void Datasheet_SetReportTree_Ex1_new(bool bTransposeTable = false)
{
	int nID = 1000;
	int nTableFormat = GETNBRANCH_OPEN | GETNBRANCH_HIDE_COL_HEADINGS| GETNBRANCH_HIDE_ROW_HEADINGS | GETNBRANCH_FIT_COL_WIDTH | GETNBRANCH_FIT_ROW_HEIGHT;
	// 1. Create report tree
	Tree tr;
	tr.Report.ID = nID++;
	tr.Report.SetAttribute(STR_LABEL_ATTRIB, "Sample Report Tree"); //Table title
	// TREE_Table attribute is critical in getting the report to work so must be present in every table level. 
	// Can set this attribute as 0 without any format, but many bits GETNBRANCH_* defined in oc_const.h to set table display format.
	tr.Report.SetAttribute(TREE_Table, nTableFormat); 
 
	// 2. Create report table
	tr.Report.Table.ID = nID++;
	tr.Report.Table.SetAttribute(STR_LABEL_ATTRIB, "This is a simple table"); // Table title. If not set this, will show as empty here
	int nSubTableFormat = nTableFormat;
	if(bTransposeTable)
		nSubTableFormat |= GETNBRANCH_TRANSPOSE; // transpose this table
	tr.Report.Table.SetAttribute(TREE_Table, nSubTableFormat); 
	
	//3. add rows and columns to this table
	int nRows = 8;
	int iRow = 0;
	
	while(iRow++ < nRows)
	{
		string strRx = "Row" + iRow;
		string strLabel = "Row " + iRow;
		TreeNode trRx = tr.Report.Table.AddNode(strRx);
		trRx.ID = nID++;
		trRx.SetAttribute(STR_LABEL_ATTRIB, strLabel);
		
		//col
		int nCols = 2;
		int iCol = 0;
		int nColID = 3210;
		while(iCol++ < nCols)
		{
			string strCx = "Col" + iCol;
			TreeNode trCx = trRx.AddNode(strCx);
			trCx.ID= nColID++;
			trCx.dVal = 15;
			
		}
	}
	
	
	//7. Prepare worksheet window to report
	WorksheetPage wksPage;
	wksPage.Create();	
 
	DWORD 	dwOptions = WP_SHEET_HIERARCHY | CREATE_NO_DEFAULT_TEMPLATE;		
	string	strSheetName = "Report Sheet";
	int nn = wksPage.AddLayer(strSheetName, dwOptions);
	if( nn < 0 )	
		return;	
 
	Worksheet wksOut = wksPage.Layers(nn);
	wksPage.Layers(0).Delete();	//delete the first default layer	
 
	// 8. Do report
	if( wksOut.SetReportTree(tr.Report) < 0 ) // Returns last row number on successful exit and -1 on failure.
	{
		printf("Fail to set report tree.\n");
		return;
	}		
	wksOut.AutoSize();
	//out_tree(tr);
}