private static string GenerateLinks(this HtmlHelper helper, GridPagerProperties properties)
{
TagBuilder pagerDiv = new TagBuilder("div") { };
pagerDiv.MergeAttributes(new Dictionary<string, string> { { "class", "pager" } });
TagBuilder ulDiv = new TagBuilder("div");
ulDiv.MergeAttributes(new Dictionary<string, string> { { "class", "pagerItem" } });
TagBuilder ul = new TagBuilder("ul");
if (properties.PageCount > 1)
{
//create the previous tag
if (properties.CurrentPageIndex > 1)
{
properties.LinkText = "<";
properties.RefPageIndex = properties.CurrentPageIndex - 1;
//add previous tag
ul.InnerHtml += GetNavItem(helper, properties).ToString();
}
for (int page = 1; page <= properties.PageCount; page++)
{
//create paging tags
properties.LinkText = page.ToString();
properties.RefPageIndex = page;
//create tag
TagBuilder tag = GetNavItem(helper, properties);
if (page == properties.CurrentPageIndex)
{
tag.Attributes.Add("class", "selected");
}
TagBuilder label = new TagBuilder("label")
{
InnerHtml = HttpUtility.HtmlEncode("...")
};
label.MergeAttributes(new Dictionary<string, string> { { "text", "..." } });
if (properties.PageCount > 11)
{
if (properties.CurrentPageIndex < 7)
{
//beginning
if (page < 9 || ((properties.PageCount - page) < 3))
ul.InnerHtml += tag.ToString();
else if (page == 10)
ul.InnerHtml += label.ToString();
}
else if (properties.CurrentPageIndex >= (properties.PageCount - 7))
{
//end
if (page < 2 || (page >= properties.PageCount - 9))
ul.InnerHtml += tag.ToString();
else if (page == 2)
ul.InnerHtml += label.ToString();
}
else
{
//middle
if (page < 2)
ul.InnerHtml += tag.ToString();
else if (page == 2)
ul.InnerHtml += label.ToString();
else if ((page >= (properties.CurrentPageIndex - 4)) && (page <= (properties.CurrentPageIndex + 4)))
ul.InnerHtml += tag.ToString();
else if (page == properties.CurrentPageIndex + 5)
ul.InnerHtml += label.ToString();
else if (page >= properties.PageCount - 2)
ul.InnerHtml += tag.ToString();
}
}
else
ul.InnerHtml += tag.ToString();
}
//create the next tag
if (properties.CurrentPageIndex < properties.PageCount)
{
properties.LinkText = ">";
properties.RefPageIndex = properties.CurrentPageIndex + 1;
//add previous tag
ul.InnerHtml += GetNavItem(helper, properties).ToString();
}
}
ulDiv.InnerHtml += ul;
pagerDiv.InnerHtml += ulDiv;
// create the total items tag
TagBuilder countDiv = new TagBuilder("div")
{
InnerHtml = String.Format("{0} items", properties.RecordCount)
};
countDiv.MergeAttributes(new Dictionary<string, string> { { "class", "totalrecords" }, { "id", "grid_totalrecords" } });
pagerDiv.InnerHtml += countDiv.ToString();
return pagerDiv.ToString();
}
public static string GridPagerWithoutAjax(this HtmlHelper helper, GridPagerProperties properties)
{
return GenerateLinks(helper, properties);
}
public static string GridPager(this AjaxHelper helper, GridPagerProperties properties)
{
return GenerateLinks(helper, properties);
}
public static TagBuilder GetNavItem(this HtmlHelper html, GridPagerProperties properties)
{
UrlHelper urlHelper = ((Controller)html.ViewContext.Controller).Url;
string url = "";
url = urlHelper.Action(properties.ActionName, properties.Controller,
new { LoaiAnh = properties.TransferValue, page = properties.RefPageIndex });
TagBuilder actionLink = new TagBuilder("a");
actionLink.SetInnerText(properties.LinkText);
actionLink.MergeAttributes(new Dictionary<string, string> { { "href", url } });
TagBuilder linkTag = new TagBuilder("li")
{
InnerHtml = actionLink.ToString()
};
return linkTag;
}
public static TagBuilder GetNavItem(this AjaxHelper ajax, GridPagerProperties properties)
{
MvcHtmlString htmlTemplate = null;
switch (properties.TypeOfParam)
{
case EnumTypeOfParam.DEFAULT:
htmlTemplate = ajax.ActionLink(properties.LinkText, properties.ActionName, properties.Controller,
new { page = properties.RefPageIndex },
new AjaxOptions
{
UpdateTargetId = properties.UpdateTargetId
});
break;
case EnumTypeOfParam.ANH:
htmlTemplate = ajax.ActionLink(properties.LinkText, properties.ActionName, properties.Controller,
new { page = properties.RefPageIndex, loaianh = properties.TransferValue },
new AjaxOptions
{
UpdateTargetId = properties.UpdateTargetId
});
break;
}
TagBuilder linkTag = new TagBuilder("li")
{
InnerHtml = htmlTemplate.ToHtmlString()
};
return linkTag;
}
