I am working on a custom control about dynamic category. Code is like that

--- This code work ---
    Public Sub RaisePostBackEvent(ByVal eventArgument As String) Implements System.Web.UI.IPostBackEventHandler.RaisePostBackEvent
        RaiseEvent OnNodeClick(eventArgument)
    End Sub

    Private Sub AddChildCategory(ByVal id As Int64, ByVal description As String)
        Dim link As New Button
        link.Text = description
        link.Width = Me.Width
        link.Attributes.Add("OnClick", Page.GetPostBackEventReference(Me, Str(id)))
        AddItem(link, "grid_item")

    End Sub

--- But this doesn't work

    Public Sub RaisePostBackEvent(ByVal eventArgument As String) Implements System.Web.UI.IPostBackEventHandler.RaisePostBackEvent
        RaiseEvent OnNodeClick(eventArgument)
    End Sub

    Private Sub AddChildCategory(ByVal id As Int64, ByVal description As String)
        Dim link As New LinkButton  'I changed object from Button to LinkButton
        link.Text = description
        link.Width = Me.Width
        link.Attributes.Add("OnClick", Page.GetPostBackEventReference(Me, Str(id)))
        AddItem(link, "grid_item")

    End Sub
----------------------------------------------------------------------
if i use Button object
When click on Button.. RaisePosBackEvent can firing.. there is no problem

but i use LinkButton object
When click on LinkButton.. RaisePosBackEvent can't firing.. what is the problem..??

i couldn't solve this..

Can you post the HTML markup that is being produced for each example?

---

Steven Bey

Recursion: see Recursion

This HTML block is LinkButton's
    <tr>
    <td class=""><a id="Link0" OnClick="JavaScript:__doPostBack('CategoryList1',' 0')" href="javascript:__doPostBack('Link0','')" style="color:White;background-color:SteelBlue;border-style:Solid;width:224px;">Products</a></td>
    </tr><tr>
        <td class="grid_item"><a id="Link1" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 1')" href="javascript:__doPostBack('Link1','')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;">Category1</a></td>
    </tr><tr>
        <td class="grid_item"><a id="Link2" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 2')" href="javascript:__doPostBack('Link2','')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;">Category2</a></td>
    </tr><tr>
    <td class="grid_item"><a id="Link3" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 3')" href="javascript:__doPostBack('Link3','')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;">Category3</a></td>
    </tr><tr>
        <td class="grid_item"><a id="Link4" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 4')" href="javascript:__doPostBack('Link4','')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;">Category4</a></td>
    </tr><tr>
        <td class="grid_item"><a id="Link5" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 5')" href="javascript:__doPostBack('Link5','')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;">Category5</a></td>
    </tr><tr>
        <td class="grid_item"><a id="Link6" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 6')" href="javascript:__doPostBack('Link6','')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;">Category6</a></td>
    </tr><tr>
        <td class="grid_item"><a id="Link7" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 7')" href="javascript:__doPostBack('Link7','')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;">Category7</a></td>
    </tr><tr>
        <td class="grid_item"><a id="Link8" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 8')" href="javascript:__doPostBack('Link8','')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;">Category8/a></td>
    </tr>

----------------------------------------------------------------------------------------------------------------------------------------
This HTML block is Button's
    <tr>
    <td class=""><input type="submit" name="Link0" value="Products" id="Link0" OnClick="JavaScript:__doPostBack('CategoryList1',' 0')" style="color:White;background-color:SteelBlue;border-style:Solid;width:224px;" /></td>
    </tr><tr>
        <td class="grid_item"><input type="submit" name="Link1" value="Category1" id="Link1" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 1')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;" /></td>
    </tr><tr>
        <td class="grid_item"><input type="submit" name="Link2" value="Category2" id="Link2" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 2')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;" /></td>
    </tr><tr>
        <td class="grid_item"><input type="submit" name="Link3" value="Category3" id="Link3" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 3')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;" /></td>
    </tr><tr>
        <td class="grid_item"><input type="submit" name="Link4" value="Category4" id="Link4" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 4')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;" /></td>
    </tr><tr>
        <td class="grid_item"><input type="submit" name="Link5" value="Category5" id="Link5" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 5')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;" /></td>
    </tr><tr>
        <td class="grid_item"><input type="submit" name="Link6" value="Category6" id="Link6" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 6')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;" /></td>
    </tr><tr>
        <td class="grid_item"><input type="submit" name="Link7" value="Category7" id="Link7" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 7')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;" /></td>
    </tr><tr>
        <td class="grid_item"><input type="submit" name="Link8" value="Category8" id="Link8" align="left" OnClick="JavaScript:__doPostBack('CategoryList1',' 8')" style="color:OrangeRed;background-color:White;border-style:Solid;width:224px;" /></td>
    </tr>

If you look at the LinkButton code you will see that there is a conflict between the href and onclick.

---

Steven Bey

Recursion: see Recursion

I'm having a simliar problem to this.  I've tried the solution in this, but it is not working either.

I have a LinkButton that is dynamically added through a seperate class file.  The LinkButton itself is it's own class as well.

 Here's what I have.  These and some other controls are being inputted onto the page during the Render event which is overriden in the seperate class file.

Any Suggestions?????!!!

Private Sub AddAlphabeticPagingRow(ByVal output As System.Web.UI.HtmlTextWriter)

        Dim pnlDiv As New Panel
        Dim rptData As New Repeater
       
        pnlDiv.ID = "divAlphaPaging"
        pnlDiv.RenderBeginTag(output)

        Dim i As Integer

        Dim lc As LiteralControl
     

        Dim l As BAMAlphaPagingLink
        For i = 65 To 65 + 25
            l = New BAMAlphaPagingLink
            lc = New LiteralControl
         

            lc.Text = " | "
            l.ID = "lnkAlpha" & Chr(i)
            l.Text = Chr(i)
            l.EnableViewState = True

            l.Attributes.Add("href", "Javascript:" + Page.GetPostBackEventReference(l, Chr(i)))
            ' l.Attributes.Add("onClick", "Page.GetPostBackEventReference(l, Chr(i)))

         
            l.RenderControl(output)
            lc.RenderControl(output)
           

           
        Next

       
        pnlDiv.RenderEndTag(output)

    End Sub


'''''Heres the class for the LinkButton'''
Public Class BAMAlphaPagingLink
    Inherits System.Web.UI.WebControls.LinkButton
    'Implements System.Web.UI.IPostBackEventHandler

    Public Sub New()
        MyBase.New()

    End Sub

#Region " Propterties "


#End Region

    Public Event PagingLinkClicked As EventHandler
    Public Sub RaisePostBackEvent()
        'Implements IPostBackEventHandler.raisepostbackevent
        OnPagingLinkClicked(New EventArgs)

    End Sub

    Protected Overridable Sub OnPagingLinkClicked(ByVal e As EventArgs)
        If (PagingLinkClickedEvent Is Nothing) Then
            RaiseEvent PagingLinkClicked(Me, e)
        End If
    End Sub




End Class

 

To add the click event to an object, try this syntax:

Label lb = new Label();

lb.ID = "myNewLabel";

lb.Click += new System.EventHandler(this.UpdateItem_Click);

 

 Hope that helps!