private static string TextAreaBuilder(HtmlControlHelper helper,
string name, string value, int rows, int columns,
IDictionary <string, object> attributes)
{
if (attributes == null)
{
attributes = new ValueDictionary();
}
HtmlElementBuilder htb = new HtmlElementBuilder("textarea");
htb.Attributes.Merge(attributes, true);
htb.Attributes.Merge("name", name, true);
htb.Attributes.Merge("rows", rows, false);
htb.Attributes.Merge("cols", columns, false);
htb.InnerText = value ?? String.Empty;
return(htb.ToString());
}
public static string RadioButton(this HtmlControlHelper helper,
string name, object value)
{
return(RadioButton(helper, name, value, new ValueDictionary()));
}
public static string ListBox(this HtmlControlHelper helper,
string name, MultiSelectList list, object attributes)
{
return(ListBox(helper, name, list, new ValueDictionary(attributes)));
}
public static string ListBox(this HtmlControlHelper helper,
string name, IEnumerable list, string dataTextField,
IDictionary <string, object> attributes)
{
return(ListBox(helper, name, list, dataTextField, null, null, attributes));
}
public static string ListBox(this HtmlControlHelper helper,
string name, IEnumerable list)
{
return(ListBox(helper, name, list,
null, null, null, null));
}
public static string DropDownList(this HtmlControlHelper helper,
string name, SelectList list)
{
return(SelectBuilder(helper, name, list, false, null));
}
public static string DropDownList(this HtmlControlHelper helper,
string name, IEnumerable list)
{
return(DropDownList(helper, name, list, null, null, null, null));
}
public static string TextArea <TModel>(this HtmlControlHelper <TModel> helper,
string name, Expression <Func <TModel, string> > value)
where TModel : class
{
return(TextArea(helper, name, value, 2, 20, null));
}
public static string Password(this HtmlControlHelper helper, string name)
{
return(Password(helper, name, null, new ValueDictionary()));
}
public static string TextBox(this HtmlControlHelper helper,
string name, object value)
{
return(TextBox(helper, name, value, new ValueDictionary()));
}
public static string Hidden(this HtmlControlHelper helper,
string name, IDictionary <string, object> attributes)
{
return(Hidden(helper, name, null, attributes));
}
public static string RadioButton <TModel>(this HtmlControlHelper <TModel> helper,
string name, object value, Expression <Func <TModel, bool> > isChecked)
where TModel : class
{
return(RadioButton(helper, name, value, isChecked, null));
}
public static string RadioButton(this HtmlControlHelper helper,
string name, object value, bool isChecked, object attributes)
{
return(RadioButton(helper, name, value, isChecked, new ValueDictionary(attributes)));
}
public static string RadioButton(this HtmlControlHelper helper,
string name, object value, IDictionary <string, object> attributes)
{
return(RadioButton(helper, name, value, false, attributes));
}
public static string TextArea(this HtmlControlHelper helper,
string name, string value, int rows, int columns, object attributes)
{
return(TextArea(helper, name, value, rows, columns, new ValueDictionary(attributes)));
}
public static string Password(this HtmlControlHelper helper,
string name, object value, object attributes)
{
return(Password(helper, name, value, new ValueDictionary(attributes)));
}
private static string SelectBuilder(HtmlControlHelper helper,
string name, MultiSelectList dataSource, bool isMultiple,
IDictionary <string, object> attributes)
{
Precondition.Defined(name, () => Error.ArgumentNull("name"));
if (attributes == null)
{
attributes = new ValueDictionary();
}
if (isMultiple)
{
attributes["multiple"] = "multiple";
}
else
{
attributes.Remove("multiple");
}
HtmlElementBuilder outer = new HtmlElementBuilder("select");
outer.Attributes.Merge(attributes, true);
outer.Attributes.Merge("name", name, true);
if (dataSource != null)
{
StringBuilder builder = new StringBuilder();
IEnumerable <ListItem> listItems = dataSource.GetListItems();
string[] selectedValues = null;
if (helper.DataSource.Keys.Any(k => k.Equals(name, StringComparison.OrdinalIgnoreCase)))
{
selectedValues = helper.DataSource.GetValue <string>(name, String.Empty)
.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
}
builder.AppendLine();
foreach (ListItem item in listItems)
{
if (selectedValues != null)
{
item.Selected = selectedValues.Any(s =>
String.Equals(item.Value, s, StringComparison.OrdinalIgnoreCase));
}
HtmlElementBuilder inner = new HtmlElementBuilder("option");
inner.InnerText = item.Text;
if (item.Value != null)
{
inner.Attributes.Merge("value", item.Value, true);
}
if (item.Selected)
{
inner.Attributes.Merge("selected", "selected");
}
builder.AppendLine(inner.ToString());
}
outer.InnerHtml = builder.ToString();
}
return(outer.ToString());
}
public static string Password(this HtmlControlHelper helper,
string name, object value, IDictionary <string, object> attributes)
{
Precondition.Defined(name, () => Error.ArgumentNull("name"));
return(InputBuilder(helper, "password", name, value, attributes));
}
public static string TextArea <TModel>(this HtmlControlHelper <TModel> helper,
string name, Expression <Func <TModel, string> > value, object attributes)
where TModel : class
{
return(TextArea(helper, name, value, 2, 20, new ValueDictionary(attributes)));
}
public static string Password <TModel>(this HtmlControlHelper <TModel> helper,
string name, Expression <Func <TModel, object> > value)
where TModel : class
{
return(Password(helper, name, value, null));
}
public static string DropDownList(this HtmlControlHelper helper,
string name, IEnumerable list, IDictionary <string, object> attributes)
{
return(DropDownList(helper, name, list, null, null, null, attributes));
}
public static string Password <TModel>(this HtmlControlHelper <TModel> helper,
string name, Expression <Func <TModel, object> > value, object attributes)
where TModel : class
{
return(Password(helper, name, value, new ValueDictionary(attributes)));
}
public static string DropDownList(this HtmlControlHelper helper,
string name, SelectList list, IDictionary <string, object> attributes)
{
return(SelectBuilder(helper, name, list, false, attributes));
}
public static string TextArea(this HtmlControlHelper helper,
string name, object attributes)
{
return(TextArea(helper, name, null, 2, 20, new ValueDictionary(attributes)));
}
public static string ListBox(this HtmlControlHelper helper,
string name, IEnumerable list, object attributes)
{
return(ListBox(helper, name, list,
null, null, null, new ValueDictionary(attributes)));
}
public static string TextArea(this HtmlControlHelper helper,
string name, string value)
{
return(TextArea(helper, name, value, 2, 20, new ValueDictionary()));
}
public static string ListBox(this HtmlControlHelper helper,
string name, MultiSelectList list)
{
return(ListBox(helper, name, list, null));
}
public static string TextArea(this HtmlControlHelper helper,
string name, string value, IDictionary <string, object> attributes)
{
return(TextArea(helper, name, value, 2, 20, attributes));
}
public static string ListBox(this HtmlControlHelper helper,
string name, MultiSelectList list, IDictionary <string, object> attributes)
{
return(SelectBuilder(helper, name, list, true, attributes));
}
public static string CheckBox(this HtmlControlHelper helper,
string name, object value, IDictionary <string, object> attributes)
{
Precondition.Defined(name, () => Error.ArgumentNull("name"));
return(CheckBox(helper, name, value, false, attributes));
}