[CLOSED] Web Service Render ASCX

[PoloTheMonk]

Hi,
i'd like to generate an ascx in a webmethod.
In fact, in the webmethod "renderTo",

1 - I created the new Page()
2 - I added the HtmlForm to the page
3 - I added the Ext.Net.ResourceManager to the HtmlForm
4 - then I tried to load rm.ascx, I did the databind and
5 - I did the "page.RenderControl(wr)" (point where i encoutered the error)

I correctly did all of these passages with the 1.0.0.15317 ext.net version

but with the 1.0.4414.20616 and 1.0.4485.18804 versions I'm facing this problems

what could I do to solve my problem?

thank you


RM.ASCX:

<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="RM.ascx.vb" Inherits="GoogleExtMaps.RM" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<ext:Button runat="server" ID="bttn" Text="---"></ext:Button>

RM.ASCX.VB:

Public Class RM
    Inherits UserControl
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
    End Sub
    Public Overrides Sub DataBind()
        bttn.Text = "TEST VALUE"
    End Sub
End Class

WEB SERVICE:

<WebMethod(True)> _
    <System.Web.Script.Services.ScriptMethod(ResponseFormat:=System.Web.Script.Services.ResponseFormat.Json, UseHttpGet:=False)> _
    Function renderTo(Userid As String, Lingua As String) As ExtResult
        Dim res As New ExtResult
        Dim Controllo As New UserControl
        Try
            Controllo = Controllo.LoadControl("rm.ascx")
            Controllo.DataBind()
           
            Dim page As Page = New Page()
            Dim Sw As New System.IO.StringWriter
            Dim RMExtNet As New Ext.Net.ResourceManager
            Controllo.EnableViewState = False
            page.EnableViewState = False
            page.EnableEventValidation = False
            Dim form As New HtmlForm
            form.ID = "ExtNetFormContainer"
            form.Controls.Add(RMExtNet)
            form.Controls.Add(Controllo)
            page.Controls.Add(form)

            Dim wr As New System.Web.UI.HtmlTextWriter(Sw)

            page.RenderControl(wr) '<- ERROR ############################
        Catch ex As Exception
            res.Errore = "Errore: " & ex.Message
        End Try
        
        Return res

    End Function

[Daniil]

Hi,

Please investigate how we render a user control in WebService in the following example.
https://examples1.ext.net/#/Calendar...w/Remote_Data/

We would suggest to use that way.

[PoloTheMonk]

Hi,

Please investigate how we render a user control in WebService in the following example.
https://examples1.ext.net/#/Calendar...w/Remote_Data/

We would suggest to use that way.

thank you Daniil for your reply, but what I want to do is trying to solve what I did in my code,
because it is at the base of my project and without any solution I can't go away..
As I told you before this post, with 1.0.0.15317 ext.net version I was able to use page.RenderControl(wr) but with the new version I can't.
where is the difference between the old version and the new versions?

thank you very much

[Vladimir]

Hi,

Just your approach is incorrect, you have to use XRender functionality (ToScript or Render methods of Ext.Net widget)
If your code works in 1.0.xxx then it doesn't mean that it will work in other versions because you use doesn't recommended rendering

Possible reasons why your code doesn't work:
- Controls doesn't rendering own script if X.IsAjaxRequest==true (this rule is ignored if controls are rendered in ToScript/Render methods)
- Need to use SelfRenderingPage for dynamic rednering instead Page

So, please investigate the example which Daniil mentioned

[PoloTheMonk]

Hi,

Just your approach is incorrect, you have to use XRender functionality (ToScript or Render methods of Ext.Net widget)
If your code works in 1.0.xxx then it doesn't mean that it will work in other versions because you use doesn't recommended rendering

Possible reasons why your code doesn't work:
- Controls doesn't rendering own script if X.IsAjaxRequest==true (this rule is ignored if controls are rendered in ToScript/Render methods)
- Need to use SelfRenderingPage for dynamic rednering instead Page

So, please investigate the example which Daniil mentioned

thank you Vlad,
SelfRenderingPage helped me