MVC 全局去除空格

public class TrimModelBinder : DefaultModelBinder    {        public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)        {            var value = base.BindModel(controllerContext, bindingContext);            if (bindingContext.ModelType != typeof(string)) return value;            var str = (string)value;            if (!string.IsNullOrEmpty(str))                value = str.Trim();            return value;        }    }