From ff04719914f281b462495568c15d287d71e37d37 Mon Sep 17 00:00:00 2001
From: Joe Harrison <email@joeharrison.com>
Date: Tue, 24 Feb 2015 23:03:32 -0500
Subject: [PATCH] added column defaults and tweaked demos

---
 MVCGrid/MVCGrid.csproj                        |  1 +
 MVCGrid/Models/ColumnDefaults.cs              | 32 +++++++++++++
 MVCGrid/Models/GridColumn.cs                  | 24 ++++++++--
 MVCGrid/Models/GridColumnBuilder.cs           | 24 ++++++++--
 MVCGrid/Models/GridDefinition.cs              | 47 ++++++++++---------
 MVCGrid/Models/MVCGridBuilder.cs              | 16 ++++++-
 MVCGridExample/App_Start/MVCGridConfig.cs     | 41 +++++++++-------
 MVCGridExample/Content/MVCGridConfig.txt      | 41 +++++++++-------
 MVCGridExample/Views/Demo/PageSizeDemo.cshtml | 19 ++++++--
 9 files changed, 173 insertions(+), 72 deletions(-)
 create mode 100644 MVCGrid/Models/ColumnDefaults.cs

diff --git a/MVCGrid/MVCGrid.csproj b/MVCGrid/MVCGrid.csproj
index 13891d1..f3c93af 100644
--- a/MVCGrid/MVCGrid.csproj
+++ b/MVCGrid/MVCGrid.csproj
@@ -53,6 +53,7 @@
     <Compile Include="Engine\GridEngine.cs" />
     <Compile Include="Interfaces\IMVCGridRenderingEngine.cs" />
     <Compile Include="Interfaces\IMVCGridTemplatingEngine.cs" />
+    <Compile Include="Models\ColumnDefaults.cs" />
     <Compile Include="Models\ColumnVisibility.cs" />
     <Compile Include="Models\MVCGridBuilder.cs" />
     <Compile Include="Models\GridColumnBuilder.cs" />
diff --git a/MVCGrid/Models/ColumnDefaults.cs b/MVCGrid/Models/ColumnDefaults.cs
new file mode 100644
index 0000000..c8b57f7
--- /dev/null
+++ b/MVCGrid/Models/ColumnDefaults.cs
@@ -0,0 +1,32 @@
+using MVCGrid.Interfaces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace MVCGrid.Models
+{
+    public class ColumnDefaults : IMVCGridColumn
+    {
+        public ColumnDefaults()
+        {
+            ColumnName = null;
+            HeaderText = null;
+            EnableSorting = false;
+            HtmlEncode = true;
+            EnableFiltering = false;
+            Visible = true;
+            SortColumnData = null;
+            AllowChangeVisibility = false;
+        }
+
+        public string ColumnName { get; set; }
+        public string HeaderText { get; set; }
+        public bool EnableSorting { get; set; }
+        public bool HtmlEncode { get; set; }
+        public bool EnableFiltering { get; set; }
+        public bool Visible { get; set; }
+        public object SortColumnData { get; set; }
+        public bool AllowChangeVisibility { get; set; }
+    }
+}
diff --git a/MVCGrid/Models/GridColumn.cs b/MVCGrid/Models/GridColumn.cs
index f69413d..2243a70 100644
--- a/MVCGrid/Models/GridColumn.cs
+++ b/MVCGrid/Models/GridColumn.cs
@@ -11,11 +11,17 @@ public class GridColumn<T1> : IMVCGridColumn
         private string _headerText = null;
 
         public GridColumn()
-            : this(null, null, null)
+            : this(null, null, null, null)
         {
         }
 
         public GridColumn(string columnName, string headerText, Func<T1, GridContext, string> valueExpression)
+            :this(columnName, headerText, valueExpression, null)
+        {
+
+        }
+
+        public GridColumn(string columnName, string headerText, Func<T1, GridContext, string> valueExpression, ColumnDefaults columnDefaults)
         {
             if (!String.IsNullOrWhiteSpace(columnName))
             {
@@ -32,10 +38,18 @@ public GridColumn(string columnName, string headerText, Func<T1, GridContext, st
                 this.ValueExpression = valueExpression;
             }
 
