ADO.NET :: Check Result/success Of Linq Insert/update Query?
Jan 3, 2011How do i check if linq insert/update query was successfull or how many rows were added/updated?
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Forms Data Controls :: Displaying Correct Result Inside DropDownList From LINQ Query Result
Jul 1, 2010I have this ListView that has a Drop Down List.Everything works fine (I think/hope) except that the drop down list are not showing its result correctly.This is the code.
Front-End
[Code]....
The code behind consist of the page_load and the ItemDataBound
[Code]....
Linq To XML - Getting Correct Query Result, But It's Buried Deep In The Result Var?
Mar 1, 2011I'm having a problem with my Linq to XML query. I'm getting the result data I want, but it's nested so deep that there must be a better way.Here is my XML:
[Code]....
I'm trying to get a list (simple string[]) of all Item IDs where Category Names contains "Other".Here is my Linq:
[Code]....
[Code]....
Here is a snapshot of my result from Visual Studio:The results I want are there ("item100", "item400", "item500"), but buried so deeply in the results var.
How can I get the query to return a simple
string[] = { "item100", "item400", "item500" }
ADO.NET :: How To Use Order By On The Result Of A LinQ To SQL Query
Dec 8, 2010How can I use Order by on the result of a LinQ to SQL query ?
I have the following Situation:
Dim ret As New Object
ret = From status In tableStatus _
Select status.STATUS_ID, _
Text = Function_GetText(status.TEXT_ID)
Now I have to order this result on the field Text, has anyone an idea? (I can't use in my case Orde by Function_GetText(status.TEXT_ID))
ADO.NET :: How To Randomize A LINQ Query Result
Dec 5, 2010How to randomize a LINQ query result?
Below takes 4 of the records but it won't randomize in every request. [:(]
Dim products = (From p In Northwind _
Order By Guid.NewGuid _
Select New With { _
.Name = p.Name, _
})
Return products.Take(4).ToList()
ADO.NET :: Get A Single Value Result From Linq Query
Aug 18, 2010i want take a single value result from linq query
if i have :[Code]....
the variable result does not return nothing, only tostring() and similar how can i get a single result from linq query and use it in my ID variable?
ADO.NET :: Assign Linq Query Result To GridView?
Dec 9, 2010New to Linq and Var type have a method where linq query is executed, want to return the result and assign it to GridView. but method don't take the return type as var.
So was wondering how do i return this query result?
Should i assign this result to DataTable first and make the method return type as DataTable?
Here is the code, This is what i want to do but not sure what is the right way
[Code]....
What Is The Underlying Type Of The Result From A Linq To Entities Query
Jan 20, 2011for example,
var result = from category in myEntities.Categories
where category.UserId == userId
orderby category.CategoryName
select category;
What is the type of "result"? I casted it to an IQueryable variable and it worked except it did not have some of the methods normally available, e.g. Count(). In my program I have to cast it to some explicit types and then use the Count() method.
ADO.NET :: How To Add Hard Coded Values To LINQ Query Result
Aug 31, 2010I am running a LINQ query which populates a list used by a DropDownList, I need to insert an "Unassigned" value to the list. The function below queries the values correctly from the db but does not insert the "Unaasinged" value to the list.
[Code]....
MVC :: How To Pass Linq To Entities Query Result To View
Apr 1, 2010i have a new question: i read all the tutorials that i found but i cannot understand how to pass a result of a linq to entities result to the view so that i can display the results. My query is actually in the controller function ot the view, i would now loop the results and display them in the page. How?
View 23 RepliesADO.NET :: Setup Query Result Shaping For LinQ To SQL Instead Of Entity Framework?
Sep 9, 2010I am new to this, and I am trying to implement a linq query similar to db.Genres.Include("Albums") command from
mvc music store using my current DB setup. I realize that the tutorial mentions Checlking the "Include foreign key columns in the method" when creating the tables in ADO.NET, but if I am using LINQ to SQL classes, then how can I obtain the same effect. And how do I use
db.Genres.Include("Albums") to simplify my life?
DataSource Controls :: Check Query Return Value Or Not In LINQ
Jun 2, 2010i have a Linq query that check something in database
after that i want to check if record find in database or not
dim re = From r in db.mytable _
where r.ID = _ID
Select r
how can i check the re return somthing or empty
ADO.NET :: How To Write SQL Insert Into Query Using LINQ
Oct 13, 2010How I can write following SQL query using LINQ. There is no default constraint define for the ID column so we have explicitly pass the NEWID().
I want to replicate the products of a company to another company.
Insert Into Products Select NEWID() AS ProductID, ProductName, CompanyID = @DestinationID, ProductCategoryID From Products Where CompanyID = @SourceID
Also once I get these result how can I use InsertAllOnSubmit to insert all the records at once without looping it.
Insert An Empty Record Using LINQ Query?
Apr 10, 2010I have a LINQ query like this:
var query1 = from x in db.FaqCategories select new { x.CategoryId, x.Category };
What I would like to get is a query with an empty record
var empty = new {CategoryId="", Category=""};
on the very top of query1. I think this can be accomplished by using the union operator, just don't know how.
DataSource Controls :: Using IF Statements In LINQ Insert Query?
