Assign Null value to the Integer Column in the DataTable

Question

I have a datatable with One ColumnName \"CustomerID\" with Integer DataType. Dynamically I want to add rows to the DataTable. For that, I had created one DataRow object like:

Answer 1

DR["CustomerID"] = !string.IsNullOrEmpty(TextBox1.Text)
                   ? Convert.ToInt32(TextBox1.Text)
                   : DBNull.Value;

But you should check also that the value is a valid integer:

int value;
if(int.TryParse(TextBox1.Text, out value))
{
    DR["CustomerID"] = value;
}
else
{
    DR["CustomerID"] = DBNull.Value;
}