-            EnableSorting = false;
-            HtmlEncode = true;
-            EnableFiltering = false;
-            Visible = true;
+            if (columnDefaults == null)
+            {
+                columnDefaults = new ColumnDefaults();
+            }
+
+            EnableSorting = columnDefaults.EnableSorting;
+            HtmlEncode = columnDefaults.HtmlEncode;
+            EnableFiltering = columnDefaults.EnableFiltering;
+            Visible = columnDefaults.Visible;
+            SortColumnData = columnDefaults.SortColumnData;
+            AllowChangeVisibility = columnDefaults.AllowChangeVisibility;
+
         }
 
         /// <summary>
diff --git a/MVCGrid/Models/GridColumnBuilder.cs b/MVCGrid/Models/GridColumnBuilder.cs
index 4c341fe..369d4b9 100644
--- a/MVCGrid/Models/GridColumnBuilder.cs
+++ b/MVCGrid/Models/GridColumnBuilder.cs
@@ -7,9 +7,18 @@ namespace MVCGrid.Models
 {
     public class GridColumnListBuilder<T1>
     {
+        private ColumnDefaults _columnDefaults = null;
+
         public GridColumnListBuilder()
+            : this(null)
+        {
+        }
+
+        public GridColumnListBuilder(ColumnDefaults columnDefaults)
         {
             ColumnBuilders = new List<GridColumnBuilder<T1>>();
+
+            _columnDefaults = columnDefaults;
         }
 
         public List<GridColumnBuilder<T1>> ColumnBuilders { get; set; }
@@ -26,7 +35,7 @@ public GridColumnBuilder<T1> Add(string columnName)
 
         public GridColumnBuilder<T1> Add(string columnName, string headerText, Func<T1, GridContext, string> valueExpression)
         {
-            GridColumnBuilder<T1> col = new GridColumnBuilder<T1>(columnName, headerText, valueExpression);
+            GridColumnBuilder<T1> col = new GridColumnBuilder<T1>(columnName, headerText, valueExpression, _columnDefaults);
 
             ColumnBuilders.Add(col);
 
@@ -44,18 +53,25 @@ public GridColumnBuilder<T1> Add(GridColumn<T1> column)
 
     public class GridColumnBuilder<T1>
     {
-        public GridColumnBuilder():this(null,null,null)
+        public GridColumnBuilder()
+            : this(null, null, null, null)
         {
         }
 
         public GridColumnBuilder(string columnName)
-            : this(columnName, null, null)
+            : this(columnName, null, null, null)
         {
         }
 
         public GridColumnBuilder(string columnName, string headerText, Func<T1, GridContext, string> valueExpression)
+            :this(columnName, headerText, valueExpression, null)
+        {
+
+        }
+
+        public GridColumnBuilder(string columnName, string headerText, Func<T1, GridContext, string> valueExpression, ColumnDefaults columnDefaults)
         {
-            GridColumn = new GridColumn<T1>(columnName, headerText, valueExpression);
+            GridColumn = new GridColumn<T1>(columnName, headerText, valueExpression, columnDefaults);
         }
 
         public GridColumn<T1> GridColumn { get; set; }
diff --git a/MVCGrid/Models/GridDefinition.cs b/MVCGrid/Models/GridDefinition.cs
index 4b665cc..8ae55b4 100644
--- a/MVCGrid/Models/GridDefinition.cs
+++ b/MVCGrid/Models/GridDefinition.cs
@@ -15,36 +15,39 @@ public abstract class GridDefinitionBase
 
     public class GridDefinition<T1> : GridDefinitionBase, IMVCGridDefinition
     {
-        public GridDefinition() : this(new GridDefaults())
+        public GridDefinition() : this(null)
         {
         }
 
-        public GridDefinition(GridDefaults gridDefaults):base()
+        public GridDefinition(GridDefaults gridDefaults)
+            : base()
         {
             Columns = new List<GridColumn<T1>>();
 
