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Something is wrong with your question!
There is no error message and the code you posted has nothing to do with JavaScript...
Please fix it...
I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)
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when click update button , i receive (microsoft jscript runtime error out of memory) message
without updating data
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Your issue is most likely in context.cap_ChangeCoupons2(). Without that code there's not much that can be said about it.
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I am working on a WPF 4.0 app that calls to the back end via an MVC 4 Web API.
I have a view called Injuries. I have an InjuryEntity which contains an ObservableCollection of DocumentEntity.
I'm using an ObservableCollection because the WPF UI is bound as such:
<DataGrid Grid.Row="1"
Grid.Column="0"
Background="White"
ItemsSource="{Binding SelectedInjury.Documents}"
SelectedItem="{Binding SelectedDocument}"
AutoGenerateColumns="False"
FontSize="12"
FontWeight="Normal"
FontStyle="Normal"
IsReadOnly="True"
TabIndex="1200"
Height="130"
Margin="3">
When I call
InjuryEntity.Documents.Add()
everything works fine. I am able to save the data to the DB with no problem.
Now, when I call back into the API to get the Injuries, I get back null. The ENTIRE Injury entity is null, not just the documents.
If I make the ObservableCollection into List<>, then the data comes back fine.
I'm using ObservableCollection because in injury entity's Documents collection makes use of the Collection_Changed event so that I can do:
Documents = new List<InjuryDocumentsEntity>();
Documents.CollectionChanged += Documents_CollectionChanged;
private void Documents_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
RaisePropertyChanged("Documents");
}
This allows the data grid and other UI elements the be refreshed as soon as a collection item changes.
So, the problem appears to be that MVC 4 doesn't like ObservableCollection.
I've been Googling, but I'm not finding much help.
Can anyone shed some light on this?
Thanks
If it's not broken, fix it until it is
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Have you debug you API method? It may have some logical problems that prevent it to return anything?
I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)
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I think your issue might be that you're trying to use a stateful collection in a stateless context. You can use it for event handling on your UX, but it should be immaterial on the WebAPI. Have you tried setting your expected parameter as Collection<t> or ICollection?
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HOW TO WRITE CODE FOR SELECT MULTIPLE PRODUCTS AT A TIME IN E-COMMERCE WEB APPLICATION BY USING CHECK BOX OR RADIO BUTTONS.
10570172
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how can I declare Public Enum with strings?
Public Class ImplementationHelper
Public Enum ExcelSheetName
"High Level Benefits"
"Benefits"
End Enum
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You can't. What exactly are you trying to do? Perhaps use Strings in a static class instead.
If these are Excel sheet names you can always do ExcelSheetName.Benefits.ToString() to get the actual string value.
There are only 10 types of people in the world, those who understand binary and those who don't.
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I am trying to declare string which I can use in the project
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You can use CONST
There are only 10 types of people in the world, those who understand binary and those who don't.
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well I kind of want to separate... any other suggestion's?
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A class with CONSTS. A resources file. Are you going to be doing tons of them?
There are only 10 types of people in the world, those who understand binary and those who don't.
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They use classes instead of enums.
There are only 10 types of people in the world, those who understand binary and those who don't.
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Hi ,
How to implement Facebook like notification in website using asp.net FrameWork 2.0
SignalR can not be used because my website built in 2.0
I want to show only Update Notification Count.
my plan is to use JavaScript setTimeout() function in which I will call ajax .
but I am worried about is Load on Browser and DB server.
please suggest me best solution for this scenario
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jeevanjoshi wrote: please suggest me best solution for this scenario Of course there is no such things as a "best" solution. However, if you are unable to use existing libraries, such as SignalR, then you need to use the manual approach which means doing it in JavaScript as you mentioned.
If you can do jQuery that should help you a lot.
There are only 10 types of people in the world, those who understand binary and those who don't.
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Hi RyanDev
Thanks for your reply.
I am only worried about load on browser and DB
modified 17-Oct-14 1:29am.
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jeevanjoshi wrote: I am only worried about load on browser and DB Typically, your code won't change much as long as you write good code to begin with. Handling an increase in load is done by configuring servers, not changing code.
There are only 10 types of people in the world, those who understand binary and those who don't.
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Hi all,
I am very new to ASP.net MVC.
I am creating a simple web application and want capture and save the userID to a newly created record by the user.
The reason is, I want users only can edit the records they created if not their record then only can view (except for the admin ofcourse).
modified 16-Oct-14 8:41am.
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It is not clear what is the question.
I beleive getting the current username inside a controller can be done like this:
Username = User.Identity.Name
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Thanks so much for the respond.
Part 1. Get the user ID.
Part 2. Write the user ID to the Database (server side)
So, Username = User.Identity.Name is to get the user ID.
Now how do I write the user ID to the table (the database).
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