fixed auto selection when renaming if extensions are hidden (#938)

Author: Richard

Files/UserControls/LayoutModes/GenericFileBrowser.xaml.cs

@@ -260,7 +260,13 @@ private void AllView_PreparingCellForEdit(object sender, DataGridPreparingCellFo
 
             renamingTextBox = e.EditingElement as TextBox;
             renamingTextBox.Focus(FocusState.Programmatic); // Without this, cannot edit text box when renaming via right-click
-            renamingTextBox.Select(0, SelectedItem.ItemName.Length - extensionLength);
+
+            int selectedTextLength = SelectedItem.ItemName.Length;
+            if (App.AppSettings.ShowFileExtensions)
+            {
+                selectedTextLength -= extensionLength;
+            }
+            renamingTextBox.Select(0, selectedTextLength);
             renamingTextBox.TextChanged += TextBox_TextChanged;
             isRenamingItem = true;
         }

Files/UserControls/LayoutModes/GridViewBrowser.xaml.cs

@@ -170,8 +170,13 @@ public override void StartRenameItem()
             textBox.Focus(FocusState.Pointer);
             textBox.LostFocus += RenameTextBox_LostFocus;
             textBox.KeyDown += RenameTextBox_KeyDown;
-            textBox.Select(0, renamingItem.ItemName.Length - extensionLength);
 
+            int selectedTextLength = SelectedItem.ItemName.Length;
+            if (App.AppSettings.ShowFileExtensions)
+            {
+                selectedTextLength -= extensionLength;
+            }
+            textBox.Select(0, selectedTextLength);
             isRenamingItem = true;
         }