How to check if substring exists in a string in QTP

To find a substring in a string you can use 2 approach in QTP.

• Regular Expressions
• Instr - string function

The following code illustrates the use of the RegExp object in QTP.

Function RegExpTest(patrn, strng)

Dim regEx, Match, Matches 

' Create variable.

Set regEx = New RegExp ' Create a regular expression.

regEx.Pattern = patrn ' Set pattern. 

regEx.IgnoreCase = True ' Set case insensitivity.

regEx.Global = True ' Set global applicability. 

Set Matches = regEx.Execute(strng) ' Execute search. 

For Each Match in Matches ' Iterate Matches collection. 

RetStr = RetStr & "Match found at position " 

Exit For 

 Next 

RegExpTest = RetStr

End Function

MsgBox(RegExpTest("abc", "jsdjshdabcskjdklsdj"))

Below code will find substring using instr function

If instr(1,"mainstring","main") > 0 Then
msgbox "main found in mainstring"
end if

More interview questions and answers on strings in QTP

1. What are the different string functions in QTP?
2. How to extract the digits from given string in QTP?
3. How to sort the array of strings in qtp
4. How to get the first character in string in QTP?
5. How to convert the string into upper case in QTP?
6. How to get the last character from the string in QTP?
7. How to replace the string in qtp?
8. How to check if substring exists in QTP?
9. Explain right, mid and left functions in qtp?
10. How to remove the spaces from string in qtp?
11. What are the trim functions in qtp?
12. Explain replace function in qtp with example.
13. Explain the split function in qtp with example.
14. Explain lcase and ucase functions in qtp.
15. What is the len function in qtp?
16. Give the example of instr function in qtp