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Dynamically created RadButton not posting back

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ChuckRock
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ChuckRock asked on 14 Nov 2013, 06:06 PM
I am dynamically creating radbuttons on a webpage, but cannot get them to post back to the server. 

Any ideas would be greatly appreciated!

Here is the code, this is within a loop creating the items:
aComboBox(aTextBoxCount) = New TextBox
aComboBox(aTextBoxCount).TextMode = TextBoxMode.MultiLine
aComboBox(aTextBoxCount).ReadOnly = True
aEditButton(aTextBoxCount) = New RadButton
aEditButton(aTextBoxCount).Text = "Edit"
aEditButton(aTextBoxCount).ID = aTextBoxCount
aEditButton(aTextBoxCount).AutoPostBack = True
AddHandler aEditButton(aTextBoxCount).Click, AddressOf EditText
 
 
aComboBox(aTextBoxCount).ID = "aComboBox" & aTextBoxCount
aComboBox(aTextBoxCount).Width = TextBoxWidth
aComboBox(aTextBoxCount).DataBind()
aComboBox(aTextBoxCount).Text = ""
 
RadMultiPage1.PageViews(cCheckBoxTab).Controls.Add(New LiteralControl("<table><tr><td style=""width: 45px""></td><td>"))
RadMultiPage1.PageViews(cCheckBoxTab).Controls.Add(aComboBox(aTextBoxCount))
RadMultiPage1.PageViews(cCheckBoxTab).Controls.Add(New LiteralControl("</td><td>"))
RadMultiPage1.PageViews(cCheckBoxTab).Controls.Add(aEditButton(aTextBoxCount))
RadMultiPage1.PageViews(cCheckBoxTab).Controls.Add(New LiteralControl("</td></tr></table>"))

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Shinu
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answered on 15 Nov 2013, 04:38 AM
Hi ChuckRock,

Please have a look into the following code snippet to create a RadButton dynamically and post back the RadButton to the server side.

ASPX:
<telerik:RadTabStrip ID="RadTabStrip1" runat="server" MultiPageID="RadMultiPage1">
    <Tabs>
        <telerik:RadTab Text="Tab1" runat="server" PageViewID="RadPageView1">
        </telerik:RadTab>
    </Tabs>
</telerik:RadTabStrip>
<telerik:RadMultiPage ID="RadMultiPage1" runat="server">
    <telerik:RadPageView ID="RadPageView1" runat="server">
    </telerik:RadPageView>
</telerik:RadMultiPage>

VB:
Protected Sub Page_Load(sender As Object, e As EventArgs)
    'creating a radbutton
    Dim Button As New RadButton()
    Button.ID = "RadButton1"
    Button.Text = "Click"
    AddHandler Button.Click, AddressOf Me.Button_Click
    RadMultiPage1.FindPageViewByID("RadPageView1").Controls.Add(Button)
End Sub
Private Sub Button_Click(sender As Object, e As EventArgs)
    'click event of the dynamically created radbutton
    Throw New NotImplementedException()
End Sub

Thanks,
Shinu
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ChuckRock
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answered on 15 Nov 2013, 04:38 PM
Shinu,

Thanks for the example.  I was able to get that to work by itself; but was not able to get it to work on the page I need it.  Apparently something else was interfering with it. 

After troubleshooting a bit longer, I found that it was the RadAjaxManager that was the culprit.

Thanks again for your help, it lead me in the right direction.

-Chuck Bryan

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ChuckRock
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answered on 15 Nov 2013, 06:46 PM
Sinhu,

Unfortunately, I have not completely gotten this problem fixed.  I have stripped down the page in question as much as I can.  Below you will see the aspx and aspx.vb portions.

The sticking point seems to be that I have two RadCombo Boxes on the page.  If I remove them, then the dynamically created buttons behave as they should.  If the combo boxes are left on the page; then the created button does not post back!

Any help you can provide would be greatly appreciated!

EditTest.aspx
<%@ Page Title="" Language="VB" MasterPageFile="~/MasterPMSI.master" AutoEventWireup="false" CodeFile="!EditTest.aspx.vb" Inherits="Main" ValidateRequest="false" %>
<%@ MasterType VirtualPath="~/MasterPMSI.master" %>
 
