diff --git a/src/bnhtrade.Core/Data/Database/Stock/ReadSkuTransactionType.cs b/src/bnhtrade.Core/Data/Database/Stock/ReadSkuTransactionType.cs
index c4602f9..40f3de8 100644
--- a/src/bnhtrade.Core/Data/Database/Stock/ReadSkuTransactionType.cs
+++ b/src/bnhtrade.Core/Data/Database/Stock/ReadSkuTransactionType.cs
@@ -125,6 +125,8 @@ namespace bnhtrade.Core.Data.Database.Stock
 
         public List<Model.Stock.SkuTransactionType> ByTypeCode(List<string> typeCode)
         {
+            typeCode.RemoveAll(string.IsNullOrWhiteSpace);
+
             string sqlWhere = @"
                 WHERE TypeCode IN @typeCode ";
 
@@ -136,6 +138,8 @@ namespace bnhtrade.Core.Data.Database.Stock
 
         public List<Model.Stock.SkuTransactionType> ByTypeName(List<string> typeName)
         {
+            typeName.RemoveAll(string.IsNullOrWhiteSpace);
+
             string sqlWhere = @"
                 WHERE TypeName IN @typeName ";
 
diff --git a/src/bnhtrade.Core/Logic/Stock/SkuTransactionTypePersistance.cs b/src/bnhtrade.Core/Logic/Stock/SkuTransactionTypePersistance.cs
index 5fe313c..02d8abe 100644
--- a/src/bnhtrade.Core/Logic/Stock/SkuTransactionTypePersistance.cs
+++ b/src/bnhtrade.Core/Logic/Stock/SkuTransactionTypePersistance.cs
@@ -41,6 +41,8 @@ namespace bnhtrade.Core.Logic.Stock
         {
             CacheInnit();
 
+            typeCodeList.RemoveAll(string.IsNullOrWhiteSpace);
+
             if (typeCodeList == null || !typeCodeList.Any())
             {
                 return;