I'm trying to write a controller method that returns an ActionResult.
In this method, i would like to:
1. call an HTML helper method
2. Capture and store the HTML helper's rendered HTML in a string
3. Return the method with the rendered HTML wrapped as a JSON
How do i call the Html Helper method from my controller method? Simply using the static class HtmlHelper does not work.
Can I call Ajax.BeginFrom from a custom helper method ?
AjaxHelper is not available in a custom helper method, so I tried to pass the "Ajax" available in ViewPage to Helper method while calling it, but then in method, BeginForm is not available on that passed "Ajax" parameter.
Now I found out how to create custom html helpers
using System;
namespace MvcApplication.Helpers {
public class InputlHelper {
public static string Input(this HtmlHelper helper, string name, string text) {
return String.Format("<input name='{0}'>{1}</input>", name, text);
}
}
}
Now how to turn it into a strongly typed helper method InputFor Like it is in the framework?I don't need the Html.TextBoxFor method, I know it exists. I am just curious in how to implement this behavior myself and used this as a simple example.PS. I was looking in the mvc source code but couldn't find a trace of this mysterious TextBoxFor. I only found TextBox. Am I looking at the wrong code?
In a webforms application, it's possible to add a server control to the markup and then access that control from the corresponding code behind file, but I'm not sure of the MVC equivalent of this functionality.
I've been looking at some tutorials, and it appears that in MVC applications, instead of using server controls, the examples are using HTML helpers, such as Html.TextBox, etc.
However, while I can find examples html helpers in views, I can't find any examples of how these helpers are accessed in the controllers, so I've declared an Html.TextBox in my view but don't know how to access its value in the controller when I hit enter.
i have this code in a ViewUserControl, everything in between the foreach i want to pull out and call from a helper method...
[Code]....
im extending the htmlhelper. but it i cannot call the renderaction of it.
using System.Text;
using System.Web.Mvc;
using System.Web.Mvc.Html;
public static class ViewHelpers
{
public static string Text(this HtmlHelper htmlHelper, string name, object value, bool isEditMode)
{
htmlHelper.RenderAction(...) //cannot be called
}
}
how can i call the RenderAction?
It's a little unclear for me on when to use a custom helper method and when to use RenderAction and also when to simply use ViewData instead. Some of their functions overlap slightly.
For example, if I were to create a Category navigation bar, would I create a new helper method and place that in some partial view? I had initially though of doing this, but I read on some blog to use RenderAction instead.
Assume the list of categories is coming from some data source.
I am using ASP.NET MVC 3 and NUnit. I am trying to write a unit to test one of my helper methods. Here it is:
public static class UrlHelperAssetExtensions
{
private static readonly string yuiBuildPath = "http://yui.yahooapis.com/2.8.2r1/build/";
public static string YuiResetFontsGridsStylesheet(this UrlHelper helper)
{
return helper.Content(yuiBuildPath + "reset-fonts-grids/reset-fonts-grids.css");
}
}
Here is my unit test:
[Test]
public void YuiResetFontsGridsStylesheet_should_return_stylesheet()
{
// Arrange
RequestContext requestContext = new RequestContext();
UrlHelper urlHelper = new UrlHelper(requestContext);
// Act
string actual = urlHelper.YuiResetFontsGridsStylesheet();
// Assert
string expected = yuiBuildPath + "reset-fonts-grids/reset-fonts-grids.css";
Assert.AreEqual(expected, actual);
}....................................
I have a custom Html Helper that takes a few parameters and generates some Html. For example:
[Code]....
This would render something like:
[Code]....
I would like to be able to define a Razor Template so the Html Helper renders the Html differenlty:
[Code]....
This would render:
[Code]....
I was wondering if it is possible to create a custom strongly typed HTML Helper in ASP.NET MVC 2? Creating a regular (read not-strongly-typed) helper is straightforward but i am having difficulty creating strongly typed versions. For example, I would like to create a DatePickerFor html helper...
View 3 RepliesMVC contains a strong typed HTML Helper (HTML.CehckBoxFor()) this takes a bool and returns a bool. To make the URL smaller I am thinking to change the bool values on the model object to byte or somthing like that so the url only contains &Parameter=1.
I have found this snippet :
[Code]....
But I have no clue how to turn this in to a strong typed HTML Helper for checkbox that takes byte instead of bool. Its also important that the model object is set with byte instead of bool.
I know we can set autopostback property of dropdwonlist using javascript or jquery and it will go to action controller specified in Form tag.
