The following code works for webform view engine.
<% Model.Categories.ForEach(x => { %>
<li><a href="#">@x.Name</a></li>
<% }) %>
I wrote the above code as below in razor view:
@Model.Categories.ForEach(x => {
<li><a href="#">@x.Name</a></li>
})
But this doesn't work. Is there any way to achieve this in razor view?
I have upgraded my MVC2 project to MVC3 project and now I want to change the viewengine from standard aspx to the Razor viewengine. I have tested to create a new MVC3 project with the Razor viewengine and this works just fine, but now I want to uppgrade my existing MVC3 aspx viewengine project to a project with the Razor viewengine.
View 17 RepliesI've just installed the new MVC3 RC ,and have no idea about where the *.ascx template stuffs live in?
View 1 Replieshow i can write
<input type="checkbox" name="@var.ID"/>
if i use it it never work. how i can done it. it's render as well as i write in code. it's not worked as well scottgu define in their blog
I am using Actionfilter to globally filter our HTML comments from all action methods and in all controllers. It simply overrides OnActionExecuting and runs the response through a regex to filter the comments. I am also using RenderAction to render some more complicated widgets in my website. There is no caching in place, I just use Renderactionto keep my code as simple possible.
When calling RenderAction from within a Razor View, I get an error message telling me that "Filtering is not allowed". The problem does not occur when calling RenderAction from within an aspx View. It only occurs when calling RenderAction from within a Razor View. In case it matters: the view being rendered is implemented with ASPX. Is this a bug or a known limitation?
I have a Page.cshtml similar to the following (that does not work):
@{
Layout = "../Shared/Layouts/_Layout.cshtml";
var mycollection = (ViewBag.TheCollection as IQueryable<MyCollectionType>);
}
<h2>@ViewBag.Title</h2>
content here
@if (mycollection != null && mycollection.Count() > 0)
{
@section ContentRight
{
<h2>
Stuff
</h2>
<ul class="stuff">
@foreach (MyCollectionType item in mycollection )
{
<li class="stuff-item">@item.Name</li>
}
</ul>
}
}
As I said, this does not work. I want to not define the section if there's nothing in the collection. Is there any way to have something like this work? If not, what are my other options? I'm very new to this Razor ViewEngine. Edit In my layout i have:
@if(IsSectionDefined("ContentRight"))
{
<div class="right">
RenderSection("ContentRight")
</div>
}
what i don't want is the div to output when the section is empty.
I'm trying to output some Twitter handles in ASP.NET MVC3 in conjunction with the Twitter @Anywhere API, and I haven't been able to figure out how to actually escape the "@" symbol in a Razor view. Does anyone know what the syntax is for escaping the "@" character in Razor? I've tried using <text></text> and that results in a JIT error.
View 2 RepliesI am using ASP .NET and C#, and using the code-behind-pages concept.I am trying to implement a business delegate pattern in ASP .NET to reduce coupling between the presentation and business tiers.I want to have several ASP pages send information (through asp buttons clicks) to a "business delegate" ASP page, which will in turn send the necessary information to a C# method.The problem is that each button_click event in ASP .NET is directly tied to a C# method. I am having trouble understanding how to separate the presentation and business logic because of that.
View 1 RepliesI am woking on a MVC project which require me to put all controllers, models and views into a folder called Mvc instead of the project root, I created a custom viewengine, here is the code:
[Code]....
My Application_Start:
[Code]....
It does not work, when I request [URL], I got: The view 'Index' or its master could not be found. The following locations were searched:
~/Mvc/Views/Index.aspx
~/Mvc/Views/Index.ascx
~/Mvc/Views/Shared/Index.aspx
~/Mvc/Views/Shared/Index.ascx
I expect the custom viewengine to find the view at: ~/Mvc/Views/Home/Index.aspx
I've read about how I can create a custom viewengine however is it possible to load an assembly which has a method decorated by my own custom attribute say..[RenderWithView], then I dynamically invoke that method and apply a view engine to it, finally returning the html?
View 3 RepliesI were following the tutorial at this page of how to build my own view engine: [URL] And in hope of just extending the existing RazorViewEngine I made some changes to the code in the tutorial...
[Code]....
The thing is that now when I run my site..I get the following error: CS0246: The type or namespace name 'WebMatrix' could not be found (are you missing a using directive or an assembly reference?) and I just cant find a way to solve this..I have added the references.
i'm upgrading my asp.net mvc app to the MVC 3 from mvc 2. I had everything set up so that there were no areas, but now i have to move the old application into its own area so i can start a new one. The new area is working great, but for some reason, when i try to go into the area where the old app was, it looks for the views to be in the views folder in the root of the app, instead of in the views folder in the area.
View 2 RepliesI am following Chris Pietschmann's solution for theming in ASP.NET MVC.
One thing I have noticed is that the view name is not being retrieved from the ViewLocationCache on subsequent requests. I am using ASP.NET MVC 2.0 RC
When the following code is executed:
this.ViewLocationCache.InsertViewLocation(controllerContext.HttpContext, cacheKey, virtualPath);
and I hover over this.ViewLocationCache it just returns {System.Web.Mvc.NullViewLocationCache} - suggesting nothing was added?
