Data Controls :: How To Get ID Of Record After Insert In Entity Framework
May 7, 2015I want to add recored and immediately after add get id value of that record.
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DataSource Controls :: How To Insert A Null Into A Record Entity Framework
Feb 24, 2010I'm using the linq to entity command to perform a record update. I want to set one of the fields back to NULL but I'm not sure how do it. I have a query such as
Dim record = From r in db.LISTS where r.ID = refID Select r
record.Title = txtTitle.text
if txtDetail.text = "" then
record.Detail =
end if
Insert Record Into Mysql Db With Entity Framework
Apr 19, 2010the problem is that it will insert a new record in a mysql table, I have already done the mapping of the mysql db and I have already done tests returning data and everything works. Now I read from a file, where there are queries written, I have them run me back and the result of true or false based on the final outcome of single query written to the file. Txt; I did this:
using (var w = new demotestEntities ())
(
foreach (var l listaqueri)
(
var p = we.CreateQuery <category> (l);
we.SaveChanges ();
result = true;
)
)
but it does not work, I sense that it returns no errors, but neither the result given written in the query. txt file is as follows: INSERT INTO category (id, name) VALUES (null, 'test2')
DataSource Controls :: Unable To Select And Insert Data In Mapping Table Using Entity Framework
Jan 18, 2010I 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?
View 2 RepliesData Controls :: Insert GridView Data To Database Using Entity Framework
Aug 18, 2015I am working with entity frame work to insert data into data base for that I write a web method and query function but data can’t insert data base following my function and web method.
/////////////////////////
function AddGridviewData() {
var AddRow = new Array();
$('[id*=Test_gridview]').find('tr:has(td)').each(function () {
var NewRow = {};
NewRow. name = $(this).find("td:eq(1)").html();
[Code] ...
There are no error and no insert the data into data base.
Cast Exception When Try To Insert Entity In Entity Framework (using Code-f)
Feb 9, 2011I get an cast exception when i am trying to insert an entity in Entity Framework (using code-first). From this code :
public virtual T Insert(T entity)
{
return Context.Set<T>().Add(entity);
}
The cast exception is like "impossible to cast ...Collection'1(Entity) to type (Entity)" I can't figure out why. I am pretty sure ive done everything right. Post entity
public class Post
{
public long PostId { get; private set; }
public DateTime date { get; set; }
[Required]
public string Subject { get; set; }
public User User { get; set; }
public Category Category { get; set; }
[Required]
public string Body { get; set; }
public virtual ICollection<Tag> Tags { get; private set; }
public Post()
{
Category = new Category();
if (Tags == null)
Tags = new Collection<Tag>();
}................................
ADO.NET :: Insert Update And Delete Records Using Entity Framework Data Model?
Nov 22, 2010How can i insert,update and delete records using entity framework data model.
View 1 RepliesEntity Framework - One To One Relationship - Save Record?
Mar 16, 2010I have a one-to-one relationship on two tables with are represented by 2 classes in my EDM. I am trying to save a new record and am confused how to save to the second entity. I have tried the following.
Dim myObject as new MyObject
myObject.prop1 = 5
myObject.prop2 = "Test"
myObject.myOtherObject.prop1 = 3
myObject.myOtherObject.prop2 = "Hello"
But I get an error when I hit myObject.myOtherObject.prop1 = 3 because myOtherObject hasn't been initialized. How do I initialize an child object under myObject?
ADO.NET :: Update A Record For Multi-user App Using Entity Framework .net 3.5?
Mar 23, 2011I have a webservice which of course has to be .net 3.5 (a side note is does anyone know why you can't create a webservice using .net 4.0?).
Anyhow it is using entity framework, which I have recently discovered was a really bad mistake to try to use this in .net 3.5.
I have a table "Licenses" with the following columns: LicenseKey, ProductCode, OrderID, Seq, UserName.
In my asp.net 4.0 application I can simply do the following to perform an update:
[Code]....
But it appears there is no ExecuteStoreCommand in .net 3.5 with entity framework. Can anyone explain to me how to accomplish the same thing? The thing I need to point out is that because this is a multi-user access service. I need to verify that SQL will only update the given record where OrderID and Seq is what I tell it ONLY if the UserName is already null. So if two users process the same statement at the same time only one would work and the other would not because the sql should fail (or return 0, rather than a 1) for the second one.
How To Insert, Many-To-Many, Entity Framework
Mar 18, 2011I have 3 tables in the database, with a Many to Many relationship:
Assessment(assessID, userID, A, B, C)Grade(gradeID, scoreA, scoreB, scoreC)AssessmentGrade(assessID, gradeID) [PK and FK]I can already Insert into the Assessment AND Grade tables without any problems.I cannot seem to figure out how to Insert into the AssessmentGrade table. There is no separate Entity, because there is only the PK/FK in the AssessmentGrade. I have looked at some tutorials, but none of them seem to address my situation.
Error While Updating Database Record With Entity Framework On MVC Page?
Mar 12, 2010I have an ASP.NET Page that updates registered User Address Details for a selected record.
Below is the Update method that i am calling from Controller.
When i am calling ApplyPropertyChanges method, I am getting the below error.
Did anyone run into the same error while updating the record with Entity Framework.
[code]...
Exporting Entity Framework 4 Data Model To Entity Framework 3.5?
Oct 25, 2010Is there a way to export a EF 4.0 Data Model to EF 3.5?
