DataSource Controls :: L2E: Get ToList() On A Joined Table To Work?
Jul 1, 2010from user in db.users
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Forms Data Controls :: FormView - Inserting A Value From A Joined Table?
Mar 11, 2011I'm joining 2 tables and using the formview. When I insert a record, I need to place the value of the max id + 1 of the second table in a field in the first table so that the tables are linked. I'm not sure where to put the value. I try to put it in the insert command and I've tried the select command but that doesn't work.
Table 1 - Product: ID, ProductNum, Brand, Description
Table2 - Brand: ID, BrandName
(Brand from Table1 is linked to ID from Table 2)
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
DeleteCommand="DELETE FROM [Product] ..."
InsertCommand="INSERT INTO [Product] ([productNum], [Brand] VALUES (@productNum, @Brand)"
SelectCommand="SELECT Product.ID, Product.Brand, Product.Description, Brand.ID, Brand.BrandName From Product INNER JOIN Brand ON Product.Brand= Brand.ID"
UpdateCommand="UPDATE [Product] SET [productNum] = @productNum, [Brand] = @Brand ......"
I've Tried InsertCommand="INSERT INTO [Product] ([productNum], [Brand] VALUES (@productNum, MAX(@Brand.ID) +1)"
or setting BrandID =Max(@Brand)
DataSource Controls :: Error 18 Cannot Convert Method Group 'ToList' To Non-delegate Type
Feb 17, 2010I am getting an error on the return saying
Error 18 Cannot convert method group 'ToList' to non-delegate type System.Collections.Generic.List<string>'. Did you intend to invoke the method?
DataSource Controls :: Cannot Work With System.Data.Linq.Table
Mar 31, 2010Is there a way to do the following in VB:dim sTableClass as string = <my underlying table class in linq>dim dbTab as system.data.linq.table(<typed class of sTableClass>)I've tried cycling through the table objects of the linq data context and retrieved the following: Dim ddData = pkDB.GetTable(tt.RowType.Type.UnderlyingSystemType)(where tt reflects the row of the table I want to retrieve) But the expression returns and itable and I need the table equivalent but can't get this to work with a stri
View 1 RepliesC# - Linq Joined Table Record Delete - How To Delete With Using Linq
Feb 27, 2011I have a question about linq delete.
I have 2 table in database and they are joined.
First Table: UserID, UserName, UserSurname, UserPhone, CompanyId
Second Table: CompanyId, CompanyName
First Table I have many recods with related second table.
I want to delete one company in second record, But firtly I have to delete users (more than 1)
How can I delete it with using linq?
ToList And Querying Multiple Entities?
May 13, 2010I have the following code for the SelectedIndexChanged event of a drop down list. This works fine as it is but this entity has a relationship to another entity (Genre). if i change the select statement to { m, m.Genre.MovieGenre }).ToList(); it doesnt work as contains anonomyous types.
[code].....
DataSource Controls :: Select A Record From A Table And Insert Into B Table Using Linq?
Jun 29, 2010how can i select a record from A table and insert into B table using linq?
View 2 RepliesDataSource Controls :: Way To Retrieve Data From A Table, Modify And Insert It Into Another Table
Jun 13, 2010Basically 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]...
C# - EDMX New Column Generates Error On ToList() Call
Jan 27, 2011We've added a new column to a database table. The column is defined as follows:
Name: DisplayAsSoldOut
Type: Boolean
NOT NULLABLE
Default Value: 0
We've refreshed our EDMX data model and the new column appears just fine. We are on an ASP.NET 4.0 platform using C#.
We have a class defined as PagedList which inherits from List and implenents an interface IPagedList
Within the PagedList we have the following method:
[Code]....
When we reach the following line:
{ AddRange(source.Skip((index) * pageSize).Take(pageSize).ToList()); }
we receive the following Exception ...
Type: System.Data.EntityCommandExecutionException
Inner Exception: "Invalid column name 'DisplayAsSoldOut'."
I've tried searching for this type of exception but to no avail. The column appears in the EDMX dataset just fine. I even created a small throwaway program and imported the EDMX to do a simple read from the database and it worked fine. Has anyone run across something similar?
DataSource Controls :: How To Insert StudentId From One Table Into Its Foreign Key In Another Table
Jun 9, 2010I have two tables - Student and Advert.
I want to do the following;
1. Student is logged into their account (session is authenticated)
2. StudentID is primary key for that table, it is a foreign key for table Advert
3. When student is logged in, they create advert
What I want is their student Id to be input into the advert table when this new advert is created. How is this possible?
DataSource Controls :: How To Create The Pivot Table To Search The Table
Feb 26, 2010I'm assuming I need to use a pivot table from what I've found so far. However, every one that I've seen has not had the date setup like I have.
I have a Gridview on my page which I need to be populated like so
Date NCMR
1/1/10-1/31/10 #
2/1/10-2/28/10 #
I want to do this for 10 months... bottom record being the current month (or last month). I would also like the Date to format to January 2010 I used the above date format because that is how it is in the table. Basically, I need to know how to create the pivot table to search the table for 1/*/10, 2/*/10, etc
DataSource Controls :: Update Another Table Automatically As Row Entered In First Table?
Mar 1, 2010I'm sure this has been answered many times already, but I still can't seem to find exactly how to search for this issue, so apologies in advance.
Anyway, I have a VB script for entering a row of data into a table by a web user. When this row of data is entered, I wish to take some of the values from the columns of the "primary" table, and have that data automatically create a new row of data in a "secondary" table. I think I'm part of the way there, here is my script:
[code]...