I am trying to translate or convert C# code that a friend gave me. I have limited C# knowledge but was going along OK until I hit the following code that includes a delegate. I cannot figure out how to get the equivalent functionality in VB.NET. I'm using
.NET 2.0 and VS2005.
public bool TryGetRedirectMatch(UrlContext url, out RedirectMatch match)
{
if (url.Path.StartsWith("/product.aspx", StringComparison.InvariantCultureIgnoreCase))[code]....
I am working with .net 3.5 and making application in asp.net. I show some application which is make in C# in Windows form where i see following code in class level declaration
[Code]....
and following code in form load
[Code]....
and following code in some event
[Code]....
Now my problem is I am making application in asp.net code behind VB.net where I cannot how to apply all this in my application. I more confuse with Delegate and BeginInvoke. I read somewhere that to use BeginInvoke in VB you should use Ajax.
In my code behind on a button click event I want to set the text of a label to inform the user where in the process we are. How do I create a delegate to allow the label to get updated
View 1 Replies I am trying to get this to bind to a gridview, without any luck. I would like each asynctask to ultimately return seperate datasets, but for now I can deal with the same one being returned.
[Code]....
I am using c# and socket programming to create a web application. Anyone knows how to declare a useable delegate or using another method to invoke or call a method such that my codes will not have error? I am stuck for at least a week!
View 1 Replies<asp: GridView..... ID="MyGrid" AllowSorting = "True" OnSorting = "SortMyGrid">
protected void SortMyGrid(object sender, GridViewPageEventArgs e)
DataTable TheGridData = MyGrid.DataSource as DataTable;
And then when I run the codeNo overload for 'SortMyGrid' matches delegat
I am getting this error and can't figure out how to resolve it. CS0123: No overload for 'UserInfoDataSource_Selecting' matches delegate System.Web.UI.WebControls.ObjectDataSourceSelectingEventHandler'.
<Fields>
asp:BoundField
DataField="FirstName"
HeaderText="FirstName" SortExpression="FirstName"
<asp:BoundField
DataField="LastName"
HeaderText="LastName" SortExpression="LastName"
[code]...
I created a control where other developers can create an instance and use. There is a button click in the control. How do I allow developers to plug in their own code in a certain part of my control? I am not sure if or how exactly to use a delegate or event in this scenario.
[code].....
How to I update MyControl to allow this?
I need to pass a value from the selected button in user control to the containing page. I have it working fine but only by using a bunch of if statements that strike me as ugly. Can't figure out how to use a switch statement which, I think, would be a bit less cumbersome. I'd welcome on how to clean up this code (obviously I'm new to delegates).
Here's the code:
User Control:
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="DelegateUserControl.ascx.cs"
Inherits="Foobar.UserControls.DelegateUserControl" %>
<asp:Button ID="Button1" runat="server" Text="Button 1" onclick="Button_Click" />
<asp:Button ID="Button2" runat="server" Text="Button 2" onclick="Button_Click" />
<asp:Button ID="Button3" runat="server" Text="Button 3" onclick="Button_Click" />
User Control code behind:
using System;
namespace Foobar.UserControls
{
public delegate void SendButtonValueToPage(int buttonValue);
public partial class DelegateUserControl : System.Web.UI.UserControl
{
public static event SendButtonValueToPage SendButtonIdToPage;
[Code]....
I have a server control that performs some logic. I'd love to provide a default implementation of this logic in the code of the control, but allow a developer to pass an alternate implementation of this logic in as a delegate, if they wish.
So...
<prefix:MyControl FooLogicMethod="MyUtilityClass.MyFooLogicMethod" runat="server"/>
If they don't specify this, I'll use my default method. If they do specify it, I'll use the method they passed in.
Can I do this as a delegate, or do I need to reflect it?
I have a web app where a user will visit a page with a QueryString parameter passing the ID of the object I should retrieve.
What I then need to do is run a number of checks to ensure the user can access that data, and also find out if another user has a lock (recorded in the DB) on that object.
Currently these searches are all performed sequentially, however I'm thinking the best option might be to use delegates to be able to fire off the three or four searches required at once then use the results as they are returned.
My implementation for this would be using a delegate(s) and calling BeginInvoke, however I'm worried the overhead of threading this may lead to no speed increases.
My research has indicated it will use the ThreadPool, so there shouldn't be too much overhead, but I'd like to know if anyone has implemented this kind of solution to a similar scenario on a high traffic site and seen good resutls from it?
The reason I'm looking to do this is we are reengineering our application from the ground up, and need to make sure we are building something that will scale considerably.
I have got a query regarding the usage of delegate in usercontrols. The scenario is I have got a user control which acts as a footer
on all the pages, It has the following place holders : Email, Print, Logout.
What I want to acheive here is when the customer logged in he/she has certain feauture's on the website for instance his/her personal diary,
dieting charts, birthday calender etc. I have figured out a way to create pdf's of each summary , what I am looking for is how to use the usercontrol
for instance when the customer clicks on the email place holder on certain page which is in the footer usercontrol, the following place holder should send
an email with the pdf file of that particular page attached to the customer. I came to know that delegate is the best way of doing it, but I cant find any specific tutorial on it.
