public override void SetPropertyFor <TModel, TProperty>(HtmlHelper <TModel> htmlHelper, Expression <Func <TModel, TProperty> > expression)
{
base.SetPropertyFor(htmlHelper, expression);
//var t = typeof(TProperty);
var t = PFDataHelper.GetNonnullType(typeof(TProperty));
var v = PFMVCHelper.ExpressionValueFor(htmlHelper, expression);
if (v != null)
{
if (t.IsEnum)
{
_selectedValue = ((int)v).ToString();
}
else
{
_selectedValue = v.ToString();
}
}
if (t.IsEnum)
{
SetSelectList(PFDataHelper.EnumToKVList(t));
}
//_selectedValue = (PFMVCHelper.ExpressionValueFor(htmlHelper,expression)??"").ToString();
//_selectedText = (PFMVCHelper.ExpressionValueFor(htmlHelper, expression) ?? "").ToString();//这里用text,是因为即便是enum,ToString后肯定是需要显示的值
}
public override MvcHtmlString Html <TModel, TProperty>(HtmlHelper <TModel> htmlHelper, Expression <Func <TModel, TProperty> > expression)
{
var propertyName = ExpressionHelper.GetExpressionText(expression);
//var value = ValueExtensions.ValueFor(htmlHelper, expression);
var value = PFMVCHelper.ExpressionValueFor(htmlHelper, expression);
return(this.Html(htmlHelper, propertyName, value));
}
public override MvcHtmlString Html <TModel, TProperty>(HtmlHelper <TModel> htmlHelper, Expression <Func <TModel, TProperty> > expression)
{
var htmlAttributes = GetHtmlAttributes();
var exp = expression as Expression <Func <TModel, bool> >;
if (exp != null)
{
return(htmlHelper.CheckBoxFor(expression as Expression <Func <TModel, bool> >, htmlAttributes));
}
else //上面For方法只支持非空bool型
{
var n = ExpressionHelper.GetExpressionText(expression);
var v = PFMVCHelper.ExpressionValueFor(htmlHelper, expression);
if (v == null)
{
v = false;
}
return(htmlHelper.CheckBox(n, (bool)v, htmlAttributes));
}
}