Fix Placeholder overlap issue (#1359)

* Fix label overlap issue when value is provided

#1330

* Placeholder should be active label and not overlap

#921

* Revert "Placeholder should be active label and not overlap"

This reverts commit 938fd37.

src/UniversalDashboard.Materialize/Tests/textbox.tests.ps1

@@ -17,4 +17,13 @@ Describe "Textbox" {
             Find-SeElement -ClassName 'active' -Driver $Driver | should be $true
         }
     }
+
+    Context "textbox placeholder" {
+        Set-TestDashboard -Content {
+            New-UDTextbox -Id 'EndTimestamp' -Label 'EndTimestamp' -Placeholder (Get-Date).ToString('yyyy.MM.dd HH:mm:ss.fff')  
+        }
+        It "should be active" {
+            Find-SeElement -ClassName 'active' -Driver $Driver | should be $true
+        }
+    }
 }

src/UniversalDashboard/Controls/src/textbox.ps1

@@ -40,7 +40,9 @@ function New-UDTextbox {
     }
 
     $LabelClassName = ""
-    if($Value){
+
+    if($Value -Or $Placeholder){
+
         $LabelClassName = "active"
     }