I have a date column in a DGV using the format "dd-MMM-yy" how can I make the column glimph sort the dates in order?

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DGV assumes the column is a text string even though it is set as a Datetime column

The defaults cell format is "DataGridViewCellStyle { Format=dd-MMM-yy, Alignment=MiddleCenter }"

What I have tried:

Changing date text format.
The DGV does not convert the date sting properly

Posted 15-Mar-20 3:54am

Member 4657268

Updated 15-Mar-20 5:48am

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Richard MacCutchan 15-Mar-20 10:33am

According to the documentation it should sort on Values not formatted output.

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OriginalGriff · Answer 1 · 2020-03-15T05:48:00

If you pass it a string, it will treat it as a string: it won;t try to convert it to a DateTime value for you.

So check exactly what you are passing it, and use TryParse or TryParseExact to convert it before it gets to the DGV. A format string will only have an effect on DateTime values, and sorting will be on the actual type of the value - and a string comparison is character by character, it doesn't "know" about dates unless they are actual DateTime values.