Sorting text column as numeric column WPF MVVM

Question

I have a DataGrid which is binded to a collection of models. My model has a string property called Position which is of type string, but contains an integer value.

My problem is, when sorting this column values get sorted as 1, 10, 2 instead of 1, 2, 10.

Is there anyway to handle this MVVM style without handling the Sorting event of the DataGrid in code-behind? Bear in mind I cannot change the type of the property.

put an int PositionNumber {get { return int.Parse(Position); } } property in the model and use that instead. — Fede
– Fede, Commented Mar 6, 2014 at 19:34
@HighCore I have more than one property with this behavior and I'm looking for a more generic solution — Omri Btian
– Omri Btian, Commented Mar 6, 2014 at 20:01

Community · Accepted Answer · 2017-05-23 10:31:59Z

5

If you don't want to do it in the code-behind, I think you will want a custom sort behavior, like shown in this SO post...

https://stackoverflow.com/a/18218963/1246574

I know you said you don't want to break MVVM so you don't want to handle a sort event in the code-behind. Even so, in case anyone else wants to know how to do it that way, this SO post shows how...

https://stackoverflow.com/a/2130557/1246574

edited May 23, 2017 at 10:31

CommunityBot

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answered Mar 6, 2014 at 19:36

Jim

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1 Comment

Omri Btian Over a year ago

The attached behavior seems to be what I'm looking for. I'll check it out and report back. Thanks!

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