Allow initial search values

Author: eyesnz

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

@@ -57,7 +57,8 @@
                     "success": fnCallback
                 });
             },
-            "aoColumnDefs" : @Html.Raw(Model.ColumnDefsString)
+            "aoColumnDefs" : @Html.Raw(Model.ColumnDefsString),
+            "aoSearchCols": @Html.Raw(Model.ColumnInitialSearchString)
                 @Html.Raw(!string.IsNullOrWhiteSpace(Model.JsOptionsString) ? ", " + Model.JsOptionsString : "")
             @if (!string.IsNullOrEmpty(Model.Language))
             {
@@ -72,7 +73,7 @@
                 </text>
             }
                     });
-            @if (Model.ColumnFilter)
+        @if (Model.ColumnFilter)
             {
                 <text>
         dt.columnFilter(@Html.Raw(Model.ColumnFilterVm.ToString()));

Mvc.JQuery.Datatables/ColDef.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 
 namespace Mvc.JQuery.Datatables
 {
@@ -22,6 +23,9 @@ protected internal ColDef(Type type)
         public string MRenderFunction { get; set; }
         public FilterDef Filter { get; set; }
 
+        IDictionary<string, object> m_JsInitialSearchCols = new Dictionary<string, object>();
+        public IDictionary<string, object> JsInitialSearchCols { get { return m_JsInitialSearchCols; } }
+
         public static ColDef Create(string name, string p1, Type propertyType, bool visible = true, bool sortable = true,
             SortDirection sortDirection = SortDirection.None, string mRenderFunction = null, string pCssClass = "",
             string pCssClassHeader = "")

Mvc.JQuery.Datatables/DataTableConfigVm.cs

@@ -114,7 +114,15 @@ public string ColumnDefsString
 
         public bool AutoWidth { get; set; }
 
-        
+        public string ColumnInitialSearchString
+        {
+            get
+            {
+                return convertColumnDefsInitialSearchToJson(Columns);
+            }
+        }
+
+
 
         public string Dom
         {
@@ -225,7 +233,17 @@ public _FilterOn<DataTableConfigVm> FilterOn(string columnName, object jsOptions
             IDictionary<string, object> optionsDict = convertObjectToDictionary(jsOptions);
             return FilterOn(columnName, optionsDict); 
         }
+        public _FilterOn<DataTableConfigVm> FilterOn(string columnName, object jsOptions, object jsInitialSearchCols)
+        {
+            IDictionary<string, object> optionsDict = convertObjectToDictionary(jsOptions);
+            IDictionary<string, object> initialSearchColsDict = convertObjectToDictionary(jsInitialSearchCols);
+            return FilterOn(columnName, optionsDict, initialSearchColsDict);
+        }
         public _FilterOn<DataTableConfigVm> FilterOn(string columnName, IDictionary<string, object> jsOptions)
+        {
+            return FilterOn(columnName, jsOptions, null);
+        }
+        public _FilterOn<DataTableConfigVm> FilterOn(string columnName, IDictionary<string, object> jsOptions, IDictionary<string, object> jsInitialSearchCols)
         {
             var colDef = this.Columns.Single(c => c.Name == columnName);
             if (jsOptions != null)
@@ -235,6 +253,13 @@ public _FilterOn<DataTableConfigVm> FilterOn(string columnName, IDictionary<stri
                     colDef.Filter[jsOption.Key] = jsOption.Value;
                 }
             }
+            if (jsInitialSearchCols != null)
+            {
+                foreach (var jsInitialSearchCol in jsInitialSearchCols)
+                {
+                    colDef.JsInitialSearchCols[jsInitialSearchCol.Key] = jsInitialSearchCol.Value;
+                }
+            }
             return new _FilterOn<DataTableConfigVm>(this, colDef);
         }
 
@@ -279,6 +304,13 @@ private static string convertColumnDefsToJson(IEnumerable<ColDef> columns)
             return "[]";
         }
 
+        private static string convertColumnDefsInitialSearchToJson(IEnumerable<ColDef> columns)
+        {
+            var initialSearches = columns
+                .Select(c => c.Searchable & c.JsInitialSearchCols.Any() ? c.JsInitialSearchCols : null).ToArray();
+            return new JavaScriptSerializer().Serialize(initialSearches);
+        }
+
         private static string convertColumnSortingToJson(IEnumerable<ColDef> columns)
         {
             var sortList = columns.Select((c, idx) => c.SortDirection == SortDirection.None ? new dynamic[] { -1, "" } : (c.SortDirection == SortDirection.Ascending ? new dynamic[] { idx, "asc" } : new dynamic[] { idx, "desc" })).Where(x => x[0] > -1).ToArray();