diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
index 046f02c36..220ed929a 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
@@ -208,6 +208,11 @@ namespace SqlSugar
             get; set;
         }
 
+        public override byte Scale
+        {
+            get;set;
+        }
+
         public int _Size;
 
         public override int Size
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs
index 45fee783a..364f073d5 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs
@@ -662,6 +662,10 @@ namespace SqlSugar
                 {
                     name = "IsNullOrEmpty";
                 }
+                if (model.Conext == null) 
+                {
+                    model.Conext = this.Context;
+                }
                 switch (name)
                 {
                     case "IIF":
diff --git a/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlServerProvider.cs b/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlServerProvider.cs
index daf72d1d2..9b26f15ca 100644
--- a/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlServerProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlServerProvider.cs
@@ -182,6 +182,10 @@ namespace SqlSugar
                 {
                     sqlParameter.SqlDbType = ((SqlDbType)parameter.CustomDbType);
                 }
+                if (sqlParameter.Direction == ParameterDirection.Output && parameter.Scale > 0)
+                {
+                    sqlParameter.Scale = parameter.Scale;
+                }
                 ++index;
             }
             return result;