Drag/Drop Allow Begin

Friendly Name Drag/Drop Allow Begin
API Name DragnDropAllowBegin
Type Boolean
Restrictions  
Get Function   (dcl-Control-GetDragnDropAllowBegin <CONTROL>)
Set Function   (dcl-Control-SetDragnDropAllowBegin <CONTROL> NewValue [as Boolean])
Applies To Block List, Block View, DWG List, DWG Preview, Graphic Button, Hatch, Label, List Box, List View, Picture Box, Slide View, Text Box, Text Button, Tree
如果设置此属性,则按下鼠标左键开始拖放操作。