how to set the border in excel for each row my code as follows;

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C#

My Code as follows;

Excel.Range BorderRAnge;
BorderRAnge.Borders[Excel.XlBordersIndex.xlEdgeBottom];
BorderRAnge.Borders[Excel.XlBordersIndex.xlEdgeRight];
BorderRAnge.Borders[Excel.XlBordersIndex.xlEdgeLeft];
BorderRAnge.Borders[Excel.XlBordersIndex.xlEdgeTop];

but when i run error shows as follows;
Only assignment, call, increment, decrement, and new object expressions can be used as a statement

from my code what is the mistake.
i want to set border for each row in excel.

it is windows application.

using c sharp.