-            if (gridDefaults != null)
+            if (gridDefaults == null)
             {
-                this.PreloadData = gridDefaults.PreloadData;
-                this.Paging = gridDefaults.Paging;
-                this.ItemsPerPage = gridDefaults.ItemsPerPage;
-                this.Sorting = gridDefaults.Sorting;
-                this.DefaultSortColumn = gridDefaults.DefaultSortColumn;
-                this.NoResultsMessage = gridDefaults.NoResultsMessage;
-                this.ClientSideLoadingMessageFunctionName = gridDefaults.ClientSideLoadingMessageFunctionName;
-                this.ClientSideLoadingCompleteFunctionName = gridDefaults.ClientSideLoadingCompleteFunctionName;
-                this.Filtering = gridDefaults.Filtering;
-                this.RenderingEngine = gridDefaults.RenderingEngine;
-                this.TemplatingEngine = gridDefaults.TemplatingEngine;
-                this.AdditionalSettings = gridDefaults.AdditionalSettings;
-                this.RenderingMode = gridDefaults.RenderingMode;
-                this.ViewPath = gridDefaults.ViewPath;
-                this.QueryStringPrefix = gridDefaults.QueryStringPrefix;
-                this.ErrorMessageHtml = gridDefaults.ErrorMessageHtml;
-                this.AdditionalQueryOptionNames = gridDefaults.AdditionalQueryOptionNames;
-                this.AllowChangingPageSize = gridDefaults.AllowChangingPageSize;
-                this.MaxItemsPerPage = gridDefaults.MaxItemsPerPage;
+                gridDefaults = new GridDefaults();
             }
+            this.PreloadData = gridDefaults.PreloadData;
+            this.Paging = gridDefaults.Paging;
+            this.ItemsPerPage = gridDefaults.ItemsPerPage;
+            this.Sorting = gridDefaults.Sorting;
+            this.DefaultSortColumn = gridDefaults.DefaultSortColumn;
+            this.NoResultsMessage = gridDefaults.NoResultsMessage;
+            this.ClientSideLoadingMessageFunctionName = gridDefaults.ClientSideLoadingMessageFunctionName;
+            this.ClientSideLoadingCompleteFunctionName = gridDefaults.ClientSideLoadingCompleteFunctionName;
+            this.Filtering = gridDefaults.Filtering;
+            this.RenderingEngine = gridDefaults.RenderingEngine;
+            this.TemplatingEngine = gridDefaults.TemplatingEngine;
+            this.AdditionalSettings = gridDefaults.AdditionalSettings;
+            this.RenderingMode = gridDefaults.RenderingMode;
+            this.ViewPath = gridDefaults.ViewPath;
+            this.QueryStringPrefix = gridDefaults.QueryStringPrefix;
+            this.ErrorMessageHtml = gridDefaults.ErrorMessageHtml;
+            this.AdditionalQueryOptionNames = gridDefaults.AdditionalQueryOptionNames;
+            this.AllowChangingPageSize = gridDefaults.AllowChangingPageSize;
+            this.MaxItemsPerPage = gridDefaults.MaxItemsPerPage;
+
         }
 
         public IEnumerable<IMVCGridColumn> GetColumns()
diff --git a/MVCGrid/Models/MVCGridBuilder.cs b/MVCGrid/Models/MVCGridBuilder.cs
index 59aade8..9b5e11c 100644
--- a/MVCGrid/Models/MVCGridBuilder.cs
+++ b/MVCGrid/Models/MVCGridBuilder.cs
@@ -8,14 +8,28 @@ namespace MVCGrid.Models
 {
     public class MVCGridBuilder<T1>
     {
+        ColumnDefaults _columnDefaults = null;
+
         public MVCGridBuilder()
         {
             GridDefinition = new GridDefinition<T1>();
         }
 
         public MVCGridBuilder(GridDefaults gridDefaults)
+            : this(gridDefaults, null)
+        {
+        }
+
+        public MVCGridBuilder(ColumnDefaults columnDefaults)
+            : this(null, columnDefaults)
+        {
+        }
+
+        public MVCGridBuilder(GridDefaults gridDefaults, ColumnDefaults columnDefaults)
         {
             GridDefinition = new GridDefinition<T1>(gridDefaults);
+
+            _columnDefaults = columnDefaults;
         }
 
         public GridDefinition<T1> GridDefinition { get; set; }
@@ -38,7 +52,7 @@ public MVCGridBuilder<T1> AddColumn(string name, string headerText, Func<T1, Gri
 
