fix(client): Remove HttpMethod restriction in DataServiceContext.ValidateExecuteParameters

src/Microsoft.OData.Client/DataServiceContext.cs

@@ -3836,7 +3836,7 @@ private void ValidateSaveChangesOptions(SaveChangesOptions options)
         /// </summary>
         /// <typeparam name="TElement">element type. See Execute method for more details.</typeparam>
         /// <param name="requestUri">request to execute</param>
-        /// <param name="httpMethod">HttpMethod to use. Only GET and POST are supported if operation parameters are not empty.</param>
+        /// <param name="httpMethod">HttpMethod to use</param>
         /// <param name="singleResult">If set to true, indicates that a single result is expected as a response.</param>
         /// <param name="bodyOperationParameters">The list of body operation parameters to be returned.</param>
         /// <param name="uriOperationParameters">The list of uri operation parameters to be returned.</param>
@@ -3849,13 +3849,6 @@ private void ValidateExecuteParameters<TElement>(
             out List<UriOperationParameter> uriOperationParameters,
             params OperationParameter[] operationParameters)
         {
-            if (string.CompareOrdinal(XmlConstants.HttpMethodGet, httpMethod) != 0 &&
-                string.CompareOrdinal(XmlConstants.HttpMethodPost, httpMethod) != 0 &&
-                string.CompareOrdinal(XmlConstants.HttpMethodDelete, httpMethod) != 0)
-            {
-                throw new ArgumentException(Strings.Context_ExecuteExpectsGetOrPostOrDelete, nameof(httpMethod));
-            }
-
             if (ClientTypeUtil.TypeOrElementTypeIsStructured(typeof(TElement)))
             {
                 singleResult = null;

src/Microsoft.OData.Client/Microsoft.OData.Client.Common.txt

@@ -75,7 +75,6 @@ Context_MissingOperationParameterName=The Name property of an OperationParameter
 Context_DuplicateUriOperationParameterName=Multiple uri operation parameters were found with the same name. Uri operation parameter names must be unique.
 Context_DuplicateBodyOperationParameterName=Multiple body operation parameters were found with the same name. Body operation parameter names must be unique.
 Context_NullKeysAreNotSupported=The serialized resource has a null value in key member '{0}'. Null values are not supported in key members.
-Context_ExecuteExpectsGetOrPostOrDelete=The HttpMethod must be GET, POST or DELETE.
 Context_EndExecuteExpectedVoidResponse=EndExecute overload for void service operations and actions received a non-void response from the server.
 Context_NullElementInOperationParameterArray=The operation parameters array contains a null element which is not allowed.
 Context_EntityMetadataBuilderIsRequired=An implementation of ODataEntityMetadataBuilder is required, but a null value was returned from GetEntityMetadataBuilder.

src/Microsoft.OData.Client/Microsoft.OData.Client.cs

@@ -85,7 +85,6 @@ internal sealed class TextRes {
         internal const string Context_DuplicateUriOperationParameterName = "Context_DuplicateUriOperationParameterName";
         internal const string Context_DuplicateBodyOperationParameterName = "Context_DuplicateBodyOperationParameterName";
         internal const string Context_NullKeysAreNotSupported = "Context_NullKeysAreNotSupported";
-        internal const string Context_ExecuteExpectsGetOrPostOrDelete = "Context_ExecuteExpectsGetOrPostOrDelete";
         internal const string Context_EndExecuteExpectedVoidResponse = "Context_EndExecuteExpectedVoidResponse";
         internal const string Context_NullElementInOperationParameterArray = "Context_NullElementInOperationParameterArray";
         internal const string Context_EntityMetadataBuilderIsRequired = "Context_EntityMetadataBuilderIsRequired";

src/Microsoft.OData.Client/Microsoft.OData.Client.txt

@@ -75,7 +75,6 @@ Context_MissingOperationParameterName=The Name property of an OperationParameter
 Context_DuplicateUriOperationParameterName=Multiple uri operation parameters were found with the same name. Uri operation parameter names must be unique.
 Context_DuplicateBodyOperationParameterName=Multiple body operation parameters were found with the same name. Body operation parameter names must be unique.
 Context_NullKeysAreNotSupported=The serialized resource has a null value in key member '{0}'. Null values are not supported in key members.
-Context_ExecuteExpectsGetOrPostOrDelete=The HttpMethod must be GET, POST or DELETE.
 Context_EndExecuteExpectedVoidResponse=EndExecute overload for void service operations and actions received a non-void response from the server.
 Context_NullElementInOperationParameterArray=The operation parameters array contains a null element which is not allowed.
 Context_EntityMetadataBuilderIsRequired=An implementation of ODataEntityMetadataBuilder is required, but a null value was returned from GetEntityMetadataBuilder.

src/Microsoft.OData.Client/Parameterized.Microsoft.OData.Client.cs

@@ -645,17 +645,6 @@ internal static string Context_NullKeysAreNotSupported(object p0)
             return Microsoft.OData.Client.TextRes.GetString(Microsoft.OData.Client.TextRes.Context_NullKeysAreNotSupported, p0);
         }
 
-        /// <summary>
-        /// A string like "The HttpMethod must be GET, POST or DELETE."
-        /// </summary>
-        internal static string Context_ExecuteExpectsGetOrPostOrDelete
-        {
-            get
-            {
-                return Microsoft.OData.Client.TextRes.GetString(Microsoft.OData.Client.TextRes.Context_ExecuteExpectsGetOrPostOrDelete);
-            }
-        }
-
         /// <summary>
         /// A string like "EndExecute overload for void service operations and actions received a non-void response from the server."
         /// </summary>