Combo Box: Changing default value

[c.haslam]

Early in my script I have:

$cmbEDOW = GUICtrlCreateCombo("", 120, 71, 81, 25, $CBS_DROPDOWNLIST)
    GUICtrlSetData(-1, "Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday","Sunday")

 

Later in my script the user can change the day of the week to a different one, e.g. s being "Friday", so I have:

Local $t = "Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sunday"

GUICtrlSetData($cmbEDOW,$t,s)

But when the user clicks on the control he sees 15 choices, Sunday .. Saturday is repeated and a third Sunday is added at the end.

I have tried setting data to "". It doesn't help.

 

 

Edited August 15, 2024 by c.haslam

[c.haslam]

I could not edit, so here is corrected version:

Early in my script I have:

$cmbEDOW = GUICtrlCreateCombo("", 120, 71, 81, 25, $CBS_DROPDOWNLIST)
    GUICtrlSetData(-1, "Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday","Sunday")

 

Later in my script the script  changes the day of the week to a different one, e.g. s being "Friday", so I have:

Local $t = "Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sunday"

GUICtrlSetData($cmbEDOW,$t,s)

But when the user clicks on the control he sees 15 choices, Sunday .. Saturday is repeated and a third Sunday is added at the end.

I have tried setting data to "". It doesn't help.

[ahmet]

Under remarks for GUICtrlSetData() there is this line: "If the "data" starts with GUIDataSeparatorChar or is an empty string "" the previous list is destroyed. A trailing GUIDataSeparatorChar is ignored." So your "later" line should be

Local $t = "|Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sunday"

 

[c.haslam]

Thank you.

I now understand "If the "data" starts with GUIDataSeparatorChar ... the previous list is destroyed". "If the "data" starts with GUIDataSeparatorChar ... the previous list is destroyed and the list that followings the GuiDataSeparatorChar replaces the old list" would be clearer.

I don't see how "data" being "an empty string" would be useful.

[Andreik]

38 minutes ago, c.haslam said:

I don't see how "data" being "an empty string" would be useful.

It's useful to clear the combo in order to add new data without being appended to the current data or simply for the cases where you want to clear all data.

[c.haslam]

Understood