VBA usporedba Operatorovi: Nije jednako, Less nego ili Jednako

โšก Pametni saลพetak

VBA usporedba Operators test one value against another and return True or False. This page defines the six operators, shows them inside an If statement, explains how text and dates are compared, and lists the mistakes that produce wrong results.

  • โš–๏ธ Svrha: Comparison operators validate data by testing a condition that evaluates to True or False.
  • ๐Ÿ”ข ล est Operatorovi: Equal, less than, greater than, not equal to, less than or equal to, and greater than or equal to.
  • ๐Ÿ” Dvostruka uloga: The equals sign compares inside a condition and assigns a value outside one.
  • ๐Ÿงช If Statement: Every comparison is placed inside If, ElseIf, or Do While to control which code runs.
  • ๐Ÿ”ค Text and Dates: Strings compare character by character and dates compare as serial numbers.
  • โš ๏ธ Precision Trap: Dva Double values that look identical can fail an equality test, so compare a rounded difference.

VBA usporedba Operaulagatelji

VBA usporedba Operaulagatelji

These are operators that are used to compare values. Comparison operators include equal to, less than, greater than and not equal to.

Operatori usporedbe koriste se za usporedbu vrijednosti u svrhu validacije. Recimo da ste developerping jednostavna aplikacija za prodajno mjesto. U ovoj aplikaciji ลพelite provjeriti unesene vrijednosti prije knjiลพenja. U takvim sluฤajevima moลพete koristiti operatore usporedbe. Ovaj operator ฤ‡e provjeriti negativne brojeve ili osigurati da plaฤ‡eni iznos ne prelazi naplaฤ‡eni iznos. Operatori usporedbe dobro doฤ‘u u takvim situacijama.

Every comparison returns one of two values, True or False, and never a number. That result is what an If statement acts on.

Sljedeฤ‡a tablica navodi operatore usporedbe definirane u VBA.

Operahumka Description
= Jednako: provjerava jesu li dvije vrijednosti jednake. Takoฤ‘er se koristi kao operator dodjele
< Less than: checks if the value on the left is smaller than the value on the right
> Greater than: checks if the value on the left is larger than the value on the right
<> Not equal to: checks if two values are different from each other
<= Less than or equal to: checks if the value on the left is smaller than or the same as the value on the right
>= Greater than or equal to: checks if the value on the left is larger than or the same as the value on the right

Seeing each operator applied to two variables makes the returned result easier to predict.

VBA usporedba Operatorovima s Primjerom

Sljedeฤ‡a tablica prikazuje Excel VBA usporedbu Operatorovi s primjerima i izlazom.

S / N Operahumka Primjer Izlaz
1 = Ako je x = z Tada Vraฤ‡a true ako su jednaki, inaฤe vraฤ‡a false
2 < Ako je x < z Tada Vraฤ‡a true ako je x manje od z, inaฤe vraฤ‡a false
3 > Ako je x > z Tada Vraฤ‡a true ako je x veฤ‡e od z, inaฤe vraฤ‡a false
4 <> Ako je x <> z Tada Vraฤ‡a true ako nisu jednaki, inaฤe vraฤ‡a false
5 <= Ako je x <= z Tada Vraฤ‡a true ako je x manje od ili jednako z, inaฤe vraฤ‡a false
6 >= If x >= z Then Vraฤ‡a true ako je x veฤ‡e ili jednako z, inaฤe vraฤ‡a false

Primjer izvornog koda

Jednaka usporedba Operahumka

If 2 = 1 Then
    MsgBox "True", vbOKOnly, "Equal Operator"
Else
    MsgBox "False", vbOKOnly, "Equal Operator"
End If

OVDJE,

  • "Ako je 2 = 1 onda... Inaฤe... Kraj ako" koristi if naredbu za procjenu uvjeta "2 = 1"
  • โ€œMsgBox...โ€ To je ugraฤ‘ena funkcija koja prikazuje okvir s porukom.
    • Prvi parametar "True" ili "False" je ono ลกto ฤ‡e biti prikazano u okviru s porukom. U naลกem primjeru, 2 nije jednako 1, stoga ฤ‡e se prikazati "false" u okviru poruke.
    • Drugi parametar โ€œvbOKOnlyโ€ je gumb koji se prikazuje u okviru s porukom
    • Treฤ‡i parametar โ€œEqual Operatorโ€ je naslov okvira s porukom.