         public MVCGridBuilder<T1> AddColumns(Action<GridColumnListBuilder<T1>> columns)
         {
-            GridColumnListBuilder<T1> cols=new GridColumnListBuilder<T1>();
+            GridColumnListBuilder<T1> cols = new GridColumnListBuilder<T1>(_columnDefaults);
             columns.Invoke(cols);
 
             foreach (var col in cols.ColumnBuilders)
diff --git a/MVCGridExample/App_Start/MVCGridConfig.cs b/MVCGridExample/App_Start/MVCGridConfig.cs
index ef382e5..b879e54 100644
--- a/MVCGridExample/App_Start/MVCGridConfig.cs
+++ b/MVCGridExample/App_Start/MVCGridConfig.cs
@@ -115,7 +115,12 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("SortableGrid", new MVCGridBuilder<Person>()
+            ColumnDefaults colDefauls = new ColumnDefaults()
+            {
+                EnableSorting = true
+            };
+
+            MVCGridDefinitionTable.Add("SortableGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -156,7 +161,7 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("PagingGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("PagingGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -207,7 +212,7 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("DIGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("DIGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -239,7 +244,7 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("FormattingGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("FormattingGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -279,7 +284,7 @@ public static void RegisterGrids()
             );
 
 
-            MVCGridDefinitionTable.Add("StyledGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("StyledGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -327,7 +332,7 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("Preloading", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("Preloading", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -360,7 +365,7 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("CustomLoading", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("CustomLoading", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -398,7 +403,7 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("Filtering", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("Filtering", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -453,7 +458,7 @@ public static void RegisterGrids()
             );
 
 
-            MVCGridDefinitionTable.Add("ExportGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("ExportGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add().WithColumnName("Id")
@@ -500,7 +505,7 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("Multiple1", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("Multiple1", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -542,7 +547,7 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("Multiple2", new MVCGridBuilder<TestItem>()
+            MVCGridDefinitionTable.Add("Multiple2", new MVCGridBuilder<TestItem>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Col1").WithValueExpression((p, c) => p.Col1);
@@ -571,7 +576,7 @@ public static void RegisterGrids()
             );
 
 
-            MVCGridDefinitionTable.Add("CustomStyle", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("CustomStyle", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -614,7 +619,7 @@ public static void RegisterGrids()
             );
 
 
-            MVCGridDefinitionTable.Add("CustomRazorView", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("CustomRazorView", new MVCGridBuilder<Person>(colDefauls)
                 .WithRenderingMode(RenderingMode.Controller)
                 .WithViewPath("~/Views/MVCGrid/_Custom.cshtml")
                 .AddColumns(cols =>
@@ -658,7 +663,7 @@ public static void RegisterGrids()
             );
 
 
-            MVCGridDefinitionTable.Add("ValueTemplate", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("ValueTemplate", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -712,7 +717,7 @@ public static void RegisterGrids()
             );
 
 
-            MVCGridDefinitionTable.Add("CustomErrorMessage", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("CustomErrorMessage", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -784,7 +789,7 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("GlobalSearchGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("GlobalSearchGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -822,7 +827,7 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("PageSizeGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("PageSizeGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -856,7 +861,7 @@ public static void RegisterGrids()
                 })
             );
 
-            MVCGridDefinitionTable.Add("ColumnVisibilityGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("ColumnVisibilityGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
diff --git a/MVCGridExample/Content/MVCGridConfig.txt b/MVCGridExample/Content/MVCGridConfig.txt
index ef382e5..b879e54 100644
--- a/MVCGridExample/Content/MVCGridConfig.txt
+++ b/MVCGridExample/Content/MVCGridConfig.txt
@@ -115,7 +115,12 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("SortableGrid", new MVCGridBuilder<Person>()
+            ColumnDefaults colDefauls = new ColumnDefaults()
+            {
+                EnableSorting = true
+            };
+
+            MVCGridDefinitionTable.Add("SortableGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -156,7 +161,7 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("PagingGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("PagingGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -207,7 +212,7 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("DIGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("DIGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -239,7 +244,7 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("FormattingGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("FormattingGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -279,7 +284,7 @@ namespace MVCGridExample
             );
 
