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Actually i'm developing new asp.net mvc app in most like qustionare. But while developing i came across an issue. I created action method which renders questions one by one depending on passed questionId. So when i try to render next question, my Html.CheckBoxFor somehow remember state of previous question and just left the same state independently from real value.
Does anybody experienced such error?
Thanks
In your Post action, try clearing the model and then using ModelState.Clear() before passing it to the view again.
Validation information and model bindings are kept when posting back from an [HTTPPost] action unless you clear the model's state. I think there is an assumption in MVC you would only post back to show validation messages and allow changes. If that's not the case then use ModelState.Clear() and reset your values. see link below...
Why you need ModelState.Clear
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I'm using C# and MySql trying to make a desktop application. MySql is on a server. The problem that I found is my application takes quite a while to load data from database to create object. Here is my logic. A user opens up inventory page, then the application will load all products' data from database creating object and show list of products. The application worked fine when I have less products. When I have many products in the database, the loading process takes a while. Any suggestion on logic? My logic is probably not good enough.
You should use paging to get limited data from database at most 25 then on next page 25, like this you can avoid overhead the problem of slowness
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Wrote web api on asp.net. When accessing it, information about the server is displayed, how it can be removed.
Why did you close the question? It contains all the necessary information.
Go to the Controllers folder and look for the Home controller there you will find a method called by default Index delete that entry and remove the code from Views/Home/Index.html and Views/Shared/_Layout.html.
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I have a View - which is a UserControl - that shows different information and gets updated by its corresponding ViewModel.
Now I want to use this View in different other Views, which are UserControls as well.
I tried different approaches like using ResourceDictionaries and other stuff, but I couldn´t get a satisfying result.
You have to put a ContentControl in views that are importing your view and set the ContentControl's Content to the given view
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My MVC application currently has an Html.Begin form in order to submit a form. Now there is a nested BeginForm in order to display the radiobuttonlist. My issue is when I hit Save, it doesn't hit my HttpPost action method. How can I solve this problem?
Thanks.
While you might be able to do stuff like this in Angular, you can't do this for server-side forms. You can have more than one form on a page but they can't be nested.
You'll have to remove the inner form tags and deal with both type of post in the same controller action. Create some logic that works out what button was pressed and returns an enum called something like PostAction, then in your controller you can have a section of code for each type of action.
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I am working on a web page that requires distinct user information to be displayed. several different users will be using this page, so the data will be different for each account.
This information is retrieved through stored procedures via entitymodel.
I cannot use an objectdatasource because my SP for the DDL requires an parameter(UserId) (unless there is a way to do it, in which I would not know !) The UserId is grabbed at page load via aspnet membership. this DDL also needs to be populated as the page opens up.
I have done some research on programmatically populating a DDL but cannot find any examples that tailor to what I am trying to do.
I need a general DDL to be populated(item and value) by a SP with a parameter(userId), when the page opens up.
Nothing more, nothing less :)
My question basically would be; what would be the best way to populate the dropdownlist under these circumstances
This post uses a Non-Typed-DataSet and a stored procedure to bind to a CheckBoxList which is the same principle (caveat: own blog post):
http://www.codersbarn.com/post/2008/10/12/Bind-CheckBoxList-to-DataSet.aspx