在 MVC 4 中，您可以安装这个包Twitter.bootstrap.mvc，这会添加很多 HTML 帮助程序。
安装后，您可以直接从控制器发送警报以查看。
例如：
public class AccountController : BaseController
{
public ActionResult AlertExample()
{
Success("This is a success alert");
Error("This is error alert");
Information("This is information alert");
...
etc.
}
}
这会将成功警报从控制器发送到视图。
目标：从控制器发送咆哮消息
我试图从我提到的项目中实现同样的事情。
所以，这就是我添加到我的项目中的内容。
其他控制器派生自的基本控制器
public class BaseController : Controller
{
//
// GET: /Base/
public void Warning(string message)
{
TempData.Add(Alerts.WARNING, message);
}
public void Success(string message)
{
TempData.Add(Alerts.SUCCESS, message);
}
public void Information(string message)
{
TempData.Add(Alerts.INFORMATION, message);
}
public void Error(string message)
{
TempData.Add(Alerts.ERROR, message);
}
}
控制组扩展类
namespace BootstrapSupport
{
public class ControlGroup : IDisposable
{
private readonly HtmlHelper _html;
public ControlGroup(HtmlHelper html)
{
_html = html;
}
public void Dispose()
{
_html.ViewContext.Writer.Write(_html.EndControlGroup());
}
}
public static class ControlGroupExtensions
{
public static IHtmlString BeginControlGroupFor<T>(this HtmlHelper<T> html, Expression<Func<T, object>> modelProperty)
{
return BeginControlGroupFor(html, modelProperty, null);
}
public static IHtmlString BeginControlGroupFor<T>(this HtmlHelper<T> html, Expression<Func<T, object>> modelProperty, object htmlAttributes)
{
return BeginControlGroupFor(html, modelProperty,
HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
}
public static IHtmlString BeginControlGroupFor<T>(this HtmlHelper<T> html, Expression<Func<T, object>> modelProperty, IDictionary<string, object> htmlAttributes)
{
string propertyName = ExpressionHelper.GetExpressionText(modelProperty);
return BeginControlGroupFor(html, propertyName, null);
}
public static IHtmlString BeginControlGroupFor<T>(this HtmlHelper<T> html, string propertyName)
{
return BeginControlGroupFor(html, propertyName, null);
}
public static IHtmlString BeginControlGroupFor<T>(this HtmlHelper<T> html, string propertyName, object htmlAttributes)
{
return BeginControlGroupFor(html, propertyName, HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
}
public static IHtmlString BeginControlGroupFor<T>(this HtmlHelper<T> html, string propertyName, IDictionary<string, object> htmlAttributes)
{
var controlGroupWrapper = new TagBuilder("div");
controlGroupWrapper.MergeAttributes(htmlAttributes);
controlGroupWrapper.AddCssClass("control-group");
string partialFieldName = propertyName;
string fullHtmlFieldName =
html.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(partialFieldName);
if (!html.ViewData.ModelState.IsValidField(fullHtmlFieldName))
{
controlGroupWrapper.AddCssClass("error");
}
string openingTag = controlGroupWrapper.ToString(TagRenderMode.StartTag);
return MvcHtmlString.Create(openingTag);
}
public static IHtmlString EndControlGroup(this HtmlHelper html)
{
return MvcHtmlString.Create("</div>");
}
public static ControlGroup ControlGroupFor<T>(this HtmlHelper<T> html, Expression<Func<T, object>> modelProperty)
{
return ControlGroupFor(html, modelProperty, null);
}
public static ControlGroup ControlGroupFor<T>(this HtmlHelper<T> html, Expression<Func<T, object>> modelProperty, object htmlAttributes)
{
string propertyName = ExpressionHelper.GetExpressionText(modelProperty);
return ControlGroupFor(html, propertyName, HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
}
public static ControlGroup ControlGroupFor<T>(this HtmlHelper<T> html, string propertyName)
{
return ControlGroupFor(html, propertyName, null);
}
public static ControlGroup ControlGroupFor<T>(this HtmlHelper<T> html, string propertyName, object htmlAttributes)
{
return ControlGroupFor(html, propertyName, HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
}
public static ControlGroup ControlGroupFor<T>(this HtmlHelper<T> html, string propertyName, IDictionary<string, object> htmlAttributes)
{
html.ViewContext.Writer.Write(BeginControlGroupFor(html, propertyName, htmlAttributes));
return new ControlGroup(html);
}
}
public static class Alerts
{
public const string SUCCESS = "success";
public const string WARNING = "warning";
public const string ERROR = "error";
public const string INFORMATION = "info";
public static string[] ALL
{
get { return new[] { SUCCESS, WARNING, INFORMATION, ERROR }; }
}
}
}
ViewHelperExtensionClass
namespace BootstrapSupport
{
public static class DefaultScaffoldingExtensions
{
public static string GetControllerName(this Type controllerType)
{
return controllerType.Name.Replace("Controller", String.Empty);
}
public static string GetActionName(this LambdaExpression actionExpression)
{
return ((MethodCallExpression)actionExpression.Body).Method.Name;
}
public static PropertyInfo[] VisibleProperties(this IEnumerable Model)
{
var elementType = Model.GetType().GetElementType();
