You can define a class just like the way the MvcForm
is implemented. The class below allows you to create a tag which contains other elements.
public class MvcTag : IDisposable
{
private string _tag;
private bool _disposed;
private readonly FormContext _originalFormContext;
private readonly ViewContext _viewContext;
private readonly TextWriter _writer;
public MvcTag(ViewContext viewContext, string tag)
{
if (viewContext == null)
{
throw new ArgumentNullException("viewContext");
}
_viewContext = viewContext;
_writer = viewContext.Writer;
_originalFormContext = viewContext.FormContext;
viewContext.FormContext = new FormContext();
_tag = tag;
Begin(); // opening the tag
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
public void Begin()
{
_writer.Write("<" + _tag + ">");
}
private void End()
{
_writer.Write("</" + _tag + ">");
}
protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
_disposed = true;
End(); // Closing the tag
if (_viewContext != null)
{
_viewContext.OutputClientValidation();
_viewContext.FormContext = _originalFormContext;
}
}
}
public void EndForm()
{
Dispose(true);
}
}
To make use of this MvcTag
in the way the MvcForm
is used, we have to define an extension
public static class HtmlHelperExtensions
{
public static MvcTag BeginTag(this HtmlHelper htmlHelper, string tag)
{
return new MvcTag(htmlHelper.ViewContext, tag);
}
}
And that's it. Now you can use it as:
@using(Html.BeginTag("div")) @* This creates a <div>, alternatively, you can create any tag with it ("span", "p" etc.) *@
{
<p>Contents</p>
}