Bug 177439 Need an easy way to determine default value for a dynamic parameter
Currently, I have to bring up the data set editor, preview the results in the data set and make a mental note of the value to use for a report parameter that depends on a data set. It would be nice to have a drop down on the default value field, such as <Select value> which when selected queries the data set and presents me with a list to select from.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
{
						value = LABEL_CREATE_NEW_PARAMETER;
					}
					else
					{
						value = getDummyText( paramHandle ) + paramName;
					}
				}
				else if ( columnIndex == 1 )
				{
					if ( !isSingle( ) || paramHandle == getFirstParameter( ) )
					{
						value = LABEL_SELECT_DATA_SET;
					}
				}
				else if ( columnIndex == 2 )
				{
					if ( isSingle( ) && paramHandle != getFirstParameter( ) )
					{
						value = LABEL_SELECT_VALUE_COLUMN;
					}
				}
			}
			else
			{
				switch ( columnIndex )
				{
					case 0 :
					{
						if ( paramHandle != newParameter )