user interface - form close event in c# -

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i trying cleaning when form closes. using following signature 

private void batchgui_closing(object sender, formclosingeventargs e)

the issue is, if put breakpoint in there code never executes, how write method form close event?

thanks

in winforms event called formclosing:

private void form1_formclosing(object sender, formclosingeventargs e) {  }

make sure attached event in designer. adding method not enough!


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