Strange, how to clear the text property of editmask, but I get '0000-00-00 00:00:00' ???

mokuei

There is an editmask control with em_dt. At design time, the Text is an empty string. Reading the text property in the code is also an empty string.
But why use em_dt.Text = '' in the program to set it to an empty string, and I get '0000-00-00 00:00:00' after reading the text attribute, but I want to get the empty string result!

PS: The Mask of the control is set to yyyy-mm-dd hh: mm: ss, and the MaskDataType is set to datetimemask!

lmqboy

If Mask is set to yyyy-mm-dd hh: mm: ss
Then the system will automatically add a default value for Text

tiger_mars

'' The result after formatting with yyyy-mm-dd hh: mm: ss is '0000-00-00 00:00:00'

mokuei

Upstairs, why set the Text property to an empty string when designing, in the code:
MessageBox ('', em_dt.Text)

Does the dialog box show an empty string?

mokuei

This inconsistent handling of PB can cause a lot of trouble!