DataSource Controls :: Does Not Perform A Session Based SQL Connection?
Mar 4, 2010
(1) "...this application is a very heavy SQL application, it does not perform a session based SQL connection, instead for every request it refers back to the base confirmation file on the web server and then opening or making a new SQL request the result being a very chatty SQL client!"(2)..." concerns specifically relating to the chattiness of the SQL client app. Please be cautious when "testing" the product for it may have a negative effect even on [the] faster WAN links"C. Example of Code(1) from a class helper file:
I'm trying to make a dropdown list with data available based on the users login name. Heres what I have as my SQL Query in the SQLDataSource:
SELECT Client_Name, Client_ID FROM Client WHERE (Client_Name LIKE '%@Client_Name%')
So say if the login username is "User1" but the database client name is "User1 Steel" I want the dropdownlist to pull "User1 Steel" as the display and Client_ID as the value from the dropdown list.
In my DAL i have more than 100 methods/Function, each and every method am opening the sqlconnection and closing the connection, this is taking too much of time to establish the connection at every time. So what i expect is one common class will create the SqlConnection that will check if the connection is Broken or Closed then create the connection again else return the connection, how to do this(Also i would like to apply ConnectionPooling).
My web application calls a stored procedure and stores the result in a .NET datatable. I'd like to use this datatable and join it with other tables in my database. Is this possible?
Would the best way to set this up be to create another datatable and then use a dataview to join both datatables?
I get from SQL Server Server Data. I need to use datas form 2 colums of my SQL query for a VB.NET. The VB.NET need 2 values for both colums and produce 1 answer. I what to display the value on the same line instead of the 2 1st values. How can i store the 2 colums wich lot of SQL values on my vb.net script and diplay the result with the other data from the SQL query ?
As you can see, the first 3 documents are for the same NIIN, and their total QtyReq is 6, however there are only 5 Available for this NIIN.
I need a way to remove the document 12346 because it cannot be filled, the other 2 document can though. I cannot figure this one out, but it seems like it should be pretty easy.I am using MS SQL Server 200
I trying to create a search mechanism for records in a EDM based on text entered on a text box in a web page.
For example, if I enter a partial name of a customer and/or state abrebiation for that customer on the Text Box (abc, TX)s, I want to search name and state fields in a Customer table in my database for matching customers.
I found a solution with the namespaceSystem.Linq.Dynamic, but for some reason it is not working. It does not expose the Search() method. Here is the code I am using to perform the search;
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 ="../error/error.aspx", LinkSubject = "subject" }; db.MainMenuLinks.InsertOnSubmit(li); db.SubmitChanges(); ShowLinks();
what is the problem?
my table have a primary key but i dont know why give an error!!!
Is it possible to perform an update command which performs addition using a value from a textbox? For example: User inputs a number into TextBox1 (I use regular expression validation to ensure this is an integer).
[Code]....
Basically if the user inputs 5 into TextBox1, I want the update command to subtract 5 from that user's ballance.
I have installed VS 2010 Ultimate and it came with SQL 2008. what version it is and also how to create a connection in place to keep using the Oreilly examples to hopefully learn how to develop in C#. I have been learning but it is getting more difficult. I try to follow the steps but it just does not make sense. provide some easy steps to check version and connection method to sql using 2010,
I did see a post for sql management(http://www.microsoft.com/downloads/details.aspx FamilyID=08e52ac2-1d62-45f6-9a4a-4b76a8564a2b&displaylang=en). I am going to download to hopefully be able to view the database. We have sql server 2008 at work and I have used the studio management for sql to run queries and would like to do the same with the version that was installed with the installation of 2010 ultimate. I can get the connection to the database so I can start learning how to build a dictionary and list for some queries. My goal is to create a aspx file that will show entries in a database we have at work.
as all we know that we can create very simple chat using ajax timer & web service , it runs well for few users .
i want to leaverage same idea for site where 5000+ users will be there in chat room , messages are stored in queue hold in memory * dispatched as user request that is through java script timers calling page method or service ,
how well it will perform ? i know GTalk implements XMPP protocol(jabber) for the web chat seems it will be difficult to got XMPP way ?
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]....
As you can see, the connectionstring parameter is defined to a specific connection string name and I need to be able to set such a parameter to a different value, for example, to a session variable content.
i am trying to create connection using OLEDB connection in my app. but i am not able to create the connection as in datasource i want to use Server.mappath, but cudn't find the right method to use it. i am trying to make connection with Access database file. following is code i have tried:
string path = Server.MapPath("~/uploadaccess/Production.mdb"); string ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & Server.MapPath("~/uploadaccess/Production.mdb")&";"; and also OleDbConnection myConnection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & path&";"); and tried this OleDbConnection myConnection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath("~/uploadaccess/Production.mdb"));
and this is the error i am getting:
Operator '&' cannot be applied to operands of type 'string' and 'string'
how to check performance of sql server query with load ,also wants to create load by any tolls like load runner,if any url for download load runner or any other tolls by which we can create load please give me some idea related to it.
I am trying to retrieve SessionItemShory column for given sessionid.The data stored is serialized so we need to deserialize the data to use it.I am trying to do that but its not working.
[Serializable] public class sessiondata { public string username { get; set; } public string country { get; set; } public string city { get; set; }
i have an asp page through which i want to access FTP server And retrieve data (only file properties )from there and get it in excel (or just display it on the browser)is there any way i can keep it simple and acess the data from the server ???
I am storing a custom "Organisation" object as a session variable. One of the properties of the Organisation object is "OrganisationID" (integer). I have a DataSource that requires a parameter value to run, and I want to use a SessionParameter to populate this. In a previous version, I stored the OrganisationID directly as a session variable. In that case, I could easily access it like this:
[Code]....
However, how do I now access the OrganisationID property of an "Organisation" type session variable (called "Organisation")? I have tried this, which does not seem to work: <asp:SessionParameter Name="OrganisationID" SessionField="Organisation.OrganisationID" Type="Int32" />
