cplau
asked on
Replace String in VB.net
Hi all,
For example, I have a string = "ABCDEFGHIJKLMN"
If the string contains this pattern "DEF?" (i.e. DEF follows by any single character). I will substitute it with an empty string.
The value of the string will be "ABCGHIJKLMN" (the four characters DEF? shall be replaced)
How can I do this in VB.NET? Please advise. Thanks.
For example, I have a string = "ABCDEFGHIJKLMN"
If the string contains this pattern "DEF?" (i.e. DEF follows by any single character). I will substitute it with an empty string.
The value of the string will be "ABCGHIJKLMN" (the four characters DEF? shall be replaced)
How can I do this in VB.NET? Please advise. Thanks.
Dim strText As String = "ABCDEFGHIJKLMN"
Response.Write(strText.Rep
result would be ABC@GHIJKLMN
Response.Write(strText.Rep
result would be ABC@GHIJKLMN
you can use regularExpression for that
Dim testString As String = "ABCDEFGHIJKLMN"
Dim str1 As String = System.Text.RegularExpress
Dim testString As String = "ABCDEFGHIJKLMN"
Dim str1 As String = System.Text.RegularExpress
ASKER
My String should be euqal to "ABCHIJKLMN" in the end....
My sarching pattern is "DEF?". It is "DEF" + any single character.
My sarching pattern is "DEF?". It is "DEF" + any single character.
@cplau - try the regular expression example !
Use Regular expression that would only help here i think
1.*, which describes "0 or more occurrences",
2.+, which describes "1 or more occurrences", and
3.?, which describes "0 or 1 occurrence".
abc$ abc, 123abc, any string ending with abc
1.*, which describes "0 or more occurrences",
2.+, which describes "1 or more occurrences", and
3.?, which describes "0 or 1 occurrence".
abc$ abc, 123abc, any string ending with abc
ASKER
.? describes "0 or 1 occurrence".
Is there any expression to match extactly 1 occurrence only?
Is there any expression to match extactly 1 occurrence only?
This one may not be ideal but it works
Dim str As String = "ABCDEFGHIJKLMNOPQRSTUVWXY
Dim str2 = str.Substring(0, str.IndexOf("DEF")) & str.Substring(str.IndexOf(
MsgBox(str2)
Dim str As String = "ABCDEFGHIJKLMNOPQRSTUVWXY
Dim str2 = str.Substring(0, str.IndexOf("DEF")) & str.Substring(str.IndexOf(
MsgBox(str2)
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