How to dynamically build a name 2

[markdmac]

I have create a list of choices in a list box. When I grab the selected item properties I want that to trigger showing a second list box while hiding all others. There will be a rather long list.

I want to remove all spaces from the selected item text and prefix it with lb.

An example of what I am trying to do is:

    Private Sub MainMenu_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MainMenu.SelectedIndexChanged
        Dim mmSelectedText = "lb" + Replace(MainMenu.SelectedItem, " ", "") As String
        lbManagingArchiving.Visible = False
        lbConfiguringSupportforClientsandDevices.Visible = False

        mmSelectedText.Location = New Point(27, 205)
        mmSelectedText.Visible = True


    End Sub

I then get an error that Location is not valid for a string. How do I convert my text string into a list box name so I can set the properties on the list box?

Any assistance is greatly appreciated.

Alternatively I would love to be able to create an expanding list box if anyone can point me to how to do that.

I hope that helps.

Regards,

Mark

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[jebenson]

Check out this FAQ:

faq796-5698

Once you have the control's name, the code in the FAQ above should give you what you need.



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[SgtJarrow]

Couple of things...

First, instead of a bunch of listboxes and hiding/showing one, why not have one listbox that you change the datasource for - depending on the selection in the first listbox. This would shorten your code a bunch and make management much easier.

If that is not an option, the second item is that you cannot DIRECTLY access a control like you are trying to do. In order to modify a control during runtime, you need to get the actual control and perform the work against that control. You can get the name of the control like you have done, but then will need to cast that into a listbox, finding the actual control on the page, and then set your properties against the control itself.

Something like (typed, not tested):

Dim mmSelectedText As String = "lb" + Replace(MainMenu.SelectedItem, " ", "")
Dim lbControl As Listbox = DirectCast(Form.FindControl(mmSelectedText) As ListBox) 'This line might not be correct but the idea is correct
        lbManagingArchiving.Visible = False
        lbConfiguringSupportforClientsandDevices.Visible = False

        lbControl .Location = New Point(27, 205)
        lbControl .Visible = True

=======================================
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Robert L. Johnson III
CCNA, CCDA, MCSA, CNA, Net+, A+, CHDP
C#.NET Programmer

 

[markdmac]

Thanks guys, I greatly appreciate your feedback as it helps me to widen my skill set. I'm normally just a scripting guy but I dabble in a bit of VB.net on occasion.

I decided it would be a lot easier on myself to use a menu control which allows me to drill down on things.

My project is going to customize PowerShell commands for about 150 Microsoft Lync tasks and the built in expandable topic capabilities of the menu was what I was trying to recreate in the first place.

Regards,
Mark

I hope that helps.

Regards,

Mark

Check out my scripting solutions at

http://www.thespidersparlor.com/vbscript

Work SMARTER not HARDER. The Spider's Parlor's Admin Script Pack is a collection of Administrative scripts designed to make IT Administration easier! Save time, get more work done, get the Admin Script Pack.