public FluentTagBuilder(string tagName, TagRenderMode renderMode = TagRenderMode.Normal, FluentTagBuilder parent = null)
{
this.tagBuilder = new TagBuilder(tagName);
this.renderMode = renderMode;
this.parent = parent;
this.stringBuilder = new StringBuilder();
}
//TODO: Test
public static MvcHtmlString Table <T>(this HtmlHelper html, IEnumerable <T> items, object htmlAttributes = null)
{
var builder = new FluentTagBuilder("table")
.MergeAttributes(htmlAttributes)
.StartTag("thead")
.StartTag("tr");
var properties = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);
foreach (var property in properties)
{
builder = builder.StartTag("th").SetInnerText(property.Name).EndTag();
}
builder
.EndTag() // </tr>
.EndTag() // </thead>
.StartTag("tbody");
foreach (var item in items)
{
builder = builder.StartTag("tr");
foreach (var property in properties)
{
string value = property.GetValue(item).ToString();
builder = builder.StartTag("td").SetInnerText(value).EndTag();
}
builder = builder.EndTag(); // </tr>
}
builder = builder.EndTag(); // </tbody>
return(MvcHtmlString.Create(builder.ToString()));
}
public static MvcHtmlString HelpText(this HtmlHelper html, string helpText, object htmlAttributes = null)
{
var tagBuilder = new FluentTagBuilder("p")
.AddCssClass("help-block")
.MergeAttributes(htmlAttributes)
.SetInnerHtml(helpText);
return(new MvcHtmlString(tagBuilder.ToString()));
}
public static MvcHtmlString HelpTextFor <TModel, TProperty>(this HtmlHelper <TModel> html, Expression <Func <TModel, TProperty> > expression, object htmlAttributes = null)
{
var memberExpression = expression.Body as MemberExpression;
var propertyInfo = (memberExpression.Member as PropertyInfo);
var attribute = propertyInfo.GetCustomAttributes().OfType <LocalizedHelpTextAttribute>().FirstOrDefault();
if (attribute == null)
{
return(MvcHtmlString.Empty);
}
var tagBuilder = new FluentTagBuilder("p")
.AddCssClass("help-block")
.MergeAttributes(htmlAttributes)
.SetInnerHtml(attribute.HelpText);
return(new MvcHtmlString(tagBuilder.ToString()));
}
public static MvcHtmlString CheckBoxListFor <TModel, TProperty>(
this HtmlHelper <TModel> html,
Expression <Func <TModel, IEnumerable <TProperty> > > expression,
IEnumerable <SelectListItem> selectList,
byte numberOfColumns = 1,
object labelHtmlAttributes = null,
object checkboxHtmlAttributes = null) where TModel : class
{
string htmlFieldName = ExpressionHelper.GetExpressionText(expression);
string fullHtmlFieldName = html.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(htmlFieldName);
string fullHtmlFieldId = html.ViewData.TemplateInfo.GetFullHtmlFieldId(htmlFieldName);
var func = expression.Compile();
var selectedValues = func(html.ViewData.Model);
var values = new List <string>();
if (selectedValues != null)
{
values.AddRange(selectedValues.Select(x => Convert.ToString(x)));
}
if (selectList == null)
{
throw new ArgumentNullException("selectList");
}
int index = 0;
var sb = new StringBuilder();
bool groupByCategory = (selectList.First() is ExtendedSelectListItem);
if (groupByCategory)
{
var items = selectList.Cast <ExtendedSelectListItem>().ToList();
var groups = items.GroupBy(x => x.Category);
foreach (var @group in groups)
{
sb.AppendFormat("<strong>{0}</strong>", group.Key);
foreach (var item in group)
{
var isChecked = values.Contains(item.Value);
var tagBuilder = new FluentTagBuilder("label")
.MergeAttribute("for", fullHtmlFieldName)
.MergeAttributes(labelHtmlAttributes)
.StartTag("input", TagRenderMode.SelfClosing)
.MergeAttribute("type", "checkbox")
.MergeAttribute("name", fullHtmlFieldName)
.MergeAttribute("id", fullHtmlFieldId + "_" + index)
.MergeAttribute("value", item.Value);
if (isChecked)
{
tagBuilder = tagBuilder.MergeAttribute("checked", "checked");
}
if (checkboxHtmlAttributes != null)
{
tagBuilder = tagBuilder.MergeAttributes(checkboxHtmlAttributes);
}
tagBuilder = tagBuilder.EndTag(); //end checkbox
tagBuilder = tagBuilder
.StartTag("span")
.SetInnerText(item.Text)
.EndTag();
sb.Append(tagBuilder.ToString());
index++;
}
}
}
else
{
var rows = (int)Math.Ceiling((selectList.Count() * 1d) / numberOfColumns);
var columnWidth = (int)Math.Ceiling(12d / numberOfColumns);
for (var i = 0; i < numberOfColumns; i++)
{
var items = selectList.Skip(i * rows).Take(rows);
sb.AppendFormat("<div class=\"col-md-{0}\">", columnWidth);
foreach (var item in items)
{
var isChecked = values.Contains(item.Value);
var tagBuilder = new FluentTagBuilder("label")
.MergeAttribute("for", fullHtmlFieldName)
.MergeAttributes(labelHtmlAttributes)
.StartTag("input", TagRenderMode.SelfClosing)
.MergeAttribute("type", "checkbox")
.MergeAttribute("name", fullHtmlFieldName)
.MergeAttribute("id", fullHtmlFieldId + "_" + index)
.MergeAttribute("value", item.Value);
if (isChecked)
{
tagBuilder = tagBuilder.MergeAttribute("checked", "checked");
}
if (checkboxHtmlAttributes != null)
{
tagBuilder = tagBuilder.MergeAttributes(checkboxHtmlAttributes);
}
tagBuilder = tagBuilder.EndTag(); //end checkbox
tagBuilder = tagBuilder
.StartTag("span")
.SetInnerText(item.Text)
.EndTag();
sb.Append(tagBuilder.ToString());
index++;
}
sb.Append("</div>");
}
}
return(new MvcHtmlString(sb.ToString()));
}
