For example when using a
@Html.TextBoxFor(v => Model.Text);
and submitting the form, the value in the TextBox is automatically assigned to Model.Text.
I want to write such a custom HTML helper.
I know how to write such a extension method for displaying HTML, but how to program the behaviour to assign the value Model.WhatEver.
I want to build a Tag-Cloud and I think it is a good idea to include it in a way like:
@Html.TagCloud(v => Model.SelectedTags, Model.AvailableTags)
The HTML-Helper just prints out HTML, but how can I assign values to Model.SelectedTags?
See how this method is defined:
public static MvcHtmlString TextBoxFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression);
It is just generic extension method in static class returning MvcHtmlString. Just write one yourself and insert it into view via web.config.
<pages>
<namespaces>
<add namespace="NameSpaceWithYourClass" />
Remeber that this method have to take this HtmlHelper<TModel> as extension parameter and
Expression<Func<TModel, TProperty>> expression as expression for selecting property and you will be fine.
BTW: i think for your need would be better partial view since HTML for it can be quite complicated.