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="ContentPlaceHolder2" runat="Server">
    <table id="footerTable">      
        <tr>
            <td class="cc">
                <center>
                    <span class="style2">Edit</span>
                    <br/>
                    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
                        <AjaxSettings>
                            <telerik:AjaxSetting AjaxControlID="cReassessIn">
                                <UpdatedControls>
                                    <telerik:AjaxUpdatedControl ControlID="RadMultiPage1"/>
                                </UpdatedControls>
                            </telerik:AjaxSetting>
                            <telerik:AjaxSetting AjaxControlID="Timer1">
                                <UpdatedControls>
                                    <telerik:AjaxUpdatedControl ControlID="lRefresh" />
                                </UpdatedControls>
                            </telerik:AjaxSetting>
                        </AjaxSettings>
                    </telerik:RadAjaxManager>
                    <asp:Label ID="TopHeader" runat="server" Font-Italic="True" Width="100%"></asp:Label>
                    <br/>
                    <asp:Panel ID="Panel1" runat="server" BorderStyle="Ridge" BorderWidth="3px" Width="95%" HorizontalAlign="Left" DefaultButton="bReturn">
                        <table width="100%">
                            <tr>
                                <td  style="text-align: left">
                                    <telerik:RadButton  ID="bReturn" runat="server" Text="Return" Width="180px" Font-Size="16px"></telerik:RadButton>
                                </td>
                            </tr>
                            <tr>
                                <td style="text-align: center">
                                    <asp:Label ID="lStatus" runat="server" Width="100%" Font-Bold="True"></asp:Label>
                                </td>                   
                            </tr>
                        </table>
 
                        <telerik:radtabstrip id="RadTabStrip1" runat="server" width="100%" Skin="Outlook" AutoPostBack="True">
                            <Tabs>
                                <telerik:RadTab ID="Tab1" runat="server" Text="1" Visible="False"></telerik:RadTab>
                                <telerik:RadTab ID="Tab2" runat="server" Text="2" Visible="False"></telerik:RadTab>
                            </Tabs>
                        </telerik:radtabstrip>
                        <hr/>
                        <telerik:RadMultiPage ID="RadMultiPage1" runat="server" Width="100%" SelectedIndex="0">
                            <telerik:RadPageView ID="PageView1" runat="server"></telerik:RadPageView>
                            <telerik:RadPageView ID="PageView2" runat="server" Width="100%"></telerik:RadPageView>
                        </telerik:RadMultiPage>
                        <br/>
                        <table width="100%">
                            <tr>
                                <td valign="top">
                                This                                                                                               
                                    <telerik:RadComboBox  ID="cAssessmentFinal" runat="server" Width="410px">
                                            <Items>
                                                <telerik:RadComboBoxItem runat="server" Text="Exceeds" Value="0" />
                                                <telerik:RadComboBoxItem runat="server" Text="Meets" Value="1" />
                                        </Items>                                       
                                    </telerik:RadComboBox>
                                </td>
                                <td>
                                    Date
                                    <telerik:RadComboBox ID="cReassessIn" runat="server" Width="225px" AutoPostBack="True">
                                        <Items>
                                                <telerik:RadComboBoxItem runat="server" Text="Not Needed" Value="1" />
                                                <telerik:RadComboBoxItem runat="server" Text="in 2-4 weeks" Value="2" />  
                                        </Items>                                       
                                    </telerik:RadComboBox>
                                </td>
                            </tr>
                        </table>
                    </asp:Panel>
                <asp:Panel ID="Panel2" runat="server">
                        <asp:Timer ID="Timer1" runat="server" Interval="120000" OnTick="Timer1_Tick"/>
                        <telerik:RadWindowManager ID="RadWindowManager1" runat="server">
                        </telerik:RadWindowManager>
                    </asp:Panel>
                </center>
            </td>
        </tr>
    </table>   
</asp:Content>

EditTest.aspx.vb
Imports Microsoft.VisualBasic
Imports System
Imports System.Web
Imports System.Web.UI
Imports System.Text
Imports System.Web.Configuration
Imports Telerik.Web.UI
Imports MySql.Data.MySqlClient
 
Partial Class Main
    Inherits System.Web.UI.Page
 
    Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load
        PutButtons()
    End Sub
 
    Private Sub PutButtons()
        Dim button As New RadButton
        button.Text = "Test Edit"
        button.ID = "EButtonTest"
        AddHandler button.Click, AddressOf Me.EditText
        RadMultiPage1.PageViews(0).Controls.Add(button)
    End Sub
 
    Private Sub EditText(ByVal sender As Object, ByVal e As System.EventArgs)
        Dim buttonId As String
        buttonId = DirectCast(sender, RadButton).ID
        lStatus.Text += " BC= " + buttonId
    End Sub
 
    Protected Sub Timer1_Tick(sender As Object, e As System.EventArgs) Handles Timer1.Tick
        Dim fu As Boolean
        ' Do timer stuff here
    End Sub
 
End Class

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Shinu
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answered on 21 Nov 2013, 10:07 AM
Hi ChuckRock,

The dynamically created RadButton postback is not happening because the RadButton is added inside the "RadMultiPage1", which is ajaxified. If you want to ajaxify the controls inside the "RadMultiPage1" then Please try to specify each controls inside the "RadMultiPage1" separately. Otherwise all the controls inside the "RadMultiPage1" will be ajaxified.

Thanks,
Shinu.
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ChuckRock
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Shinu
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ChuckRock
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