0005581: TJvDBDateEdit showing blanks with ClientDataSet when date on the field is seted to 1899-12-30 - Project JEDI

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Category

Severity

Reproducibility

Date Submitted

Last Update

0005581

[JEDI VCL] 00 JVCL Components

minor

always

2011-05-19 17:27

2012-09-10 14:15

Reporter

roberto-novakosky

View Status

public

Assigned To

obones

Priority

normal

Resolution

fixed

Status

resolved

Product Version

3.35

Summary

0005581: TJvDBDateEdit showing blanks with ClientDataSet when date on the field is seted to 1899-12-30

Description

Example:
When a value on a Field on clientDataSet is seted to '1899-12-30' (corresponding to integer 0) the TJvDBDateEdit linked to the field shows blank text. The correct is it shows '1899-12-30'

Additional Information

When value on a Field on clientDataSet is seted to '1899-12-31' (corresponding to integer 1) the TJvDBDateEdit linked to the field shows correctly.

The problem seams that internal code, when the date is 0, understand as nullDate, a TDateTime 0 defined inside code. 0 is a valid Date (0 = '1899-12-30') but is not showing in this case. The correct is it shows '1899-12-30'.

Sugestion: Always shows if the field has a Valid Date.

My tests:
1)
MyClientDataSet.FieldByName('my_date').AsDAteTime := 0;
TJvDBDateEdit must to show '1899-12-30', fail - show blank
2)
MyDateTime := StrToDateTime('1899-12-30');
MyClientDataSet.FieldByName('my_date').AsDAteTime := MyDateTime;
TJvDBDateEdit must to show '1899-12-30', fail - show blank
3) To other values works fine
MyClientDataSet.FieldByName('my_date').AsDAteTime := -1;
TJvDBDateEdit shows '1899-12-29', sucess OK

(Tests using Delphi 2006 and JEDI VCL 3.35)

Tags

No tags attached.

Attached Files

JediReportJvDBDateEdit.zip [^] (546,416 bytes) 2011-06-15 14:24

Relationships

Notes
(0018637) obones (administrator) 2011-06-07 18:01	Please provide the zipped sources of a sample application showing this

(0018767) roberto-novakosky (reporter) 2011-06-15 14:26	zipped file added, using Delphi 2006 and JEDI VCL 3.35

(0019495) obones (administrator) 2012-02-23 10:58	Added ShowNullDate property, False by default. Set it to True and you get the desired behavior

Issue History
Date Modified	Username	Field	Change
2011-05-19 17:27	roberto-novakosky	New Issue
2011-06-07 18:01	obones	Note Added: 0018637
2011-06-07 18:01	obones	Status	new => feedback
2011-06-15 14:24	roberto-novakosky	File Added: JediReportJvDBDateEdit.zip
2011-06-15 14:26	roberto-novakosky	Note Added: 0018767
2011-06-15 19:30	roberto-novakosky	Issue Monitored: roberto-novakosky
2011-09-21 11:46	obones	Status	feedback => acknowledged
2012-02-23 10:58	obones	Note Added: 0019495
2012-02-23 10:58	obones	Status	acknowledged => resolved
2012-02-23 10:58	obones	Fixed in Version	=> Daily / SVN
2012-02-23 10:58	obones	Resolution	open => fixed
2012-02-23 10:58	obones	Assigned To	=> obones
2012-09-10 14:15	obones	Fixed in Version	Daily / SVN => 3.46

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