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
{
							String paramName;
							if ( paramHandle != selectedParameter )
							{
								paramName = paramHandle.getName( );
							}
							else
							{
								paramName = paramNameEditor.getText( ).trim( );
							}
							value = getDummyText( paramHandle ) + paramName;
						}
						break;
					}
					case 1 :
					{
						DataSetHandle dataSet = null;
						if ( isSingle( ) )
						{
							if ( paramHandle != getFirstParameter( ) )
							{
								break;
							}
							dataSet = inputParameterGroup.getDataSet( );
						}
						else
						{
							dataSet = getDataSet( paramHandle );
						}
						if ( dataSet == null )