DropDownButtonBuilder.KeyExpr Method
| Name | Parameters | Description |
|---|---|---|
| KeyExpr(JS) | value | Specifies which data field provides keys used to distinguish between the selected drop-down menu items. Mirrors the client-side keyExpr option. |
| KeyExpr(String) | value | Specifies which data field provides keys used to distinguish between the selected drop-down menu items. Mirrors the client-side keyExpr option. |