Question

我有这些方法：

 public static MvcHtmlString GetQTip(this HtmlHelper htmlHelper, string propertyName, string message, string propertyNameOverride = "", QTipPosition position = QTipPosition.Right, bool includeEvents = true, string title = "")
{
  string qtipPosition = String.Empty;

  switch (position)
  {
    case QTipPosition.Right:
      qtipPosition = "my: 'left center', at: 'right center'";
      break;
    case QTipPosition.Left:
      qtipPosition = "my: 'right center', at: 'left center'";
      break;
    case QTipPosition.Top:
      qtipPosition = "my: 'top middle', at: 'bottom middle'";
      break;
    case QTipPosition.Bottom:
      qtipPosition = "my: 'bottom middle', at: 'top middle'";
      break;
  }

  if (!String.IsNullOrWhiteSpace(propertyNameOverride))
    propertyName = propertyNameOverride;

  if (String.IsNullOrWhiteSpace(title))
    title = htmlHelper.Resource(Resources.Global.Title.Information);

  StringBuilder sb = new StringBuilder();
  sb.Append(String.Concat("$('#", propertyName, "').removeData('qtip').qtip({content: {text:"));
  sb.Append(String.Concat("'", message, "', title: { text: '", title, "', button: false }}, position: { ", qtipPosition, " }"));

  if (includeEvents)
    sb.Append(", show: { event: 'focus mouseenter', solo: true, ready: false }, hide: 'blur'");

  sb.Append(", style: { classes: 'ui-tooltip-shadow ui-tooltip-yellow' } });");

  return new MvcHtmlString(sb.ToString());
}

我该如何称呼它：

 <%: Html.GetQTip("training-module-name-container-" + module.CategoryId +"-" + module.TrainingModuleId, trainingModulePointsHintText, Zinc.Web.Extensions.QTipPosition.Bottom, true, Html.Resource(Resources.Training.Module.Completed.View.TrainingModulePoints))%>

我只想要这些参数谢谢

Answer 1

问题是你不能在中间遗漏一个参数。您可以使用默认参数，但您遗漏的参数必须是列表中的最后一个。有关MSDN的说明，请参阅here。

要解决您的问题，您可以选择以下几种方法：

1）使propertyNameOverride参数成为函数定义中的最后一个参数，如下所示：

public static MvcHtmlString GetQTip(this HtmlHelper htmlHelper, string propertyName, string message, QTipPosition position = QTipPosition.Right, bool includeEvents = true, string title = "", string propertyNameOverride = "") { 
    // do stuff
}

然后你可以毫无问题地把它留下来。

2）使用参数，但只需将默认值放在：

中

<%: Html.GetQTip("training-module-name-container-" + module.CategoryId +"-" + module.TrainingModuleId, trainingModulePointsHintText, "", Zinc.Web.Extensions.QTipPosition.Bottom, true, Html.Resource(Resources.Training.Module.Completed.View.TrainingModulePoints))%>

3）只用你想要的参数写另一个函数，然后用“空”位置的默认参数调用完整函数：

public static MvcHtmlString GetQTip(this HtmlHelper htmlHelper, string propertyName, string message, QTipPosition position = QTipPosition.Right, bool includeEvents = true, string title = "", string propertyNameOverride = "") { 
    return htmlHelper.GetQTip("training-module-name-container-" + module.CategoryId +"-" + module.TrainingModuleId, trainingModulePointsHintText, "", Zinc.Web.Extensions.QTipPosition.Bottom, true, Html.Resource(Resources.Training.Module.Completed.View.TrainingModulePoints))%>
}

方法重载不确定如何

1 个答案: