I have a string that contains condition expressions:
"weight=65,age>18"
I want to check if the condition is true.
For example:
int weight = 70;
int age= 19;
string conditions = "weight=65,age>18";
In the above example weight condition is false and age condition is true. Hence the result should be false.
I want to check the condition and return if the condition is satisfied.
You are looking for a parser, as a possible quick solution you can try DataTable.Compute one:
using System.Data;
...
private static T RunWithVariables<T>(
string formula, params (string name, object value)[] variables) {
using DataTable table = new();
foreach (var (n, v) in variables)
table.Columns.Add(n, v is null ? typeof(object) : v.GetType());
table.Rows.Add();
foreach (var (n, v) in variables)
table.Rows[0][n] = v;
table.Columns.Add("__Result", typeof(double)).Expression = formula
?? throw new ArgumentNullException(nameof(formula)); ;
return (T)(Convert.ChangeType(table.Compute($"Min(__Result)", null), typeof(T)));
}
Then
int weight = 70;
int age = 19;
string conditions = "weight=65,age>18";
var result = RunWithVariables<bool>(conditions.Replace(",", " and "),
(nameof(weight), weight),
(nameof(age), age));