I am a longtime .NET developer but for big applications and services. This is my first asp.net project and I have chosen MVC. I have a need for nesting a ListView within a ListView. In this simple catalog app, I have EF 4 Entities that are Categories, SubCategories, ItemTypes, and Items.
My goal is to display a 5 column layout of SubCategories with their ItemTypes below them in a ViewPage. I did just fine with it done out in C# as server directives such as:
[Code]....
But now I would like to do it with nested listviews and I am having trouble with binding in the inner listview. Here is what I have so far:
[Code]....
The bolded line is bogus, of course. The listview won't accept a declarative datasource in this situation. How do I bind to the ItemTypes of the outer SubCategory?Also, I understand there is no code-behind file and I accept that this is because all logic should be in the controller. But does that leave me with the inline binding shown above for the outer listview?
I suddenly met a problem with nested ListViews with custom DataSources and DataPagers per each inner item.The original task looks like this. But for the independence from the data sources, I have made an essential example:
Markup:
[Code]....
Code-behind:
[Code]....
Well, the result is discouraging! The DataPagers don't work as appropriate:Try to go to the second group of pages (ex, page #6) manually, and then click on page #7 at the same Pager. You will accidentally appear at page #3!While at the same #6 page, click on page #10. Nothing will happen!Next/Last buttons not work at all!Previous button acts the same as First button!What could be the reason of such a strange DataPagers behavior? Or, is there the better way to create nested ListViews each with it's own paging?
I am upgrading a website project from asp.net 3.5 to 4.0. I went through the upgrade wizard and site compiled and built fine. But immediately I have encountetred a problem.I have 3 nested ListViews all using the ItemCommand event. Under 4.0 once the ItemCommand event has fired on the inner ListView it then bubbles up and fires on the parent and finally the grandparent.This is a change in behaviour from 3.5 where only the inner ListView event fires. While I can code round this I am worried about these subtly changes between the two versions.
I am having a problem with finding the innermost ListView of a triple nested ListView. The middle ListView has a LinkButton whose event is handled by the outermost's ItemCommand. In the ItemCommand I want to find the third, innermost ListView and set its datasource. How can I find it?
I have an array object with another nested arrayobject within it. I am binding the outer arrayobject to a gridview and on row data bound event i am refernecing the nested array object and populating a dropdown list in atemplate column of a gridview row. Thgis works fine but when i implement paging and handle the PageChanging event then the data binding of the nested array does not complete properly. See code below. For each page in the gridview the dropdown list is repeatedly populated with the same data
i doing one application.That is grid binding .i got this error
System.Web.Mvc.HtmlHelper<object>' does not contain a definition for 'GridView' and the best extension method overload 'MvcApplication2.Code.GridViewExtensions.GridView<T>(System.Web.Mvc.HtmlHelper, MvcApplication2.Code.GridViewData<T>, System.Action<MvcApplication2.Code.GridViewData<T>>, System.Action<T,string>, string, string, System.Action<T>, System.Action<MvcApplication2.Code.GridViewData<T>>)'
how to find this solution and how to change System.Web.Mvc.ViewPage to System.Web.Mvc.ViewPage<Model>
I need to bind a List control based on the Gridview Row's datakeyName value while the Gridview control is being loaded into the page. I tried the following but it does not work.The BulletedList control is nested inside a Gridview Control and they both bound to an ObjectDataSource control. In my code, I passed teh UserID into the UserID parameter and call the Select() method but still does not work. Basically, I want to list of a user's hobbies, therefore the hobbies control are driven by the userID. tell me how can I get it to work?
protected void UserGridView_RowDataBound(object sender, GridViewRowEventArgs e) { int UserID;
I ran into this kind of situation many times without a nice solution. Binding a data source to a gridview and one of the column require nested query. Is it possible to have a callback function other than Eval()?
I've got a project I'm working on where I need to put a RadioButton inside a ListView, and have them all have the same GroupName. (can't use RadioButtonList, long story).[URL]This works perfectly, but with one small bug which undoubtedly will come back to bite me. If I click one radio button, and then click another while the javascript function is still running and has not completed; I can get 2 radiobuttons in the same group selected.
