How to use Min/Max function with MathExpressionConverter?

[CodingOctocat]

I noticed that the documentation supports a variety of operators, but there are no examples, I don't know how to use these operators, the examples are only simple ones such as add, subtract, multiply, divide, how do I use them for functions such as min, round?

[stephenquan]

Some references:

• MathExpressionConverterTest.cs shows min() usage: https://github.com/CommunityToolkit/Maui/blob/main/src/CommunityToolkit.Maui.UnitTests/Converters/MathExpressionConverterTests.cs
• MathExpressoin.shared.cs is the implementation: https://github.com/CommunityToolkit/Maui/blob/main/src/CommunityToolkit.Maui/Converters/MathExpressionConverter/MathExpression.shared.cs

You see that they're both thin wrappers of Math.Min and Math.Round respectively.

[CodingOctocat]

I tried the following code, but an Invalid exception occurs. <Label Text="{Binding MyValue, Converter={StaticResource MathExpressionConverter}, ConverterParameter='min(x/2,0)'}" />

[stephenquan]

That code snippet looks correct. Perhaps the error is in code you haven't shared?

[stephenquan]

Just something random, what happens if you add spaces, e.g. min( x/2 , 0) ?

[CodingOctocat]

@stephenquan You're right, there happened to be some errors in the binding.