handle dispose table designer request (#1273)

* handle dispose table designer

* use connection string

src/Microsoft.SqlTools.ServiceLayer/TableDesigner/Contracts/Requests/DisposeTableDesignerRequest.cs

@@ -0,0 +1,24 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using Microsoft.SqlTools.Hosting.Protocol.Contracts;
+
+namespace Microsoft.SqlTools.ServiceLayer.TableDesigner.Contracts
+{
+    public class DisposeTableDesignerResponse
+    {
+    }
+
+    /// <summary>
+    /// The request to dispose the table designer.
+    /// </summary>
+    public class DisposeTableDesignerRequest
+    {
+        /// <summary>
+        /// Request definition
+        /// </summary>
+        public static readonly RequestType<TableInfo, DisposeTableDesignerResponse> Type = RequestType<TableInfo, DisposeTableDesignerResponse>.Create("tabledesigner/dispose");
+    }
+}

src/Microsoft.SqlTools.ServiceLayer/TableDesigner/Contracts/TableInfo.cs

@@ -20,6 +20,8 @@ namespace Microsoft.SqlTools.ServiceLayer.TableDesigner.Contracts
 
         public bool IsNewTable { get; set; }
 
-        public string ConnectionUri { get; set; }
+        public string ConnectionString { get; set; }
+
+        public string Id { get; set; }
     }
 }

src/Microsoft.SqlTools.ServiceLayer/TableDesigner/TableDesignerService.cs

@@ -50,6 +50,7 @@ namespace Microsoft.SqlTools.ServiceLayer.TableDesigner
             this.ServiceHost.SetRequestHandler(GetTableDesignerInfoRequest.Type, HandleGetTableDesignerInfoRequest);
             this.ServiceHost.SetRequestHandler(ProcessTableDesignerEditRequest.Type, HandleProcessTableDesignerEditRequest);
             this.ServiceHost.SetRequestHandler(SaveTableChangesRequest.Type, HandleSaveTableChangesRequest);
+            this.ServiceHost.SetRequestHandler(DisposeTableDesignerRequest.Type, HandleDisposeTableDesignerRequest);
         }
 
         private async Task HandleGetTableDesignerInfoRequest(TableInfo tableInfo, RequestContext<TableDesignerInfo> requestContext)
@@ -123,6 +124,23 @@ namespace Microsoft.SqlTools.ServiceLayer.TableDesigner
                        });
         }
 
+
+        private async Task HandleDisposeTableDesignerRequest(TableInfo tableInfo, RequestContext<DisposeTableDesignerResponse> requestContext)
+        {
+            await Task.Run(async () =>
+                       {
+                           try
+                           {
+                               // TODO: Handle the dispose table designer request.
+                               await requestContext.SendResult(new DisposeTableDesignerResponse());
+                           }
+                           catch (Exception e)
+                           {
+                               await requestContext.SendError(e);
+                           }
+                       });
+        }
+
         private void HandleAddItemRequest(ProcessTableDesignerEditRequestParams requestParams)
         {
             var property = requestParams.TableChangeInfo.Property;
@@ -138,7 +156,9 @@ namespace Microsoft.SqlTools.ServiceLayer.TableDesigner
                     default:
                         break;
                 }
-            } else {
+            }
+            else
+            {
                 // TODO: Handle the add item request on second level properties, e.g. Adding a column to an index
             }
         }