public static MvcHtmlString PageLinks(this HtmlHelper html,
PagingInfo pagingInfo,
Func<int, string> pageUrl)
{
var result = new StringBuilder();
for (int i = 1; i <= pagingInfo.TotalPages; i++)
{
var tag = new TagBuilder("a");
tag.MergeAttribute("href", pageUrl(i));
// Func<int, string>
// int here is just the input type, 1 parameter
// string is what is returned.
// <a href="computedFunc pageUrl">
tag.InnerHtml = i.ToString();
//i
if (i == pagingInfo.CurrentPage)
{
tag.AddCssClass("selected");
tag.AddCssClass("btn-primary");
}
tag.AddCssClass("btn btn-default");
result.Append(tag.ToString());
}
return MvcHtmlString.Create(result.ToString());
}
public static MvcHtmlString PageLinks(this HtmlHelper html, PagingInfo pagingInfo, Func<int, string> pageUrl)
{
StringBuilder result = new StringBuilder();
for (int i = 1; i <= pagingInfo.TotalPages; i++) {
TagBuilder tag = new TagBuilder("a"); // Construct an <a> tag
tag.MergeAttribute("href", pageUrl(i));
tag.InnerHtml = i.ToString();
if (i == pagingInfo.CurrentPage)
tag.AddCssClass("selected");
result.Append(tag.ToString());
}
return MvcHtmlString.Create(result.ToString());
}
public void Can_Generate_Page_Links()
{
HtmlHelper myHelper = null;
PagingInfo pagingInfo = new PagingInfo
{
CurrentPage = 2,
TotalItems = 28,
ItemsPerPage = 10
};
Func<int, string> pageUrlDelegate = i => "Page" + i;
MvcHtmlString result = myHelper.PageLinks(pagingInfo, pageUrlDelegate);
Assert.AreEqual(@"<a class=""btn btn-default"" href=""Page1"">1</a><a class=""btn btn-primary selected"" href=""Page2"">2</a><a class=""btn btn-default"" href=""Page3"">3</a>", result.ToString());
}
public void PagingHelpers_Can_Genrate_PagingLinks()
{
//Arrange
HtmlHelper myhelper = null; // TODO: Initialize to an appropriate value
PagingInfo pagingInfo = new PagingInfo { CurrentPage = 2, TotalItems = 30, ItemsPerPage = 10 };
Func<int, string> pageUrlDelegate = (x=>"Page"+x); // TODO: Initialize to an appropriate value
//Act
MvcHtmlString result = myhelper.PageLinks(pagingInfo, pageUrlDelegate);
//Assert
string expected = @"<a href=""Page1"">1</a><a class=""selected"" href=""Page2"">2</a><a href=""Page3"">3</a>";
Assert.AreEqual(result.ToString(), expected);
}
public static MvcHtmlString PageLinks(this HtmlHelper html, PagingInfo pagingInfo, Func<int, string> pageUrl)
{
var result = new StringBuilder();
for (var index = 1; index <= pagingInfo.TotalPages; index++)
{
var tag = new TagBuilder("a");
tag.MergeAttribute("href", pageUrl(index));
tag.InnerHtml = index.ToString();
if (index == pagingInfo.CurrentPage)
tag.AddCssClass("selected");
result.Append(tag);
}
return MvcHtmlString.Create(result.ToString());
}
public void Can_Generate_Links_To_Other_Pages()
{
HtmlHelper html = null;
PagingInfo pagingInfo = new PagingInfo
{
CurrentPage =2, TotalItems=28, ItemPerPage=10
};
Func<int, string> pageUrl = i => "Page" + i.ToString();
MvcHtmlString result = html.PageLinks(pagingInfo, pageUrl);
result.ToString().ShouldEqual(@"<a href=""Page1"">1</a>
<a class=""selected"" href=""Page2"">2</a>
<a href=""Page3"">3</a>
");
}
public static MvcHtmlString PageLinks(this HtmlHelper helper, PagingInfo info, Func<int, string> pageUrlFunction )
{
var result = new StringBuilder();
for (int i = 1; i <= info.TotalPages; i++)
{
var tag = new TagBuilder("a");
tag.MergeAttribute("href", pageUrlFunction(i));
tag.InnerHtml = i.ToString();
