C# datagridview how to sort string column based on time value.

Question

0.00/5 (No votes)

See more:

i have a datagridview column which is type of string and the string values are time(ex: 12:15:00 AM), i want to sort the column in order as follows

12:15:00 AM
12:20:00 AM
1:50:00 AM
4:00:00 AM
11:00:00 AM
2:00:00 PM
5:00:00 PM

so on.

However the result are different and its sorting based on numbers.
is there anything i can do to achieve it, please help.

What I have tried:

<pre>usrgrid1.Sort(usrgrid1.Columns["TimeUpdated"], ListSortDirection.Ascending);

Posted 14-Feb-20 2:15am

Member 13476575

Updated 15-Feb-20 13:09pm

Add a Solution

4 solutions

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)

phil.o · Answer 1 · 2020-02-14T02:21:00

Solution 1

You could try to use the other overload of the Sort method:
DataGridView.Sort Method (System.Windows.Forms) | Microsoft Docs[^]
and create an IComparer which would transform column values back to DateTime values before comparisons. You can base your implementation on provided example.

Posted 14-Feb-20 2:21am

phil.o

Comments

Maciej Los 15-Feb-20 15:25pm

5ed!

Maciej Los · Answer 2 · 2020-02-14T02:22:00

Solution 2

Quote:
is there anything i can do to achieve it

Yes, you need to use proper data type: DateTime, instead of string! Then you'll be able to sort data correctly.

Posted 14-Feb-20 2:22am

Maciej Los

Comments

phil.o 14-Feb-20 10:01am

Sensible advice :)

Maciej Los 15-Feb-20 15:24pm

Thank you, Olivier.

Patrice T · Answer 3 · 2020-02-14T09:56:00

Solution 3

Quote:
is there anything i can do to achieve it, please help.

Only a few options:
- switch to 24 hours format (military time in USA). Sort can be done directly with a string in that format.
- use a datetime datatype, it is sortable.

Posted 14-Feb-20 9:56am

Patrice T

Member 14743997 · Answer 4 · 2020-02-15T13:10:00

Solution 4

Instead of String Column, you can use DateTime Column and set it's DefaultCellStyle.Format property to any datetime format.

Posted 15-Feb-20 13:10pm

Member 14743997