Please use C# language!!! I just need the answer for #7 but you will need the other #1, and #2 since it is a related questions. Please just provide the source code, comments for the lines and the screenshot after run the source code of #7 and ignore the 1,2 like mentioned

Main question ----- > 7) Write overloaded methods for question 1 (array of doubles) and question 2 (array of doubles set the cell to its double equivalent, e.g. 0 = 0.0, 1 = 1.0, etc.)

1) Write a method that sums up all the values in the cells of the array. The array holds integers. The method should return a total (int).

2) Create a procedure that takes in an array as a parameter. This procedure will fill each cell with the value of the cells index. i.e. The first cell will be set to 1. The second cell will be set to two and so on.