How to access page control (editor control) from user control?


I want to do something, but I don't know if it's even possible.

I'm trying to make a simple application to edit my website.

I have a page called editPage.aspx which contains an editor control. (cuteEditor from cutesoft)

I also have a Treeview that dynamically populates my website structure. I placed this treeview in a custom control (populateTreeView.ascx) and placed it on the editPage.aspx page.

When you click on a html file in the treeview (inside the custom control) I check if the file exists. If it does exists I send it to a class which retrieves the editable region within this html file.
I made regions like <!-- edit start --> and <!-- edit end -->
I pick out the text between these regions.

I want to pass this text to the editor, but I don't know how.
This is because the text is returned to my custom control page. (populateTreeView.ascx.vb)

How can I send the retrieved text to my editor control? My custom control page doesn't see the editor control.

The custom control is more like a frame within my editPage.aspx page.

Any ideas how to pass the object?

Of course I can place the treeview and its code directly on the editPage.aspx page, but I would rather be able to reuse the custom control for other parts of the website and do the same trick.

Here is my some of my code to illustrate:


<form id="form1" runat="server">
        <td valign="top" width="250">
            <uc1:populateTreeview ID="PopulateTreeview1" runat="server" />    <!-- my user control -->
        <td valign="top">
            <div align="center">
                <CE:Editor ID="Editor1" runat="server" AutoConfigure="Full_noform" Height="500px" AllowPasteHtml="false" EditCompleteDocument="false" FilesPath="~/editor/Cutesoft_client/CuteEditor">
                    <FrameStyle BackColor="White" BorderColor="#DDDDDD" BorderStyle="Solid" BorderWidth="1px"
                        CssClass="CuteEditorFrame" Height="100%" Width="100%" />
                <br /><br />


1    Protected Sub MyTree_SelectedNodeChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyTree.SelectedNodeChanged
2       Dim editPage As FileInfo = New FileInfo(Server.MapPath(MyTree.SelectedValue))
3       If editPage.Exists Then
4           Dim retrieveContent As loadHtml = New loadHtml(editPage.FullName)
5           Dim editableContent As String = retrieveContent.getHtml()
6           'now I have to pass the editContent to my editor somehow....
7       End If
8    End Sub

2/15/2007 11:50:27 AM 91979 articles. 4 followers. Follow

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This is the way that I'd do it.

Have you custom treeview control raise a custom event (where you've got the 'now I have to pass ... comment in the code)

Define the eventargs class for this event as

Public Class ContentChangedEventArgs
  Inherits EventArgs

  Public ReadOnly Content As String

  Friend Sub New( cont as String )
    Content = cont
  End Sub
End Class

Define the event as

Public Event ContentChanged As EventHandler(Of ContentChangedEventArgs )

Handle this event in your page, read the content from the ContentChangedEventArgs Content property and then set the content in the cute editor.

Now you can reuse the control on as many pages as you want.


2/15/2007 12:24:11 PM


 Thanks for your suggestion to help me on my way.

At first I had no idea what you where talking about (I'm still a novice) because I don't have much experience with custom events.
But your idea looked promising so I decided to "look into" the subject.

Finally, thanks with this site:, I was able to solve my problem by create a custom event for my custom control.

Here is my code that solved it:

Within my populateTreeView.ascx.vb page:

 Partial Class populateTreeview
    Inherits System.Web.UI.UserControl

   'Class within my Partial Class   
   Public Class EditContentArgs
        Inherits EventArgs

        Public editableContent As String
    End Class

    Protected WithEvents treeView As System.Web.UI.WebControls.TreeView
    Public Event editContentRetrieved(ByVal sender As Object, ByVal e As EditContentArgs)

'Some other code to populate treeview

    Protected Sub MyTree_SelectedNodeChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyTree.SelectedNodeChanged
        Dim editPage As FileInfo = New FileInfo(Server.MapPath(MyTree.SelectedValue))
        If editPage.Exists Then
            Dim retrieveContent As loadHtml = New loadHtml(editPage.FullName)
            Dim editableContent As String = retrieveContent.getHtml()
            'now I have to pass the editContent to my editor somehow....
            'Solved by passed my variable through a custom event
            Dim eca As EditContentArgs = New EditContentArgs()
            eca.editableContent = editableContent
            RaiseEvent editContentRetrieved(sender, eca)
        End If
    End Sub

End Class

 On my editPage.aspx.vb page:

    Protected Sub PopulateTreeview1_editContentRetrieved(ByVal sender As Object, ByVal e As populateTreeview.EditContentArgs) Handles PopulateTreeview1.editContentRetrieved
        Editor1.Text = e.editableContent
    End Sub

2/15/2007 2:33:11 PM

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