
C#:
[Code]....
As you can see, I am insering CatCode values in Categories table using string cbspecialities.
How can I insert DealerID the same way? DealerID is automatically generated in tblDealers table when "InsertExternalInfo" asp.SqlDataSource control runs "InfoInsert" SP.
I have a insert into statement thats inserting my numbers from a numeric text box on my aspx page. I am choosing the Amount Type then putting in a a number.
So i have a drop down that i select example Direct Charge then i enter 600.00 and click add it puts that in to the databse for me woot..
I then put in say Misc Credit and enter 200.00 it inserts in that into the database woot.
The look up table that has my amount types has a field called numeric opperator which is either + or - the Credit being a - and the Charge being a + then my stored procedure takes all my + numbers and adds them up and subtracts all the - numbers.
I want to change that so that it actuall be inserted into the table as a - number form the start. So I want choose Misc Credit enter 200.00 and click add then my event says o yea thats a credit insert 200.00 as -200.00
I've requirement where user can enter multiple columns like first name, lastname, email, age, sex fields and insert them into database.on my frontend aspx page, i'll be showing a single row initially with 5 text boxes(first name, lastname, email, age, sex) and a button to add more columns. when user clicks on add more, another 5 textboxes will be shown and then i'll be taking 5 + 5 (textbox values) and comma seperate them and need to insert into a table with primary auto increment key ID and the remaining 5 columns(firstname, lastname, email, age, sex). I previously worked on the same requirmeent but with only single column. Now i need to insert for 5 columns, How can i do this? Below is my stored proc which i used for single column insertion.
when i want insert a record i see an error like this Can't perform Create, Update, or Delete operations on 'Table(MainMenuLink)' because it has no primary key. with this codes:
MyLinqDataClassesDataContext db = new MyLinqDataClassesDataContext(); MainMenuLink li = new MainMenuLink { Link = "www.tprogrammer.com", LinkSubject = "subject" }; db.MainMenuLinks.InsertOnSubmit(li); [code]....
