Find And Replace String

[pa2ratczi]

Hi goo day! I'am Darrel, a newbie with visual basic, i have a problem with my recent project.

the projecti have is to replace the text from one letter to another. I dont know how to code it.

I'am using text box for my (input), another textbox for the letter to be replace, another text box for the letter to be place. and display the whole text in a label..

can some give me some hint or sample codes. Thank you so much!!!

Hoping for an immediate reponse for it!!!

[samycbe]

Dear Friend, Try this.......

1. I have one text box named TxtA and command button CmdProcess
2. I want to replace the text "a" with "z" in TxtA on cmdProcess - click
3. Please look the code on cmdProcess_clic k
4. Instead of "a" you can use other textbox.text

Dim a As String
a = TxtA.Text
a = ""
Dim x As String
x = ""
For i = 1 To Len(TxtA)
    If Mid(TxtA, i, 1) = "a" Then
        x = x + "b"
    Else
        x = x + Mid(TxtA, i, 1)
    End If
Next
MsgBox x

give a feed back

samy

[Killer42]

Actually, while the details may depend on what version of VB you are using, in VB6 you can use the Replace() function to do it in one statement.

[pa2ratczi]

that's not the output that i have to achieve, the program is like this

the user must enter a word in a textbox1(of any length) and must enter/assign a letter in textbox2 which is the letter to be replace from textbox1 and the user must enter a letter in textbox3 which is the letter to be substituted. and display the whole text in a label.

its like this if the user enters the word "paragraph" and the user wanted to change all letter "a" with letter "b" and the result must be "pbrbgrbph" .

hope you can help me sir.... its very difficult for me.... thank you

[Killer42]

That's what the code did, that samycbe posted. It's just that some of it was hard-coded rather than being taken from a textbox. After all, you can't expect us to do everything for you - you need to make a serious attempt at the work yourself.

Anyway, like I said, check out the Replace function. It's in the manual, and will do it all in one statement.

[vijaydiwakar]

that's not the output that i have to achieve, the program is like this

the user must enter a word in a textbox1(of any length) and must enter/assign a letter in textbox2 which is the letter to be replace from textbox1 and the user must enter a letter in textbox3 which is the letter to be substituted. and display the whole text in a label.

its like this if the user enters the word "paragraph" and the user wanted to change all letter "a" with letter "b" and the result must be "pbrbgrbph" .

hope you can help me sir.... its very difficult for me.... thank you

try this code
replace("<thy string>","<repl ace char>","<replac ed by>")
lbl.caption=rep lace(txt1.text, txt2.text,txt3. text)

[pa2ratczi]

yes i know that, that's why ive tried using mid.

the code its like this

Private Sub Command1_Click()
Dim str1 As String
Dim str2 As String
Dim str3 As String


str1 = Text1.Text
str2 = Text2.Text
str3 = Text3.Text

If Mid(str1, 1, 1) = str2 Then
    Mid(str1, 1, 1) = str3
    Label4.Caption = Mid(str1, 1)

End If
End Sub

and its working...but the problem is wat if the text is to long, i dont know how to loop my condition..

[Killer42]

Well, you could use a For loop with the length of the original string as the upper limit.

Also, when posting code, please use appropriate tags around it for readability. Details can be found here.

[pa2ratczi]

can help me how to construct a loop using "FOR".

[pa2ratczi]

guys, ive done it am finished with my project, thanks a lot for all the help, to contribute here the code....

Private Sub Command1_Click()
Dim str1 As String
Dim str2 As String
Dim str3 As String
Dim Counter As Integer


str1 = Text1.Text
str2 = Text2.Text
str3 = Text3.Text

For i = 1 To Len(str3)
    Counter = i + 1
    If Mid$(str3, i, 1) = str2 Then
        Mid$(str3, i, 1) = str1
        Label4.Caption = Mid$(str3, 1)
    End If
Next

End Sub

Hope you'll still help me guys sooner or later.. thanks!

[Lavs]

that's not the output that i have to achieve, the program is like this

the user must enter a word in a textbox1(of any length) and must enter/assign a letter in textbox2 which is the letter to be replace from textbox1 and the user must enter a letter in textbox3 which is the letter to be substituted. and display the whole text in a label.

its like this if the user enters the word "paragraph" and the user wanted to change all letter "a" with letter "b" and the result must be "pbrbgrbph" .

hope you can help me sir.... its very difficult for me.... thank you

Halu there... this is my suggestion...

'You should have three textboxes, a label, and one command button...
'Use the Replace() function in visual basic

Dim OriginalString, Replacement, tobeReplaced As String
Private Sub Command1_Click( )
OriginalString = Trim$(Text1.Tex t)
Replacement = Trim$(Text2.Tex t)
tobeReplaced = Trim$(Text3.Tex t)
Label1.Caption = Replace(Origina lString, tobeReplaced, Replacement)
End Sub