/// <summary>
/// 建立排序標題
/// </summary>
/// <param name="helper"></param>
/// <param name="actionName">Action方法</param>
/// <param name="query">查詢參數</param>
/// <param name="propertyName">屬性名稱</param>
/// <param name="displayName">顯示名稱</param>
/// <returns></returns>
public static MvcHtmlString BuildSortLink(this HtmlHelper helper,
string actionName, QueryOption query, string propertyName, string displayName)
{
var urlHelper = new UrlHelper(helper.ViewContext.RequestContext);
var isCurrentField = propertyName == query.SortField;
StringBuilder classBuilder = new StringBuilder("glyphicon glyphicon-sort");
if (isCurrentField)
{
classBuilder.Append("-by-alphabet");
if (query.SortOrder == SortOrder.DESC)
{
classBuilder.Append("-alt");
}
}
var outputQuery = query.Clone();
outputQuery.SortField = propertyName;
outputQuery.SortOrder = query.SortOrder == SortOrder.ASC ? SortOrder.DESC : SortOrder.ASC;
return(new MvcHtmlString(
$"<a href=\"{urlHelper.Action(actionName, outputQuery)}\">" +
$"{displayName} <span class=\"{classBuilder}\"></span>" +
"</a>"));
}
public static QueryOption Page(this QueryOption queryOption, int page)
{
var option = queryOption.Clone();
option.CurrentPage = page;
return(option);
}