convert string to float number

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Robin Nicholl 137 posts 277 karma points

Nov 06, 2017 @ 14:02
0

Convert string to float number

Templates, (partial) views and macros

Umbraco 7
I need to build a selection containing all child nodes of a particular type where the 'price' property (which is a string) is <= a variable (also a string).

This will obviously do a string match...
```
var selection = myNode.GiftTypes.Where("price <= \""+costlimit+"\"")
```
... but I need to convert 'price' and 'costlimit' to float numbers so that I can do...
```
price <= costlimit // e.g. 8.95 <= 20
```
I've tried all sorts of things, like price.AsInt(), Int32.Parse(price), but everything throws an error.

Thanks
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Alex Skrypnyk 6133 posts 23952 karma points MVP 7x admin c-trib

Nov 06, 2017 @ 14:05
0
Hi Robin

Try this code:
```
var selection = myNode.GiftTypes..Where(x => x.GetPropertyValue<float>("price") <= costlimit));
```
Thanks,

Alex
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Robin Nicholl 137 posts 277 karma points

Nov 06, 2017 @ 14:12
0
Thanks, Alex, for such a rapid reply, but this gives an error:
```
Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate or expression tree type
```
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Alex Skrypnyk 6133 posts 23952 karma points MVP 7x admin c-trib

Nov 06, 2017 @ 14:21

0

Show, please, all code

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Robin Nicholl 137 posts 277 karma points

Nov 06, 2017 @ 14:38

@inherits Umbraco.Web.Mvc.UmbracoTemplatePage

var gender = Request["gender"];         @* eg "male" *@
var relation = Request["relation"];     @* eg "family,friend" *@
var age = Request["age"];               @* eg "child,teen" *@
var interests = Request["interests"];   @* eg "food" *@
var costlimit = Request["costlimit"];   @* eg "100" *@

var mainSelection = CurrentPage.Descendants().Where("Level == "+sublevel+"").Where("Visible");

@foreach( var subNode in mainSelection ) {

    var giftSelection = subNode.GiftTypes
            .Where("gender.Contains(\""+gender+"\")")
            .Where("relation.Contains(\""+relation+"\")")
            .Where("age.Contains(\""+age+"\")")
            .Where("interests.Contains(\""+interests+"\")")
            .Where(x=>x.GetPropertyValue<float>("price") <= 100);<<<costlimit hardcoded for testing

    foreach( var gift in giftSelection ) {

        <div>
            ... do stuff
        </div>

    }

}

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