Updated GitHub Sample.

Binding MS SQL database using CustomAdaptor/CustomAdaptor_MSSQL/CustomAdaptor_MSSQL.sln

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+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.13.35818.85
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CustomAdaptor_MSSQL", "CustomAdaptor_MSSQL\CustomAdaptor_MSSQL.csproj", "{02538732-B5AE-4508-AB76-FC1D4EC8F974}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{02538732-B5AE-4508-AB76-FC1D4EC8F974}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{02538732-B5AE-4508-AB76-FC1D4EC8F974}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{02538732-B5AE-4508-AB76-FC1D4EC8F974}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{02538732-B5AE-4508-AB76-FC1D4EC8F974}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {C9292693-ADEC-4C4F-877A-4B7F2DF23000}
+	EndGlobalSection
+EndGlobal

Binding MS SQL database using CustomAdaptor/CustomAdaptor_MSSQL/CustomAdaptor_MSSQL/Controllers/GridController.cs

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+using Microsoft.AspNetCore.Mvc;
+using System.ComponentModel.DataAnnotations;
+using System.Data;
+using Syncfusion.EJ2.Base;
+using Microsoft.Data.SqlClient;
+
+namespace CustomAdaptor_MSSQL.Server.Controllers
+{
+    [ApiController]
+    public class GridController : ControllerBase
+    {
+        string ConnectionString = @"<Enter a valid connection string>";
+
+        /// <summary>
+        /// Processes the DataManager request to perform searching, filtering, sorting, and paging operations.
+        /// </summary>
+        /// <param name="DataManagerRequest">Contains the details of the data operation requested.</param>
+        /// <returns>Returns a JSON object with the filtered, sorted, and paginated data along with the total record count.</returns>
+        [HttpPost]
+        [Route("api/[controller]")]
+        public object Post([FromBody] DataManagerRequest DataManagerRequest)
+        {
+            // Retrieve data from the data source (e.g., database).
+            IQueryable<Orders> DataSource = GetOrderData().AsQueryable();
+
+            // Initialize QueryableOperation instance.
+            QueryableOperation queryableOperation = new QueryableOperation();
+
+            // Handling searching operation.
+            if (DataManagerRequest.Search != null && DataManagerRequest.Search.Count > 0)
+            {
+                DataSource = queryableOperation.PerformSearching(DataSource, DataManagerRequest.Search);
+                // Add custom logic here if needed and remove above method.
+            }
+
+            // Handling filtering operation.
+            if (DataManagerRequest.Where != null && DataManagerRequest.Where.Count > 0)
+            {
+                foreach (WhereFilter condition in DataManagerRequest.Where)
+                {
+                    foreach (WhereFilter predicate in condition.predicates)
+                    {
+                        DataSource = queryableOperation.PerformFiltering(DataSource, DataManagerRequest.Where, predicate.Operator);
+                        // Add custom logic here if needed and remove above method.
+                    }
+                }
+            }
+
+            // Handling sorting operation.
+            if (DataManagerRequest.Sorted != null && DataManagerRequest.Sorted.Count > 0)
+            {
+                DataSource = queryableOperation.PerformSorting(DataSource, DataManagerRequest.Sorted);
+                // Add custom logic here if needed and remove above method.
+            }
+
+            // Get the total count of records.
+            int totalRecordsCount = DataSource.Count();
+
+            // Handling paging operation.
+            if (DataManagerRequest.Skip != 0)
+            {
+                DataSource = queryableOperation.PerformSkip(DataSource, DataManagerRequest.Skip);
+                // Add custom logic here if needed and remove above method.
+            }
+            if (DataManagerRequest.Take != 0)
+            {
+                DataSource = queryableOperation.PerformTake(DataSource, DataManagerRequest.Take);
+                // Add custom logic here if needed and remove above method.
+            }
+
+            // Return data based on the request.
+            return new { result = DataSource, count = totalRecordsCount };
+        }
+        /// <summary>
+        /// Retrieves the order data from the database.
+        /// </summary>    
+        /// <returns>Returns a list of orders fetched from the database.</returns>
+        [HttpGet]
+        [Route("api/[controller]")]
+        public List<Orders> GetOrderData()
+        {
+            string queryStr = "SELECT * FROM dbo.Orders ORDER BY OrderID;";
+            SqlConnection sqlConnection = new(ConnectionString);
+            sqlConnection.Open();
+            SqlCommand sqlCommand = new(queryStr, sqlConnection);
+            SqlDataAdapter DataAdapter = new(sqlCommand);
+            DataTable DataTable = new();
+            DataAdapter.Fill(DataTable);
+            sqlConnection.Close();
+
+            // Map data to a list.
+            List<Orders> dataSource = (from DataRow Data in DataTable.Rows
+                                       select new Orders()
+                                       {
+                                           OrderID = Convert.ToInt32(Data["OrderID"]),
+                                           CustomerID = Data["CustomerID"].ToString(),
+                                           EmployeeID = Convert.IsDBNull(Data["EmployeeID"]) ? 0 : Convert.ToUInt16(Data["EmployeeID"]),
+                                           ShipCity = Data["ShipCity"].ToString(),
+                                           Freight = Convert.ToDecimal(Data["Freight"])
+                                       }
+            ).ToList();
+            return dataSource;
+        }
+
+        /// <summary>
+        /// Inserts a new data item into the data collection.
+        /// </summary>
+        /// <param name="value">It contains the new record detail which is need to be inserted.</param>
+        /// <returns>Returns void.</returns>
+        [HttpPost]
+        [Route("api/[controller]/Insert")]
+        public void Insert([FromBody] CRUDModel<Orders> value)
+        {
+            //Create query to insert the specific into the database by accessing its properties.
+            string queryStr = $"Insert into Orders(CustomerID,Freight,ShipCity,EmployeeID) values('{value.value.CustomerID}','{value.value.Freight}','{value.value.ShipCity}','{value.value.EmployeeID}')";
+            SqlConnection SqlConnection = new SqlConnection(ConnectionString);
+            SqlConnection.Open();
+
+            // Execute the SQL command.
+            SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection);
+
+            // Execute this code to reflect the changes into the database.
