DataSource Controls :: Return New ID From LINQ InsertOnSubmit?
Jan 21, 2010
I have an autoincrement ID on some table.I need to know what is the ID of the new row when I add the object using InsertOnSubmit, but this method returns void.What is the common way of doing this.
I am unsure why my code isnt working can anyone help
[Code]....
here is the error
Error 1 The type arguments for method 'System.Data.Linq.Table<clsMakeCall.tblMakeCall_Data>.InsertAllOnSubmit<TSubEntity>(System.Collections.Generic.IEnumerable<TSubEntity>)' cannot be inferred from the usage. Try specifying the type arguments explicitly. C:Documents and Settings .dunneDesktopsourcePhoneSystemclsMakeCallclsMakeCallclsALL.cs 50 13 clsMakeCall
I am trying to fill a gridview with the data from Product table selecting few columns . I am using 3 - tier architecture and in DAL getproduct(userid) I am writing the query but cannot figure out exactly how to get that working .. here is piece of method I wrote
I have a set of controls on my page, Start Date, End Date, User, Status
Start and End Date are expected to always contain a value
User and Status I want to also have an 'All' option, where in it would return all results/not filter.
One method I can think of using for this, is the put the queries in a If scenario, where
if(user == All), use linq query B if(user != All), user linq query A
where linq query A contains the filtering on Users, and linq query B does not.
What I have so far is
[Code]....
What I need
[Code]....
where User == ??,
can the control that populates that contain a wild card option as well? ie *, so that if user == Name, it filters on Name, or if user == *, it returns all?
I am working on asp.net 3.5 and in MVC using Linq to SQL classes. In my MVC project i am calling stored procedure using linq to sql that conatin query joining two tables.Below is my code in Partial class
[ Function(Name="dbo.GetUserWiseThreadDetail_SP")] [ResultType(typeof(Thread))] [ResultType(typeof(Reply))] public IMultipleResults GetUserWiseThreadDetail_SP([Parameter(DbType="VarChar(30)")] string userID) { ExecuteResult result = this.ExecuteMethodCall(this, (MethodInfo)(MethodInfo.GetCurrentMethod())), userID); return ((IMultipleResults)(result.ReturnValue)); }
In one of the controller i have made one more class
public class MypostIndexData { public IEnumerable<Thread> Thrds { get; set; } public IEnumerable<Reply> Repls { get; set; } public MypostIndexData(IEnumerable<Thread> thrds,IEnumerable<Reply> repls) { this.Thrds=thrds;this.Repls=repls; } }
finally coding of controller action method
ForumDataContext pmforum = new PMForumDataContext(); public ActionResult MyPosts(string userId) { IEnumerable<Thread>thrds; IEnumerable<Reply>repls; IMultipleResults result = pmforum.GetUserWiseThreadDetail_SP(userId); (this satement doesnot give any result,if i execute stored proc in sql it give the results) thrds = result.GetResult<Thread>(); List<Thread> thrdlist = new List<Thread>(thrds); repls = result.GetResult<Reply>(); List<Reply> replylist; if (repls != null) { replylist = new List<Reply>(repls); } return View(new MypostIndexData(thrds,repls));
I am unable to understand why i am not getting any results?
I am writing a plugin to help with a current ERP system we have that I am not allowed to modify the data structure at all. The table I am dealing with has over 100 columns and I am wanting to set my linq object propertychanged event and submitchanges or do I really have list out each property and set it equal to the new one?Below is an example of what I am trying to do:
Like that I have large number of controls on my form. I have dought, if I assigned like this, db.usp_ATI_FetchPatientDetails(iPatientID).ElementAt(0).Last_Name.ToString(); to every control, then I have set of controls like,
My question is that, for each control the Stored Procedure called or not? If it is yes then it is time consuming and I need to use LINQ to DataSet or LINQ to Object rather than to call SP for each control. What is difference between LINQ to DataSet and LINQ to Object?
public IEnumerable<Customer> GetCustomers() { Table<Customer> custObject = context.Customers; IEnumerable<Customer> filteredCustList = from customer in custObject select customer; filteredCustList; } GridView2.DataSource = utilLinqClass.GetCustomers(); GridView2.DataBind();
(no errors at build time or at compile time) Error I am getting is: An attempt to attach an auto-named database for file App_Dataaspnetdb.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
I have created a stored procedure that reset my tables' identity value. The store procedure works fine when I didrectly run it in my ms sql server 2008. It reset my table Identity value However, when I call it from my function reset, it returns -1, and does not reset my table identitity value. The function to restet my identity value is:
[Code]....
