Change the background of Cells with C#

Question

I\'m developing an program using C# to manipulate an Excel document, and I\'m using

    Microsoft.Office.Interop.Excel._Worksheet worksheet;

W

Answer 1

You can do it like this:

private static readonly int DEL_PERF_FIRST_DATA_ROW = 10;
private static readonly int SUN_ORDERS_COLUMN = 3;
private static readonly int TUE_ORDERS_COLUMN = 5;
private static readonly int THU_ORDERS_COLUMN = 7;
private static readonly int SAT_ORDERS_COLUMN = 9;
private static Color ALTERNATE_WEEKDAY_COLUMNS_COLOR = Color.LightGray;
. . .
int curRow = DEL_PERF_FIRST_DATA_ROW;

(curRow gets incremented each time a row is written to the sheet.)

// Pale Violetize (light gray, actually) Sun, Tues, Thurs, and Saturday columns
var sundayColumnRange = _xlSheetDelPerf.Range[_xlSheetDelPerf.Cells[DEL_PERF_FIRST_DATA_ROW, SUN_ORDERS_COLUMN],_xlSheetDelPerf.Cells[curRow - 1, SUN_ORDERS_COLUMN]];
sundayColumnRange.Interior.Color = ALTERNATE_WEEKDAY_COLUMNS_COLOR;

var tuesdayColumnRange = _xlSheetDelPerf.Range[_xlSheetDelPerf.Cells[DEL_PERF_FIRST_DATA_ROW, TUE_ORDERS_COLUMN],_xlSheetDelPerf.Cells[curRow - 1, TUE_ORDERS_COLUMN]];
tuesdayColumnRange.Interior.Color = ALTERNATE_WEEKDAY_COLUMNS_COLOR;

var thursdayColumnRange = _xlSheetDelPerf.Range[_xlSheetDelPerf.Cells[DEL_PERF_FIRST_DATA_ROW, THU_ORDERS_COLUMN],_xlSheetDelPerf.Cells[curRow - 1, THU_ORDERS_COLUMN]];
thursdayColumnRange.Interior.Color = ALTERNATE_WEEKDAY_COLUMNS_COLOR;

var saturdayColumnRange =_xlSheetDelPerf.Range[_xlSheetDelPerf.Cells[DEL_PERF_FIRST_DATA_ROW, SAT_ORDERS_COLUMN], _xlSheetDelPerf.Cells[curRow - 1, SAT_ORDERS_COLUMN]];
saturdayColumnRange.Interior.Color = ALTERNATE_WEEKDAY_COLUMNS_COLOR;