diff --git a/FineUI.Examples/FineUI.Examples.csproj b/FineUI.Examples/FineUI.Examples.csproj
index 096a243..e2b02a9 100644
--- a/FineUI.Examples/FineUI.Examples.csproj
+++ b/FineUI.Examples/FineUI.Examples.csproj
@@ -161,6 +161,7 @@
     <Content Include="test\activex.aspx" />
     <Content Include="test\form2.aspx" />
     <Content Include="test\grid_editor_cell2.aspx" />
+    <Content Include="test\hello.aspx" />
     <Content Include="third-party\autocomplete\inline_window.aspx" />
     <Content Include="third-party\ckeditor\ckeditor.aspx" />
     <Content Include="third-party\tinymce\tinymce.aspx" />
@@ -1215,6 +1216,12 @@
     <Compile Include="test\grid_editor_cell2.aspx.designer.cs">
       <DependentUpon>grid_editor_cell2.aspx</DependentUpon>
     </Compile>
+    <Compile Include="test\hello.aspx.cs">
+      <DependentUpon>hello.aspx</DependentUpon>
+    </Compile>
+    <Compile Include="test\hello.aspx.designer.cs">
+      <DependentUpon>hello.aspx</DependentUpon>
+    </Compile>
     <Compile Include="third-party\autocomplete\inline_window.aspx.cs">
       <DependentUpon>inline_window.aspx</DependentUpon>
       <SubType>ASPXCodeBehind</SubType>
diff --git a/FineUI.Examples/extjs_builder/js/F/extender.js b/FineUI.Examples/extjs_builder/js/F/extender.js
index 731c304..829fe8b 100644
--- a/FineUI.Examples/extjs_builder/js/F/extender.js
+++ b/FineUI.Examples/extjs_builder/js/F/extender.js
@@ -871,7 +871,11 @@ if (Ext.grid.Panel) {
                 sm.deselectAll(true);
                 Ext.Array.each(rows, function (row, index) {
                     // select( records, [keepExisting], [suppressEvent] )
-                    sm.select(store.getById(row), true, true);
+                    // 有可能存在指定的行找不到的情况
+                    var rowInstance = store.getById(row);
+                    if (rowInstance) {
+                        sm.select(rowInstance, true, true);
+                    }
                 });
             }
         },
@@ -913,11 +917,15 @@ if (Ext.grid.Panel) {
 				cell = [rowId, columnId];
 			}
 			
-            var sm = me.getSelectionModel();
-			if (cell.length === 2) {
+            if (cell && cell.length === 2) {
 				// 支持[行索引,列索引]，也支持[行Id,列Id]
 				var row = cell[0];
 				var column = cell[1];
+
+                // 如果未定义，则直接返回
+				if (!row || !column) {
+				    return;
+				}
 				
 				if(typeof(row) === 'string') {
 					row = me.f_getRow(row);
@@ -927,6 +935,7 @@ if (Ext.grid.Panel) {
 					column = me.f_getColumn(column);
 				}
 				
+				var sm = me.getSelectionModel();
 				sm.setCurrentPosition({
 					row: row,
 					column: column
diff --git a/FineUI/release_history.txt b/FineUI/release_history.txt
index 2369e0f..ecb4f2c 100644
--- a/FineUI/release_history.txt
+++ b/FineUI/release_history.txt
@@ -29,6 +29,11 @@ FineUI 严格遵守 ExtJS 对开源软件的规定，不再内置 ExtJS 库，
 
 发布历史
 
++2016-05-** v4.2.4
+	-修正选中表格中不存在行时出错的问题（yygy-8066）。
+	
+
+
 +2016-01-04 v4.2.3
 	-修正表格后台无法更新选中行的问题（丝路、black_shrimp-7649）。
 	-更新表格控件->模板列->购物车示例，数量输入框只允许输入数字（揣兜-7654）。