My stored procedure is
[Code]....
To call the the function:
Dim result As Integer = util.resetTableIdentity("myTable", "id", 60) util.print(result)
I got result is -1, and it does ot reset my table identity. Why? How to resove it?
I have textbox for searching a Names in My database. I return the information from the Select Statement in GridView, but i want to know the number of affected rows. How to do that?
I have 2 tables. Table_A has one to many relationship with Table_B.
For example. Table_A has an ApplicantKey and in Table_B I am storing (Resume_name and CoverLetter_name for the Applicant). Joined by ApplicantKey
Now when I join them and execute the query obviously it returns me two rows. But what I want is that it should return only one row with Columns like Resume_name, CoverLetter_Name
accessing the return value of the SQLDataReader. My code is below. Actually the variable that I assigned my SQLDatareader object to is say HasRows property=true. But I am having trouble accessing the return value. And I get the error when I use the following code .Text =SQLDataReader("Contact Name").ToString I get the following error message: Invalid attempt to read when no data is present.
con = New SqlConnection(ConfigurationManager.ConnectionStrings("Connect").ConnectionString) Dim getDirectorsCMD As SqlCommand = New SqlCommand("dbo.spGetDirector", con) getDirectorsCMD.CommandType = CommandType.StoredProcedure Dim myParm As SqlParameter = getDirectorsCMD.Parameters.Add("@BuildingTID", SqlDbType.Int, 15) myParm.Value = ddlBuilding.SelectedValue [code]...
I followed this BRILLIANT article and found out how to make a data layer, i just need the insert method in this code to return the ID of the record inserted.
For example, when the user captures the details, the save button is clicked, i will want to display in a label "Your Reference Number is "
try and have look at the article so you will understand how the code is, so it will not be hard to edit my code.
I want to select dates that also fallin the range. Heres the scenario: I have an event from 01/20/2010 TO 01/25/2010. So right now it would only return a date of 01/20/2010. How could I return 01/20/2010, 01/21/2010 , 01/22/2010, 01/23/2010, 01/24/2010, 01/25/2010? Mind you only a start and end date are in the database.
I'm using LINQ to query my database, and I don't want all the records returned all at once. Instead, user should be able to select Next 5 and Previous 5 using buttons. As of this moment I have selected the first 5 rows in the Item table in the databas like this:
private void ShowItems() { var items = (from p in db.Items orderby p.ID descending select new { ID = p.ID, Item = p.itemName, Qty = p.quantity }).Take(5); [code]...
I have a select statement in a stored procedure and want to be able to retrieve the key column value (PRODUCTID)and return it as Output when Select statement is executed on input Parameter (NAME).
addition, return two further output values (COST,TOTAL).
note the grid control expects to receive all values at once! so i need to get out these values at the same instance of execution.
Select productID,COST,QUANTITY,NAME,TOTAL,DATE FROM PRODUCTS WHERE NAME=@NAME
You notice "Cough" is in the adidescription column twice. I would like to return only one row for adidescription with the same value. So what I want returned is this:
Cannot implicitly convert type 'System.Data.SqlClient.SqlParameter' to 'string' I have a stored procedure on SQL 2000 returning an email from a database table (aspnet_Membership). The email type from the table is nvarchar. I have a method (in C# in the code behind) that gets that value. But the debugger doesn't like the last line:
return returnEmail; // returnEmail is a string variable we created to capture the stored procedure's return value
I've tried doing returnEmail.toString() in several places, but still get the same error message for the last line of code (returning the email).
I have a stored procedure which returns a value to state if the userlogin is valid. but i want to return the data and store it in a data session as i will require the user details in the checkout page.
is it best to get individual parameters out of the stored procedure then assign the variables to a datatable which is then assigned to session Or how can i get all the details returned from the stored procedure for the table? not sure which would be the most effective solution?