I looked around and found that we are not able to access EF 4.0 from a ASP.Net 3.5 project here: [URL]
Our project is the 1st to go to .Net 4.0 using Entity Framework and we (the team) were wondering if there was a way for the other projects that "might" need to access our data that are still using the .Net 3.5 framework.
ADO.NET :: How To Insert Foreign Key In Entity Framework In MVC
Oct 18, 2010I m try to insert record to table, its working well without foreignkey using Entity model. But i need to insert foreign key. I used the following query, its not working well via Entity model.
objFacility.FacilityCategoryReference.EntityKey =
new System.Data.EntityKey("testEntities.test",
"id", 10);
Can Entity Framework Insert Into Lookup Table
Dec 20, 2010I ahve two tables each with a primary key. There is a lookup table in between the two tables with relationships. Below is a simplified look at the table structure
Table 'Product'
Column ProductPK int (Primary Key)
Table 'County'
Column CountyID int (primary key)
Table Product_County_Lookup
Column ProductPK int (Joint Primary Key)
Column CountyID int (joint primary key)
I already have the ProductPK and CountyID. What is the correct LINQ statement to insert into Product_County_Lookup table ONLY?
Can Insert Muiple Rows Into Table Using Entity Framework
Oct 6, 2010i'm trying to use Entity Framework to insert into SQL SERVER 2005, using Visual studio 2008.the following codes are a Button onclick event,I want to insert into DB multiple rows at a time
[Code]....
however this does not work, it seems we can only insert into DB only one row at a time
Use FormView In Order To Insert Complex Entity Framework Objects?
Jun 11, 2010I'm trying to use formview in order to do insert of a new entity object (called Customer) Customer has a reference to another entity called Address. How can I fill both of them in the same formview?
View 1 RepliesHow To Insert Multiple Rows Using Entity Framework In Studio 2008
Oct 7, 2010i'm trying to use Entity Framework to insert into SQL SERVER 2005, using Visual studio 2008.the following codes are a Button onclick event,I want to insert into DB multiple rows at a time
[Code]....
however this does not work, it seems we can only insert into DB only one row at a time
ADO.NET :: How To Use Stored Procedure For Insert,update,delete,select In Entity Framework 4 With MVC2
Dec 10, 2010i want to know how to call stored procedure in entity framework. how to do code with controller class and with model.
i mean if i want to call insert,update,select,delete stored procedure for entity framework then what are stps i have to follow.
Forms Data Controls :: FormView Must Be In The Insert Mode To Insert A Record?
Jan 21, 2011I use GridView & FormView to update a record. but when I click the "save" button, throw an except : FormView must be in the insert mode to insert a record. The record has been updated success, and I didn't change the mode of the FormView, how this error comes?
View 3 RepliesADO.NET :: Adding A New Entity In Entity Framework 3.5 With Related Data?
Aug 5, 2010I am trying to add a new entity and have to refernce associated data to add it. I cannot load the Referencetables. Giving "The EntityReference could not be loaded because it is not attached to an ObjectContext." How do i complete this task in Entity Framework 3.5
[Code]....
Forms Data Controls :: Bind Entity Framework To GridView?
Jun 13, 2010I am trying to bind a Entity datasoruce in the code behind file with the following:
MembershipUser myUser = Membership.GetUser();
Guid userIdPosts = (Guid)myUser.ProviderUserKey;
//MessageBoardEntities3 is ThemeableAttribute connection string name
[code]...
Forms Data Controls :: Entity Framework Using 2 Tables Databind() To A Gridview?
Jun 16, 2010I am new to Entity Framework and working my way through it little by little. I think I have it figured out on how to get data into and out of 1 table at a time now the challenge is 2 tables into a gridview.
I have a user table that has a list of threads that a user can mark to track. Easy enough. Assign the userid number & threadid to a table with a push button while the user is logged in and viewing any of the posts that are on that thread. The new challange is to get only the posts that the user has marked to track. SQL easy. Entity not sure what to do.
If I make a view or stored procedure and add it to the database that would be an extra step. To join the 2 tables as in sql Select posts from posts where track.userid = @userid join track on post.userid=track.userid Seems Entity was made to avoid this type of thing. Than once the data is gathered I need to bind it to a gridview()
Forms Data Controls :: How To Add Gridview Rows Data To Database Using Entity Framework
Aug 3, 2010I've a gridview with 6 coloums. First col is dropdown list and rest are text boxes.aspx page looks like this
[Code]....
I've a created a class and bounded to grid view in my Business LayerThe dropdown list was bounded to another table by using gvExpense_RowDataBound eventNo.of rows in gridview depends on no. of rows in expensetype table
Forms Data Controls :: Detailsview Entity Framework Cannot Update Existing Data?
Mar 30, 2011I use a Detailsview, Entity Data Source to edit/update my table with only 3 columns.(it has primary keys).
Everything works fine inserts/edit in dev environment. but when i run this in release mode. i cannot update existing data in the database with the detailsview. whenever i update and save page gets refreshed, but nothing gets updated. but whenever i insert a new record, and then i try editing it. it works.?
Note: i handle DetailsviewItemUpdating,DetailsviewItemInserting events to do some custom checks.
Forms Data Controls :: How To Display Related Foreign Key Value In Gridview With Entity Framework
Oct 12, 2010I have a gridview displaying "registrationtype id" (FK) from the registration table. I want it to display the related name instead of the id from the registartiontype table.
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