How do I write this Excel Interop syntax in EPPLUS syntax

Question

Someone suggested to me a method to improve my code by making it more manageable through the use of objects:

string[,] values = new string[15, 35];  //or objects
values[7, 7] = "2016";
values[7, 28] = drag24;
values[7, 33] = drag25;
values[10, 8] = digit1;
values[10, 11] = digit2;
// etc.

Range range = WS.Range[WS.Cells[1, 1], WS.Cells[15, 35]];
range.Value = values;

His suggestion, but since I moved from interop to EPPLUS, the following syntax no longer works.

Range range = WS.Range[WS.Cells[1, 1], WS.Cells[15, 35]];

What would a working form of this look like in EPPLUS Syntax?

Replacing it with this didnt work out right and replaced everything in the sheet:

ExcelRange range = WS.Cells["A1: AH106"]

Perhaps something like this?

= sheet.Cells["A1:,12:12,14:14"]

Answer 1

Not sure if this is exactly what you mean, but here's a simple example with a custom object, and arrays:

Test object:

class TestObject
{
    public int Id { get; set; }
    public string Name { get; set; }
}

Populating a sheet with the custom object, and arrays:

IEnumerable<TestObject> objectList = new List<TestObject>()
{
    { new TestObject() {Id = 0, Name = "zero" } },
    { new TestObject() {Id = 1, Name = "one" } }
};
var values = new List<object[]>()
{ 
    new string[] { "one", "two" }, 
    new string[] { "three", "four" }
};

using (var package = new ExcelPackage())
{
    var sheet = package.Workbook.Worksheets.Add("Sheet1");
    // note second parameter gives you headings
    sheet.Cells["A1"].LoadFromCollection<TestObject>(objectList, true);
    sheet.Cells["A4"].LoadFromArrays(values);
    File.WriteAllBytes(OUTPUT, package.GetAsByteArray());
}