if(i == info.CurrentPage)
{
tag.AddCssClass("selected");
}
result.Append(tag.ToString());
}
return MvcHtmlString.Create(result.ToString());
}
public static MvcHtmlString PageLinks(this HtmlHelper html, PagingInfo pagingInfo, Func<int, string> pageUrl)
{
StringBuilder pageLinkResult = new StringBuilder();
for (int pageNumber = 1; pageNumber <= pagingInfo.TotalPages; pageNumber++)
{
TagBuilder tagResult = new TagBuilder("a");
tagResult.MergeAttribute("href", pageUrl(pageNumber));
tagResult.InnerHtml = pageNumber.ToString();
if (pageNumber == pagingInfo.CurrentPage)
tagResult.AddCssClass("selected");
pageLinkResult.Append(tagResult.ToString());
}
return MvcHtmlString.Create(pageLinkResult.ToString());
}
public static MvcHtmlString PageLinks(this HtmlHelper html, PagingInfo pagingInfo, Func<int, string> pageUrl)
{
var stringBuilder = new StringBuilder();
for (int i = 1; i <= pagingInfo.TotalPages; i++)
{
var tagBuilder = new TagBuilder("a");
tagBuilder.MergeAttribute("href", pageUrl(i));
tagBuilder.InnerHtml = i.ToString();
if (i == pagingInfo.CurrentPage)
{
tagBuilder.AddCssClass("selected");
}
stringBuilder.Append(tagBuilder);
}
return MvcHtmlString.Create(stringBuilder.ToString());
}
public static MvcHtmlString PageLinks(this HtmlHelper html, PagingInfo pagingInfo, Func<int, string> pageUrl)
{
var result = new StringBuilder();
for (var i = 1; i <= pagingInfo.TotalPages; i++)
{
var tag = new TagBuilder("a");
tag.MergeAttribute("href", pageUrl(i));
// ReSharper disable SpecifyACultureInStringConversionExplicitly
tag.InnerHtml = i.ToString();
// ReSharper restore SpecifyACultureInStringConversionExplicitly
if (i == pagingInfo.CurrentPage)
{
tag.AddCssClass("selected");
}
result.Append(tag);
}
return MvcHtmlString.Create(result.ToString());
}
public void CanGeneratePageLinks()
{
HtmlHelper helper = null;
var pagingInfo = new PagingInfo
{
CurrentPage = 2,
TotalItems = 28,
ItemsPerPage = 10
};
Func<int, string> pageUrlDelegate = i => "Page " + i;
MvcHtmlString result = helper.PageLinks(pagingInfo, pageUrlDelegate);
var expected = @"<a href=""Page 1"">1</a>" +
@"<a class=""selected"" href=""Page 2"">2</a>" +
@"<a href=""Page 3"">3</a>";
Assert.AreEqual(expected, result.ToString());
}
public void Can_Generate_Page_Links()
{
// Arrange
HtmlHelper myHelper = null;
PagingInfo pagingInfo = new PagingInfo {
CurrentPage = 2,
TotalItems = 28,
ItemsPerPage = 10
};
Func<Int32, String> pageUrlDelegate = i => "Page" + i;
// Act
MvcHtmlString result = myHelper.PageLinks(pagingInfo, pageUrlDelegate);
// Assert
Assert.AreEqual(@"<a href=""Page1"">1</a><a class=""selected"" href=""Page2"">2</a><a href=""Page3"">3</a>",
result.ToString());
}
public void Can_Generate_Page_Links()
{
// Arrange - define an HTML helper - we need to do this
// in order to apply the extension method
HtmlHelper myHelper = null;
// Arrange - create PagingInfo data
PagingInfo pagingInfo = new PagingInfo
{
CurrentPage = 2,
TotalItems = 28,
ItemsPerPage = 10
};
// Arrange - set up the delegate using a lambda expression
Func<int, string> pageUrlDelegate = i => "Page" + i;
// Act
MvcHtmlString result = myHelper.PageLinks(pagingInfo, pageUrlDelegate);
// Assert
Assert.AreEqual(result.ToString(), @"<a href=""Page1"">1</a><a class=""selected"" href=""Page2"">2</a><a href=""Page3"">3</a>");
}
public static MvcHtmlString PageLinks(this HtmlHelper html, PagingInfo pagingInfo, Func<int, string> pageUrl)
