public static object GetInputValue(this HtmlHelper html, IFormInputBuilder inputBuilder, string name, object value, bool useViewData = false)
{
if (inputBuilder.InstanceData.ContainsKey("value"))
{
return(inputBuilder.Val());
}
if (useViewData && value == null)
{
value = Convert.ToString(html.ViewData.Eval(name), CultureInfo.CurrentCulture);
}
string fullHtmlFieldName = html.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(name);
object attemptedValue = html.GetModelStateValue(fullHtmlFieldName, typeof(string));
return(attemptedValue ?? value);
}
/// <summary>
/// Gets the value.
/// </summary>
public static object Val(this IFormInputBuilder instance)
{
return(instance.Prop <object>("value"));
}
public static object GetInputValue <TModel, TProperty>(this HtmlHelper <TModel> html, IFormInputBuilder inputBuilder, Expression <Func <TModel, TProperty> > expression)
{
ModelMetadata metadata = ModelMetadata.FromLambdaExpression(expression, html.ViewData);
return(GetInputValue(html, inputBuilder, ExpressionHelper.GetExpressionText(expression), metadata.Model));
}