/// <summary>
/// 生成输入框的Html
/// </summary>
/// <param name="name">WebUploader的名称</param>
/// <param name="date">WebUploader的值</param>
/// <returns>html文本</returns>
private static MvcHtmlString GenerateHtml(this HtmlHelper html, string name, WebUploader model)
{
var map = new ViewDataDictionary();
map["FileUploaderName"] = name;
return(html.Partial("_WebUploader", model, map));
}
/// <summary>
/// 通过lambda表达式生成控件
/// </summary>
/// <param name="helper">HtmlHelper对象</param>
/// <param name="expression">lambda表达式，指定要显示的属性及其所属对象</param>
/// <param name="model"></param>
/// <returns>Html文本</returns>
public static MvcHtmlString WebUploaderFor <TModel, TProperty>(this HtmlHelper <TModel> helper,
Expression <Func <TModel, TProperty> > expression, WebUploader model)
{
if (model == null)
{
model = new WebUploader();
}
string name = ExpressionHelper.GetExpressionText(expression);
var val = ModelMetadata.FromLambdaExpression <TModel, TProperty>(expression, helper.ViewData).Model;
if (val != null)
{
model.Files = val.ToString();
}
return(GenerateHtml(helper, name, model));
}
/// <summary>
/// 使用特定的名称和初始值生成控件
/// </summary>
/// <param name="helper">HtmlHelper对象</param>
/// <param name="name">控件名称</param>
/// <param name="date">要显示的日期时间</param>
/// <param name="format">显示格式</param>
/// <returns>Html文本</returns>
public static MvcHtmlString WebUploader(this HtmlHelper helper, string name, WebUploader model)
{
return(GenerateHtml(helper, name, model ?? new WebUploader()));
}