[Code]....
but how can we set it to some different action other then what we specified in Form Tag.
I have created my own custom role provider class "SGI_RoleProvider" and configured properly.
Everything is working fine.
Suppose that I have added a public method say "SayHello()", then how can i call that. Because if i am using Roles then the method is not displayed. If i am forcefully using that Roles.SayHello() then compiler gives the error.
how can i call this. Because creating a new instance of SGI_RoleProvider is meaningless.
In the view I have a HTML button:
<input type="submit" value="Submit" />
Also I have a dropdownlist, how do I call the controller's action after I click the "Submit" button?
And how do I pass the Model back to the controller action as well?
The reason I want to pass back the model (or other object/class) to controller's action is I might have 5 dropdown lists and 3 edit boxes values to be sent as parameters. So I would like to assign these parameters into a object and send it back to controller's action.
I have ascx partial view with html-layout like that
<%=Html.ActionLink<PersonController>(x => x.Publications(param1, param2, ... )) %>
My ascx is pretty big & I'd like to reuse it, changing controller/method in Html.ActionLink with another controller/method. Method of another controller has the same signature as PersonController.Publications. Whats best way how to make controller/method configurable for my layout.
I have an editable table in my view.
how can i accept the whole table in a controller action method?
what parameter should i gave to accept the whole table
I am quite new to MVC development and facing some basic issues.
I am having a form on which I am taking input form user. It is bould to one of the properties on Model class.
I am having a submit button
<input type="submit" value="Save"/>
Now I want to call Save Action in my controller on click on this Save button.
But it is not working. I have checked on following things:
1. My HTML page is correctly point to the controller
2. I have written HTML code as
<%= HTML.BeginForm("Save","ControllerName", FormMethod.Post); %>
<input type="submit" value="Save"/>
<%= HTML.EndForm();%>
After rendering a view on a Post, a call to RenderAction inside the view will call for the Post method. Is there any way to specify I want to call the Get method instead of the Post?
View 1 Replies so I've got some HTML that's generated dynamically. Part of it
StringBuilder.Append("<input type="button" onclick="Email_Clicked" value="Email" class="button" runat="server" />");
I need this to call C# method Email_Clicked
How can I accomplish this without asp:button control?
I am trying to use Rounded Corner buttons in my ASP.NET website using AjaxControlToolkit's RoundedCornerExtender. When I use this on a Buton control, I get an error saying "htmlfile: Unexpected call to method or property access" to which I can Break/continue.
When I run the sites, it gives me an error "Unexpected call to mathod or property access".Here's the screenshot: [URL]
is it possible to call a custom method or class before accessing webmethod from pageMethods ?
View 2 Replies how to make a stadard HTML button call an action method and pass parameters to it? Can you please show me an example of how to do this? THis is the method:
public ActionResult CCDReview([DefaultValue(1) int CUrrentPage])
{
//method code is here.
}
Yes, my button is wrapped in a form, and it's a "submit" button.
I have a web method which is work fine on other page but when I add it user controller it can’t call that method I will debug it means add break point but can’t call.My control are in a folder name User Control...Following my method to call the web method.
url: "UserControl/control.ascx/Savedata",
user control is folder name and the control.ascx is my control page name and save data are my web method.
How can i transfer control to a controller's method from a controller's method..I am having two Controllers Home and User.. After username and password are verified inHome Controllers method , i want to show the User Controllers index page , so i have to callindex method of Home controller..How can i do it.
View 5 RepliesI have written an Http Module that hooks onto the Response.Filter property of the current request and does various replacements within the HTML before it is sent to the client.All the work is done in the Write method which is overriding Write in the base class Stream.
The Write method is called multiple times for a single response - the HTML seems to be written to the output stream in chunks. My problem is that I don't have an efficient & reliable way of telling if the current chunk is the last chunk (for why I want to know this see below). The only way I have come up with is to check if the chunk contains a closing html tag - but this is not very efficient or reliable.
The reason this is needed is that the module must add the "Refresh" HTTP header to the response, but only if the HTML fulfills certain conditions (and there are certain conditions that mean the header must not be added). So, only when the last chunk has been seen does the code know if the header can be added or not. So, I either need a test for the last chunk, or on each call to Write I add the header if the current block of HTML passes the test (if it has not already been added) or remove the header if the current block of HTML fails the test (if it has already been added).
So, is there a better way to test for the last chuck OR is there a way to test for a particular header being in the response and delete it (there doesn't seem to be a way to do this - only to append headers)?