+            SqlCommand.ExecuteNonQuery();
+            SqlConnection.Close();
+
+            // Add custom logic here if needed and remove above method.
+        }
+
+        /// <summary>
+        /// Update a existing data item from the data collection.
+        /// </summary>
+        /// <param name="value">It contains the updated record detail which is need to be updated.</param>
+        /// <returns>Returns void.</returns>
+        [HttpPost]
+        [Route("api/[controller]/Update")]
+        public void Update([FromBody] CRUDModel<Orders> value)
+        {
+            // Create query to update the changes into the database by accessing its properties.
+            string queryStr = $"Update Orders set CustomerID='{value.value.CustomerID}', Freight='{value.value.Freight}',EmployeeID='{value.value.EmployeeID}',ShipCity='{value.value.ShipCity}' where OrderID='{value.value.OrderID}'";
+            SqlConnection SqlConnection = new SqlConnection(ConnectionString);
+            SqlConnection.Open();
+
+            // Execute the SQL command.
+            SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection);
+
+            // Execute this code to reflect the changes into the database.
+            SqlCommand.ExecuteNonQuery();
+            SqlConnection.Close();
+
+            //Add custom logic here if needed and remove above method.
+        }
+
+        /// <summary>
+        /// Remove a specific data item from the data collection.
+        /// </summary>
+        /// <param name="value">It contains the specific record detail which is need to be removed.</param>
+        /// <return>Returns void.</return>
+        [HttpPost]
+        [Route("api/[controller]/Remove")]
+        public void Remove([FromBody] CRUDModel<Orders> value)
+        {
+            // Create query to remove the specific from database by passing the primary key column value.
+            string queryStr = $"Delete from Orders where OrderID={value.key}";
+            SqlConnection SqlConnection = new SqlConnection(ConnectionString);
+            SqlConnection.Open();
+
+            // Execute the SQL command.
+            SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection);
+
+            // Execute this code to reflect the changes into the database.
+            SqlCommand.ExecuteNonQuery();
+            SqlConnection.Close();
+
+            // Add custom logic here if needed and remove above method.
+        }
+
+        /// <summary>
+        /// Batch update (Insert, Update, and Delete) a collection of data items from the data collection.
+        /// </summary>
+        /// <param name="CRUDModel<T>">The set of information along with details about the CRUD actions to be executed from the database.</param>
+        /// <returns>Returns void.</returns>
+        [HttpPost]
+        [Route("api/[controller]/BatchUpdate")]
+        public IActionResult BatchUpdate([FromBody] CRUDModel<Orders> value)
+        {
+            if (value.changed != null && value.changed.Count > 0)
+            {
+                foreach (Orders Record in (IEnumerable<Orders>)value.changed)
+                {
+                    // Create query to update the changes into the database by accessing its properties.
+                    string queryStr = $"Update Orders set CustomerID='{Record.CustomerID}', Freight='{Record.Freight}',EmployeeID='{Record.EmployeeID}',ShipCity='{Record.ShipCity}' where OrderID='{Record.OrderID}'";
+                    SqlConnection SqlConnection = new SqlConnection(ConnectionString);
+                    SqlConnection.Open();
+
+                    // Execute the SQL command.
+                    SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection);
+
+                    // Execute this code to reflect the changes into the database.
+                    SqlCommand.ExecuteNonQuery();
+                    SqlConnection.Close();
+
+                    // Add custom logic here if needed and remove above method.
+                }
+            }
+            if (value.added != null && value.added.Count > 0)
+            {
+                foreach (Orders Record in (IEnumerable<Orders>)value.added)
+                {
+                    // Create query to insert the specific into the database by accessing its properties.
+                    string queryStr = $"Insert into Orders(CustomerID,Freight,ShipCity,EmployeeID) values('{Record.CustomerID}','{Record.Freight}','{Record.ShipCity}','{Record.EmployeeID}')";
+                    SqlConnection SqlConnection = new SqlConnection(ConnectionString);
+                    SqlConnection.Open();
+
+                    // Execute the SQL command.
+                    SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection);
+
+                    // Execute this code to reflect the changes into the database.
+                    SqlCommand.ExecuteNonQuery();
+                    SqlConnection.Close();
+
+                    // Add custom logic here if needed and remove above method.
+                }
+            }
+            if (value.deleted != null && value.deleted.Count > 0)
+            {
+                foreach (Orders Record in (IEnumerable<Orders>)value.deleted)
+                {
+                    // Create query to remove the specific from database by passing the primary key column value.
+                    string queryStr = $"Delete from Orders where OrderID={Record.OrderID}";
+                    SqlConnection SqlConnection = new SqlConnection(ConnectionString);
+                    SqlConnection.Open();
+
+                    // Execute the SQL command.
+                    SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection);
+
+                    // Execute this code to reflect the changes into the database.
+                    SqlCommand.ExecuteNonQuery();
+                    SqlConnection.Close();
+
+                    // Add custom logic here if needed and remove above method.
+                }
+            }
+            return new JsonResult(value);
+        }
+        public class CRUDModel<T> where T : class
+        {
+            public string? action { get; set; }
+            public string? keyColumn { get; set; }
+            public object? key { get; set; }
+            public T? value { get; set; }
+            public List<T>? added { get; set; }
+            public List<T>? changed { get; set; }
+            public List<T>? deleted { get; set; }
+            public IDictionary<string, object>? @params { get; set; }
+        }
+        public class Orders
+        {
+            [Key]
+            public int? OrderID { get; set; }
+            public string? CustomerID { get; set; }
+            public int? EmployeeID { get; set; }
+            public decimal? Freight { get; set; }
+            public string? ShipCity { get; set; }
+        }
+    }
+}

