EXCEL VBA Code to search cell for match to a list and delete if no match - excel

Question

(pic link below for this example): The data starts on row "A11", one block of data is A11 to A14, I need to search that range to see if it contains a member name from a list on sheet 2, for example Erik Christensen, if the list on sheet 2 doesnt have that name I need to delete rows A11 thru A14 and continue to the next block. The list on sheet 2 will have a varying amount of members to check so that needs to be taken into consideration. Once all the rows have been processed, I need to sorth them back to start at row A11.Please see pic and I will be extremely thankful for any help.
Sheet 1

Answer 1

For the below answer, I have made a few assumptions:
Your data will always start on row 11 of the first sheet in the
workbook.
The search term will always be found in the second row, below
Object:...
The data will always present in rows of 4, as shown in the picture,
with End: in the 4th row.
The list of valid names is in column A (beginning on A1) of the
second sheet in the workbook.
By "sorted back to start on row A11", I assume you mean that the
remaining blocks of data should start on row A11 and continue to the
end of the data, not that any actual sorting (i.e. by name) is
required.
This code will loop through all blocks of data (beginning with the last one, since we are deleting rows). If any of the names in column A of the second sheet appear in the block of data, that block is skipped. Otherwise, if no names appear, that block is deleted.
Sub SearchAndDeleteList()
Dim i As Long
Dim j As Long
Dim LRow As Long
Dim LListRow As Long
Dim BMatch As Boolean
'Find last instance of "End:" in
LRow = Sheets(1).Range("A:A").Find(what:="End*", searchdirection:=xlPrevious).Row
'Find last non-blank row in column A of second sheet
LListRow = Sheets(2).Range("A:A").Find(what:="*", searchdirection:=xlPrevious).Row
Application.ScreenUpdating = False
Application.Calculation = xlCalculationManual
Application.DisplayAlerts = False
Application.EnableEvents = False
If LRow >= 11 Then
'Make sure there are at least 11 rows of data
i = LRow
'MsgBox "First checkpoint: Last row of data is " & LRow 'Comment out this line
Do
BMatch = False
For j = 1 To LListRow
'Test this block to see if the value from j appears in the second row of data
If InStr(1, Sheets(1).Range("A" & i - 2).Value2, Sheets(2).Range("A" & j).Value2) > 0 Then
BMatch = True
Exit For
End If
Next j
'Application.StatusBar = "Match status for row " & i & ": " & BMatch
If Not BMatch Then
'Loop backwards to find the starting row (no lower than 11)
For j = i To 11 Step -1
If Sheets(1).Range("A" & j).Value2 Like "Object:*" Then Exit For
Next j
Sheets(1).Rows(j & ":" & i).Delete
i = j - 1
Else
'Find next block
If i > 11 Then
For j = i - 1 To 11 Step -1
If Sheets(1).Range("A" & j).Value2 Like "End:*" Then Exit For
Next j
i = j
Else
i = 10 'Force the loop to exit
End If
End If
'Application.StatusBar = "Moving to row " & i
Loop Until i < 11
'Loop back through and delete any blank rows
LRow = Sheets(1).Range("A:A").Find(what:="*", searchdirection:=xlPrevious).Row
'MsgBox "Second checkpoint: new last row of data is " & LRow
For i = LRow To 11 Step -1
If Sheets(1).Range("A" & i).Value2 = vbNullString Then Sheets(1).Rows(i).Delete
Next i
End If
'Application.StatusBar = False
Application.EnableEvents = True
Application.DisplayAlerts = True
Application.Calculation = xlCalculationAutomatic
Application.ScreenUpdating = True
End Sub

Answer 2

thanks to Nick's cracking actual OP's needs, I hereby propose a solution that should be more maintainable and/or changeable as per Op's future needs
Option Explicit
Sub SearchAndDeleteList2()
Dim dataSht As Worksheet
Dim dataRng As Range, namesRng As Range, cell As Range, rangeToDelete As Range
Dim firstAddress As String
'------------------------------
' setting stuff - begin
Set dataSht = ThisWorkbook.Sheets("Sheet1Data") '<== change 'data' sheet as per your needs
With dataSht
Set dataRng = .Range("A11:A" & .Cells(.Rows.Count, 1).End(xlUp).row)
End With
If dataRng.Rows(1).row < 11 Then Exit Sub
With ThisWorkbook.Sheets("Sheet2Names") '<== change 'names' sheet as per your needs
Set namesRng = .Range("A1:A" & .Cells(.Rows.Count, 1).End(xlUp).row)
End With
Call ApplicationSet(False, False, xlCalculationManual, False)
' setting stuff - end
'------------------------------
'------------------------------
' core code - begin
Set cell = dataRng.Find("End:", LookIn:=xlValues, LookAt:=xlWhole, SearchOrder:=xlByRows, SearchDirection:=xlNext)
If Not cell Is Nothing Then
firstAddress = cell.Address
Do
If Not MyMatch(GetName(cell.Offset(-2)), namesRng) Then Call UpdateRngToDelete(rangeToDelete, dataSht.Rows(cell.row).Offset(-3).Resize(4))
Set cell = dataRng.FindNext(cell)
Loop While cell.Address <> firstAddress
rangeToDelete.Delete
End If
' core code - end
'------------------------------
Call ApplicationSet(True, True, xlCalculationAutomatic, True)
End Sub
Function GetName(cell As Range) As String
Dim iIni As Integer
Dim iEnd As Integer
iIni = InStr(cell.value, """") '<== the 'name' is always preceeded by '"' character
iEnd = InStr(cell.value, "\") '<== the 'name' is always follwed by '/' character
GetName = Mid(cell.value, iIni + 1, iEnd - iIni - 1)
End Function
Sub UpdateRngToDelete(baseRng As Range, toBeAddedRng As Range)
If baseRng Is Nothing Then
Set baseRng = toBeAddedRng
Else
Set baseRng = Union(baseRng, toBeAddedRng)
End If
End Sub
Function MyMatch(value As String, rng As Range) As Boolean
MyMatch = Not IsError(Application.Match(value, rng, 0))
End Function
using separate functions or subs makes it easier (and faster!) to keep control and debug future code changes