I have a table with composite primary key and this key includes two values referring to two other tables. Now I need to implement Edit feature for this Original Table but I wanted to have dropdown lists while editing pointing to look up tables(composite key values are primary keys for two lookup tables). for eg.
i have following entities as you see BudgetPost has a composite primary key which is a foreign keys to entities Category and Budget. My question is what is the best way to make CRUD? Is there any way to mapp the foreign keys? The simple insert should look like this:
I am asp.net newbie,I used to write in Python and Django.I have very small app with two models: [Code]....
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.
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 get the following exception (missing primary key) in the line of using Find() method "Table doesn't have a primary key." I've rechecked the Database and all Primary Key columns are set correctly.
DataTable dt = p.GetAllPhotos(int.Parse(Id)); DataTable temp = new DataTable(); temp = dt.Clone(); temp = (DataTable)(Session["currentImage"]); DataTable dtvalid = new DataTable(); dtvalid = dt.Clone(); DataRow[] drr = new DataRow[1]; drr[0] = dt.Rows.Find((int.Parse(temp.Rows[0]["photoId"].ToString()))+1); foreach (DataRow dr in drr) { dtvalid.ImportRow(dr); } dtvalid.AcceptChanges();'
In the database one number like a 91-9685748596 and, 2nd number like 9122-9685748596 and another one is 9685748596 .when we are try to formate it using substring function it all are may be9685748596,9685748596,9685748596.Mobile number is assigned as a primary key.so its showing error "Primary key violation".We can not the remove primary key also and there are 50 lack data in our database.
when i bind first time page (10) records then primary properly bind with records and when my next 10 records load using lazy loading then the primary key not change it shows 1st records primary key
check the below code in which i am assigning assetid (primary key) but its not assigning properly...
function OnSuccess(response) { //alert('testing'); var xmlDoc = $.parseXML(response.d); var xml = $(xmlDoc); pageCount = parseInt(xml.find("PageCount").eq(0).find("PageCount").text()); var customers = xml.find("AssetSummary");
Code: public class GroupInfo { private List<Structure> _sectors = new List<Structure>(); [XmlElement("Sector")] public List<Structure> Sectors { get; set; } [XmlElement("Person")] public List<Users> Person { get; set; } [code]...
In the Page_Load() event handler for one of my pages I use the new statement about 100 times equating to memory allocation for about 100 objects. As follows:
using System.Web.UI.WebControls; Table mytable1 = new Table(); TableRow [] myrows = new TableRow[5]; TableCell [] mycells = new TableCell[100]; int i; for(i=0; i<5; i++) myrows[i] = new TableRow(); for(i=0; i<100; i++) mycells[i] = new TableCell();
My question is, should all of these new statements be enclosed like so:
if(IsPostBack==false) { // Initialize all controls for page just once during the session }
Or should the Controls be freshly allocated, initialized, and added to the page each time the Page_Load event handler is called? I personally don't think its efficient to create mytable from scratch every Page_Load since all I really ever change is the contents of the table and not the table itself.
I'm a complete newbie to MVC. I just started playing with it and to my surprise IntelliSense still offered my the familiar server controls e.g. GridView, Button, etc. I thought the idea w/ MVC was to have much tighter control on HTML rendered. Also, the Button server control still shows me OnClick. I thought MVC was not events driven.
I know almost nothing about coding in .NET and XML and web services.I need to call a web service and pass it a structured XML statement and catch the return from the web service.I have no idea where to start except I think I am suppose to create a new 2008 VB.NET ASP Web Service App. After that I have no clue. Here is a copy of the bindingattribute I think I need but do not know how to use it: (I think it is correct)
I also have the xml statement I want to test with. I need to send it and recieve the response. I am pretty sure the web service is using SOAP and I know the XML will have to be wrapped in a SOAp wrapper but I have been told .NET will do that for me.
