[DataFactory]Added new features into 4.19.0 (Azure#21018)

* [DataFactory]Added new features into 4.18.0

* [DataFactory]Added new features into 4.19.0

Author: Jingshu923

eng/mgmt/mgmtmetadata/datafactory_resource-manager.txt

@@ -4,11 +4,11 @@ Commencing code generation
 Generating CSharp code
 Executing AutoRest command
 cmd.exe /c autorest.cmd https://github.com/Azure/azure-rest-api-specs/blob/master/specification/datafactory/resource-manager/readme.md --csharp --version=v2 --reflect-api-versions --tag=package-2018-06 --csharp-sdks-folder=D:\Projects\azure-sdk-for-net\sdk
-2021-04-19 06:02:05 UTC
+2021-05-12 01:26:47 UTC
 Azure-rest-api-specs repository information
 GitHub fork: Azure
 Branch:      master
-Commit:      2917973fd886553c6277b66d786dc2827d11c386
+Commit:      1c03f492f52ebd076626f2dd00af01b25bbfa727
 AutoRest information
 Requested version: v2
 Bootstrapper version:    autorest@2.0.4413

sdk/datafactory/Microsoft.Azure.Management.DataFactory/src/CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog for the Azure Data Factory V2 .NET SDK
 
+## Version 4.19.0
+###  Feature Additions
+- Support sheetIndex in excel and set sheetName from required to optional
+- Set filePattern to object type to allow expressions
+- Support user-assigned managed identity in SSIS-IR
+
 ## Version 4.18.0
 ###  Feature Additions
 - Added MongoDB/MongoDBAtlas sink

sdk/datafactory/Microsoft.Azure.Management.DataFactory/src/Customizations/ExcelDataset.cs

@@ -0,0 +1,55 @@
+using Microsoft.Rest;
+using Microsoft.Rest.Serialization;
+using Newtonsoft.Json;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Microsoft.Azure.Management.DataFactory.Models
+{
+    public partial class ExcelDataset : Dataset
+    {
+        /// <summary>
+        /// Initializes a new instance of the ExcelDataset class.
+        /// </summary>
+        /// <param name="linkedServiceName">Linked service reference.</param>
+        /// <param name="location">The location of the excel storage.</param>
+        /// <param name="sheetName">The sheet of excel file. Type: string (or
+        /// Expression with resultType string).</param>
+        /// <param name="additionalProperties">Unmatched properties from the
+        /// message are deserialized this collection</param>
+        /// <param name="description">Dataset description.</param>
+        /// <param name="structure">Columns that define the structure of the
+        /// dataset. Type: array (or Expression with resultType array),
+        /// itemType: DatasetDataElement.</param>
+        /// <param name="schema">Columns that define the physical type schema
+        /// of the dataset. Type: array (or Expression with resultType array),
+        /// itemType: DatasetSchemaDataElement.</param>
+        /// <param name="parameters">Parameters for dataset.</param>
+        /// <param name="annotations">List of tags that can be used for
+        /// describing the Dataset.</param>
+        /// <param name="folder">The folder that this Dataset is in. If not
+        /// specified, Dataset will appear at the root level.</param>
+        /// <param name="range">The partial data of one sheet. Type: string (or
+        /// Expression with resultType string).</param>
+        /// <param name="firstRowAsHeader">When used as input, treat the first
+        /// row of data as headers. When used as output,write the headers into
+        /// the output as the first row of data. The default value is false.
+        /// Type: boolean (or Expression with resultType boolean).</param>
+        /// <param name="compression">The data compression method used for the
+        /// json dataset.</param>
+        /// <param name="nullValue">The null value string. Type: string (or
+        /// Expression with resultType string).</param>
+        public ExcelDataset(LinkedServiceReference linkedServiceName, DatasetLocation location, object sheetName, IDictionary<string, object> additionalProperties = default(IDictionary<string, object>), string description = default(string), object structure = default(object), object schema = default(object), IDictionary<string, ParameterSpecification> parameters = default(IDictionary<string, ParameterSpecification>), IList<object> annotations = default(IList<object>), DatasetFolder folder = default(DatasetFolder), object range = default(object), object firstRowAsHeader = default(object), DatasetCompression compression = default(DatasetCompression), object nullValue = default(object))
+            : base(linkedServiceName, additionalProperties, description, structure, schema, parameters, annotations, folder)
+        {
+            Location = location;
+            SheetName = sheetName;
+            Range = range;
+            FirstRowAsHeader = firstRowAsHeader;
+            Compression = compression;
+            NullValue = nullValue;
+            CustomInit();
+        }
+    }
+}