added virtual desktop application group name validation rule

azurerm/internal/services/desktopvirtualization/virtual_desktop_application_group_resource.go

@@ -3,14 +3,14 @@ package desktopvirtualization
 import (
 	"fmt"
 	"log"
+	"regexp"
 	"time"
 
 	"github.com/Azure/azure-sdk-for-go/services/preview/desktopvirtualization/mgmt/2019-12-10-preview/desktopvirtualization"
 	"github.com/hashicorp/terraform-plugin-sdk/helper/schema"
 	"github.com/hashicorp/terraform-plugin-sdk/helper/validation"
 	"github.com/terraform-providers/terraform-provider-azurerm/azurerm/helpers/azure"
 	"github.com/terraform-providers/terraform-provider-azurerm/azurerm/helpers/tf"
-	"github.com/terraform-providers/terraform-provider-azurerm/azurerm/helpers/validate"
 	"github.com/terraform-providers/terraform-provider-azurerm/azurerm/internal/clients"
 	"github.com/terraform-providers/terraform-provider-azurerm/azurerm/internal/services/desktopvirtualization/parse"
 	"github.com/terraform-providers/terraform-provider-azurerm/azurerm/internal/tags"
@@ -40,10 +40,16 @@ func resourceArmVirtualDesktopApplicationGroup() *schema.Resource {
 
 		Schema: map[string]*schema.Schema{
 			"name": {
-				Type:         schema.TypeString,
-				Required:     true,
-				ForceNew:     true,
-				ValidateFunc: validate.DevSpaceName(),
+				Type:     schema.TypeString,
+				Required: true,
+				ForceNew: true,
+				ValidateFunc: validation.All(
+					validation.StringIsNotEmpty,
+					validation.StringMatch(
+						regexp.MustCompile("^[-a-zA-Z0-9]{1,260}$"),
+						"Virtual desktop application group name must be 1 - 260 characters long, contain only letters, numbers and hyphens.",
+					),
+				),
 			},
 
 			"location": azure.SchemaLocation(),