Bug 180645 Support set format for Date/Time type parameter.[0705]
Description: Support set format for Date/Time type parameter. Build number:2.2.0.v200704031345 Steps to reproduce: 1. New a Date report parameter. 2. Click Change... button to set format for it. Expected result: Can set format for Date/Time parameter. Actual result: Change... button is disabled. Error log:N/A
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/FormatDateTimePage.java
&& !getPreviewText( ).equals( defaultDateTime ) )
		{
			try
			{
				sampleDateTime = new Date( getPreviewText( ) );
			}
			catch ( Exception e )
			{
				
			}
		}
		if ( DesignChoiceConstants.DATETIEM_FORMAT_TYPE_CUSTOM.equals( category ) )
		{
			String pattern = formatCode.getText( );
			String fmtStr;
			String text = previewTextBox.getText( );
			if ( StringUtil.isBlank( text ) || defaultDateTime.equals( text ) )
			{
				fmtStr = new DateFormatter( pattern, ULocale.getDefault( ) ).format( sampleDateTime );
			}
			else
			{
				try
				{
					fmtStr = new DateFormatter( pattern ).format( DataTypeUtil.toDate( text ) );
				}
				catch ( Exception e )
				{
					fmtStr = PREVIEW_TEXT_INVALID_DATETIME_TO_PREVIEW;
				}