Bug 210892 [Regression]The arguments of aggregation builder can not be modified
Description: [Regression]The arguments of aggregation builder can not be modified Build number: 2.3.0.v20071126-0800 Steps to reproduce: 1, New a table 2, Drag a aggregation builder into table 3, Specify the datafield, function to percentile and argument to 0.3 4, Reopen the aggregation and change the argument to 0.4 Expected result: After step4, the artument is changed to 0.4 Actual result: Nothing happened after step4, the argument is still 0.3 Error log:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
{
		this.name = name;
		if ( name != null && txtName != null )
			txtName.setText( name );
	}
	private void setDisplayName( String displayName )
	{
		if ( displayName != null && txtDisplayName != null )
			txtDisplayName.setText( displayName );
	}
	private void setTypeSelect( String typeSelect )
	{
		this.typeSelect = typeSelect;
		if ( dataTypes != null && cmbType != null )
		{
			cmbType.setItems( dataTypes );
			if ( typeSelect != null )
				cmbType.select( getItemIndex( cmbType.getItems( ), typeSelect ) );
			else
				cmbType.select( 0 );
		}
	}
	private int getItemIndex( String[] items, String item )
	{
		for ( int i = 0; i < items.length; i++ )
		{
			if ( items[i].equals( item ) )
				return i;
		}
		return -1;