c# - How to validate negative string number -

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• how can check if string number? 24 answers

i'm doing c# wpf application. may know how validate string value? example "0.00" or "-1.00",etc?

because both of them return string retrieve sap, there anyway check?

sorry i'm still new c# , not familiar function have in c#.

i assume want check if number negative number?

double number = 0; if(double.tryparse(mystring,out number)){    if (number > 0)        \\do }