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Thread: Pass Button Name to Function

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  1. #1

    Thread Starter
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    Nov 2014
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    Question Pass Button Name to Function

    Hi,
    I'm using the below code to clear a user attribute in Active Directory when a button is clicked. I have several of these buttons (1 each for title, department, address, city, state, zip, country, phone). I could just have the same code below for each of the 8 button clicks. However, I thought it might be cleaner, and reduce the amount of code, to pass the name of each button to a single sub routine, so you only need it once, not 8 times, and then use
    Code:
    dirEntryResults.Properties("btnName").Clear()
    . However, I can't see if it's possible to pass the button name to a sub routine? Is this possible, and if so, how?

    Code:
        Private Sub ClearTitle_Click(sender As Object, e As EventArgs) Handles ClearTitle.Click
            Dim ADName As String = GetLogonName()
            Dim dirEntry As DirectoryEntry = GetDirectoryEntry()
            Dim dirSearcher As DirectorySearcher = New DirectorySearcher(dirEntry)
            dirSearcher.Filter = "(&(objectClass=user)(objectCategory=person)(sAMAccountName=test.account))"
            dirSearcher.SearchScope = SearchScope.Subtree
            Dim searchResults As SearchResult = dirSearcher.FindOne()
            If Not searchResults Is Nothing Then
                Dim dirEntryResults As New DirectoryEntry(searchResults.Path)
                dirEntryResults.Properties("title").Clear()
                dirEntryResults.CommitChanges()
                dirEntryResults.Close()
                MsgBox("Attribute Cleared", MsgBoxStyle.OkOnly, "Success")
            End If
            dirEntry.Close()
        End Sub

  2. #2
    Powered By Medtronic dbasnett's Avatar
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    Re: Pass Button Name to Function

    I think I just answered this at SO

    Code:
        Private Sub Clears_Click(sender As Object, e As EventArgs) Handles ClearTitle.Click, ClearAddress.Click, ClearCity.Click 'etc
    
            Dim BTN_NAME As String = DirectCast(sender, Button).Name.ToLower.Replace("clear", "")
    
            Dim ADName As String = GetLogonName()
            Dim dirEntry As DirectoryEntry = GetDirectoryEntry()
            Dim dirSearcher As DirectorySearcher = New DirectorySearcher(dirEntry)
            dirSearcher.Filter = "(&(objectClass=user)(objectCategory=person)(sAMAccountName=test.account))"
            dirSearcher.SearchScope = SearchScope.Subtree
            Dim searchResults As SearchResult = dirSearcher.FindOne()
            If Not searchResults Is Nothing Then
                Dim dirEntryResults As New DirectoryEntry(searchResults.Path)
    
                dirEntryResults.Properties(BTN_NAME).Clear()
    
                dirEntryResults.CommitChanges()
                dirEntryResults.Close()
                MsgBox("Attribute Cleared", MsgBoxStyle.OkOnly, "Success")
            End If
            dirEntry.Close()
        End Sub
    Something like this. Note that I am guessing at the actual names of the buttons, and using only one handler for all of the clicks.
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  3. #3

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    Resolved Re: Pass Button Name to Function

    Yes, thank you for answering in both places. I usually ask in a few forums, as some are more active than others!

    I'd found a few other posts after I posted my question, which suggested adding the
    Code:
    Dim btnName As String
    or
    Code:
    Dim btnName as Button
    but I was getting the error
    Error 2 Value of type 'System.Windows.Forms.Button' cannot be converted to 'String'.
    Adding the
    Code:
    DirectCast(sender, Button).Name
    line that you suggested fixed it, and it now works! Full code below:

    Code:
        Private Sub ClearBtn_Click(sender As Object, e As EventArgs) Handles title.Click, physicalDeliveryOfficeName.Click, department.Click, telephoneNumber.Click, streetAddress.Click, st.Click, postalCode.Click, mobile.Click, l.Click, c.Click
            Dim btnName As String = DirectCast(sender, Button).Name
            Dim ADName As String = GetLogonName()
            Dim dirEntry As DirectoryEntry = GetDirectoryEntry()
            Dim dirSearcher As DirectorySearcher = New DirectorySearcher(dirEntry)
            dirSearcher.Filter = "(&(objectClass=user)(objectCategory=person)(sAMAccountName=" & ADName & "))"
            dirSearcher.SearchScope = SearchScope.Subtree
            Dim searchResults As SearchResult = dirSearcher.FindOne()
            If Not searchResults Is Nothing Then
                Dim dirEntryResults As New DirectoryEntry(searchResults.Path)
                dirEntryResults.Properties(btnName).Clear()
                dirEntryResults.CommitChanges()
                dirEntryResults.Close()
                MsgBox("Attribute Cleared", MsgBoxStyle.OkOnly, "Success")
                Form1_Load(Me, New System.EventArgs)
            End If
            dirEntry.Close()
        End Sub

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