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Checking to see if email already exists in Database

Thread began 4/13/2010 9:45 am by John Langer | Last modified 7/01/2010 9:55 am by John Langer | 3097 views | 8 replies


ASP Server validation:

many times I have the necessity to compare two value, one in the textbox and another one in the db; if the values are the same the answer must be a error...
I haven't find of better who...
1) apply the command "Like Entry" whit a little modify:

if not recordset1.EOF or Not recordset1.BOF then
mailx="" ' to bypass empty value
end if

WAFV_Errors = WAFV_Errors & WAValidateNOLE(cStr(Request.Form("email")) & "", mailx & "",true,2)

2) modify the code in WAVT_Scripts_VB.asp and add this function:

function WAValidateNOLE(value1,value2,required,number)
dim WAFV_ErrorMessage, isValid
WAFV_ErrorMessage = ""
isValid = true
if (value1 = value2 OR (required AND value1 = "")) then
isValid = false
end if
if (NOT isValid) then
WAFV_ErrorMessage = WAFV_ErrorMessage & "," & number
end if
WAValidateNOLE = WAFV_ErrorMessage
end function

Exist another method? If no, is possible to add this function (unLike Entry) at the next update?

Thank you

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