void testGroupPlot()
{
	GraphLayer gl = Project.ActiveLayer();
	if(!gl)
	{
		out_str("Please activate a graph layer!");
		return;
	}

	try
	{
		GroupPlot gplot = gl.Groups(0);
		out_str("Has Group!");
	}
	catch(int iErr)
	{
		out_str("Has no Group!");
		printf("Error No. is %d.\n", iErr);
	}
	
	out_str("Out of try-catch!");
}

void testGetLongName()
{
	GraphLayer gl = Project.ActiveLayer();  // get the active graph layer
	if(gl)
	{
		foreach(DataPlot dp in gl.DataPlots)  // loop all data plots in the active graph layer
		{
			XYRange xy;  // xy range of the data plot
			Column xCol, yCol;  // xy columns of the data plot
			
			// get xy range and xy columns of the data plot
			if(dp.GetDataRange(xy) && xy.GetXColumn(xCol) && xy.GetYColumn(yCol))
			{
				string strXLongName, strYLongName;
				strXLongName = xCol.GetLongName();  // get long name of x column
				strYLongName = yCol.GetLongName();  // get long name of y column
				out_str("Long Name of Column X:"+strXLongName);
				out_str("Long Name of Column Y:"+strYLongName);
			}
		}
	}
}