c# - Why I can't insert variable into if statement? -


one day made quiz here code:

public form1() {     initializecomponent();     int currentques = 1; }  private void button1_click(object sender, eventargs e) {     string answer = textbox1.text;     string correctans1 = "2";     if (textbox1.text == correctans1)     {         label2.text = string.format("successful!!!");     }     else     {         label2.text = string.format("invalid!!!");     }     if (currentques == 1)     {         label2.text = string.format("what 1+1?");     } }

i got following error:

the name 'currentques' not exist in current context

why?


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