c# - Cannot implicitly convert type 'int' to 'string' on 2 intergers -


i making program calculating cost of 3d printing stuff. came on question.

    private void button1_click(object sender, eventargs e)     {         double getal1 = int32.parse(textbox1.text);         double getal2 = int32.parse(textbox2.text);         double volume = 0.002405281875;         double volume1 = 0;         int dichtheidpla = int32.parse("1,24");           if (combobox1.text == "pla")         {             //volume berekenen             volume1 = volume * getal1;             v.text = volume1.tostring("n2");              //gewicht berekenen               int volumeberekend = convert.toint32(volume1);             gewicht1.text = volumeberekend * dichtheidpla;          }         else if (combobox1.text == "abs")         {          }      } }

when want calculate gewicht1 error shows me: cannot implicitly convert type 'int' 'string'. there red line under 'volumeberekend * dichtheidpla'.

gewicht1.text string type, , result of expression int. have convert result string.

gewicht1.text = (volumeberekend * dichtheidpla).tostring();

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