String to Int ???

J

jnbarban

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Do you Know how to do that :

B4X: 
if MyTextBox.text > 0  then
...
end if

( MyTextBox.text = "1234")

i've got this error : " NumberFormatException"

It is not possible to do somthing like cint(MyTextBox.text) in order to get me a Integer of my text value ?
 
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vangogh

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to "bypass" a null string, I always use

"0" & MyTextBox.text > 0

so it the textbox is empty, this gives

"0" & "" = 0

if it is "1234" -> "01234" > 0

it works :sign0137:
 
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fabero

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vangogh said:
to "bypass" a null string, I always use

"0" & MyTextBox.text > 0

so it the textbox is empty, this gives

"0" & "" = 0

if it is "1234" -> "01234" > 0

it works :sign0137:
Click to expand...

Can someone explain more a bit? I've the same problem.. :BangHead::BangHead:
 
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vangogh

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simply use the debugger and try my suggestion step by step... it works

my post isn't a problem but a workaround :sign0060:
 
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NeoTechni

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fabero said:
Can someone explain more a bit? I've the same problem.. :BangHead::BangHead:
Click to expand...

Let's say the user enters nothing in the text box

Since you're checking 0 & textbox.text, it will read "0" which is a number, instead of crashing.

You can also just use IsNumber () to check if it's valid first
 
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