add BoolSearchExpressionProvider

AspNetCoreWeb/Attributes/SearchableBoolAttribute.cs

@@ -0,0 +1,14 @@
+using JqueryDataTables.ServerSide.AspNetCoreWeb.Providers;
+using System;
+
+namespace JqueryDataTables.ServerSide.AspNetCoreWeb.Attributes
+{
+    [AttributeUsage(AttributeTargets.Property)]
+    public class SearchableBoolAttribute : SearchableAttribute
+    {
+        public SearchableBoolAttribute()
+        {
+            ExpressionProvider = new BoolSearchExpressionProvider();
+        }
+    }
+}

AspNetCoreWeb/Providers/BoolSearchExpressionProvider.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Linq.Expressions;
+
+namespace JqueryDataTables.ServerSide.AspNetCoreWeb.Providers
+{
+    public class BoolSearchExpressionProvider : ComparableSearchExpressionProvider
+    {
+        public override ConstantExpression GetValue(string input)
+        {
+            if (!bool.TryParse(input, out var value))
+            {
+                throw new ArgumentException("Invalid search value.");
+            }
+
+            return Expression.Constant(value);
+        }
+    }
+}