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Nov 15th, 2006

Comparison of text in textbox

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Hi im doing a application tool which will check for spoof email headers. now i want to do some comparison of text in textbox

can anyone help me in this?

thank you

Manithan

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Nov 15th, 2006

Re: Comparison of text in textbox

Sure which part are you stuck on?

iamthwee

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Nov 16th, 2006

Re: Comparison of text in textbox

Click to Expand / Collapse Quote originally posted by iamthwee ...

Sure which part are you stuck on?

HI thanks for ure reply

Im stuck on the comparison part

From: ""
Received:""

(Toggle Plain Text)

Dim Text1 AsString = "Received:"""
Dim Text2 As String = "From:"""

If String.Compare(Text1, Text2, True) = 1 Then
MsgBox("Genuine Email")
End If
If String.Compare(Text1, Text2, False) = 0 Then
MsgBox("Spoofed Email")
End If
If TextBox2.Text = "" Then
MessageBox.Show("You must enter something in the text box")
End If

I did this but it is not working...it doesnt comparing..coz if the from and received from is same then its genuine else it is spoofed...

Can you help me on this?

Thanks.

Last edited by tgreer; Nov 21st, 2006 at 2:35 pm. Reason: Added code tags, removed non-code formatting.

Manithan

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Nov 16th, 2006

Re: Comparison of text in textbox

Are you sure your compare method is correct?

For example if both strings are identical is the value equal to 1, like you have put or is it equal to 0.

I think it is equal to 0.

Quote ...

Comparing Strings
The Compare method compares two strings and returns an integer value. The return value of Compare method can be less than zero, greater than zero or equals to zero.

Value Meaning
Less than zero When first string is less than second.
Zero When both strings are equal.
Greater than zero When first string is greater than zero.

iamthwee

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Nov 16th, 2006

Re: Comparison of text in textbox

Click to Expand / Collapse Quote originally posted by iamthwee ...

Are you sure your compare method is correct?

For example if both strings are identical is the value equal to 1, like you have put or is it equal to 0.

I think it is equal to 0.

Can u show me the codes for it?

Thank u

Manithan

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Nov 16th, 2006

Re: Comparison of text in textbox

I think you want to use the equals method here to check if they are equal, that is, the same string.

Dukane

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Nov 21st, 2006

Re: Comparison of text in textbox

Click to Expand / Collapse Quote originally posted by Dukane ...

I think you want to use the equals method here to check if they are equal, that is, the same string.

Hi

Can u show me the codes for it ???i still trying but its not wokin coz once i click the button it not comparing the text in the textbox...

Manithan

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Nov 21st, 2006

Re: Comparison of text in textbox

I honestly can't see how you don't understand this?

VB.NET Syntax (Toggle Plain Text)
Dim var As String = "www.google.com"
 
Dim test As String = "www.google.com"
 
If test = var Then
  MsgBox("match")
End If
 
Else
  MsgBox("wrong")
Dim var As String = "www.google.com"

Dim test As String = "www.google.com"

If test = var Then
  MsgBox("match")
End If

Else
  MsgBox("wrong")

iamthwee

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Nov 21st, 2006

Re: Comparison of text in textbox

It's not working because you never check the contents of the textbox in your code.

Dukane

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Nov 23rd, 2006

Re: Comparison of text in textbox

Quote ...

Dim var As String = "www.google.com"

Dim test As String = "www.google.com"

If test = var Then
MsgBox("match")
End If

Else
MsgBox("wrong")

Hi Thanx for ure code...but this not the code that im sayin abt....act i dunnoe to compare a string within a string eg:From:"BOB" and Received:"Lisa" have to compare that both from a chunk of email headers from the microsoft outlook..coz im doin a application tool to detect for spoofed email..so i have to compare the 2 field from:"" & received:"" field....if "BOB" and "LISA" r the same den its genuine email else its spoofed....its like compare string within string...i hope u get wad i mean here...thank u very much....it will b a great help if u can help me on dis....

You say you don't know how to compare a string within a string.

You need to google 'searching for substrings within a string'. I know vb.net has a method for this.

Last edited by iamthwee; Nov 23rd, 2006 at 4:33 pm.

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