automaticlly type 0 in text box when i delete

[firefoox]

i have made a simple a calculator but when i clear text box from 0 when i delete
number the textbox is empty
for example and type buton to calculate i got this error

~i wanna know how program automaticlly type 0 in text box when i delete or

~i want that 0 number to stay there in textbox if the texbox is empty

 

[JohnH]

Check if e.KeyCode is Delete key in KeyUp event and set Text property to "0".

 

[firefoox]

thnx

thnx||||||