Hello,

I try to modify  the text of a TextBox or Label in ModalPopuExtender :

 <cc1:ModalPopupExtender ID="mpe" runat="server" TargetControlID="btHIDE" PopupControlID="panelRecap"
        OkControlID="btOK" DropShadow="true" />
<asp:Panel  ID= "panel" runat="server"  Style="display: table-header-group">
       <asp:Label  ID="label" runat="server" Text="Summary :" />
       <asp:TextBox ID="tb" runat="server" TextMode="MultiLine"/>
       <asp:Button ID="btClose" runat="server" Text="Close" />      
</asp:Panel>  

tb.Text="Thank you for your choice : (......)";
mpe.Show();

 mpe.Show() works, the panel is visible like I want but I don't have my text. In debug mode, I can see the propertie is correctly assigned. Is it due of page's construction ?

Thanks for your help

 Hello,

 First please include an Update Panel in your current Panel.

<asp:Panel  ID= "panel" runat="server"  Style="display: table-header-group">
  <asp:UpdatePanel ID="upPanel" runat="server" UpdateMode="conditional">
      <ContentTemplate>
        <asp:Label  ID="label" runat="server" Text="Summary :" />
        <asp:TextBox ID="tb" runat="server" TextMode="MultiLine"/>
        <asp:Button ID="btClose" runat="server" Text="Close" />  
     </ContentTemplate>
   </asp:UpdatePanel>
</asp:Panel> 

 And then use

upPanel.Update()

it should work :)

 Hello,

 Tank you very much ! It works ! 

Unfortunately for me, if I use your idea, my button who close the popup doesn't work : 

 
<cc1:ModalPopupExtender ID="mpe" runat="server" TargetControlID="btHIDE" PopupControlID="panel"
        OkControlID="btOK" BackgroundCssClass="modalBackground" DropShadow="true" />
 

Hi again,

 I'm glad the first solution works great. Actually, I'm not sure about your Ok button. What it's doing ? is it binded to a javascript function on client side ? or do you have an OnClick event on it ?

Give me more information about this button plz ! 

In fact, my button worked only with the following parameters :

<cc1:ModalPopupExtender ID="mpe" runat="server" TargetControlID="btHIDE" PopupControlID="panel"
        OkControlID="btOK" BackgroundCssClass="modalBackground" DropShadow="true" />

Yeah actually it's managed by the Modal Popup Extender when you bind your closing button to OkControlID or CancelControlID.

 In fact, I've just to add a method Onclick with : mpe.Hide(); and the UpdatePanel is closed 

Thanks for all !