"ProductsByMfr" is the "primary" table - the table that the user adds data into when the button click event is fired.
"DealerPricing" is a "secondary" table that I wish to have some of the data from the newly-entered row in ProductsByMfr copied into. Am I even close here?
DataSource Controls :: Update Table Based On Another Table?
Mar 1, 2010I'm trying to update one my my tables from a field in another table.
I have Address fields on both tables and the old table has some addresses I need to copy over (I dont want to copy/paste or type them all in obviously). I basically need to:
[code]...
DataSource Controls :: How To Copy One Table To Another Table In Dataset Using C#
Jun 18, 2010how to copy from one table to another table in dataset using c#
View 2 RepliesDataSource Controls :: How To Use Primary Key Table And Foreign Table
Jan 1, 2010How i use primary key table & foreign key table data for retriving the data with each other.I had make both table i confuse how to use it.
View 1 RepliesDataSource Controls :: Can Transfer Data From A Table To Another Table
May 15, 2010May 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
DataSource Controls :: Database Table: Move Row To The Top Of The Table?
Sep 5, 2010I have a table in my aspnet database. I added a bottom row "Not Selected", if the user doesn't select from a databound drop down list. This row is at the bottom, because I just added it to the table data. Is there any way to move this one row to the top of the table manually? There is not "cut" and "paste" when I select the whole row.
View 3 RepliesHow To Get A Joined Query To List Object
May 5, 2010I have a dynamic sql query which contains more than one table joined. Normally I get this query to a datatable and use it. For now I want to get result of this query to a list object.
View 2 RepliesAsp.net - Gridview Filtering Via Joined Tables?
Oct 15, 2010I'm trying to display data which comes from a join on two tables (or more) in a gridview I want to be able to filter the result set via user given input (text boxes on page)I have tried the standard tutorials but cannot find something which goes beyond displaying one table result sets in the gridview. If I go through the configure gridview and configure datasource wizard for any datasource (sqlDatasource, object, entitydatasource), when I use multiple tables I cannot use the 'where' parameters in the wizard, and therefore need to have the selecting code in the code-behind, but i'm unsure where exactly to put this.
[code]...
SQL Server :: Return Joined Data From Two Tables?
Dec 6, 2010I know this has to be easy. I'm just not sure of the best method to use. Should I be using ViewData?
Table 1 has columns:
ID
Name
TypeID
Table 2 has columns:
TypeID
TypeDescription
The tables are linked by a key on the TypeID column. I want to display:
Table1.ID
Table1.Name
Table2.TypeDescription
SQL Reporting :: Joined Tables - Concatenate Rows Into Single Row?
Feb 13, 2010Im having a go at doing a report for my asp.net application. I have 2 tables, one which lists a loan we have given to a customer, and another table which lists repayments against the loans.
I want to display each loan and how much is outstanding against it. My problem is that each loan is repeated in the table for each repayment against it. So when i try to sum up the loans awarded to a customer, if they only have one loan and have made 3 repayments against it, it sums up the amount awarded against each record.
eg, if i award a customer a loan of £200, and they make 3 repayments of £50, 3 records appear in the table. The amount awarded is repeated against each repayment, and when i total a customers loan amounts, it totals 3 x £200.
I have put the details into the grouping row, where it is grouped by loan_id, displaying the toal of repayments instead of each repayment. This stops it repeating in the table, but when i total the amount awarded field it still calculates 3 x £200.
I tried calculating the total on the report item after grouping but you cannot calculate on a report item.
Is there a way to stop the table from repeating the amount awarded against each repayment? Or even a way in the SQL statement of the dataset to make it display a total of repayments rather than each repayment. Cant see how to calculate a total repaid as i would need to pass a Loan_id in as a parameter.
DataSource Controls :: UPDATE Doesn't Work - How To Fix It
May 19, 2010I try and update my table with the following
[Code]....
I dont get an error or anything, nothing happens, and the date remains the same.
DataSource Controls :: How To Work With Oracle And SQL Server Using EF4?
May 18, 2010We are working in a new N-Layered application with EF4 as ORM. As a requirement, we need to give support for both SQL Server and Oracle existing databases.
Our wish was to build a single EDMX model and then generate our business entities from a TT file.
The main problem was that database providers may generate different .NET types from our database field types. In this case, we'll have different EDMX models and then different auto-generated entities, which is more or less the same as have two different applications.
I don't know if we could have different SSDL files with specific database information (one for Oracle and another one for SQL Server) in separete files and share CDSL and MSL information for both databases.
Would be this solution possible?
Someone knows some other way to work with Oracle and SQL Server using EF4?
DataSource Controls :: Sql Update Does Not Work But Gives No Error?
May 7, 2010sql update command. I have created two forms for update,
1. In first one I retrieve details in text boxes vai id entered by user.
2. In second one I display a grid and on the EDIT hyperlink I pass on the value of the primary key to another update page with same syntax as first one. When I click on update button on this next page, I get a successful update message but the data in the
database is not updated. Also I don't get any kind of error.
What is going wrong with the code?
Here is the code for the update page in second situation.. BTW I am displaying the details in a datagrid.
[Code]....
DataSource Controls :: Getting An Auto-increment Field To Work In SQL
Feb 11, 2010I'm trying to get an IDENTITY column to auto-increment with each new row inserted, so that the field (userid in this case) can be used as a unique identifier.
However, I'm getting this error:
[Code]....
My code looks like this:
[Code]....
I don't understand - if I have to explicitly insert something into my auto-increment column, how do I know what to insert? Isn't the point of an auto-increment column that it's... auto?