 
-            MVCGridDefinitionTable.Add("StyledGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("StyledGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -327,7 +332,7 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("Preloading", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("Preloading", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -360,7 +365,7 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("CustomLoading", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("CustomLoading", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -398,7 +403,7 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("Filtering", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("Filtering", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -453,7 +458,7 @@ namespace MVCGridExample
             );
 
 
-            MVCGridDefinitionTable.Add("ExportGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("ExportGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add().WithColumnName("Id")
@@ -500,7 +505,7 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("Multiple1", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("Multiple1", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -542,7 +547,7 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("Multiple2", new MVCGridBuilder<TestItem>()
+            MVCGridDefinitionTable.Add("Multiple2", new MVCGridBuilder<TestItem>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Col1").WithValueExpression((p, c) => p.Col1);
@@ -571,7 +576,7 @@ namespace MVCGridExample
             );
 
 
-            MVCGridDefinitionTable.Add("CustomStyle", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("CustomStyle", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -614,7 +619,7 @@ namespace MVCGridExample
             );
 
 
-            MVCGridDefinitionTable.Add("CustomRazorView", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("CustomRazorView", new MVCGridBuilder<Person>(colDefauls)
                 .WithRenderingMode(RenderingMode.Controller)
                 .WithViewPath("~/Views/MVCGrid/_Custom.cshtml")
                 .AddColumns(cols =>
@@ -658,7 +663,7 @@ namespace MVCGridExample
             );
 
 
-            MVCGridDefinitionTable.Add("ValueTemplate", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("ValueTemplate", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -712,7 +717,7 @@ namespace MVCGridExample
             );
 
 
-            MVCGridDefinitionTable.Add("CustomErrorMessage", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("CustomErrorMessage", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -784,7 +789,7 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("GlobalSearchGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("GlobalSearchGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -822,7 +827,7 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("PageSizeGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("PageSizeGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
@@ -856,7 +861,7 @@ namespace MVCGridExample
                 })
             );
 
-            MVCGridDefinitionTable.Add("ColumnVisibilityGrid", new MVCGridBuilder<Person>()
+            MVCGridDefinitionTable.Add("ColumnVisibilityGrid", new MVCGridBuilder<Person>(colDefauls)
                 .AddColumns(cols =>
                 {
                     cols.Add("Id").WithSorting(false)
diff --git a/MVCGridExample/Views/Demo/PageSizeDemo.cshtml b/MVCGridExample/Views/Demo/PageSizeDemo.cshtml
index 9313999..c9df9ad 100644
--- a/MVCGridExample/Views/Demo/PageSizeDemo.cshtml
+++ b/MVCGridExample/Views/Demo/PageSizeDemo.cshtml
@@ -7,8 +7,15 @@
 
 @section Scripts{
     <script type="text/javascript">
-        $('#selPageSize').click(function () {
-            MVCGrid.setPageSize('PageSizeGrid', $('#selPageSize').val());
+        $(function () {
+
+            $('#selPageSize').change(function () {
+                MVCGrid.setPageSize('PageSizeGrid', $('#selPageSize').val());
+            });
+
+            // set value of dropdown to grid setting
+            $('#selPageSize').val(MVCGrid.getPageSize('PageSizeGrid'));
+
         });
     </script>
 }
@@ -29,8 +36,12 @@ Page Size: <select id="selPageSize" name="selPageSize">
     <div class="panel-body">
         <pre class="brush: js">
 &lt;script type=&quot;text/javascript&quot;&gt;
-    $(&#39;#selPageSize&#39;).click(function () {
-        MVCGrid.setPageSize(&#39;PageSizeGrid&#39;, $(&#39;#selPageSize&#39;).val());
+    $(function () {
+        $(&#39;#selPageSize&#39;).change(function () {
+            MVCGrid.setPageSize(&#39;PageSizeGrid&#39;, $(&#39;#selPageSize&#39;).val());
+        });
+        // set value of dropdown to grid setting
+        $(&#39;#selPageSize&#39;).val(MVCGrid.getPageSize(&#39;PageSizeGrid&#39;));
     });
 &lt;/script&gt;
         </pre>