Ronald wrote:

<<
Could it be the text property in the calendar control? In the ide it says: 9/21/2016, but when I run my app I change the formatsettings but the text property is still 9/21/2016 at that moment. Could that be the cause?
>>

Yes, it is in the text property. I tested this by changing the value of the textproperty by hand in the .wbf file in a "dutch" date (1-1-2016). If I then run the application I do not get the error.

On 9/27/2016 3:26 AM, Ronald wrote:
> Ronald wrote:
> Yes, it is in the text property. I tested this by changing the value of the textproperty by hand in the .wbf file in a "dutch" date (1-1-2016). If I then run the application I do not get the error.

Good it works for you but i'm not seeing this.

With text property as "9/27/2016" and app changing formatsettings to
"d-M-yyyy" calendar works just fine here without any errors.

Raul

Raul wrote:

<<Good it works for you but i'm not seeing this.

With text property as "9/27/2016" and app changing formatsettings to
"d-M-yyyy" calendar works just fine here without any errors.>>

I now create the TCalender control at runtime and it works ok now.

Ronald,

<< Yes, it is in the text property. I tested this by changing the value of the textproperty by hand in the .wbf file in a "dutch" date (1-1-2016). If I then run the application I do not get the error. >>

I tried this, which means that the date is incorrect for my date format, and the Text simply resets to today's date.  The same thing happens if I assign an invalid date (format) to the Text property of the TDateEditComboBox control.

However, the IDE *should* be raising an error in these cases, so I've fixed that.

Tim Young
Elevate Software
www.elevatesoft.com