/// <summary>
/// Renders a Bootstrap checkbox.
/// </summary>
/// <param name="htmlHelper">The <see cref="T:Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper" /> instance this method extends.</param>
/// <param name="expression">Expression name, relative to the current model.</param>
/// <param name="htmlAttributes">
/// An <see cref="T:System.Object" /> that contains the HTML attributes for the checkbox element. Alternatively, an
/// <see cref="T:System.Collections.Generic.IDictionary`2" /> instance containing the HTML
/// attributes.
/// </param>
/// <param name="configAction">Action that implements checkbox configuration.</param>
/// <returns>Checkbox html markup.</returns>
/// <remarks>
/// <para>
/// Combines <see cref="P:Microsoft.AspNetCore.Mvc.ViewFeatures.TemplateInfo.HtmlFieldPrefix" /> and <paramref name="expression" /> to set
/// checkbox element's "name" attribute. Sanitizes <paramref name="expression" /> to set checkbox element's "id"
/// attribute.
/// </para>
/// <para>Determines checkbox element's "checked" attribute based on the following precedence:</para>
/// <list type="number">
/// <item>
/// <see cref="T:Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary" /> entry for <paramref name="expression" /> (converted to a
/// fully-qualified name) if entry exists and can be converted to a <see cref="T:System.Boolean" />.
/// </item>
/// <item>
/// <see cref="T:Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary" /> entry for <paramref name="expression" /> (converted to a
/// fully-qualified name) if entry exists and can be converted to a <see cref="T:System.Boolean" />.
/// </item>
/// <item>
/// Linq expression based on <paramref name="expression" /> (converted to a fully-qualified name) run against
/// current model if result is non-<c>null</c> and can be converted to a <see cref="T:System.Boolean" />. For example
/// <c>string.Empty</c> identifies the current model and <c>"prop"</c> identifies the current model's "prop"
/// property.
/// </item>
/// <item>Existing "checked" entry in <paramref name="htmlAttributes" /> if any.</item>
/// <item>Otherwise, does not include a "checked" attribute.</item>
/// </list>
/// <para>
/// In all but the <paramref name="htmlAttributes" /> and default cases, includes a "checked" attribute with
/// value "checked" if the <see cref="T:System.Boolean" /> values is <c>true</c>; does not include the attribute otherwise.
/// </para>
/// </remarks>
public static IHtmlContent MvcCoreBootstrapCheckBox(this IHtmlHelper htmlHelper, string expression, object htmlAttributes,
Action <MvcCoreBootstrapCheckBoxBuilder> configAction = null)
{
CheckBoxConfig config = new CheckBoxConfig();
return(htmlHelper.Control(configAction, new MvcCoreBootstrapCheckBoxBuilder(config),
new CheckBoxRenderer(config, new TooltipRenderer()), config, htmlHelper.CheckBox(expression, htmlAttributes)));
}
public CheckBoxOption(ConfigEntry <bool> configEntry, CheckBoxConfig config)
{
_originalValue = configEntry.Value;
_configEntry = configEntry;
Config = config;
SetCategoryName(configEntry.Definition.Section, config);
SetName(configEntry.Definition.Key, config);
SetDescription(configEntry.Description.Description, config);
}
private static IHtmlContent CheckBoxFor <TModel>(this IHtmlHelper <TModel> htmlHelper,
Expression <Func <TModel, bool> > expression, Action <MvcCoreBootstrapCheckBoxBuilder> configAction,
CheckBoxConfig config)
{
FormConfig formConfig = htmlHelper.ViewBag.FormConfig as FormConfig;
Debug.Assert(formConfig != null);
if (htmlHelper == null)
{
throw new ArgumentNullException(nameof(htmlHelper));
}
if (expression == null)
{
throw new ArgumentNullException(nameof(expression));
}
config.ColumnWidths = formConfig.ColumnWidths;
config.PropertyValidationMessages = formConfig.PropertyValidationMessages;
configAction?.Invoke(new MvcCoreBootstrapCheckBoxBuilder(config));
return(new CheckBoxRenderer(config, new TooltipRenderer()).Render(htmlHelper, expression));
}
internal MvcCoreBootstrapCheckBoxBuilder(CheckBoxConfig config)
{
_config = config;
}
public CheckBoxRenderer(CheckBoxConfig config, ITooltipRenderer tooltipRenderer)
: base(config, tooltipRenderer)
{
_config = config;
}
