Unable to cast object of type 'System.String[]' to type 'System.IConvertible'

Question

string[] weight = txtProductOptn1.Text.Split(',');
var Weight1 = Convert.ToInt32(weight);

Getting an error when i am converting the string array to int or decimal as

Unable to cast object of type 'System.String[]' to type 'System.IConvertible'.

Please find the answer.

Answer 1

Try this, weight is an array. Assuming you want to convert first element of array.

string[] weight = txtProductOptn1.Text.Split(',');
var Weight1 = Convert.ToInt32(weight[0]);

Answer 2

You cannot convert a string[] to an int. Perhaps you want to convert every single string to an int:

IEnumerable<int> ints = weight.Select(int.Parse);

Note that this will fail if one of the strings is not parsable to int because it has an invalid format.

Answer 3

You can't convert an array of string (string[]) to an integer (int). Using System.Linq, you can try:

int[] convertedWeight = txtProductOptn1.Text.Split(',')
                                            .Select(x => Convert.ToInt32(x))
                                            .ToArray();

to convert each element to an integer.

I found a similar post here : Convert string to int array using LINQ