{
var result = new StringBuilder();
for (var i = 1; i <= pagingInfo.TotalPage; i++)
{
var tag = new TagBuilder("a");
tag.MergeAttribute("href", pageUrl(i));
tag.InnerHtml = i.ToString();
if (i == pagingInfo.CurrentPage)
{
tag.AddCssClass("selected");
tag.AddCssClass("btn-primary");
}
tag.AddCssClass("btn btn-default");
result.Append(tag);
}
return MvcHtmlString.Create(result.ToString());
}
public static MvcHtmlString PageLinks(this HtmlHelper html, PagingInfo pagingInfo, Func<int, string> pageUrl)
{
StringBuilder resultHtml = new StringBuilder();
StringBuilder liHtml = new StringBuilder();
double tempTotalPages = pagingInfo.TotalItems / pagingInfo.ItemsPerPage;
double totalPages = Math.Floor(tempTotalPages);
//Final HTML markup
//<ul class="pagination">
// <li><a href="Page1">1</a>
// <li><a href="Page2">2</a>
//</ul>
//Create <ul></ul> tag
TagBuilder ulTag = new TagBuilder("ul");
ulTag.AddCssClass("pagination");
for (int i = 1; i <= totalPages+1; i++)
{
StringBuilder aHtml = new StringBuilder();
//Create <a></a> tag
TagBuilder aTag = new TagBuilder("a");
aTag.MergeAttribute("href",pageUrl(i));
aTag.InnerHtml = i.ToString();
//create li tag and add <a> tag into it
TagBuilder liTag = new TagBuilder("li");
liTag.InnerHtml = aTag.ToString();
if (i == pagingInfo.CurrentPage)
{
liTag.AddCssClass("active");
}
liHtml.Append(liTag.ToString());
}
ulTag.InnerHtml = liHtml.ToString();
return MvcHtmlString.Create(ulTag.ToString());
}
public void PageLinks_WhenGivenPagingInformationAndHowToGenerateLinks_ShouldGenerateASeriesOfLinksForAllPages()
{
// Arrange
// In order to test an extension method we need to create a null instance of the class the
// extension method applies to
HtmlHelper helper = null;
PagingInfo pagingInfo = new PagingInfo
{
CurrentPage = 2,
TotalItems = 28,
ItemsPerPage = 10
};
Func<int, string> pageUrlDelegate = i => "Page" + i;
// Act
MvcHtmlString result = helper.PageLinks(pagingInfo, pageUrlDelegate);
// Assert
Assert.AreEqual(expected: @"<a href=""Page1"">1</a>" +
@"<a class=""selected"" href=""Page2"">2</a>" +
@"<a href=""Page3"">3</a>",
actual: result.ToString());
}
public static MvcHtmlString PageLinks(this HtmlHelper html,
PagingInfo pagingInfo,
Func<int, string> pageUrl)
{
StringBuilder result = new StringBuilder();
for (int i = 1; i <= pagingInfo.TotalPages; i++)
{
// Build an anchor tag
TagBuilder tag = new TagBuilder("a");
tag.MergeAttribute("href", pageUrl(i));
tag.InnerHtml = i.ToString();
if (i == pagingInfo.CurrentPage)
tag.AddCssClass("selected");
// Append it to the string builder
result.AppendLine(tag.ToString());
}
// Feed the string builder to the MvcHtmlString static method
// to return an MvcHtmlString
return MvcHtmlString.Create(result.ToString());
}
public static MvcHtmlString PageLinks(this HtmlHelper html,
PagingInfo pagingInfo,
Func<int, string> pageUrl)
{
StringBuilder result = new StringBuilder();
TagBuilder ul = new TagBuilder("ul");
ul.AddCssClass("pagination");
for (int i = 1; i <= pagingInfo.TotalPages; i++)
{
TagBuilder li = new TagBuilder("li");
TagBuilder a = new TagBuilder("a");
a.MergeAttribute("href", pageUrl(i));
a.InnerHtml = i.ToString();
if (i == pagingInfo.CurrentPage)
{
li.AddCssClass("active");
}
li.InnerHtml = a.ToString();
result.Append(li.ToString());
}
ul.InnerHtml = result.ToString();
return MvcHtmlString.Create(ul.ToString());
}