OnChangeMonthYear AJAX Event

[Aggie85]

I am using an inline date picker. I added an OnChangeMonthYear event so that I can get the month / year and do a few things.

One of things is that I want to set the date picker's Date property to the first date with an available event. IF I implement the event as an AJAX event, it always resets the month to the first month / year when the date picker was rendered. If I implement the event as NON-AJAX, it works fine but the screen does a full submit.

Any idea on how to fix this?

Thanks!

Aggie85

[Jorge Sousa]

Hi Aggie85

Add the following to Design-Time or OnCreate

with IWCGJQDatePicker1.JQDatePickerOptions.OnChangeMonthYear.BrowserParams.Add do
begin
ServerName:= 'Year';
BrowserScript:= 'year';
end;
with IWCGJQDatePicker1.JQDatePickerOptions.OnChangeMonthYear.BrowserParams.Add do
begin
ServerName:= 'Month';
BrowserScript:= 'month';
end;

Then the event will be something like this:

procedure TIWForm12.IWCGJQDatePicker1JQDatePickerOptionsChangeMonthYear(Sender: TObject; AParams: TStringList);

function GetFormatSettings: TFormatSettings;
begin
Result:= CGDatePickerFormatSettings;
Result.ShortDateFormat:= IWCGJQDatePicker1.JQDatePickerOptions.DateFormat;
Result.LongDateFormat:= Result.ShortDateFormat;
Result.DateSeparator:= IWCGJQDatePicker1.JQDatePickerOptions.DateSep;
Result.TwoDigitYearCenturyWindow:= 2;
end;

var
DT: TDateTime;
begin
DT:= EncodeDate(StrToInt(AParams.Values['Year']),StrToInt(AParams.Values['Month']),1);
IWCGJQDatePicker1.JQDatePickerOptions.SetDate(DateToStr(DT,GetFormatSettings));
end;

[Jorge Sousa]

Hi again

This an improved and complete version:


delphi code

procedure TIWForm12.IWCGJQDatePicker1JQDatePickerOptionsChangeMonthYear(Sender: TObject; AParams: TStringList);

  function GetFormatSettings: TFormatSettings;
  begin
    Result:= CGDatePickerFormatSettings;
    Result.ShortDateFormat:= IWCGJQDatePicker1.JQDatePickerOptions.DateFormat;
    Result.LongDateFormat:= Result.ShortDateFormat;
    Result.DateSeparator:= IWCGJQDatePicker1.JQDatePickerOptions.DateSep;
    Result.TwoDigitYearCenturyWindow:= 2;
  end;

var
  DT: TDateTime;
  DTS: string;
begin
  DT:= EncodeDate(StrToInt(AParams.Values['Year']),StrToInt(AParams.Values['Month']),1);

  DTS:= DateToStr(DT,GetFormatSettings);
  IWCGJQDatePicker1.JQDatePickerOptions.SetDate(DTS);

  CGAddJavaScriptToAjaxResponse(Format('CGSetHiddenInputVal("%s","%s");',[IWCGJQDatePicker1.HTMLName + DateSuffix,DTS]));
end;

[Aggie85]

Thanks! I will try this when I get back to my office after lunch!

Best Regards,

Aggie85