Question

I have following section of code in my program:

 object val;
 val = arr[1].Trim(); // in my case i am getting value here is 1.00

now when I am assigning value to a datarow I am getting error

Expected int64 value.

datarow[Convert.ToString(drow["col"]).Trim().ToUpper()] = val;

I am not facing any issue when getting value other that 1.00.

What could be the exact problem? How can I solve it?

Suggestions and solutions are welcome

Answer 1

If that column in your datatable is expecting an Int64 you need to convert val (which is a string) to an Int64:

var val = arr[1].Trim(); // String at this point
long longVal = 0;
if(!long.TryParse(val,out longVal){
    throw new InvalidOperationException("value wasnt an Int64!");
}
datarow[Convert.ToString(drow["col"]).Trim().ToUpper()] = longVal