How can I check if the current date has an interval of 5 days on date inserted on column

Question

1.00/5 (2 votes)

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Hello coders,

I've been struggling with something regarding datagridview row painting for better usage and understanding.

What I want to do:

Simply change the color of the column if the value(it's a date value) is less then 5 days to reach the today's date (DateTime.Now()).

What I have tried:

C#

foreach (DataGridViewRow row in dgw.Rows)
                   {
                    var now = DateTime.Parse(DateTime.Now.ToShortDateString());
                    var cellendDate = DateTime.Parse(row.Cells[5].Value.ToString());
                    var forTenDays = now.AddDays(+5);
                    var cellstartDate = DateTime.Parse(row.Cells[4].Value.ToString());
                    if (cellstartDate > cellendDate)
                    {
                        row.DefaultCellStyle.BackColor = Color.Gray;
                    }                 
                    else if ((now < cellendDate) && (cellendDate < forTenDays))
                    {
                        row.Cells[5].Style.BackColor = Color.Yellow; 
                    }else if (now == cellendDate)
                    {
                        row.Cells[5].Style.BackColor = Color.Red;
                    }else
                    {
                        row.Cells[5].Style.BackColor = Color.YellowGreen;
                    }
                }

Posted 27-Apr-17 3:50am

Scribling Doodle

Updated 27-Apr-17 4:09am

v3

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[no name] 27-Apr-17 9:57am

"I've been struggling", is not a description of any kind of a problem. If you are wanting to do something for 5 day difference then why are you adding 10 days?

Scribling Doodle 27-Apr-17 10:08am

5, 10, 30 it's the same thing... I forgot to edit that since I was testing some stuff. I'm sorry.

PIEBALDconsult 27-Apr-17 10:03am

DateTime.Parse(DateTime.Now.ToShortDateString()) -- PLEASE don't do that! Just use DateTime.Now
If you subtract cellstartDate or cellendDate from DateTime.Now you get a TimeSpan.
You can then simply test the timeSpan's TotalDays Property.

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OriginalGriff · Accepted Answer · 2017-04-27T04:02:00

Solution 1

To start with, don't use this:

var now = DateTime.Parse(DateTime.Now.ToShortDateString());

Instead use this:

DateTime now = DateTime.Now.Date;

And don't change cell values to a string and then parse them back to DateTimes either: if they are DateTime values in the cell, then cast them:

DateTime cellendDate = (DateTime)row.Cells[5].Value;

If you want five days, then add 5 not 10...

Posted 27-Apr-17 4:02am

OriginalGriff

Comments

Scribling Doodle 27-Apr-17 10:11am

I'll try, and already edited the question, since I was testing out some values, I forgot about that 10... But already changed it.

Maciej Los 27-Apr-17 14:35pm

5ed!