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| 1 | +using Microsoft.AspNetCore.Mvc; |
| 2 | +using System.ComponentModel.DataAnnotations; |
| 3 | +using System.Data; |
| 4 | +using Syncfusion.EJ2.Base; |
| 5 | +using Microsoft.Data.SqlClient; |
| 6 | + |
| 7 | +namespace Grid_MSSQL.Controllers |
| 8 | +{ |
| 9 | + [ApiController] |
| 10 | + public class GridController : ControllerBase |
| 11 | + { |
| 12 | + string ConnectionString = @"<Enter a valid connection string>"; |
| 13 | + |
| 14 | + /// <summary> |
| 15 | + /// Processes the DataManager request to perform searching, filtering, sorting, and paging operations. |
| 16 | + /// </summary> |
| 17 | + /// <param name="DataManagerRequest">Contains the details of the data operation requested.</param> |
| 18 | + /// <returns>Returns a JSON object with the filtered, sorted, and paginated data along with the total record count.</returns> |
| 19 | + [HttpPost] |
| 20 | + [Route("api/[controller]")] |
| 21 | + public object Post([FromBody] DataManagerRequest DataManagerRequest) |
| 22 | + { |
| 23 | + // Retrieve data from the data source (e.g., database). |
| 24 | + IQueryable<Orders> DataSource = GetOrderData().AsQueryable(); |
| 25 | + |
| 26 | + // Initialize QueryableOperation instance. |
| 27 | + QueryableOperation queryableOperation = new QueryableOperation(); |
| 28 | + |
| 29 | + // Handling searching operation. |
| 30 | + if (DataManagerRequest.Search != null && DataManagerRequest.Search.Count > 0) |
| 31 | + { |
| 32 | + DataSource = queryableOperation.PerformSearching(DataSource, DataManagerRequest.Search); |
| 33 | + // Add custom logic here if needed and remove above method. |
| 34 | + } |
| 35 | + |
| 36 | + // Handling filtering operation. |
| 37 | + if (DataManagerRequest.Where != null && DataManagerRequest.Where.Count > 0) |
| 38 | + { |
| 39 | + foreach (WhereFilter condition in DataManagerRequest.Where) |
| 40 | + { |
| 41 | + foreach (WhereFilter predicate in condition.predicates) |
| 42 | + { |
| 43 | + DataSource = queryableOperation.PerformFiltering(DataSource, DataManagerRequest.Where, predicate.Operator); |
| 44 | + // Add custom logic here if needed and remove above method. |
| 45 | + } |
| 46 | + } |
| 47 | + } |
| 48 | + |
| 49 | + // Handling sorting operation. |
| 50 | + if (DataManagerRequest.Sorted != null && DataManagerRequest.Sorted.Count > 0) |
| 51 | + { |
| 52 | + DataSource = queryableOperation.PerformSorting(DataSource, DataManagerRequest.Sorted); |
| 53 | + // Add custom logic here if needed and remove above method. |
| 54 | + } |
| 55 | + |
| 56 | + // Get the total count of records. |
| 57 | + int totalRecordsCount = DataSource.Count(); |
| 58 | + |
| 59 | + // Handling paging operation. |
| 60 | + if (DataManagerRequest.Skip != 0) |
| 61 | + { |
| 62 | + DataSource = queryableOperation.PerformSkip(DataSource, DataManagerRequest.Skip); |
| 63 | + // Add custom logic here if needed and remove above method. |
| 64 | + } |
| 65 | + if (DataManagerRequest.Take != 0) |
| 66 | + { |
| 67 | + DataSource = queryableOperation.PerformTake(DataSource, DataManagerRequest.Take); |
| 68 | + // Add custom logic here if needed and remove above method. |
| 69 | + } |
| 70 | + |
| 71 | + // Return data based on the request. |
| 72 | + return new { result = DataSource, count = totalRecordsCount }; |
| 73 | + } |
| 74 | + /// <summary> |
| 75 | + /// Retrieves the order data from the database. |
| 76 | + /// </summary> |
| 77 | + /// <returns>Returns a list of orders fetched from the database.</returns> |
| 78 | + [HttpGet] |
| 79 | + [Route("api/[controller]")] |
| 80 | + public List<Orders> GetOrderData() |
| 81 | + { |
| 82 | + string queryStr = "SELECT * FROM dbo.Orders ORDER BY OrderID;"; |
| 83 | + SqlConnection sqlConnection = new(ConnectionString); |
| 84 | + sqlConnection.Open(); |
| 85 | + SqlCommand sqlCommand = new(queryStr, sqlConnection); |
| 86 | + SqlDataAdapter DataAdapter = new(sqlCommand); |
| 87 | + DataTable DataTable = new(); |
| 88 | + DataAdapter.Fill(DataTable); |
| 89 | + sqlConnection.Close(); |
| 90 | + |
| 91 | + // Map data to a list. |
| 92 | + List<Orders> dataSource = (from DataRow Data in DataTable.Rows |
