New RowIds feature and select column storage across data refresh

Griddly.Mvc/GriddlyButton.cs

@@ -20,6 +20,7 @@ public class GriddlyButton
         public string Target { get; set; }
         public string ConfirmMessage { get; set; }
         public bool AlignRight { get; set; }
+        public string[] RowIds { get; set; }
 
         public GriddlyButtonAction Action { get; set; }
 

Griddly.Mvc/GriddlyColumn.cs

@@ -22,7 +22,7 @@ public abstract class GriddlyColumn
 
         public GriddlyFilter Filter { get; set; }
 
-        public abstract HtmlString RenderCell(object row, bool encode = true);
+        public abstract HtmlString RenderCell(object row, GriddlySettings settings, bool encode = true);
         public abstract object RenderCellValue(object row, bool stripHtml = false);
         public abstract string RenderClassName(object row, GriddlyResultPage page);
 
@@ -86,7 +86,7 @@ public override string RenderClassName(object row, GriddlyResultPage page)
                 return null;
         }
 
-        public override HtmlString RenderCell(object row, bool encode = true)
+        public override HtmlString RenderCell(object row, GriddlySettings settings, bool encode = true)
         {
             object value = null;
 

Griddly.Mvc/GriddlySelectColumn.cs

@@ -1,4 +1,7 @@
 using System;
+using System.Linq;
+using System.Collections.Generic;
+using System.Linq.Expressions;
 using System.Web;
 using System.Web.Mvc;
 
@@ -8,19 +11,40 @@ public class GriddlySelectColumn : GriddlyColumn
     {
         public GriddlySelectColumn()
         {
-            ClassName = "griddly-select";
+            ClassName = "griddly-select align-center";
         }
-
-        public Func<object, object> Id { get; set; }
-
-        public override HtmlString RenderCell(object row, bool encode = true)
+
+        public override HtmlString RenderCell(object row, GriddlySettings settings, bool encode = true)
         {
             TagBuilder input = new TagBuilder("input");
 
             input.Attributes["name"] = "_rowselect";
-            input.Attributes["value"] = Id(row).ToString();
             input.Attributes["type"] = "checkbox";
 
+            if (settings.RowIds.Any())
+            {
+                bool valueSet = false;
+                string key = "";
+                foreach (var x in settings.RowIds)
+                {
+                    string val = "";
+                    object result = x.Value(row);
+                    if (result != null)
+                        val = result.ToString();
+
+                    input.Attributes["data-" + x.Key] = val;
+                    key += "_" + val;
+
+                    if (!valueSet)
+                    {
+                        input.Attributes["value"] = val;
+                        valueSet = true;
+                    }
+                }
+
+                input.Attributes["data-rowkey"] = key;
+            }
+
             return new HtmlString(input.ToString(TagRenderMode.SelfClosing));
         }
 
@@ -31,7 +55,7 @@ public override object RenderCellValue(object row, bool stripHtml = false)
 
         public override string RenderClassName(object row, GriddlyResultPage page)
         {
-            return null;
+            return ClassName;
         }
     }
 }

Griddly.Mvc/GriddlySettings.cs

@@ -20,6 +20,7 @@ public abstract class GriddlySettings
         public static HtmlString BoolFalseHtml = null;
         public static int? DefaultPageSize = null;
         public static bool DefaultShowFilterInitially = true;
+        public static bool DefaultShowRowSelectCount = true;
 
         public static Func<GriddlyButton, object> IconTemplate = null;
         public static Func<GriddlyResultPage, object> DefaultFooterTemplate = null;
@@ -30,23 +31,29 @@ public abstract class GriddlySettings
         public GriddlySettings()
         {
             IdProperty = "Id";
+            HasInlineFilter = true;
+
             Columns = new List<GriddlyColumn>();
             Filters = new List<GriddlyFilter>();
             Buttons = new List<GriddlyButton>();
+            RowIds = new Dictionary<string, Func<object, object>>();
+
             ClassName = DefaultClassName;
             TableClassName = DefaultTableClassName;
             FooterTemplate = DefaultFooterTemplate;
             PageSize = DefaultPageSize;
             ShowFilterInitially = DefaultShowFilterInitially;
-            HasInlineFilter = true;
+            ShowRowSelectCount = DefaultShowRowSelectCount;
         }
 
