Hello Telerik team,
I appriciate your feedback related to the RadAjaxPanel doing postback first time.I have also faced the same issue related to this even ,may be found the solution within this thread itself but i am facing a issue which is restricting me to have a radajxpael or proxy inside usercontrol.Below is the issue:-
On my page, i have usercontrol(PurchaseFor.ascx) inside which i have again one usercontrol(SelectUser.ascx) .i have PurchaseFor.ascx inside page Purchases.aspx .Inside usercontrol (PurchaseFor.ascx) i have two asp radiobuttons (i.e first is for "Purchase for me" and second is for "Purchase for someonelse") both have autopostback property true. on click of "purchase for someonelse" radio button my another usercontrol gets visible i.e (SelectUser.ascx) and on click of first radiobutton it gets hidden.I want that on this radiobutton click it should do a asyc postback rather than full postback so i have taken RadAjaxManager proxy on my usercontrol (SelectUser.ascx) as follows:-
<telerik:RadAjaxManagerProxy ID="RadAjaxManagerProxy3" runat="server">
<AjaxSettings>
<telerik:AjaxSetting AjaxControlID="pnl1">
<UpdatedControls>
<telerik:AjaxUpdatedControl ControlID="pnl1" />
</UpdatedControls>
</telerik:AjaxSetting>
</AjaxSettings>
</telerik:RadAjaxManagerProxy>
<asp:Panel ID="pnl1" runat="server" OnPreRender="pnl1_PreRender">
<table>
<tr>
<td>
<asp:RadioButton ID="rbMe" runat="server" Text="This purchase is for <strong>me</strong>."
AutoPostBack="true" GroupName="rb1" OnCheckedChanged="rb_Checked" />
</td>
</tr>
<tr>
<td>
</td>
</tr>
<tr>
<td>
<asp:RadioButton ID="rbSomeoneElse" runat="server" Text="This purchase is for <strong>someone else</strong>."
CausesValidation="false" AutoPostBack="true" GroupName="rb1" OnCheckedChanged="rb_Checked" />
<asp:LinkButton ID="cmdChange" runat="server" Text="Change" OnClick="cmdChange_Click"
CssClass="colorTextLink" Visible="false" />
</td>
<td align="left">
<div style="height: 20px; position: relative" id="divtest" runat="server">
<uc2:SelectUser ID="selUser" runat="server" EnabledAddNew="false" Type="Users"
Width="290px" Required="true" OnPreRender="selUser_OnPreRender" />
</div>
</td>
</tr>
</table>
<asp:LinkButton ID="lnk" runat="server" OnClick="lnk_Click"></asp:LinkButton>
<asp:HiddenField ID="hdn" runat="server" />
</asp:Panel>
When i am putting the panel "pnl1" inside RadAjaxPanel its working fine i mean its updation the usercontrol "SelectUser" on click of radio button but its causing a postback first time issue later i trie with using RadAjaxManagerProxy when i had used proxy its throwing an exception please refer to the attach screen shot as (Error1.gif) .It gives an javascript error that .
"EditModeStyleCtl001_ContentPlaceHolder1_ctl01_selUser_mxl.." is undefined"
In my SelectUser.ascx i have one RadTextBox and div as well as we have uead a RadXmlHttpPanel which uses a webservice to bind RadGrid inside div.and when we start typing on textbox it populated grid with the results matching with the text enterd .I aslo tried to update RadXmlHttpPanel in proxy but stll no success.Please help us on this issue.
Thanks telerik team.