Value is either too big or too small for a double

Question

0.00/5 (No votes)

See more:

C#

string strLot = "Lot = '" + textBox1.Text + "'";
                    
                    string strsearchLot = textBox1.Text;
                    dtsearchLot = null;
                    rows = dt.Select(strsearchLot);

                    if (rows != null && rows.Length > 0)
                    {
                        dtsearchLot = rows.CopyToDataTable();
                    }

                    cnt++;

Hi! I wrote this code to search for a particular "lot number" from my excel sheet. However, I got an error of "value is either too big or too small for a double" at

C#

rows = dt.Select(strsearchLot);

The row number for the "strsearchLot" from the excel sheet is stated as row 668.
May I know how to solve this issue? Thank you in advance for the help.

What I have tried:

I've tried to change the row number to a smaller number but still have that error.

Posted 9-Apr-18 20:58pm

Member 13650651

Updated 9-Apr-18 22:47pm

v2

Add a Solution

Comments

Jochen Arndt 10-Apr-18 3:28am

Are you sure that the error occurs on that line and not on the next containing rows.CopyToDataTable()?

Member 13650651 10-Apr-18 3:43am

my bad, the error is actually at "rows = dt.Select(strsearchLot);"

Maciej Los 10-Apr-18 4:16am

What;s your input data in a datatable?

Jochen Arndt 10-Apr-18 4:18am

Open the sheet with Excel and check the columns in that row. There is probably a cell containing a value that can't be represented as a vaild double.

F-ES Sitecore 10-Apr-18 4:32am

Given we don't know what type "rows" is or what it contains, we don't know what "dt" is, we don't know what "Select" is or what it does or what parameters it uses, and we don't have access to your data it's not really a question anyone can answer, we can only guess. As the error message suggests there is probably a number in your sheet that is too big or too small to be stored in a .net double variable.

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Maciej Los · Answer 1 · 2018-04-09T22:48:00

An error message is self-explanatory.

As an official documentation[^] states:

Quote:
Real literals using scientific notation, such as 4.42372E-30, are parsed using System.Double.

Real literals without scientific notation, but with a decimal point, are treated as System.Decimal. If the number exceeds the maximum or minimum values supported by System.Decimal, then it is parsed as a System.Double. For example:

142526.144524 will be converted to a Decimal.

345262.78036719560925667 will be treated as a Double.

BTW: your code is probably wrong!

C#

string strLot = "Lot = '" + textBox1.Text + "'"; //this seems to be OK!
string strsearchLot = textBox1.Text;//this is probably wrong, unless a TextBox1.Text contains: Lot=<SomeDecimalValue>!
rows = dt.Select(strsearchLot); //if textBox1.Text does not contains field name and proper comparison operator, it'll cause error "The expression '<ValueFromTextBox>' does not return a boolean.":