/// <summary>
/// Builds a checkbox that allows multiple rows in a table to be
/// selected
/// </summary>
public static MvcHtmlString RowCheckboxFor <TModel>(this HtmlHelper <TModel> helper,
Expression <Func <TModel, long> > idProperty, dynamic htmlAttributes = null)
{
if (idProperty.NodeType != ExpressionType.Lambda ||
idProperty.Body.NodeType != ExpressionType.MemberAccess)
{
throw new ArgumentException(nameof(idProperty));
}
var value = idProperty.Compile()(helper.ViewData.Model).ToString();
var inputTag = new TagBuilder("input");
inputTag.MergeAttribute("name", "ids");
inputTag.MergeAttribute("type", "checkbox");
inputTag.MergeAttribute("value", value);
inputTag.MergeAttribute("id", string.Format("id{0}", controlId++));
IDictionary <string, string> properties =
TagBuilderExtensions.DynamicToProperties(htmlAttributes);
inputTag.AddCustomHtmlAttributes(properties);
return(MvcHtmlString.Create(inputTag.ToString()));
}
public static MvcHtmlString MultiSelectTextBoxFor <TModel, TProp>(
this HtmlHelper <TModel> helper,
Expression <Func <TModel, UpdatableField <TProp> > > updatableField,
dynamic htmlAttributes = null)
{
if (updatableField.NodeType != ExpressionType.Lambda ||
updatableField.Body.NodeType != ExpressionType.MemberAccess)
{
throw new ArgumentException(nameof(updatableField));
}
var node = updatableField.Body as MemberExpression;
var fieldName = node.Member.Name;
var fieldValue = updatableField.Compile()(helper.ViewData.Model);
var indeterminateFlagElement = new TagBuilder("input");
indeterminateFlagElement.MergeAttribute("name",
string.Format("{0}_IsIndeterminate", fieldName));
indeterminateFlagElement.MergeAttribute("type", "hidden");
indeterminateFlagElement.MergeAttribute("class", "kaia-ms-flag");
indeterminateFlagElement.MergeAttribute("value",
fieldValue.IsIndeterminate.ToString());
var oldValueElement = new TagBuilder("input");
oldValueElement.MergeAttribute("name",
string.Format("{0}_OldValue", fieldName));
oldValueElement.MergeAttribute("type", "hidden");
oldValueElement.MergeAttribute("class", "kaia-ms-old");
if (fieldValue.IsIndeterminate)
{
oldValueElement.MergeAttribute("value", MultiSelectMessage);
}
else
{
oldValueElement.MergeAttribute("value", fieldValue.Value.ToString());
}
var newValueElement = new TagBuilder("input");
// TODO: Add better intelligent input types, e.g., based on
// DataTypeAttribute
newValueElement.MergeAttribute("name",
string.Format("{0}_NewValue", fieldName));
newValueElement.MergeAttribute("type", "text");
newValueElement.MergeAttribute("class", "kaia-ms-new form-control");
if (!fieldValue.IsUpdatable)
{
newValueElement.MergeAttribute("readonly", "readonly");
}
if (fieldValue.IsUpdated || !fieldValue.IsIndeterminate)
{
newValueElement.MergeAttribute("value", fieldValue.Value.ToString());
}
else
{
newValueElement.MergeAttribute("value", MultiSelectMessage);
}
IDictionary <string, string> properties =
TagBuilderExtensions.DynamicToProperties(htmlAttributes);
newValueElement.AddCustomHtmlAttributes(properties);
var controlElement = new TagBuilder("span");
controlElement.MergeAttribute("class", "kaia-ms-ctl");
controlElement.MergeAttribute("data-kaia-ms-name", fieldName);
controlElement.InnerHtml = string.Join(Environment.NewLine,
new string[]
{
indeterminateFlagElement.ToString(),
oldValueElement.ToString(),
newValueElement.ToString()
});
var result = MvcHtmlString.Create(controlElement.ToString());
return(result);
}
