转移.net core 3.1，为.NET 5做准备

Infrastructure/Const/HtmlElementType.cs

@@ -0,0 +1,26 @@
+namespace Infrastructure.Const
+{
+    public struct HtmlElementType
+    {
+        public const string drop = "drop";
+        public const string droplist = "droplist";
+        public const string select = "select";
+        public const string selectlist = "selectlist";
+        public const string checkbox = "checkbox";
+        public const string textarea = "textarea";
+        public const string thanorequal = "thanorequal";
+        public const string lessorequal = "lessorequal"; 
+
+
+        public const string gt = "gt";
+        public const string lt = "lt";
+        public const string GT = ">";
+        public const string LT = "<";
+        public const string like = "like";
+
+        public const string ThanOrEqual = ">=";
+        public const string LessOrequal = "<=";
+        public const string Contains = "in";
+        public const string Equal = "=";
+    }
+}

Infrastructure/Const/LinqExpressionType.cs

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+namespace Infrastructure.Const
+{
+    public enum LinqExpressionType
+    {
+        Equal=0,//=
+        NotEqual=1,//!=
+        GreaterThan,//>
+        LessThan,//<
+        ThanOrEqual,//>=
+        LessThanOrEqual,//<=
+        In,
+        Contains,//Contains
+        NotContains//NotContains
+    }
+}

Infrastructure/Const/QueryOrderBy.cs

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+namespace Infrastructure.Const
+{
+    public enum QueryOrderBy
+    {
+        Desc=1,
+        Asc=2
+    }
+}

Infrastructure/Const/ResponseType.cs

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+namespace Infrastructure.Const
+{
+    public enum ResponseType
+    {
+        ServerError = 1,
+        LoginExpiration = 302,
+        ParametersLack = 303,
+        TokenExpiration,
+        PINError,
+        NoPermissions,
+        NoRolePermissions,
+        LoginError,
+        AccountLocked,
+        LoginSuccess,
+        SaveSuccess,
+        AuditSuccess,
+        OperSuccess,
+        RegisterSuccess,
+        ModifyPwdSuccess,
+        EidtSuccess,
+        DelSuccess,
+        NoKey,
+        NoKeyDel,
+        KeyError,
+        Other
+    }
+}

Infrastructure/Const/SqlDbTypeName.cs

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+namespace Infrastructure.Const
+{
+    public struct SqlDbTypeName
+    {
+        public const string NVarChar = "nvarchar";
+        public const string VarChar = "varchar";
+        public const string NChar = "nchar";
+        public const string Char = "char";
+        public const string Text = "text";
+        public const string Int = "int";
+        public const string BigInt = "bigint";
+        public const string DateTime = "datetime";
+        public const string Date = "date";
+        public const string SmallDateTime = "smalldatetime";
+        public const string SmallDate = "smalldate";
+        public const string Float = "float";
+        public const string Decimal = "decimal";
+        public const string Double = "double";
+        public const string Bit = "bit";
+        public const string Bool = "bool";
+        public const string UniqueIdentifier = "uniqueidentifier";
+
+    }
+}