Syntax error (missing operator) when using single and double apostrophe(' and ") with the input data

Try:
Chr(34) & Me.Text_box & Chr(34)

I tried but showing run time error 2471 :(

DCount("*", "REVIEW_TYPE", "Review_Name = Chr(34) & Me.Text_RVTEdit.value & Chr(34) and Review_Type_Id <>  CLng('" & Me.Combo_RVEdit & "')")

it looks like you need to escape the characters, which is done by a single quote so
('I'll be there in a second O'Connor') will be ('I''ll be there in a second O''Connor')
or
(Quote:"Show me the money") would be (Quote':'"Show me the money'")

this is not the safest/best way to escape characters but its a start...

How about

Chr(34) & Replace(Replace(Replace(Me.Text_box, Chr(39),""),Chr(39) & Chr(39),""), Chr(34),"")   & Chr(34)

Actually the user can be enter any type of key values (', ",&,$,% etc ) to the database, is there any way to allow this?
I was using the controls this way-  '" & Me.Text_Box & "' but its not working..

Try:

DCOUNT ("*", "REVIEW_TYPE", "Review_Name = "  & Chr(34) & Me.Text_RVTEdit.value & Chr(34)  & " and Review_Type_Id <>  CLng(" & Me.Combo_RVEdit & ")")

<Getting Syntax error (missing operator) when inserting data with single and double apostrophe(' and ") .
Not sure how you are "Inserting", but this works fine for me:

CurrentDb.Execute "INSERT INTO YourTable (YourTextField) Values(" & "'" & Replace(Me.txtTextWithApostrophe, "'", "''") & "'" & ")", dbFailOnError
test.mdb

There may be a way to "tighten up" the syntax in my above post, but again, it works fine for me...

Any of the above posts should work, but here's another approach using the Parameters collection.  This Access VBA is similar to what you would use in .Net:

Private Sub cmdGetCount_Click()
    Dim qd As New DAO.QueryDef
    On Error GoTo EH
    CurrentDb.QueryDefs.Delete ("qtemp")
    Set qd = CurrentDb.CreateQueryDef("qtemp", "SELECT COUNT(*) AS TotReviews FROM REVIEW_TYPE WHERE Review_Name = @ReviewName AND Review_Type_Id <> @ID ")
    With qd
        .Parameters("@ReviewName") = Me.Text_RVTEdit
        .Parameters("@ID") = Me.Combo_RVEdit
    End With
    MsgBox qd.OpenRecordset.Fields("TotReviews")
    Set qd = Nothing
    Exit Sub
EH:
    If Err.Number = 3265 Then Resume Next
    MsgBox "ERROR " & Err.Number & ": " & Err.Description
   
End Sub

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With the parameters collection, you don't need to worry about escaping special characters (because you're not using text or date delimiters), and if you ever upsize to a SQL platform, this method avoids SQL Injection problems in your action queries.

In Reviewing this post, I discovered I was looking at this from the wrong point of view
(SQL Insert)

So my syntax is valid, but not really specific for your situation (DCount)
:-(

Jeff

Thanks Fyed, Its really simple and a good solution, Thanks.

I want to thank you to all other experts who helped me in this issue...

Glad to help.

I have another version of that function which allows you to identify the wrapper, so can choose a single quote (used with SQL Server pass through queries), double quote, or even # for wrapping numbers.