| 93 | + select new Orders() |
| 94 | + { |
| 95 | + OrderID = Convert.ToInt32(Data["OrderID"]), |
| 96 | + CustomerID = Data["CustomerID"].ToString(), |
| 97 | + EmployeeID = Convert.IsDBNull(Data["EmployeeID"]) ? 0 : Convert.ToUInt16(Data["EmployeeID"]), |
| 98 | + ShipCity = Data["ShipCity"].ToString(), |
| 99 | + Freight = Convert.ToDecimal(Data["Freight"]) |
| 100 | + } |
| 101 | + ).ToList(); |
| 102 | + return dataSource; |
| 103 | + } |
| 104 | + |
| 105 | + /// <summary> |
| 106 | + /// Inserts a new data item into the data collection. |
| 107 | + /// </summary> |
| 108 | + /// <param name="value">It contains the new record detail which is need to be inserted.</param> |
| 109 | + /// <returns>Returns void.</returns> |
| 110 | + [HttpPost] |
| 111 | + [Route("api/[controller]/Insert")] |
| 112 | + public void Insert([FromBody] CRUDModel<Orders> value) |
| 113 | + { |
| 114 | + //Create query to insert the specific into the database by accessing its properties. |
| 115 | + string queryStr = $"Insert into Orders(CustomerID,Freight,ShipCity,EmployeeID) values('{value.value.CustomerID}','{value.value.Freight}','{value.value.ShipCity}','{value.value.EmployeeID}')"; |
| 116 | + SqlConnection SqlConnection = new SqlConnection(ConnectionString); |
| 117 | + SqlConnection.Open(); |
| 118 | + |
| 119 | + // Execute the SQL command. |
| 120 | + SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection); |
| 121 | + |
| 122 | + // Execute this code to reflect the changes into the database. |
| 123 | + SqlCommand.ExecuteNonQuery(); |
| 124 | + SqlConnection.Close(); |
| 125 | + |
| 126 | + // Add custom logic here if needed and remove above method. |
| 127 | + } |
| 128 | + |
| 129 | + /// <summary> |
| 130 | + /// Update a existing data item from the data collection. |
| 131 | + /// </summary> |
| 132 | + /// <param name="value">It contains the updated record detail which is need to be updated.</param> |
| 133 | + /// <returns>Returns void.</returns> |
| 134 | + [HttpPost] |
| 135 | + [Route("api/[controller]/Update")] |
| 136 | + public void Update([FromBody] CRUDModel<Orders> value) |
| 137 | + { |
| 138 | + // Create query to update the changes into the database by accessing its properties. |
| 139 | + 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}'"; |
| 140 | + SqlConnection SqlConnection = new SqlConnection(ConnectionString); |
| 141 | + SqlConnection.Open(); |
| 142 | + |
| 143 | + // Execute the SQL command. |
| 144 | + SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection); |
| 145 | + |
| 146 | + // Execute this code to reflect the changes into the database. |
| 147 | + SqlCommand.ExecuteNonQuery(); |
| 148 | + SqlConnection.Close(); |
| 149 | + |
| 150 | + //Add custom logic here if needed and remove above method. |
| 151 | + } |
| 152 | + |
| 153 | + /// <summary> |
| 154 | + /// Remove a specific data item from the data collection. |
| 155 | + /// </summary> |
| 156 | + /// <param name="value">It contains the specific record detail which is need to be removed.</param> |
| 157 | + /// <return>Returns void.</return> |
| 158 | + [HttpPost] |
| 159 | + [Route("api/[controller]/Remove")] |
| 160 | + public void Remove([FromBody] CRUDModel<Orders> value) |
| 161 | + { |
| 162 | + // Create query to remove the specific from database by passing the primary key column value. |
| 163 | + string queryStr = $"Delete from Orders where OrderID={value.key}"; |
| 164 | + SqlConnection SqlConnection = new SqlConnection(ConnectionString); |
| 165 | + SqlConnection.Open(); |
| 166 | + |
| 167 | + // Execute the SQL command. |
| 168 | + SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection); |
| 169 | + |
| 170 | + // Execute this code to reflect the changes into the database. |
| 171 | + SqlCommand.ExecuteNonQuery(); |
| 172 | + SqlConnection.Close(); |
| 173 | + |
| 174 | + // Add custom logic here if needed and remove above method. |
| 175 | + } |
| 176 | + |
| 177 | + /// <summary> |
| 178 | + /// Batch update (Insert, Update, and Delete) a collection of data items from the data collection. |
| 179 | + /// </summary> |
