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Setting an event for an array of radio buttons

Posted on 2011-09-07
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Last Modified: 2012-06-21
My code dynamically creates radio buttons.  How do add a handler to that to point to code?
Dim rbA(16) As RadioButton
        Dim rbH(16) As RadioButton

        For iLoop = 1 To 16

            rbA(iLoop) = New RadioButton
            rbH(iLoop) = New RadioButton

            With rbA(iLoop)

                .Text = "TEST"
                .Checked = False
                .GroupName = "GroupA" & iLoop
                .ID = "Here" & iLoop
                .BackColor = Drawing.Color.SteelBlue

            End With

            Panel1.Controls.Add(rbA(iLoop))

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Question by:NOTBOB90
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7 Comments
 
LVL 75

Expert Comment

by:käµfm³d 👽
ID: 36499003
Use the AddHanler keyword:
Dim rbA(16) As RadioButton
        Dim rbH(16) As RadioButton

        For iLoop = 1 To 16

            rbA(iLoop) = New RadioButton
            rbH(iLoop) = New RadioButton

            AddHandler rbA(iLoop).CheckChanged, AddressOf Radio_CheckChanged
            AddHandler rbH(iLoop).CheckChanged, AddressOf Radio_CheckChanged

            With rbA(iLoop)

                .Text = "TEST"
                .Checked = False
                .GroupName = "GroupA" & iLoop
                .ID = "Here" & iLoop
                .BackColor = Drawing.Color.SteelBlue

            End With

            Panel1.Controls.Add(rbA(iLoop))

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Accepted Solution

by:
käµfm³d   👽 earned 50 total points
ID: 36499011
P.S.

The syntax for AddHandler is:

AddHandler obj.EventName, AddressOf EventHandlerFunctionName
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Author Comment

by:NOTBOB90
ID: 36499025
This is on the web, not .net.  Will it work like that there?
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LVL 75

Expert Comment

by:käµfm³d 👽
ID: 36499118
This is on the web, not .net.  Will it work like that there?
It will add a server-side event handler--though you still need to code the actual handler function. If you want a client-side handler (i.e. javascript), then you would need to use the ScriptManager.
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Author Comment

by:NOTBOB90
ID: 36499827

WHen I do this:

AddHandler rbH(iLoop).CheckChanged, AddressOf proRadioClick

I get this error hovering over checkchanged

checkchanged is not an event of system.web.ui..webcontrols.radiobutton
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LVL 75

Expert Comment

by:käµfm³d 👽
ID: 36499977
I was just throwing an event out as an example. The correct name is CheckedChanged. See here for more details.
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