onChange will be called every time the dropdown menu is closed, even if the value isn't changed, especially when multiple=false
checkedIcon and unCheckedIcon is not available when multiple=false
There is no DefaultValue option especially when multiple=false
Thus, it causes a problem I found when multiple=false and select the option which is already selected:
(1) onChange will be called
(2) function assigned to value will NOT be called, which means value will not be re-calculated
(3) function selectionsRenderer will be called while the 1st param (value) is null. However,
it should be the previous value (if applicable) when user select the selected option, since when multiple=false, there is no checked/unchecked conception behind. And this supposed behavior can be found in browsers' default single dropdown.
I found the following facts:
onChangewill be called every time the dropdown menu is closed, even if the value isn't changed, especially whenmultiple=falsecheckedIconandunCheckedIconis not available whenmultiple=falseDefaultValueoption especially whenmultiple=falseThus, it causes a problem I found when
multiple=falseand select the option which is already selected: (1)onChangewill be called (2) function assigned tovaluewill NOT be called, which means value will not be re-calculated (3) functionselectionsRendererwill be called while the 1st param (value) isnull. However, it should be the previous value (if applicable) when user select the selected option, since whenmultiple=false, there is nochecked/uncheckedconception behind. And this supposed behavior can be found in browsers' default single dropdown.