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namespace System.Web.Mvc.Html {
using System;
using System.IO;
public class MvcForm : IDisposable {
private bool _disposed;
private readonly FormContext _originalFormContext;
private readonly ViewContext _viewContext;
private readonly TextWriter _writer;
[Obsolete("The recommended alternative is the constructor MvcForm(ViewContext viewContext).", true /* error */)]
public MvcForm(HttpResponseBase httpResponse) {
if (httpResponse == null) {
throw new ArgumentNullException("httpResponse");
}
_writer = httpResponse.Output;
}
public MvcForm(ViewContext viewContext) {
if (viewContext == null) {
throw new ArgumentNullException("viewContext");
}
_viewContext = viewContext;
_writer = viewContext.Writer;
// push the new FormContext
_originalFormContext = viewContext.FormContext;
viewContext.FormContext = new FormContext();
}
public void Dispose() {
Dispose(true /* disposing */);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing) {
if (!_disposed) {
_disposed = true;
_writer.Write("</form>");
// output client validation and restore the original form context
if (_viewContext != null) {
_viewContext.OutputClientValidation();
_viewContext.FormContext = _originalFormContext;
}
}
}
public void EndForm() {
Dispose(true);
}
}
}
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