+        public string[] DefaultRowIds { get; set; }
         public string IdProperty { get; set; }
         public string Title { get; set; }
         public string ClassName { get; set; }
         public string TableClassName { get; set; }
         public string OnClientRefresh { get; set; }
         public bool ShowFilterInitially { get; set; }
+        public bool ShowRowSelectCount { get; set; }
 
         public int? PageSize { get; set; }
         public int? MaxPageSize { get; set; }
@@ -68,6 +75,8 @@ public GriddlySettings()
 
         public bool HasInlineFilter { get; set; }
 
+        public Dictionary<string, Func<object, object>> RowIds { get; protected set; }
+
         public virtual bool HasRowClickUrl
         {
             get { return RowClickUrl != null; }
@@ -88,6 +97,19 @@ public virtual object RenderRowClass(object o)
             return RowClass(o);
         }
 
+        public GriddlySettings RowId(Expression<Func<object, object>> expression, string name = null)
+        {
+            if (name == null)
+            {
+                var meta = ModelMetadata.FromLambdaExpression(expression, new ViewDataDictionary<object>());
+                name = ExpressionHelper.GetExpressionText(expression);
+            }
+
+            RowIds[name ?? "id"] = expression.Compile();
+
+            return this;
+        }
+
         public GriddlySettings Add(GriddlyColumn column, Func<GriddlyColumn, GriddlyFilter> filter = null)
         {
             if (filter != null)
@@ -125,7 +147,7 @@ public GriddlySettings Add(GriddlyButton button)
                 });
         }*/
 
-        public GriddlySettings Button(Func<object, object> argumentTemplate, string caption, string icon = null, GriddlyButtonAction action = GriddlyButtonAction.Navigate, bool? enableOnSelection = null, string className = null, string target = null)
+        public GriddlySettings Button(Func<object, object> argumentTemplate, string caption, string icon = null, GriddlyButtonAction action = GriddlyButtonAction.Navigate, bool? enableOnSelection = null, string className = null, string target = null, string[] rowIds = null)
         {
             if (enableOnSelection == null)
                 enableOnSelection = (action == GriddlyButtonAction.Ajax || action == GriddlyButtonAction.AjaxBulk || action == GriddlyButtonAction.Post);
@@ -137,13 +159,14 @@ public GriddlySettings Button(Func<object, object> argumentTemplate, string capt
                 Icon = icon,
                 Action = action,
                 EnableOnSelection = enableOnSelection.Value,
-                Target = target
+                Target = target,
+                RowIds = rowIds
             };
 
             return Add(button);
         }
 
-        public GriddlySettings Button(string argument, string caption, string icon = null, GriddlyButtonAction action = GriddlyButtonAction.Navigate, bool? enableOnSelection = null, string className = null, string target = null)
+        public GriddlySettings Button(string argument, string caption, string icon = null, GriddlyButtonAction action = GriddlyButtonAction.Navigate, bool? enableOnSelection = null, string className = null, string target = null, string[] rowIds = null)
         {
             if (enableOnSelection == null)
                 enableOnSelection = (action == GriddlyButtonAction.Ajax || action == GriddlyButtonAction.AjaxBulk || action == GriddlyButtonAction.Post);
@@ -155,7 +178,8 @@ public GriddlySettings Button(string argument, string caption, string icon = nul
                 Icon = icon,
                 Action = action,
                 EnableOnSelection = enableOnSelection.Value,
-                Target = target
+                Target = target,
+                RowIds = rowIds
             };
 
             return Add(button);
@@ -169,11 +193,26 @@ public GriddlySettings ButtonSeparator()
             });
         }
 
-        public GriddlySettings SelectColumn(Func<object, object> id)
+        public GriddlySettings SelectColumn(Expression<Func<object, object>> id, object summaryValue = null)
         {
+            RowId(id, "id");
+
             return Add(new GriddlySelectColumn()
             {
-                Id = id
+                SummaryValue = summaryValue
+            });
+        }
+
+        public GriddlySettings SelectColumn(Dictionary<string, Func<object, object>> ids, object summaryValue = null)
+        {
+            foreach (var x in ids)
+            {
+                RowIds[x.Key] = x.Value;
+            }
+
+            return Add(new GriddlySelectColumn()
+            {
+                SummaryValue = summaryValue
             });
         }
 
