C# App: writing excel cell values to generic list

[ramya naidu]

Sketchs.Add(new SKETCH(SketchWorkSheet.Cells[i, 3].ToString(),
SketchWorkSheet.Cells[i, 4].ToString(),
SketchWorkSheet.Cells[i, 5].ToString(),
SketchWorkSheet.Cells[i, 6].ToString(),
SketchWorkSheet.Cells[i, 7].ToString(),
SketchWorkSheet.Cells[i, 8].ToString(), Convert.ToDouble(SketchWorkSheet.Cells[i,9])));

when i run this i get an error as

Input string was not in a correct format

Can any one help me in this

[SammyB]

Not exactly sure what all of your objects are, but the one thing that stands out is your use of Cells. Instead of
SketchWorkSheet.Cells[i, 8].ToString()
you should use
SketchWorkSheet.Cells[i, 8].Text
or
SketchWorkSheet.Cells[i, 8].Value.ToString()