Binding MS SQL database using CustomAdaptor/CustomAdaptor_MSSQL/CustomAdaptor_MSSQL/Controllers/WeatherForecastController.cs

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+using Microsoft.AspNetCore.Mvc;
+
+namespace CustomAdaptor_MSSQL.Controllers;
+
+[ApiController]
+[Route("[controller]")]
+public class WeatherForecastController : ControllerBase
+{
+    private static readonly string[] Summaries = new[]
+    {
+        "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
+    };
+
+    private readonly ILogger<WeatherForecastController> _logger;
+
+    public WeatherForecastController(ILogger<WeatherForecastController> logger)
+    {
+        _logger = logger;
+    }
+
+    [HttpGet(Name = "GetWeatherForecast")]
+    public IEnumerable<WeatherForecast> Get()
+    {
+        return Enumerable.Range(1, 5).Select(index => new WeatherForecast
+        {
+            Date = DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
+            TemperatureC = Random.Shared.Next(-20, 55),
+            Summary = Summaries[Random.Shared.Next(Summaries.Length)]
+        })
+        .ToArray();
+    }
+}

Binding MS SQL database using CustomAdaptor/CustomAdaptor_MSSQL/CustomAdaptor_MSSQL/CustomAdaptor_MSSQL.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Data.SqlClient" Version="6.0.1" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.6.2" />
+    <PackageReference Include="Syncfusion.EJ" Version="20.4.0.44" />
+    <PackageReference Include="Syncfusion.EJ2.AspNet.Core" Version="29.1.35" />
+  </ItemGroup>
+
+</Project>

Binding MS SQL database using CustomAdaptor/CustomAdaptor_MSSQL/CustomAdaptor_MSSQL/CustomAdaptor_MSSQL.csproj.user

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ActiveDebugProfile>https</ActiveDebugProfile>
+  </PropertyGroup>
+</Project>

Binding MS SQL database using CustomAdaptor/CustomAdaptor_MSSQL/CustomAdaptor_MSSQL/CustomAdaptor_MSSQL.http

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+@CustomAdaptor_MSSQL_HostAddress = http://localhost:5270
+
+GET {{CustomAdaptor_MSSQL_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

Binding MS SQL database using CustomAdaptor/CustomAdaptor_MSSQL/CustomAdaptor_MSSQL/Program.cs

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+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+app.UseDefaultFiles();
+app.UseStaticFiles();
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();