I have a cshtml view to perform crud operations on a client record. In the same view i want a data table to perform crud operations on children of each client , so one client can have multiple children. I want to add edit those child records however only when the entire client record is saved then the child record should be updated or created , deleted etc. Can i know if jquery datatable is the best for this , and how will i save child in memory and perform save all at once...thanks
Used javascript arrays, and hidden variables to make sure that added/edited data is not lost when posted back to controller .
You can load load the datatable child using Ajax (on click event of the client table). Then read all rows from the datatable child to get the data that you need.
Related
I want to change a single data from the table index which is stored in the database and not touching any data in the database. I just want the function in the button with a single click, without going through a Edit view in CRUD operation.
this is the data i want to change, thanks for any help.
What I hope is a basic question,
I am designing an MVC project with the entity framework and code first and in it has a number of normalized tables that later will make up a combined view.
For example say I have a table called JOBS. This table has foreign keys for a CUSTOMER table, a STATUS table, a JOBSTYPE table.
If I want a view (a page) that displays the job with the customer, its status and its jobtype how do I manage this outcome?
In other words if I want a page that shows the job, the customer and the jobs address (sourced from the address table - itself linked via a foreign key in the customer table) how do I do the view for this?
Further, with a focus on CRUD, If I want an update page how do I display a page that has text boxes to update things like the job's address or the status which are in different tables to the actual job table.... and to press a button on the page saying "update" and each table updating automatically..
Look forward to any help clearing the confusion...
Kind Regards
Simon
Just as the question, this answer is hypothetical as well. What you can do is have a look at your page design and figure out the columns/properties you want to show from multiple tables, you then create a ViewModel for this page, then you can write a LINQ projection query to bring the results as your viewmodel.
Another other option will be to use lazy loading all linked tables and render related entities, but this this approach you have to make sure that the EF context is not disposed till the whole view has rendered.
The ViewModel and Projection approach also works well with updates and your update action will take in your view model and translate back to EF entities for updating.
For translations from ViewModel to EF Model entities and vice versa you can use automapper
I have one form in AX 2012 from which i am calling another child form which shows records that are related to the selected record in Parent form(Dynamic linking).
Now, when I am trying to create a new record in a child form, the dynamic linking between this form and its parent form gets cleared and child form starts showing all data according to its datasource and not any filtered records which I don't want.
I want to know that, how to get stick with that dynamic linking while creating new Record in a child form.
Check that your grids really belongs to the correct datasources. If not, strange things happen.
First, I apologize if this is a dumb question, but I'm new to MVC and am trying to get up to speed as quickly as possible. I have spent hours searching for answers and even went and bought a book on MVC 4, but it still didn't answer my question.
I have a form I'd like a user to fill out to add a new product to the catalog. They choose the category, enter the name, a description, etc.. On the same page I'd like them to be able to add sizes or product options such as Small, Medium, Large, etc.. The problem is I'm not sure how to go about this.
I need to temporarily store the size options for example in some sort of collection until the user actually 'saves' the product, then I need to be able to read the collection. What I'm trying to avoid is to have the user add the basic product info, then save it, then select it, then choose to add options to it. I'm trying to just do it all on one form. Any help would be greatly appreciated!
There is nothing preventing you creating a view model with its own collections for the detail items and have those mapped to some sort of javascript control for selecting multiple items such as one that writes to an mvc hidden form control.
The controller handling the postback will simply create the master model from the postback data (the updated view model) and then create the child records. The whole thing could be achieved with ajax calling a controller action that returns a partial view of the updated ui.
Similar to this but have the list as a property of the master model
http://www.stevefenton.co.uk/Content/Blog/Date/201002/Blog/How-To-Handle-Multiple-Select-Lists-In-ASP-NET-MVC/
A little more advanced on how to manage your own bindings http://www.dotnetcurry.com/ShowArticle.aspx?ID=584
Sounds like u need to roll your sleeves up and get a control written in javascript that allows child items to be added client side whist serializing e.g. Into json when they save and saving it to an mvc hidden control ready for postback. Use json.net to hydrate these values into your pocos. http://erraticdev.blogspot.co.uk/2010/12/sending-complex-json-objects-to-aspnet.html
I'm coming from the delphi world and I want to make a master/detail interface, like Order and Products.
I already made actions to display the data using fields and a jqGrid. What I want know is how make possible to add lines, edit or remove them, but, just make the changes in db when the user confirm the changes in the master.
On delphi I would use a TClientDataSet with all the in memory changes and just after the confirmation would execute them inside a transaction like:
BEGIN
Master.Post
FOREACH Line IN Lines Line.Post
COMMIT
So in resume, I don't know how keep in memory the array of lines in the grid and how send them back to server to commit.
Any help will be appreciated. Thanks in Advance.
You'll need to keep track of the changes client side, perhaps using some hidden fields and/or form fields in your grid. When a line is deleted (that previously existed in the db), you'll need to add it's id to a field containing lines to delete. Lines that are added need to have associated form fields containing their data. When the master is committed you roll the whole set of fields up into a POST and send that back to the server.
Using LINQ to SQL, you'd create a data context, get the master object, then delete the related objects (from the hidden field of ids) that are so marked and create/add new related objects that didn't exist before taking the values from the appropriate form fields. Then you'd do a SubmitChanges and all of the statements would be executed within a single transaction.