Help with data types

[jbg1978]

I have a question regarding data types. According to a page I found on this site, when a variable = "" (empty string), then it will be considered a boolean type false and have a value of zero. When I perform a logic check against it (if $strVariable = "" then...) it doesn't register as true because $strVariable actually has a value of zero. I can't make the logic check: if $strVariable = 0 then...because the variable may actually legitimately contain a zero for the value. Any thoughts on how to check if the $strVariable simply = an empty string at all? Or, how to have AutoIT explicitly treat the variable as a string?

Thank you,

jbg1978

[Richard Robertson]

You could try "" = $strVariable.

[jbg1978]

You could try "" = $strVariable.

I tried to set it to empty string, but when I view the output, it's still a zero.

[monoceres]

It works for me:

$var=""
If $var="" THen MsgBox(0,"","True")

[Richard Robertson]

I meant to use that as the If comparison. That wasn't an assignment statement.

[SmOke_N]

If StringLen($strVariable) = 0 Then

[jbg1978]

Thank you all. I'll try these suggestions and post back.

[trancexx]

I have a question regarding data types. According to a page I found on this site, when a variable = "" (empty string), then it will be considered a boolean type false and have a value of zero. When I perform a logic check against it (if $strVariable = "" then...) it doesn't register as true because $strVariable actually has a value of zero. I can't make the logic check: if $strVariable = 0 then...because the variable may actually legitimately contain a zero for the value. Any thoughts on how to check if the $strVariable simply = an empty string at all? Or, how to have AutoIT explicitly treat the variable as a string?

Thank you,

jbg1978

There are String() and IsString()

$strVariable = String($strVariable)

That's string for sure.

[rasim]

trancexx

There are String() and IsString()

Yes

$str = ""
MsgBox(0, "String", IsString($str) = True)
MsgBox(0, "Number", IsNumber($str) = True)

$str = 0
MsgBox(0, "String", IsString($str) = True)
MsgBox(0, "Number", IsNumber($str) = True)

[jbg1978]

I've already tried some of the suggestions before I posted. Like converting to string still updated the recordset with a zero, and logic check if "" = $str still produced false for me. The length($str) did end up being the resolution though. It worked like a charm. Thank you! Thanks to everyone who posted.

Edited September 18, 2008 by jbg1978