Improved

modules/identity/src/Volo.Abp.PermissionManagement.Domain.Identity/Volo/Abp/PermissionManagement/Identity/RolePermissionManagementProvider.cs

@@ -38,11 +38,11 @@ namespace Volo.Abp.PermissionManagement.Identity
         public override async Task<MultiplePermissionValueProviderGrantInfo> CheckAsync(string[] names, string providerName, string providerKey)
         {
             var multiplePermissionValueProviderGrantInfo = new MultiplePermissionValueProviderGrantInfo(names);
-            List<PermissionGrant> permissionGrants = null;
+            var permissionGrants = new List<PermissionGrant>();
 
             if (providerName == Name)
             {
-                 permissionGrants = await PermissionGrantRepository.GetListAsync(names, providerName, providerKey);
+                 permissionGrants.AddRange(await PermissionGrantRepository.GetListAsync(names, providerName, providerKey));
 
             }
 
@@ -53,11 +53,12 @@ namespace Volo.Abp.PermissionManagement.Identity
 
                 foreach (var roleName in roleNames)
                 {
-                    permissionGrants = await PermissionGrantRepository.GetListAsync(names, Name, roleName);
+                    permissionGrants.AddRange(await PermissionGrantRepository.GetListAsync(names, Name, roleName));
                 }
             }
 
-            if (permissionGrants == null)
+            permissionGrants = permissionGrants.Distinct().ToList();
+            if (!permissionGrants.Any())
             {
                 return multiplePermissionValueProviderGrantInfo;
             }

modules/permission-management/src/Volo.Abp.PermissionManagement.Application/Volo/Abp/PermissionManagement/PermissionAppService.cs

@@ -69,6 +69,11 @@ namespace Volo.Abp.PermissionManagement
                     }
                 }
 
+                if (!neededCheckPermissions.Any())
+                {
+                    return result;
+                }
+
                 var grantInfoDtos = neededCheckPermissions.Select(x => new PermissionGrantInfoDto
                 {
                     Name = x.Name,

modules/permission-management/src/Volo.Abp.PermissionManagement.Domain/Volo/Abp/PermissionManagement/PermissionManagementProvider.cs

@@ -44,10 +44,8 @@ namespace Volo.Abp.PermissionManagement
 
             foreach (var permissionName in names)
             {
-                if (permissionGrants.Any(x => x.Name == permissionName))
-                {
-                    multiplePermissionValueProviderGrantInfo.Result[permissionName] = new PermissionValueProviderGrantInfo(true, providerKey);
-                }
+                var isGrant = permissionGrants.Any(x => x.Name == permissionName);
+                multiplePermissionValueProviderGrantInfo.Result[permissionName] = new PermissionValueProviderGrantInfo(isGrant, providerKey);
             }
 
             return multiplePermissionValueProviderGrantInfo;

modules/permission-management/src/Volo.Abp.PermissionManagement.Domain/Volo/Abp/PermissionManagement/PermissionManager.cs

@@ -73,14 +73,12 @@ namespace Volo.Abp.PermissionManagement
 
         public virtual async Task<List<PermissionWithGrantedProviders>> GetAllAsync(string providerName, string providerKey)
         {
-            var results = new List<PermissionWithGrantedProviders>();
+            var permissionDefinitions = PermissionDefinitionManager.GetPermissions().ToArray();
 
-            foreach (var permissionDefinition in PermissionDefinitionManager.GetPermissions())
-            {
-                results.Add(await GetInternalAsync(permissionDefinition, providerName, providerKey));
-            }
+            var multiplePermissionWithGrantedProviders = await GetInternalAsync(permissionDefinitions, providerName, providerKey);
+
+            return multiplePermissionWithGrantedProviders.Result;
 
-            return results;
         }
 
         public virtual async Task SetAsync(string permissionName, string providerName, string providerKey, bool isGranted)
@@ -173,6 +171,11 @@ namespace Volo.Abp.PermissionManagement
                 }
             }
 
+            if (!neededCheckPermissions.Any())
+            {
+                return multiplePermissionWithGrantedProviders;
+            }
+
             foreach (var provider in ManagementProviders)
             {
                 permissionNames = neededCheckPermissions.Select(x => x.Name).ToArray();

templates/app/aspnet-core/src/MyCompanyName.MyProjectName.Application.Contracts/Permissions/MyProjectNamePermissionDefinitionProvider.cs

@@ -11,7 +11,28 @@ namespace MyCompanyName.MyProjectName.Permissions
             var myGroup = context.AddGroup(MyProjectNamePermissions.GroupName);
 
             //Define your own permissions here. Example:
-            //myGroup.AddPermission(MyProjectNamePermissions.MyPermission1, L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission1", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission2", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission3", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission4", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission5", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission6", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission7", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission8", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission9", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission10", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission11", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission12", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission13", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission14", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission15", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission16", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission17", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission18", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission19", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission20", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission21", L("Permission:MyPermission1"));
+            myGroup.AddPermission("permission22", L("Permission:MyPermission1"));
         }
 
         private static LocalizableString L(string name)