instruction for void independent of the blank characters containing

hi you guys

i have a problem here
i want to identify if is blank for use a command

if importe="" then..

but some times user insert blanks and i need to add
if importe=" " then
if importe="  " then
for fill up the contition

is any command to use for says if is blank then?
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Melih SARICAOwnerCommented:
if string.isnullorempty(importe.trim) then
   //do ur stuff
käµfm³d 👽Commented:
Another alternative would be to use IsNullOrWhiteSpace, depending on the version of the Framework in use here.

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Visual Basic.NET

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