I'm all set up with Visual Developer 2010 Express and successfully (yaaah) worked my way through the NerdDinner tutorial (thank you, thank you, thank you!). So, I think I have everything set up correctly so far. I used the "Install Everything" without the prebuilt apps and all went smoothly.
However, my goal is to set up CMS for a small company owned by a relative so they can update their website as necessary. I'd love to do this with MVC.
I have tried to install both N2 CMS and Umbraco, but can't get past the admin and user names and passwords for the database. Since I'm failing with both apps, I think it's something about setting up the database server that I need to understand.Win 7 Home Premium 64, home system, not on a network. what I need to enter for admin / admin passwords and user / user passworks for N2 CMS and Umbraco?
I'm trying to learn MVC and I'm playing around with the MvcMusicStore tutorial.I'm trying to modify the StoreController to change some of the behaviours.I'd like to change the route behaviour from:
I have controller method that looks something like this:
[Code]....
notice the commented out line. This method used to return an IEnumerable<Sport> but now that I have used a LINQ query it is returning an IEnumerable of an anonymous type (I think that's the correct terminology - please correct me if I'm wrong).
Question I have is...can I add a strongly-typed view based on this anonymous type and if not, how do I write a view that can access this collection?
As an ASP.NET newbie I'm trying to get an initial project going without laying out huge sums for advanced visual components. recommend any good open source control libraries for ASP.NET? Something that includes a table, tree, calendar, and the usual mix of input/display controls.
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)?
I made a few changes to the DB in SQL server management studio then right clicked on the .edmx doc to get it to update. That seemed to work fine but when i compiled the app everything that referenced the EF seems to be broken.The Error list now contains the below error for all classes that used it.
The type or namespace name '' could not be found (are you missing a using directive or an assembly reference?)
I have an issue of static variable in an asp.net application. Let's say I have a server with 8 CPUs running windows 2008 R2 hosting an asp.net webbsite, nothing fancy here, no funny configuration.
Is the following statement true? at any single time, there's one and only one process is running and accepting requests, even in the recycling stage. The reason I am asking is: I have a static field in my class, and I want to make that's the only static instance in the website. I've heard in some circumstances, IIS is recylcing your application, and it will start a new process, but the old process is still working, thus I will have 2 static instances in memory, which defeat the purpose of static field.
One step further, let's assume there might be 2 instances in memory, can I assume there are at most 2 instances at any single time? And can I assume once the second instance is up, the first instance will NEVER accept new requests?
Another question: Recently I have a problem with an applicationdomain concept. Looks like if an application domain causes a memory leak, unload the domain will not release the memory (Umanaged leak). So to what extent Application Domain is isolated?
I am trying to make a post that should use the Default Model Binder functionality in ASP.NET MVC 2 but unfortunately I can't get through. When I click on the checkout button I populate a form dinamically using jQuery code and then submit this form to the server. This is the form that get submitted
This is the jQuery code that handle the submit event for the form $("#cartForm").submit(function (event) { event.preventDefault(); var form = $("#cartForm"); var panel = form.parent(); panel.parent().block(); $.ajax({ type: "post", dataType: "html", url: '<%: Url.Content("~/Order/Checkout") %>', async: false, data: form.serialize(), success: function (response, status, xml) { panel.parent().unblock(); }, error: function (response) { panel.parent().unblock(); } }); });
This is the controller action that should be get called [HttpPost] [ValidateAntiForgeryToken] public virtual ActionResult Checkout( CartModel cart ) { } And finally this is the CartModel class involved public class CartModel : BaseModel{ public int CustomerID { get; set; } public int FirmID { get; set; } public List<CartItemModel> CartItems { get; set; } public CartModel() { CartItems = new List<CartItemModel>(); } } public class CartItemModel : BaseModel { public int ServiceTypeID { get; set; } public int Quantity { get; set; } }
But the default Model Binder does not bind the web form data to a CartModel class. Using Fiddler I have been able to see that the data sent to the server is correct as you can see from the following snapshot.