Jun 7, 2010I tried to find a LINQ section on this forum, but couldn't, so I'll post this here since is deals with LINQ, C#, MVC, SQL Server, and well...just about everything.
Here's the details....My Application is an ASP .Net MVC 1.0 app, using C# 3.5, SQL Server 2005 Std, and LINQ to Entity.
In my View, I have numerous Html.CheckBox controls, they get passed to my Controller as a string collection via a JQuery Ajax call. The values of each checkbox are seperated by a comma(,). I then Split the string, to get the individual values. The overall purpose to to allow users to build a custom report with only the data elements they have checked the boxes for. Here is my controller:
[Code]....
The part that I am having a problem with is that I only want to Insert the data elements into my DB table for the ones that the user has selected the checkbox for. So, for example, I'd like to do something like this:
[Code]....
I don't know if there is a LINQ switch statement in which I can access outside variables and the columns of the table, or any thing like that.
DataSource Controls :: Using LINQ To Pull Out A Single Value From A Single Result Row Of A Join Query?
May 25, 2010For context: First of all, I am new to LINQ, as I have been using SubSonic for quite some time now.
I have two tables, Users, and Affiliates. They both have a very typical schema. The FK that joins them is the UserId field, which is in the Affiliates table. I want to create a LINQ query that pulls the Username from the Users table using the AffiliateId value. The AffiliateId is a primary key of the Affiliates table.
I have tried to accomplish this using many variations of the following code:
[Code]....
In the above query, I expect to get a single row result set. However, I instead receive the entire table of results.
How can I make this work? I have yet to see an example or article out there to do what I am trying to do.
Linq Update Query Generates Where 0 = 1?
Feb 16, 2010I am setting the Address of a class generated by Linq 2 Sql and when I try to SubmitChanges(), the sql query it generates is:
Update Users
Set Address = @po
Where 0 = 1
--@po: Input VarChar (Size = 15; Prec = 0; Scale = 0) [123 45th Street]
ADO.NET :: Linq Insert/update Exception?
Mar 11, 2011I am using Linq-To-Sql to add people to a one-to-one table. Sometimes I get a error "Violation of PRIMARY KEY constraint" when the person is already added. Can anyone give me instruction on how to handel the exception.
[Code]....
Query DB And Update Check Box List On JS/jQuery Function?
Sep 7, 2010I've come to a roadblock in my app and I'm not sure which way I should go. Currently, I have a slider control and two text boxes used to set the Start and End times of a section of a video. Let's say the video is of some Music Awards. In my database, I've tagged the start and end time of each celebrities on-screen appearance. When the user adjusts their start and end times on the page, I want to query the database table and pull back all celebrities within that range. The problem is I don't know how to do this in JS.
Can I use the Check Box List and bind the values to it? Do I need to render a table of Check Boxes in JavaScript? Do I call the Server-Side code via Ajax and then partially render the page?
DataSource Controls :: Check SqlDataSource Deleted Event If Success?
Jan 6, 2011I have problem to check "if the file is success deleted".This is the algorithm, if sqldatasource deleted success then ---show message or other action---end if
View 5 RepliesC# - Sandbox PayPal Not Returning Success In Query String
Mar 12, 2010I have integrated sandbox paypal into my application.After successful payment i am not getting success in the query string.Instead i get is return to merchant but if i do cancel i get the cancel in the query string
View 1 RepliesDataSource Controls :: Update Query Via LINQ Not Working As Expected?
Jan 6, 2010I have a form that gets populated by LINQ and I want to be able to update the database using that same form. The form is populated by grabbing a querystring (for example, "edit=10") and searching the primary key for that record. So far so good. I have a button attached to the function below which is supposed to use LINQ to update the database with data from the form. I get no errors, but for some reason, it is only updating one field (Last_Updated) instead of all of them.
[Code]....
C# - Linq To Sql Dynamic Data Modify Object Before Insert And Update?
Jun 18, 2010I'm using Dynamic Data and LINQ to SQL for some admin pages on a .NET 3.5 web app. All my admin tables have a CreatedBy, CreatedDate, UpdatedBy, and UpdatedDate.I'm looking for a way to inject the setting of these properties before the objects are inserted and updated.
I've seen an object_inserting hook if you have a linq to sql datasource in the web form, but I'm using dynamic data...is there an easy way to generically set that? And I've also looked at modifying each of the partial classes for my admin objects, but the closest hook I see is to implement the OnValidate method with the Insert action.
DataSource Controls :: Update Table Field With LINQ To SQL And Query String
Jul 11, 2010I am trying to update my table ARTICLES and it has a field COUNTER, Everytime a user enter this ARTICLES, the page_load event runs a LINQ to SQL query taking the QueryString as parameter, increasing the COUNTER field in 1.
[Code]....
Data Controls :: Check Duplicate Data And Remove It Using LINQ Query In C#
Dec 13, 2013I have database as
ID name desc rupees
1 Test1 abc 1000
2 Test2 dcf 1000
3 Test3 edf 1000
1 Test1 dcd 1000
2 Test2 dcf 1000
Now I want a linq query to check for the duplicate name and if present adding its rupees...
E.g.: Result will be
name rupees
Test1 2000
Test2 2000
Test3 1000