i m using struts 2 and tiles to build a small application, i m using a simple layout header + body + footer, i have to display some dynamic information (menu, logged in user information, etc.) in the application header. So what is the best way to do that ? avoid duplicate code, header logic separation etc.
- do i have to use tiles view preparer ?
- create a custom interceptor that implements the common functionality? if yes, how to do that if a already have a user bean and menu bean?
thanks
Struts 2 documentation should help you get started http://struts.apache.org/release/2.1.x/docs/tiles-plugin.html
Related
HI I am just learning asp.net mvc 3 and I am tryng to create a common menu for my entire application.I understand I can do that in _Layout.cshtml file witch is the default template for every page.
Now I have looked into sections for adding a template insite _Layout.cshtml but from what I can gather I need to define the section in every view.
I already have the logic for accesing the data defined in a separate class.All I need is to call the method witch will return a Dictionary<string , List<string>> , and then display the data by looping into it.
Aldo I could probably do this directly inside the Index.cshtml file by using the razor syntax I believe there must be a better way
So is there a way to create a template that can then bee added inside the _Layout.cshtml?
Creating a section for the menu on each view could work but I think another approach could be easier to mantain. On your layout itself use #Html.Partial to render your menu. Then on that partial view you could have all kinds of operations, such as database access, in one single spot.
Here is an article on how to do exactly this:
http://techbrij.com/981/role-based-menu-asp-net-mvc
Was just looking into something similar. Hopefully partial views are your answer, this is a template you can re use and stick on any page. Information found here.
I'm posting this question because I do not know the best/correct way of doing the following.
My team-mate (the designer) sent me a good looking design that includes a wizard for adding new items (for auction). The user has to fill in all the required details which include the title, description, starting price...etc AND a list of tags (up to 4 tags - chosen from the database, will use auto complete) as well as a list of up to 3 images/youtube url's (for the sake of better explanation check this image out: http://i55.tinypic.com/2v11zzr.png)
Ok so I figured out how I should do the wizard ( reference: how to make a wizard with ASP.Net MVC) but I'm not sure about how to collect the lists and the images/url's. Here's what I'm thinking:
For the images/url's, I should create a parent view model from which two sub-classes (ImageViewModel & YoutubeUrlViewModel) would inherit from and then in the controller action when I parse the post data, I would check to see the instance of the parent view model and act accordingly.
Now about the lists, I'm not sure whether I should include a List in my view model or whether I should include 4 string properties representing the tags (the same will apply to the list of images/url's).
So what's the best way of doing this?
And Haacked to the rescue: http://haacked.com/archive/2008/10/23/model-binding-to-a-list.aspx
:)
I have looked all over for elegant solutions to this not so age-old question. How can I lock down form elements within an ASP.Net MVC View, without adding if...then logic all over the place?
Ideally the BaseController, either from OnAuthorization, or OnResultExecultion, would check the rendering form elements and hide/not render them based on role and scope.
Another approach I have considered is writing some sort of custom attributes, so as to stay consistent with how how we lock down ActionResults with [Authorize]. Is this even possible without passing a list of hidden objects to the view and putting if's all over?
Other background info: We will have a database that will tell us at execution time (based on user role/scope) what elements will be hidden. We are using MVC3 with Razor Viewengine. We're utilizing a BaseController where any of the Controller methods can be overridden.
Any help on this would be deeply appreciated!
You could use a number of different methods:
Send the user to a different view (display only view) based on the action filter, or a condition in the controller.
On a field basis, you could build the logic into the editor templates to read custom data-annotations based on role/permission.
You can build HTML helpers to handle the logic and render the appropriate partial view, css class, or text.
For more reading:
How much logic is allowed in ASP.NET
MVC views?
ASP.NET MVC 2 Templates, Part 1: Introduction (there are 5 parts, very informative and a good place to start developing your own editor templates)
Is there a recommended approach for creating Google Sitemaps using ASP.NET MVC?
I'm new to MVC and this is the first time I've needed to create one and wondered how best to go about it.
I have a number of static links (About Us, FAQ's etc.) that I would like included within the sitemap, but then need the rest of it to be dynamically generated from articles that have been posted on the site.
Any advice/direction on how to create this would be much appreciated.
1 - The first thing you'll need is to create a representation of your entire website a list of nodes which have children, parents and so forth. The easiest way to do this without rolling your own solution is to use the MVCSiteMapProject. It allows you so use MVCish terms like your action and controller names to define nodes which will automatically have the correct urls using your routing definitions.
2 - Now because the MVCSiteMap inherits from the default XmlSiteMap (may not have the exact name right ) you can use another add in to generate a google sitemap from the nodes you've defined in the MVCSiteMapProject.
There a bunch of ways to do #2 so its up to you to decide the technique.
You could create a generic handler the same as web forms, but I'd be inclined to use a controller action and a custom route.
Some simple steps to follow might be:
Create an action in your Home Controller (or create a new one), call it SiteMap.
Have the action return a View with your page data as the model.
Create a View called SiteMap that contains the Google XML, then iterate through your page data to generate the dynamic content.
Add a custom route to your Global.asax file that points to "/sitemap.xml" or whatever and pre-populate your the controller and action parameters with that of your new action.
If you're unsure of custom routes, just copy the default one and paste it above. The routes are handled first come first serve. Make sure you give it a new name.
Rich
for dynamic sitemap, i found this is the best solution : http://ben.onfabrik.com/posts/generating-dynamic-xml-sitemaps-in-aspnet-mvc
it use a controller to generate the xml file.
I am creating an asp.net MVC application in which I want to provide a functionality to add a controls dynamically. I have a form in which there are 2 text boxes for First Name and Last name which serve as a single control. Now an user can add any number of this group of controls. I am able to add these controls on the page using java script. But I do not know how to access the values of these control when the user submits.
Please help in this or suggest another approach
Thanks
Look at using a Jquery AJAX call for the submit operation.
You can interate through your controls (easy with jquery class selector and $.each) and push the variables into a js variable.
Parse it as JSON and pass the data back to the controller using the ajax call..
Have a read of the article Editing a variable length list, ASP.NET MVC 2-style by Steve Sanderson. It shows you how to do what you are looking for in a clean, MVC style.
If you're coming from a webforms perspective, you're accustomed to adding those new controls programmatically in the codebehind. Using ASP.NET MVC, you're better off doing this with javascript.
It should be trivial to write a javascript function that adds FirstName1, FirstName2, FirstName3, etc. In the Controller, inspect the Request.Form.AllKeys to determine how many fields were added by the user.
You could also iterate a number in a hidden field called "txtNumFields", then use that as your controlling value in a for loop:
int numFields = int.Parse(Request.Form["txtNumFields"]);
for (i==0;i<numFields ;i++)
{
string firstName = Request.Form["FirstName" + i.ToString()];
...
}