Hi D Havaraj,
Thank you for contacting Syncfusion support.
Based on the information, we suspect that your requirement is to loading PDF when tapping the cell in the grid row and getting the tapped row data can be achieved through DataGrid GridTapped event. Please refer the following link for this requirement.
Since the shared information is not sufficient to understand your query clearly, can you please elaborate your query in detail along with Screenshot (if possible). It will be helpful for us to look on it and provide you the better solution.
Subburaj Pandian V