/// <summary>
/// 访问并呈现当前标签实例。
/// </summary>
/// <param name="context">当前HTML标签上下文，包含当前HTML相关信息。</param>
/// <param name="output">当前标签输出实例，用于呈现标签相关信息。</param>
public override void Process(TagHelperContext context, TagHelperOutput output)
{
Data = Data ?? ViewContext.ViewData.Model as IPageEnumerable;
if (Data == null || Data.Pages == 0)
{
output.SuppressOutput();
return;
}
if (context.AllAttributes.ContainsName(HrefAttributeName))
{
_createAnchor = page =>
{
var tagBuilder = new TagBuilder("a");
tagBuilder.MergeAttribute("href", Href.Replace("$page;", page.ToString()));
return(tagBuilder);
};
}
else
{
IDictionary <string, object> routeValues = new Dictionary <string, object>(StringComparer.OrdinalIgnoreCase);
if (_routeValues != null && _routeValues.Count > 0)
{
foreach (var routeValue in _routeValues)
{
routeValues.Add(routeValue.Key, routeValue.Value);
}
}
if (Area != null)
{
routeValues["area"] = Area;
}
if (Route == null)
{
_createAnchor = page =>
{
routeValues["page"] = page;
return(Generator.GenerateActionLink(
ViewContext,
linkText: string.Empty,
actionName: Action,
controllerName: Controller,
protocol: Protocol,
hostname: Host,
fragment: Fragment,
routeValues: routeValues,
htmlAttributes: null));
};
}
else
{
_createAnchor = page =>
{
routeValues["page"] = page;
return(Generator.GenerateRouteLink(
ViewContext,
linkText: string.Empty,
routeName: Route,
protocol: Protocol,
hostName: Host,
fragment: Fragment,
routeValues: routeValues,
htmlAttributes: null));
};
}
}
var builder = new TagBuilder("ul");
builder.AddCssClass("pagination");
if (!Border)
{
builder.AddCssClass("borderless");
}
int endIndex;
var startIndex = Cores.GetRange(Data.Page, Data.Pages, Factor, out endIndex);
if (Data.Page > 1)
{
builder.InnerHtml.AppendHtml(CreateLink(Data.Page - 1, Resources.LastPage, title: Resources.LastPage));
}
if (startIndex > 1)
{
builder.InnerHtml.AppendHtml(CreateLink(1, "1"));
}
if (startIndex > 2)
{
builder.InnerHtml.AppendHtml("<li><span>…</span></li>");
}
for (int i = startIndex; i < endIndex; i++)
{
builder.InnerHtml.AppendHtml(CreateLink(i, i.ToString(), "active"));
}
if (endIndex < Data.Pages)
{
builder.InnerHtml.AppendHtml("<li><span>…</span></li>");
}
if (endIndex <= Data.Pages)
{
builder.InnerHtml.AppendHtml(CreateLink(Data.Pages, Data.Pages.ToString()));
}
if (Data.Page < Data.Pages)
{
builder.InnerHtml.AppendHtml(CreateLink(Data.Page + 1, Resources.NextPage, title: Resources.NextPage));
}
output.TagName = "ul";
output.MergeAttributes(builder);
output.Content.AppendHtml(builder.InnerHtml);
}
/// <summary>
/// 访问并呈现当前标签实例。
/// </summary>
/// <param name="context">当前HTML标签上下文，包含当前HTML相关信息。</param>
/// <param name="output">当前标签输出实例，用于呈现标签相关信息。</param>
public override void Process(TagHelperContext context, TagHelperOutput output)
{
Data = Data ?? ViewContext.ViewData.Model as IPageEnumerable;
if (Data == null || Data.Pages == 0)
{
output.SuppressOutput();
return;
}
if (context.AllAttributes.ContainsName(HrefAttributeName))
{
_createAnchor = page =>
{
var tagBuilder = new TagBuilder("a");
tagBuilder.MergeAttribute("href", Href.Replace("$page;", page.ToString()));
return(tagBuilder);
};
}
else
{
_createAnchor = GenerateActionLink();
}
var builder = new TagBuilder("ul");
builder.AddCssClass("pagination");
if (!Border)
{
builder.AddCssClass("borderless");
}
int endIndex;
var startIndex = Cores.GetRange(Data.Page, Data.Pages, Factor, out endIndex);
if (Data.Page > 1)
{
builder.InnerHtml.AppendHtml(CreateLink(Data.Page - 1, Resources.LastPage, Resources.LastPage));
}
if (startIndex > 1)
{
builder.InnerHtml.AppendHtml(CreateLink(1, "1"));
}
if (startIndex > 2)
{
builder.InnerHtml.AppendHtml("<li><span>…</span></li>");
}
for (int i = startIndex; i < endIndex; i++)
{
builder.InnerHtml.AppendHtml(CreateLink(i, i.ToString()));
}
if (endIndex < Data.Pages)
{
builder.InnerHtml.AppendHtml("<li><span>…</span></li>");
}
if (endIndex <= Data.Pages)
{
builder.InnerHtml.AppendHtml(CreateLink(Data.Pages, Data.Pages.ToString()));
}
if (Data.Page < Data.Pages)
{
builder.InnerHtml.AppendHtml(CreateLink(Data.Page + 1, Resources.NextPage, Resources.NextPage));
}
output.TagName = "ul";
output.MergeAttributes(builder);
output.Content.AppendHtml(builder.InnerHtml);
}