Get string last 4 digits of VIN#

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I am working on getting the last 4 digits of a VIN #. I thought it would be something simple but for some reason i am getting a outofrange exception error.

C#

/** Last 4 digits of VIN # **/
string wholeVIN = record.vehicle.vehicleidentificationnumber;
string lastFourOfVIN = wholeVIN.Substring(wholeVIN.Length - 4, wholeVIN.Length-1);

Posted 19-Oct-15 10:33am

TheBigBearNow

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Sergey Alexandrovich Kryukov 19-Oct-15 16:44pm

You really, really need to learn resolving such "problems" all by yourself...
—SA

2 solutions

Solution 1

If you have concerns with such simple tasks, always use the debugger. And just read the documentation on what you are using: https://msdn.microsoft.com/en-us/library/aka44szs%28v=vs.110%29.aspx[^].

As you can see, the second parameter is the the sub-string length, so it should be 4. (But never hard-code immediate constants like 4.)

—SA

Posted 19-Oct-15 10:43am

Sergey Alexandrovich Kryukov

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Patrice T · Accepted Answer · 2015-10-19T10:48:00

Solution 2

Second parameter is length of substring !
Try

C#

/** Last 4 digits of VIN # **/
string wholeVIN = record.vehicle.vehicleidentificationnumber;
string lastFourOfVIN = wholeVIN.Substring(wholeVIN.Length - 4, 4);

Posted 19-Oct-15 10:48am

Patrice T