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using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Web.Routing;
namespace System.Web.Mvc.Html
{
public static class FormExtensions
{
public static MvcForm BeginForm(this HtmlHelper htmlHelper)
{
// generates <form action="{current url}" method="post">...</form>
string formAction = htmlHelper.ViewContext.HttpContext.Request.RawUrl;
return FormHelper(htmlHelper, formAction, FormMethod.Post, new RouteValueDictionary());
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, object routeValues)
{
return BeginForm(htmlHelper, null, null, new RouteValueDictionary(routeValues), FormMethod.Post, new RouteValueDictionary());
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, RouteValueDictionary routeValues)
{
return BeginForm(htmlHelper, null, null, routeValues, FormMethod.Post, new RouteValueDictionary());
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, string actionName, string controllerName)
{
return BeginForm(htmlHelper, actionName, controllerName, new RouteValueDictionary(), FormMethod.Post, new RouteValueDictionary());
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, string actionName, string controllerName, object routeValues)
{
return BeginForm(htmlHelper, actionName, controllerName, new RouteValueDictionary(routeValues), FormMethod.Post, new RouteValueDictionary());
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, string actionName, string controllerName, RouteValueDictionary routeValues)
{
return BeginForm(htmlHelper, actionName, controllerName, routeValues, FormMethod.Post, new RouteValueDictionary());
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, string actionName, string controllerName, FormMethod method)
{
return BeginForm(htmlHelper, actionName, controllerName, new RouteValueDictionary(), method, new RouteValueDictionary());
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, string actionName, string controllerName, object routeValues, FormMethod method)
{
return BeginForm(htmlHelper, actionName, controllerName, new RouteValueDictionary(routeValues), method, new RouteValueDictionary());
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, string actionName, string controllerName, RouteValueDictionary routeValues, FormMethod method)
{
return BeginForm(htmlHelper, actionName, controllerName, routeValues, method, new RouteValueDictionary());
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, string actionName, string controllerName, FormMethod method, object htmlAttributes)
{
return BeginForm(htmlHelper, actionName, controllerName, new RouteValueDictionary(), method, HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, string actionName, string controllerName, FormMethod method, IDictionary<string, object> htmlAttributes)
{
return BeginForm(htmlHelper, actionName, controllerName, new RouteValueDictionary(), method, htmlAttributes);
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, string actionName, string controllerName, object routeValues, FormMethod method, object htmlAttributes)
{
return BeginForm(htmlHelper, actionName, controllerName, new RouteValueDictionary(routeValues), method, HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
}
public static MvcForm BeginForm(this HtmlHelper htmlHelper, string actionName, string controllerName, RouteValueDictionary routeValues, FormMethod method, IDictionary<string, object> htmlAttributes)
{
string formAction = UrlHelper.GenerateUrl(null /* routeName */, actionName, controllerName, routeValues, htmlHelper.RouteCollection, htmlHelper.ViewContext.RequestContext, true /* includeImplicitMvcValues */);
return FormHelper(htmlHelper, formAction, method, htmlAttributes);
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, object routeValues)
{
return BeginRouteForm(htmlHelper, null /* routeName */, new RouteValueDictionary(routeValues), FormMethod.Post, new RouteValueDictionary());
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, RouteValueDictionary routeValues)
{
return BeginRouteForm(htmlHelper, null /* routeName */, routeValues, FormMethod.Post, new RouteValueDictionary());
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, string routeName)
{
return BeginRouteForm(htmlHelper, routeName, new RouteValueDictionary(), FormMethod.Post, new RouteValueDictionary());
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, string routeName, object routeValues)
{
return BeginRouteForm(htmlHelper, routeName, new RouteValueDictionary(routeValues), FormMethod.Post, new RouteValueDictionary());
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, string routeName, RouteValueDictionary routeValues)
{
return BeginRouteForm(htmlHelper, routeName, routeValues, FormMethod.Post, new RouteValueDictionary());
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, string routeName, FormMethod method)
{
return BeginRouteForm(htmlHelper, routeName, new RouteValueDictionary(), method, new RouteValueDictionary());
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, string routeName, object routeValues, FormMethod method)
{
return BeginRouteForm(htmlHelper, routeName, new RouteValueDictionary(routeValues), method, new RouteValueDictionary());
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, string routeName, RouteValueDictionary routeValues, FormMethod method)
{
return BeginRouteForm(htmlHelper, routeName, routeValues, method, new RouteValueDictionary());
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, string routeName, FormMethod method, object htmlAttributes)
{
return BeginRouteForm(htmlHelper, routeName, new RouteValueDictionary(), method, HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, string routeName, FormMethod method, IDictionary<string, object> htmlAttributes)
{
return BeginRouteForm(htmlHelper, routeName, new RouteValueDictionary(), method, htmlAttributes);
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, string routeName, object routeValues, FormMethod method, object htmlAttributes)
{
return BeginRouteForm(htmlHelper, routeName, new RouteValueDictionary(routeValues), method, HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
}
public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, string routeName, RouteValueDictionary routeValues, FormMethod method, IDictionary<string, object> htmlAttributes)
{
string formAction = UrlHelper.GenerateUrl(routeName, null, null, routeValues, htmlHelper.RouteCollection, htmlHelper.ViewContext.RequestContext, false /* includeImplicitMvcValues */);
return FormHelper(htmlHelper, formAction, method, htmlAttributes);
}
public static void EndForm(this HtmlHelper htmlHelper)
{
EndForm(htmlHelper.ViewContext);
}
internal static void EndForm(ViewContext viewContext)
{
viewContext.Writer.Write("</form>");
viewContext.OutputClientValidation();
viewContext.FormContext = null;
}
[SuppressMessage("Microsoft.Reliability", "CA2000:Dispose objects before losing scope", Justification = "Because disposing the object would write to the response stream, you don't want to prematurely dispose of this object.")]
private static MvcForm FormHelper(this HtmlHelper htmlHelper, string formAction, FormMethod method, IDictionary<string, object> htmlAttributes)
{
TagBuilder tagBuilder = new TagBuilder("form");
tagBuilder.MergeAttributes(htmlAttributes);
// action is implicitly generated, so htmlAttributes take precedence.
tagBuilder.MergeAttribute("action", formAction);
// method is an explicit parameter, so it takes precedence over the htmlAttributes.
tagBuilder.MergeAttribute("method", HtmlHelper.GetFormMethodString(method), true);
bool traditionalJavascriptEnabled = htmlHelper.ViewContext.ClientValidationEnabled
&& !htmlHelper.ViewContext.UnobtrusiveJavaScriptEnabled;
if (traditionalJavascriptEnabled)
{
// forms must have an ID for client validation
tagBuilder.GenerateId(htmlHelper.ViewContext.FormIdGenerator());
}
htmlHelper.ViewContext.Writer.Write(tagBuilder.ToString(TagRenderMode.StartTag));
MvcForm theForm = new MvcForm(htmlHelper.ViewContext);
if (traditionalJavascriptEnabled)
{
htmlHelper.ViewContext.FormContext.FormId = tagBuilder.Attributes["id"];
}
return theForm;
}
}
}
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