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Ivony · Nov 21, 2012 · 1a963c3 · 1a963c3
1 parent 2609896
commit 1a963c3
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Showing 2 changed files with 10 additions and 4 deletions.
diff --git a/Sources/Ivony.Data/DataSetExtensions.cs b/Sources/Ivony.Data/DataSetExtensions.cs
@@ -30,9 +30,9 @@ public static IEnumerable<DataRowView> View( this DataTable table )
     /// <typeparam name="T">列数据类型</typeparam>
     /// <param name="table">数据对象</param>
     /// <returns></returns>
-    public static IEnumerable<T> Column<T>( this DataTable table )
+    public static T[] Column<T>( this DataTable table )
     {
-      return table.Rows.Cast<DataRow>().Select( item => item.Field<T>( 0 ) );
+      return table.Rows.Cast<DataRow>().Select( item => item.Field<T>( 0 ) ).ToArray();
     }
 
     /// <summary>
@@ -42,9 +42,9 @@ public static IEnumerable<T> Column<T>( this DataTable table )
     /// <param name="table">数据对象</param>
     /// <param name="columnName">列名</param>
     /// <returns></returns>
-    public static IEnumerable<T> Column<T>( this DataTable table, string columnName )
+    public static T[] Column<T>( this DataTable table, string columnName )
     {
-      return table.Rows.Cast<DataRow>().Select( item => item.Field<T>( columnName ) );
+      return table.Rows.Cast<DataRow>().Select( item => item.Field<T>( columnName ) ).ToArray();
     }
 
 

diff --git a/Sources/Ivony.Data/LegacyExtensions.cs b/Sources/Ivony.Data/LegacyExtensions.cs
@@ -32,5 +32,11 @@ public static DataRow ExecuteSingleRow( this DbUtility dbUtility, string templat
       return dbUtility.FirstRow( template, args );
     }
 
+    public static T[] ExecuteSingleColumn<T>( this DbUtility dbUtility, string template, params object[] args )
+    {
+      return dbUtility.Data( template, args ).Column<T>();
+    }
+
+
   }
 }