Izvrลกenje gornjeg koda daje sljedeฤ‡e rezultate

Jednak Operahumka

That single test is the simplest form. Real macros combine comparisons and branch between several outcomes.

How to Use Comparison Operators in an If Statement

A comparison operator is rarely useful on its own. Its True or False result is fed to a decision structure, and the If statement is the one you will use most. The example below grades a score held in cell A1 and writes the outcome next to it.

Sub GradeScore()
    Dim Score As Long

    Score = Sheet1.Range("A1").Value

    If Score >= 90 Then
        Sheet1.Range("B1").Value = "Distinction"
    ElseIf Score >= 50 Then
        Sheet1.Range("B1").Value = "Pass"
    ElseIf Score < 0 Then
        MsgBox "A score cannot be negative", vbCritical, "Invalid Entry"
    Else
        Sheet1.Range("B1").Value = "Fail"
    End If
End Sub

The macro reads the score once, then tests it against three conditions in order. Four points explain why it behaves the way it does.

  • Redoslijed je vaลพan: VBA stops at the first branch that returns True. Placing Rezultat >= 50 prije Rezultat >= 90 would label every high score as a pass.
  • Else is the catch-all: Any value that fails every earlier test falls through to Else, so no input is left unhandled.
  • No chaining: VBA cannot read 0 <= Score <= 100Napiลกi If Score >= 0 And Score <= 100 Then pomoฤ‡u logiฤki operatori umjesto.
  • Same test, other structures: The identical condition drives Do While and Select Case, so the operators transfer to every loop you write.

๐Ÿ’ก Savjet: Declare the variable with a numeric type, as shown with Dim Score As Long. If the value stays a Variant holding text, โ€œ9โ€ > โ€œ10โ€ returns True because the comparison is done character by character.

Comparing Text and Dates in VBA

Numbers compare exactly as arithmetic suggests, but text and dates follow their own rules, and both surprise beginners.

Strings are compared one character at a time using their sort position, so โ€œAppleโ€ < โ€œBananaโ€ returns True. By default the comparison is case sensitive, which means โ€œguru99โ€ = โ€œGuru99โ€ returns False. Placing Opcija Usporedi tekst at the top of the module makes every string comparison in that module ignore case. For a single test without changing the module, use StrComp with the vbTextCompare argument.

Dates are stored as serial numbers counted from 30 December 1899, so they compare directly with the same six operators. Writing If DueDate < Date Then correctly detects an overdue item, because Date returns the current system date as the same kind of serial number. The one trap is a date held as text: โ€œ01/02/2026โ€ read from an imported file is a string, not a date, and compares alphabetically. Convert it with CDate before testing it.

Knowing the rules for each type removes most surprises, but a few errors still catch experienced developers.

Common Mistakes When Comparing Values in VBA

The five problems below account for most comparisons that return an unexpected result.

  • Assignment mistaken for comparison: Outside a condition, x = 5 stores 5 in x. Inside If, the same symbols test equality. VBA has no separate == operator, so read the context carefully.
  • Ispitivanje Double values for exact equality: Stored precision means 0.1 + 0.2 = 0.3 returns False. Compare the rounded difference instead, for example If Abs(a โ€“ b) < 0.000001 Then.
  • Comparing anything with Null: Null is not equal to anything, not even another Null. Test with IsNull rather than = Null.
  • Comparing text against a number: A cell holding โ€œ100โ€ as text is not equal to the number 100. Convert with CLng or CDbl before the test.
  • Reading .Text instead of .Value: The .Text property returns what is displayed, which is truncated by column width and formatting. Always compare .Value.

Preuzmite gornji Excel Code

Pitanja i odgovori

No. VBA evaluates the first comparison to True or False, then compares that result with 10, which gives a misleading answer. Write the two tests separately and join them with And.

Like compares a string against a pattern rather than an exact value. Wildcards include the asterisk for any characters and the question mark for one character, so โ€œGuru99โ€ Like โ€œGuru*โ€ returns True.

Use the Is operator, as in If ws Is Nothing Then. The equals sign compares values, while Is checks whether two object variables point at the same object, which is the only valid test for objects.

Yes. Describe the rule in plain words, such as flag any order above 500 placed before today, and an AI assistant returns the matching If condition. Check the boundary values before trusting it.

Yes. Paste the If block and an AI assistant traces which branch catches each value, then points out an unreachable ElseIf or a comparison between text and a number. Confirm the fix by stepping through the code.

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