添加项目文件。

HT.Cloud.Code/Extend/Ext.Validate.cs

@@ -0,0 +1,30 @@
+using Microsoft.AspNetCore.Http;
+using System;
+
+namespace HT.Cloud.Code
+{
+	public static partial class Extensions
+	{
+		public static bool IsNullOrZero(this object value)
+		{
+			if (value == null || value.ParseToString().Trim() == "0")
+			{
+				return true;
+			}
+			else
+			{
+				return false;
+			}
+		}
+
+		public static bool IsAjaxRequest(this HttpRequest request)
+		{
+			if (request == null)
+				throw new ArgumentNullException("request");
+
+			if (request.Headers != null)
+				return request.Headers["X-Requested-With"] == "XMLHttpRequest";
+			return false;
+		}
+	}
+}