I want two on the top and 2 on the bottom inline with the top ones, I use float left and float right for listbox 1 and listbox 2, but using this on 3 and 4 gets them all on same horizontal line if room, I think to use float for listview 3 and listview 4, needs a new parent to align themselves just under the first two, but do not know how to do that ....
But each time I do this, the ViewData object seems to disappear (intellisense doesn't show it). Also, Model goes away too. I must be making a really simple/dumb mistake. I also tried to Import the namespace containing the CompanyModel class on the same aspx, but that doesn't do anything.
When I try to view the page in the browser I get this error:
Parser Error Message: Could not load type 'System.Web.Mvc.ViewPage<CompanyModel>'.
I am developing a website which will be having both asp.net pages and MVC pages in it, So I have BaseWebPage class which will be used for both asp.net pages and MVC Views. but My BaseWebPage class is inherited from System.Web.Mvc.ViewPage, So Will there be any code/ functionality break for normal asp.net pages, because System.Web.Mvc.ViewPage is overriding some of the Pagelife cycle methods.
How do you pass a linq query of the general form - var q = from c in Customers and assign the q variable to either the Model property or stuff it into the ViewData["myq"] variable?
How do you pass a linq query of the general form - var q = from c in Customers and assign the q variable to either the Model property or stuff it into the ViewData["myq"] variable?
My application has developed an issue that has got me baffled - i'm fairly new to MVC so please bear with me. I have an MVC web application and a Domain library, the domain has a DataModel.dbml with a single table Enquiry I have a single view called Contact with a controller HelpController, this view has a few form fields to insert the data in to the database the view has the following at the top of the file
I want to display 2 levels of listview, where outer listview has a datapager with 1 inner listview per page. The code is:
[Code]....
Then I bound outer listview with data in page_load(), which will invoke ExerciseBound(). It work fine for 1st page. The code is:
[Code]....
When I click on 2nd page, it will invoke ChangeExercise(). The code is:
[Code]....
Suppose it will invoke ExerciseBound() again and display 2nd listviewitem, but it fails to invoke ExerciseBound(). I change ChangeExercise() to
[Code]....
But PagePropertiesChangingEventArgs does not contain ListViewDataItem. Any thought? Is there a way to save ListViewDataItem in ExerciseBound() so that it can be accessed in ChangeExercise()? Or is there other way to access ListViewDataItem from ListView class directly?
I have around 5 SQL queries that are returning datasets to my VB.NET application, the queries could be any number not just 5. I have a listview already on the page and all the queries will return the same exact data types (just different numbers). How can I create a listview in the code behind for each one? Or what would be my other options to load up all the results
Error parsing attribute 'something': Type 'System.Web.Mvc.ViewPage' does not have a public property named 'something'.
Notice how it tries to use System.Web.Mvc.ViewPage rather than my BaseViewPage class. To make it more interesting, if I remove the "Something" attribute from the Page directive and put some code in the generic version of BaseViewPage (OnInit for example) the class is actually called / used / instantiated.
So, am I doing something wrong or is this a limitation.
I need to know the best way to do the following. I have nested business level APIs (say level 1 & level 2). L1 needs to call L2. Both APIs use the database layer directly at their own nesting levels.
Now, in the database layer, I fetch the db connection from the pool each time as follows:
SqlConnection conn = new SqlConnection(connString); conn.Open();
Is it proper to fetch the db connection each time on every DB level call as above? I know it will return a connection from the ASP.NET connection pool. However, wouldn't it be better to maintain the same DB connection throughout the nested calls (or throughout the current http request lifetime)? Will fetching a connection from the pool each time cause issues with nested TransactionScopes?
Is there a better, cleaner way to do this in ASP.NET 2.0?
An ASP.NET 2.0 page displays a datalist of records. Each record can have many dates, so the dates are in a nested gridview (I chose a gridview over a datalist here because we want to be able to delete a date and this is easier done in a gridview). The parent record can never be deleted.
The display works fine: the nested gridview gets its datasource during the parent datalist's OnItemDataBound event.
The problem: the nested gridview's delete function. The date gets deleted without a problem (handled in the OnRowDeleting event), but somehow the redisplay is untying all the other nested gridviews from their datasources. The delete does not appear to cause a page postback, so I don't know how the other nested gridviews are losing their datasources.