if (elementType == null)
{
elementType = Model.GetType().GetGenericArguments()[0];
}
return elementType.GetProperties().Where(info => info.Name != elementType.IdentifierPropertyName()).ToArray();
}
public static PropertyInfo[] VisibleProperties(this Object model)
{
return model.GetType().GetProperties().Where(info => info.Name != model.IdentifierPropertyName()).ToArray();
}
public static RouteValueDictionary GetIdValue(this object model)
{
var v = new RouteValueDictionary();
v.Add(model.IdentifierPropertyName(), model.GetId());
return v;
}
public static object GetId(this object model)
{
return model.GetType().GetProperty(model.IdentifierPropertyName()).GetValue(model, new object[0]);
}
public static string IdentifierPropertyName(this Object model)
{
return IdentifierPropertyName(model.GetType());
}
public static string IdentifierPropertyName(this Type type)
{
if (type.GetProperties().Any(info => info.PropertyType.AttributeExists<System.ComponentModel.DataAnnotations.KeyAttribute>()))
{
return
type.GetProperties().First(
info => info.PropertyType.AttributeExists<System.ComponentModel.DataAnnotations.KeyAttribute>())
.Name;
}
else if (type.GetProperties().Any(p => p.Name.Equals("id", StringComparison.CurrentCultureIgnoreCase)))
{
return
type.GetProperties().First(
p => p.Name.Equals("id", StringComparison.CurrentCultureIgnoreCase)).Name;
}
return "";
}
public static string GetLabel(this PropertyInfo propertyInfo)
{
var meta = ModelMetadataProviders.Current.GetMetadataForProperty(null, propertyInfo.DeclaringType, propertyInfo.Name);
return meta.GetDisplayName();
}
public static string ToSeparatedWords(this string value)
{
return Regex.Replace(value, "([A-Z][a-z])", " $1").Trim();
}
}
public static class PropertyInfoExtensions
{
public static bool AttributeExists<T>(this PropertyInfo propertyInfo) where T : class
{
var attribute = propertyInfo.GetCustomAttributes(typeof(T), false)
.FirstOrDefault() as T;
if (attribute == null)
{
return false;
}
return true;
}
public static bool AttributeExists<T>(this Type type) where T : class
{
var attribute = type.GetCustomAttributes(typeof(T), false).FirstOrDefault() as T;
if (attribute == null)
{
return false;
}
return true;
}
public static T GetAttribute<T>(this Type type) where T : class
{
return type.GetCustomAttributes(typeof(T), false).FirstOrDefault() as T;
}
public static T GetAttribute<T>(this PropertyInfo propertyInfo) where T : class
{
return propertyInfo.GetCustomAttributes(typeof(T), false).FirstOrDefault() as T;
}
public static string LabelFromType(Type @type)
{
var att = GetAttribute<DisplayNameAttribute>(@type);
return att != null ? att.DisplayName
: @type.Name.ToSeparatedWords();
}
public static string GetLabel(this Object Model)
{
return LabelFromType(Model.GetType());
}
public static string GetLabel(this IEnumerable Model)
{
var elementType = Model.GetType().GetElementType();
if (elementType == null)
{
elementType = Model.GetType().GetGenericArguments()[0];
}
return LabelFromType(elementType);
}
}
//public static class HtmlHelperExtensions
//{
// public static MvcHtmlString TryPartial(this HtmlHelper helper, string viewName, object model)
// {
// try
// {
// return helper.Partial(viewName, model);
// }
// catch (Exception)
// {
// }
// return MvcHtmlString.Empty;
// }
//}
}
和_alert部分视图
@using BootstrapSupport
@if (TempData.ContainsKey(Alerts.WARNING))
{
<div class="alert alert-block">
<a class="close" data-dismiss="alert" href="#">x</a>
<h4 class="toast-title">Attention!</h4>
@TempData[Alerts.WARNING]
</div>
}
@foreach (string key in Alerts.ALL.Except(new[] { Alerts.WARNING }))
{
if (TempData.ContainsKey(key))
{
<div class="toast toast-top-full-width toast-key">
<button type="button" class="toast-close-button" data-dismiss="alert">x</button>
@TempData[key]
</div>
}
}
毕竟，我可以直接从控制器发送警报消息：
它有效！
例如
public ActionResult Test()
{
Success("Person was successfully added to your addressbook");
}
上面的代码将导致这一点
但它只是显示为内容块。不像我预期的那样工作，因为它只是出现在视图中，没有效果，什么都没有。我希望它像在这个站点Toastr中一样工作。
我猜我必须在我的_alert视图中的某个地方实现 javascript 并获取消息和类型（成功，错误，...），然后使用 javascript 对其进行咆哮，使其表现出应有的行为。但我对此了解不多。
像下面这样的东西？这只是想法，因为我缺乏 Javascript 和 jquery 的知识，我无法让它工作
@*if (TempData.ContainsKey(key))
{
<div class="toastMessageHolder" style="display: none">
<div class="toastMessage">@TempData[key]</div>
<div class="toastMessageType">@key</div>
</div>
if($(".toastMessageHolder"))
{
//loop all toastMessageHolders
$(".toastMessageHolder").foreach(function(){
var message = $(".toastMessage", this).html();
var messageType = $(".toastMessageType", this).html();
});
//feed this parameters to javascript
}*@
有人可以帮助我如何使控制器的咆哮行为如Toastr示例中所述吗？
如果我没有实现从控制器发送消息来查看我必须从任何正常视图中咆哮，这就是我使用 toastr 的方式：
function foo(response) {
if (response.SomeTest) {
toastr.error(response.ErrorMessage, "Error");
}
else {
$(@Html.IdFor(m=>m.abc)).val('');
}
};
Asp.Net MVC 版本：5.1.1
使用的咆哮包：Toastr