When rich text box is empty it should show hint. (#1702)

Keboo · web-flow · commit 82831785ed3d · 2020-03-20T08:16:05.000-07:00
Fixes #1692
diff --git a/MaterialDesignThemes.Wpf/HintProxyFabric.RichTextBox.cs b/MaterialDesignThemes.Wpf/HintProxyFabric.RichTextBox.cs
@@ -24,7 +24,8 @@ public bool IsEmpty()
                     _richTextBox.Document.ContentEnd
                 );
 
-                return string.IsNullOrWhiteSpace(textRange.Text);
+                return string.IsNullOrEmpty(textRange.Text) || 
+                    textRange.Text == Environment.NewLine;
             }
 
             public bool IsFocused() => _richTextBox.IsKeyboardFocused;

Original file line number	Diff line number	Diff line change
`@@ -24,7 +24,8 @@ public bool IsEmpty()`
`24`	`24`	`_richTextBox.Document.ContentEnd`
`25`	`25`	`);`
`26`	`26`
`27`		`- return string.IsNullOrWhiteSpace(textRange.Text);`
	`27`	`+ return string.IsNullOrEmpty(textRange.Text) \|\|`
	`28`	`+ textRange.Text == Environment.NewLine;`
`28`	`29`	`}`
`29`	`30`
`30`	`31`	`public bool IsFocused() => _richTextBox.IsKeyboardFocused;`