| 180 | + /// <param name="CRUDModel<T>">The set of information along with details about the CRUD actions to be executed from the database.</param> |
| 181 | + /// <returns>Returns void.</returns> |
| 182 | + [HttpPost] |
| 183 | + [Route("api/[controller]/BatchUpdate")] |
| 184 | + public IActionResult BatchUpdate([FromBody] CRUDModel<Orders> value) |
| 185 | + { |
| 186 | + if (value.changed != null && value.changed.Count > 0) |
| 187 | + { |
| 188 | + foreach (Orders Record in (IEnumerable<Orders>)value.changed) |
| 189 | + { |
| 190 | + // Create query to update the changes into the database by accessing its properties. |
| 191 | + string queryStr = $"Update Orders set CustomerID='{Record.CustomerID}', Freight='{Record.Freight}',EmployeeID='{Record.EmployeeID}',ShipCity='{Record.ShipCity}' where OrderID='{Record.OrderID}'"; |
| 192 | + SqlConnection SqlConnection = new SqlConnection(ConnectionString); |
| 193 | + SqlConnection.Open(); |
| 194 | + |
| 195 | + // Execute the SQL command. |
| 196 | + SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection); |
| 197 | + |
| 198 | + // Execute this code to reflect the changes into the database. |
| 199 | + SqlCommand.ExecuteNonQuery(); |
| 200 | + SqlConnection.Close(); |
| 201 | + |
| 202 | + // Add custom logic here if needed and remove above method. |
| 203 | + } |
| 204 | + } |
| 205 | + if (value.added != null && value.added.Count > 0) |
| 206 | + { |
| 207 | + foreach (Orders Record in (IEnumerable<Orders>)value.added) |
| 208 | + { |
| 209 | + // Create query to insert the specific into the database by accessing its properties. |
| 210 | + string queryStr = $"Insert into Orders(CustomerID,Freight,ShipCity,EmployeeID) values('{Record.CustomerID}','{Record.Freight}','{Record.ShipCity}','{Record.EmployeeID}')"; |
| 211 | + SqlConnection SqlConnection = new SqlConnection(ConnectionString); |
| 212 | + SqlConnection.Open(); |
| 213 | + |
| 214 | + // Execute the SQL command. |
| 215 | + SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection); |
| 216 | + |
| 217 | + // Execute this code to reflect the changes into the database. |
| 218 | + SqlCommand.ExecuteNonQuery(); |
| 219 | + SqlConnection.Close(); |
| 220 | + |
| 221 | + // Add custom logic here if needed and remove above method. |
| 222 | + } |
| 223 | + } |
| 224 | + if (value.deleted != null && value.deleted.Count > 0) |
| 225 | + { |
| 226 | + foreach (Orders Record in (IEnumerable<Orders>)value.deleted) |
| 227 | + { |
| 228 | + // Create query to remove the specific from database by passing the primary key column value. |
| 229 | + string queryStr = $"Delete from Orders where OrderID={Record.OrderID}"; |
| 230 | + SqlConnection SqlConnection = new SqlConnection(ConnectionString); |
| 231 | + SqlConnection.Open(); |
| 232 | + |
| 233 | + // Execute the SQL command. |
| 234 | + SqlCommand SqlCommand = new SqlCommand(queryStr, SqlConnection); |
| 235 | + |
| 236 | + // Execute this code to reflect the changes into the database. |
| 237 | + SqlCommand.ExecuteNonQuery(); |
| 238 | + SqlConnection.Close(); |
| 239 | + |
| 240 | + // Add custom logic here if needed and remove above method. |
| 241 | + } |
| 242 | + } |
| 243 | + return new JsonResult(value); |
| 244 | + } |
| 245 | + public class Orders |
| 246 | + { |
| 247 | + [Key] |
| 248 | + public int? OrderID { get; set; } |
| 249 | + public string? CustomerID { get; set; } |
| 250 | + public int? EmployeeID { get; set; } |
| 251 | + public decimal? Freight { get; set; } |
| 252 | + public string? ShipCity { get; set; } |
| 253 | + public string? ShipCountry { get; set; } |
| 254 | + } |
| 255 | + public class CRUDModel<T> where T : class |
| 256 | + { |
| 257 | + public string? action { get; set; } |
| 258 | + public string? keyColumn { get; set; } |
| 259 | + public object? key { get; set; } |
| 260 | + public T? value { get; set; } |
| 261 | + public List<T>? added { get; set; } |
| 262 | + public List<T>? changed { get; set; } |
| 263 | + public List<T>? deleted { get; set; } |
| 264 | + public IDictionary<string, object>? @params { get; set; } |
| 265 | + } |
| 266 | + } |
| 267 | +} |
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