Add conn string name for all modules.

src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/IdentityDbContext.cs

@@ -1,4 +1,5 @@
 using Microsoft.EntityFrameworkCore;
+using Volo.Abp.Data;
 using Volo.Abp.EntityFrameworkCore;
 
 namespace Volo.Abp.Identity.EntityFrameworkCore
@@ -6,6 +7,7 @@ namespace Volo.Abp.Identity.EntityFrameworkCore
     /// <summary>
     /// Base class for the Entity Framework database context used for identity.
     /// </summary>
+    [ConnectionStringName("AbpIdentity")]
     public class IdentityDbContext : AbpDbContext<IdentityDbContext>, IIdentityDbContext
     {
         public static string TablePrefix { get; set; } = AbpIdentityConsts.DefaultDbTablePrefix;

src/Volo.Abp.IdentityServer.EntityFrameworkCore/Volo/Abp/IdentityServer/EntityFrameworkCore/IdentityServerDbContext.cs

@@ -1,4 +1,5 @@
 using Microsoft.EntityFrameworkCore;
+using Volo.Abp.Data;
 using Volo.Abp.EntityFrameworkCore;
 using Volo.Abp.IdentityServer.ApiResources;
 using Volo.Abp.IdentityServer.Clients;
@@ -7,6 +8,7 @@ using Volo.Abp.IdentityServer.IdentityResources;
 
 namespace Volo.Abp.IdentityServer.EntityFrameworkCore
 {
+    [ConnectionStringName("AbpIdentityServer")]
     public class IdentityServerDbContext : AbpDbContext<IdentityServerDbContext>, IIdentityServerDbContext
     {
         public static string TablePrefix { get; set; } = AbpIdentityServerConsts.DefaultDbTablePrefix;

src/Volo.Abp.MultiTenancy.EntityFrameworkCore/Volo/Abp/MultiTenancy/EntityFrameworkCore/MultiTenancyDbContext.cs

@@ -1,8 +1,10 @@
 using Microsoft.EntityFrameworkCore;
+using Volo.Abp.Data;
 using Volo.Abp.EntityFrameworkCore;
 
 namespace Volo.Abp.MultiTenancy.EntityFrameworkCore
 {
+    [ConnectionStringName("AbpMultiTenancy")]
     public class MultiTenancyDbContext : AbpDbContext<MultiTenancyDbContext>, IMultiTenancyDbContext
     {
         public static string TablePrefix { get; set; } = AbpMultiTenancyConsts.DefaultDbTablePrefix;