Bug 144378 There is no checkbox for user to bind a dynamic image
Description: Create a dynamic image, there is no checkbox for user to bind the column of dataset. Steps to reproduce: 1.Create a sample datasource and dataset with "select * from CLASSICMODELS.PRODUCTLINES". 2.Add a image to the report layout, select dynamic image type, and then click "Binding" button, select the dataset, and want to bind a column. But there is no checkbox for user to do this action. Expected result: Like data item, there is a checkbox for user to bind the column.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ColumnBindingDialog.java
{
			if ( bindingTable != null )
				bindingTable.getTable( ).setSelection( pos );
			if ( selectedColumnName != null
					&& selectedColumnName.equals( bindingName ) )
				selectedColumnName = bindingHandle.getName( );
		}
	}
	protected void handleDelEvent( )
	{
		int pos = bindingTable.getTable( ).getSelectionIndex( );
		if ( pos > -1 )
		{
			try
			{
				ComputedColumnHandle handle = (ComputedColumnHandle) ( DEUtil.getBindingHolder( inputElement ) ).getColumnBindings( )
						.getAt( pos );
				deleteRow( handle );
			}
			catch ( Exception e1 )
			{
				ExceptionHandler.handle( e1 );
			}
		}
	}
	private boolean existHighLightColumn( )
	{
		if ( highLightName == null )
			return false;
		for ( int i = 0; i < bindingTable.getTable( ).getItemCount( ); i++ )