Excel: Selecting single cell vs. whole column in VBA - vba

Question

This is a newb question:
I have two sheets. Sheet 1 is where there is a form to enter data. When you double click on any cell in column A, a user form pop up comes up. You enter a few keys from any entry that is in the A column of sheet 2 and it autocompletes.
The problem I am having is: I only want to enter data on a specific cell, for instance A1 .. not the whole column of A. A second thing I wanted was that instead of a double click, I wanted it to work with a single click. Can anyone please help.
Here is the VBA code for Sheet 1 where you enter the data
Private Sub Worksheet_BeforeDoubleClick(ByVal Target As Range, Cancel As Boolean)
Dim uiChosen As String
Dim MyList As Range
Dim myPrompt As String
If Target.Column <> 1 Then Exit Sub
Set MyList = Sheet2.Range("Cariler")
myPrompt = "Lütfen Bir Cari Seçin"
uiChosen = UserForm1.ChooseFromList(MyList, myPrompt, Default:=Target.Value, xlFilterStyle:=xlContains)
If StrPtr(uiChosen) <> 0 Then
Target.Value = uiChosen
Cancel = True
End If
End Sub
Here is the code for the user form:
Option Explicit
' in userform's code module
Dim FullList As Variant
Dim FilterStyle As XlContainsOperator
Dim DisableMyEvents As Boolean
Dim AbortOne As Boolean
Const xlNoFilter As Long = xlNone
Private Sub butCancel_Click()
Unload Me
End Sub
Private Sub butOK_Click()
Me.Tag = "OK"
Me.Hide
End Sub
Private Sub ComboBox1_Change()
Dim oneItem As Variant
Dim FilteredItems() As String
Dim NotFlag As Boolean
Dim Pointer As Long, i As Long
If DisableMyEvents Then Exit Sub
If AbortOne Then AbortOne = False: Exit Sub
If TypeName(FullList) Like "*()" Then
ReDim FilteredItems(1 To UBound(FullList))
DisableMyEvents = True
Pointer = 0
With Me.ComboBox1
Select Case FilterStyle
Case xlBeginsWith: .Tag = LCase(.Text) & "*"
Case xlContains: .Tag = "*" & LCase(.Text) & "*"
Case xlDoesNotContain: .Tag = "*" & LCase(.Text) & "*": NotFlag = True
Case xlEndsWith: .Tag = "*" & LCase(.Text)
Case xlNoFilter: .Tag = "*"
End Select
For Each oneItem In FullList
If (LCase(oneItem) Like .Tag) Xor NotFlag Then
Pointer = Pointer + 1
FilteredItems(Pointer) = oneItem
End If
Next oneItem
.List = FilteredItems
.DropDown
DisableMyEvents = False
If Pointer = 1 Then .ListIndex = 0
End With
End If
End Sub
Private Sub ComboBox1_Click()
butOK.SetFocus
End Sub
Private Sub ComboBox1_KeyDown(ByVal KeyCode As MSForms.ReturnInteger, ByVal Shift As Integer)
Select Case KeyCode
Case vbKeyReturn: Call butOK_Click
Case vbKeyUp, vbKeyDown: AbortOne = True
End Select
End Sub
Private Sub Label1_Click()
End Sub
Private Sub UserForm_Activate()
ComboBox1.SetFocus
If ComboBox1.Text <> vbNullString Then
Call ComboBox1_Change
End If
End Sub
Private Sub UserForm_Initialize()
ComboBox1.MatchEntry = fmMatchEntryNone
End Sub
Public Function ChooseFromList(ListSource As Variant, Optional Prompt As String = "Choose one item", _
Optional Title As String = "Cari Arama Programı", Optional Default As String, _
Optional xlFilterStyle As XlContainsOperator = xlBeginsWith) As String
Dim Pointer As Long, oneItem As Variant
If TypeName(ListSource) = "Range" Then
With ListSource
Set ListSource = Application.Intersect(.Cells, .Parent.UsedRange)
End With
If ListSource Is Nothing Then Exit Function
If ListSource.Cells.Count = 1 Then
ReDim FullList(1 To 1): FullList(1) = ListSource.Value
ElseIf ListSource.Rows.Count = 1 Then
FullList = Application.Transpose(Application.Transpose(ListSource))
Else
FullList = Application.Transpose(ListSource)
End If
ElseIf TypeName(ListSource) Like "*()" Then
ReDim FullList(1 To 1)
For Each oneItem In ListSource
Pointer = Pointer + 1
If UBound(FullList) < Pointer Then ReDim Preserve FullList(1 To 2 * Pointer)
FullList(Pointer) = oneItem
Next oneItem
ReDim Preserve FullList(1 To Pointer)
ElseIf Not IsObject(ListSource) Then
ReDim FullList(1 To 1)
FullList(1) = CStr(ListSource)
Else
Err.Raise 1004
End If
Me.Caption = Title
Label1.Caption = Prompt
FilterStyle = xlFilterStyle
DisableMyEvents = True
ComboBox1.Text = Default
ComboBox1.List = FullList
DisableMyEvents = False
butOK.SetFocus
Me.Show
With UserForm1
If .Tag = "OK" Then ChooseFromList = .ComboBox1.Text
End With
End Function

Answer 1

There is no single click event. Use Intersect to test wherther or not the target cell is within a given range.
Private Sub Worksheet_BeforeDoubleClick(ByVal Target As Range, Cancel As Boolean)
If Not Intersect(Target, Range("A1")) Is Nothing Then
Dim uiChosen As String
Dim MyList As Range
Dim myPrompt As String
If Target.Column <> 1 Then Exit Sub
Set MyList = Sheet2.Range("Cariler")
myPrompt = "Lütfen Bir Cari Seçin"
uiChosen = UserForm1.ChooseFromList(MyList, myPrompt, Default:=Target.Value, xlFilterStyle:=xlContains)
If StrPtr(uiChosen) <> 0 Then
Target.Value = uiChosen
Cancel = True
End If
End If
End Sub