Hi @saritab2: Small amendment. In the Table (grid) configuration you have selected source as Data page and given name of data page as D_abc which is correct.
In the columns, just mention the property names without datapage and .pxresults reference. So in your case it will be .property and .pxsummerycount(1).
Note: For the summary count, you need to give a index based on how many summary results from report. Order of index is same as how many summary results you have. Please run the data page to see the index for better understanding.