/// <summary>
/// Returns a <see cref="T:System.Collections.Specialized.NameValueCollection" /> containing the settings for the rendering extension.
/// </summary>
NameValueCollection ISettings.GetSettings()
{
var settings = new NameValueCollection();
if (!EmbedFonts)
{
settings["EmbedFonts"] = bool.FalseString;
}
if (StartPage != 0)
{
settings["StartPage"] = StartPage.ToString(CultureInfo.InvariantCulture);
}
if (EndPage != -1)
{
settings["EndPage"] = EndPage.ToString(CultureInfo.InvariantCulture);
}
if (Target != TargetDeviceKind.Export)
{
settings["Target"] = Target.ToString();
}
return(settings);
}
/// <summary>
/// 生成页码项
/// </summary>
public void CreatePaginationItems()
{
var items = new List <PaginationItem>();
//添加“上一页”按钮
items.Add(new PaginationItem
{
Text = PreviousText,
TargetPage = CurrentPage - 1,
Disabled = CurrentPage == StartPage
});
//如果总页数不超过显示页数限制，则直接添加所有中间页
if (EndPage - StartPage < ShowPageLimit)
{
items.AddRange(createPagenationItmeOfRange(StartPage, EndPage, CurrentPage));
}
else
{
//添加第一页
items.Add(new PaginationItem
{
Text = StartPage.ToString(),
TargetPage = StartPage,
Active = CurrentPage == StartPage
});
int limitHalf = ShowPageLimit / 2;
if (CurrentPage - StartPage <= limitHalf) //页码较为靠前，则添加前几页
{
items.AddRange(createPagenationItmeOfRange(StartPage + 1, StartPage + ShowPageLimit - 3, CurrentPage));
items.Add(new PaginationItem
{
Text = "···",
TargetPage = null,
Disabled = true
});
}
else if (EndPage - CurrentPage <= limitHalf) //页码较为靠后，则添加后几页
{
items.Add(new PaginationItem
{
Text = "···",
TargetPage = null,
Disabled = true
});
items.AddRange(createPagenationItmeOfRange(EndPage - ShowPageLimit + 3, EndPage - 1, CurrentPage));
}
else
{
int middleHalf = (ShowPageLimit - 4) / 2;
items.Add(new PaginationItem
{
Text = "···",
TargetPage = null,
Disabled = true
});
items.AddRange(createPagenationItmeOfRange(CurrentPage - middleHalf, CurrentPage + middleHalf, CurrentPage));
items.Add(new PaginationItem
{
Text = "···",
TargetPage = null,
Disabled = true
});
}
//添加最后一页
items.Add(new PaginationItem
{
Text = EndPage.ToString(),
TargetPage = EndPage,
Active = CurrentPage == EndPage
});
}
//添加“下一页”按钮
items.Add(new PaginationItem
{
Text = NextText,
TargetPage = CurrentPage + 1,
Disabled = CurrentPage == EndPage
});
this.Items = items;
}