MVC :: Model Like TeachersSubjects To Define Relation?
Jul 4, 2010
I am asp.net newbie,I used to write in Python and Django.I have very small app with two models:
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and in database I have also created TeachersSubjects table with 2 fields as foreign keys (TeacherID, SubjectID).So my question is: what should I do now? Should I define another model like TeachersSubjects, or are there any other ways to define this relation?(I prefer to stay with handwriting classes, rether than Visual Studio magic.
when i create my entity data model i have a situation in the DB like this :
TableFirst : [Id,IdTableSecond,IdTableSecondAgain];TableSecond[Id] Created data model is: TableFirst.TableSecond and TableFirst.TableSecond1 Question is: Every time when i create my entity TableFirst.TableSecond will have same relation in behind (IdTableSecond) and TableFirst.TableSecond1 (IdTableSecondAgain) or they may change?
How to create/define new roles ASP.NET MCV model?. I am using a sql server database and vb.net. I want to store the roles in database.There is already a table named asp_roles but not sure how to define a new role ans assign is to a user.
I'm trying to add a product to one or more categories, but I'm going nowhere slow.
Table layout:
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I been trying everything to add a product to a category, but without luck. I would have though this was the "right" way:
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On my "Create" product page, the product is created but I just can't find a way to link a product to one or more categories. It just skips back to the Create page, even though I have put a Redirect in the Controller.
Then I tried to retrieve node type from Node this way - Nodes node = Entities.Nodes.First(); string nodetype = node.NodeTypes.Name; but for some reason node.NodeTypes equalls null despite fact that there is some records in NodeTypes table.
I see that there is no Check-Ins on ASP.NET MVC Storefront code since Feb 7th. And on this question, Orchard project link is given with the answer. Is there any relation between these two projects?
I have 2 table in my db kategori(category) and alt_kategori(subcategory). it have a relation kategori to altkategori.I can add kategori but i cant add altkategori i take this error participate in the 'KategoriAlt_Kategori' relationship. 0 related 'Kategori' were found. 1 'Kategori' is expected.
i am working on a social networking project using MVC2 visual studio, currently i am working on these two tables , post & comment. Each post can have many comments.i have created a post controller along with the related view , and it work well , now i want to add under the post a comment view, where a post can have many comments , i can add the comments on different view , but i need to have a post and under it to add many comments, so how i can do so?
another problem is that in the post table there is a field representing a rating, now i can add in the rating field 1, 2,3,4,5,etc, but i need this field to be viewed as a list having values from 1-5?
I have a MVC project wich uses LINQ to SQL as a data layer.
For example, I have a tables ProductGroups and Products. Product is a child of ProductGroup, so to get name of ProductGroup, in aspx-page I use constuction like Model.ProductGroup.Name.
But when I delete a ProductGroup there is appear a NullReference Exception in presentation page.
While I was using just DataSet and manual SQL-queries, the rows, there was not every joined-element present, simple were not put in query result.
I know that before delete Parent row I have to delete all children rows, it's correct way.
1. Is there a way to ignore rows which has null-elements without manual checking through "IF"?
2. Is there simple way to delete all dependencies without manual enumerating every related tables?
I have an application which has rows of data in a relation database the table needs a status which will always be either Not Submitted, Awaiting Approval, Approved, Rejected Now since these will never change I was trying to decide the best way to implement them I can either think of a Status enum with the values and an int assigned where the int is placed into the status column on the table row.
Or a status table that linked to the table and the user select one of these as the current status.
I can't decide which is the better option as I currently have a enum in place with these values for the approval pages to populate the dropdown etc and setup the sql (as it currently using to Approved and submitted for approval but this is dirty for various reasons and needs changed).
Wondering what your thought on this were and whether I should go for one or the other.
If it makes any difference I am using Entity framework.
I have 3 tables: People, Fruits and a table named People_Fruit which connects People to Fruit tables. in table People_Fruit we enter records which determine who loves which fruit. People_Fruit is at "Many" side of both People and Fruits table. at this link you see this in a WinForms project: [URL]
I want to show people in a ASP grid. when the user click on a person's record he sees all record of fruits table regardless of whether the person loves it or not. there is a CheckBox column which its value determines if the person loves the fruit or not. user can check or uncheck the checkbox. If user checks the checlbox PersonId and FruitID must be entered to the People_Fruit table and if the user uncheck the checkbox the correspond record must be deleted.
I'm building an MVC 2 RTM app, and I want to be able to share my model across applications. I'd *like* to be able to implement it like:ASP.NET MVC2 app (holds Views and Controllers)Class library to hold Model(s)WCF app to handle the data transactions with the models via different data stores across apps I had the MVC app working fine, but I wanted to abstract the data stuff and be able to work with the model across apps through the WCF site, so I created a class library project and moved all of the Models classes into that and set-up a WCF app, then added project references to the MVC and WCF apps that point at the class library. The idea was I can create services that take and return objects from the model via method calls across apps. It appears that everything's wired up correctly in the MVC project, so I'm passing the objects stored in the Models class library between controllers and views and everythig is compiling just fine, but for some reason the data is not being passed back from the views to the controller on POST -- all of the properties in the classes are null or empty.
When I debug the app, I can see that the values are stored in the model data dictionary but not the model object itself. What am I doing wrong? Am I on the wrong path, or missing something obvious (to some)?
Although there are a number of floating menu tuts out there, I can't seem to find one that will simply let a div tag stay in one position with relation to the screen size. I have a div tag in the middle right of my page that must basically stay there even if the user scroll down.
How I will create the scheduling system. I have 3 tables related namely employees, schedule and shift. How will I show the data using the relation shift of the table on gridview by this: It will be filtered by datefrom and dateto: Select via calendar ex Datefrom: August 1 Dateto: August15
Then It will show: EmployeeID Name 1 2 3 4 5 and up to 15
EP9112 Lastname, firstname, Middlename shift shift shift shift shift with edit when I press EmployeeID their shift. How can I also format the shift and date by: ex TimeIn: 7:00:00 AM TimeOut: 3:00:00 PM Date: 8/1/2010 When I add it, it will be TimeIn: 8/1/2010 7:00:00AM TimeOut: 8/1/2010 3:00:00 PM. Do I need to edit my database.