@@ -242,6 +281,19 @@ public class GriddlySettings<TRow> : GriddlySettings
                     base.RowClass = null;
             }
         }
+
+        public GriddlySettings<TRow> RowId(Expression<Func<TRow, object>> expression, string name = null)
+        {
+            if (name == null)
+            {
+                var meta = ModelMetadata.FromLambdaExpression(expression, new ViewDataDictionary<TRow>());
+                name = ExpressionHelper.GetExpressionText(expression);
+            }
+
+            RowIds[name ?? "id"] = (x) => expression.Compile()((TRow)x);
+
+            return this;
+        }
 
         public GriddlySettings<TRow> Column<TProperty>(Expression<Func<TRow, TProperty>> expression, string caption = null, string format = null, string expressionString = null, SortDirection? defaultSort = null, string className = null, bool isExportOnly = false, string width = null, SummaryAggregateFunction? summaryFunction = null, object summaryValue = null, Func<TRow, object> template = null, Func<GriddlyColumn, GriddlyFilter> filter = null)
         {
@@ -330,26 +382,42 @@ public GriddlySettings<TRow> Column(string caption = null, string format = null,
         //    return this;
         //}
 
-        public GriddlySettings<TRow> SelectColumn(Func<TRow, object> id, object summaryValue = null)
+        public GriddlySettings<TRow> SelectColumn(Expression<Func<TRow, object>> id, object summaryValue = null)
         {
+            RowId(id, "id");
+
             Add(new GriddlySelectColumn()
             {
-                Id = (x) => id((TRow)x),
-                ClassName = "align-center",
                 SummaryValue = summaryValue
             });
 
             return this;
         }
 
-        public GriddlySettings<TRow> Button<TModel>(Func<TModel, object> argumentTemplate, string caption, string icon = null, GriddlyButtonAction action = GriddlyButtonAction.Navigate)
+        public GriddlySettings<TRow> SelectColumn(Dictionary<string, Func<TRow, object>> ids, object summaryValue = null)
+        {
+            foreach (var x in ids)
+            {
+                RowIds[x.Key] = (z) => x.Value((TRow)z);
+            }
+
+            Add(new GriddlySelectColumn()
+            {
+                SummaryValue = summaryValue
+            });
+
+            return this;
+        }
+
+        public GriddlySettings<TRow> Button<TModel>(Func<TModel, object> argumentTemplate, string caption, string icon = null, GriddlyButtonAction action = GriddlyButtonAction.Navigate, string[] rowIds = null)
         {
             Add(new GriddlyButton()
             {
                 ArgumentTemplate = (x) => argumentTemplate((TModel)x),
                 Text = caption,
                 Icon = icon,
-                Action = action
+                Action = action,
+                RowIds = rowIds
             });
 
             return this;

Griddly/Controllers/HomeController.cs

@@ -115,14 +115,16 @@ static List<TestGridItem> BuildTestData()
             {
                 items.Add(new TestGridItem()
                 {
+                    Id = (long)i,
                     FirstName = Name.GetFirstName(),
                     LastName = Name.GetLastName(),
                     Company = Company.GetName(),
                     Address = r.Next(short.MaxValue) + " " + Address.GetStreetName(),
                     City = Address.GetCity(),
                     State = Address.GetUSState(),
                     PostalCode = Address.GetZipCode(),
-                    Test = (decimal)(r.NextDouble() * 10000)
+                    Test = (decimal)(r.NextDouble() * 10000),
+                    NullThing = (string)null,
                 });
             }
 

Griddly/Models/TestGridItem.cs

@@ -4,6 +4,7 @@ namespace Griddly.Models
 {
     public class TestGridItem
     {
+        public long? Id { get; set; }
         public decimal? Test { get; set; }
         public string FirstName { get; set; }
         public string LastName { get; set; }
@@ -12,6 +13,7 @@ public class TestGridItem
         public string City { get; set; }
         public string State { get; set; }
         public string PostalCode { get; set; }
+        public string NullThing { get; set; }
 
         public int PostalCodePrefix
         {