Expand/Contract Symbol:Show Symbol at Root Property
Short Name: Show Symbol at Root
Installed With: Base Package
Class: TreeControl Properties
Shows or hides the expand/contract symbols for items at indent level 0. The indent level 0 items become flush with the left side of the tree control when you hide the expand/contract symbols.
If you hide the expand/contract symbols, you can still expand or collapse an item at indent level 0 by double-clicking the item.
To disable the double-clicking functionality, wire a True constant to the Discard? parameter of the Item Close? event.
Remarks
The following table lists the characteristics of this property.
| Available in Run-Time Engine and Real-Time Operating System | Yes |
| Permissions | Read/Write |
| Settable when the VI is running | Yes |
| Loads the front panel into memory | No |
| Need to authenticate before use | No |
| Loads the block diagram into memory | No |
| Remote access disallowed | No |
| Must wait until user interface is idle | No |
| Available with control VIs | No |
| Available with global VIs | No |
| Available with strict type definitions | No |
| Available with polymorphic VIs | No |