Added length menu options

Author: mcintyre321

Mvc.JQuery.Datatables.Example/Views/Home/_ExampleTable.cshtml

@@ -31,7 +31,12 @@
     //.FilterOn("Number").CheckBoxes(Enum.GetNames(typeof(Numbers)));
     vm.StateSave = true;
     //vm.DrawCallback = "drawCallback";
-
+    
+    //you can change the page length options... 
+    vm.LengthMenu = LengthMenuVm.Default();
+    vm.LengthMenu.RemoveAll(t => t.Item2 == 5);
+    vm.PageLength = 25; //... and set a default
+    
     if (Request.QueryString["lang"] == "de")
     {
         //vm.Language = "{ 'sUrl': '" + Url.Content("~/Content/jquery.dataTables.lang.de-DE.txt") + "' }";

Mvc.JQuery.Datatables.Templates/Mvc.JQuery.Datatables.Templates.csproj

@@ -42,6 +42,7 @@
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
+    <Reference Include="System.Web" />
     <Reference Include="System.Web.Helpers, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\Microsoft.AspNet.WebPages.3.1.0\lib\net45\System.Web.Helpers.dll</HintPath>

Mvc.JQuery.Datatables.Templates/Views/Shared/DataTable.cshtml

@@ -45,7 +45,11 @@
             "bServerSide": true,
             "bFilter": @Model.ShowSearch.ToString().ToLower(),
             "sDom": '@Html.Raw(Model.Dom)',
-            "aLengthMenu": [[5, 10, 25, 50, -1], [5, 10, 25, 50, "All"]],
+            @if (Model.LengthMenu != null) { <text>"lengthMenu": @Html.Raw(Model.LengthMenu),</text> }
+            @if (Model.PageLength.HasValue)
+            {
+                <text>"pageLength": @Html.Raw(Model.PageLength),</text>
+            }
             "bAutoWidth": @Model.AutoWidth.ToString().ToLowerInvariant(),
             "sAjaxSource": "@Html.Raw(Model.AjaxUrl)", @Html.Raw(Model.TableTools ? "\"oTableTools\" : { \"sSwfPath\": \"//cdn.datatables.net/tabletools/2.2.1/swf/copy_csv_xls_pdf.swf\" }," : "")
             "fnServerData": function(sSource, aoData, fnCallback) {

Mvc.JQuery.Datatables/DataTableConfigVm.cs

@@ -106,7 +106,8 @@ public string ColumnSortingString
         public string Language { get; set; }
 
         public string DrawCallback { get; set; }
-
+        public LengthMenuVm LengthMenu { get; set; }
+        public int? PageLength { get; set; }
 
         private bool _columnFilter;
 

Mvc.JQuery.Datatables/LengthMenuVm.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Mvc.JQuery.Datatables
+{
+    public class LengthMenuVm : List<Tuple<string, int>>
+    {
+        public LengthMenuVm()
+        {
+            
+           
+        }
+        /// <summary>
+        /// Create a lengthmenuvm with options for 5,10,25,50,All
+        /// </summary>
+        /// <returns></returns>
+        public static LengthMenuVm Default()
+        {
+            return new LengthMenuVm {Tuple.Create("5", 5), Tuple.Create("10", 10), Tuple.Create("25", 25), Tuple.Create("50", 50), Tuple.Create("All", -1)};
+        }
+
+        public override string ToString()
+        {
+            return "[[" + string.Join(", ", this.Select(pair => pair.Item2)) + "],[\"" + string.Join("\", \"", this.Select(pair => pair.Item1.Replace("\"", "\"\""))) + "\"]]";
+            
+        }
+    }
+}

Mvc.JQuery.Datatables/Mvc.JQuery.Datatables.csproj

@@ -80,6 +80,7 @@
   <ItemGroup>
     <Compile Include="DataTablesFiltering.cs" />
     <Compile Include="DataTablesFilterAttribute.cs" />
+    <Compile Include="LengthMenuVm.cs" />
     <Compile Include="Models\ColDef.cs" />
     <Compile Include="ColumnFilterSettingsVm.cs" />
     <Compile Include="DataTablesAttribute.cs" />