Cannot get a reference to TextBox from NumericUpDownExtender when inside another element

Question

User1909155429 posted

  


<fieldset style="float:left;text-align:left;width:230px;">

<asp:TextBox ID="TxtNectarPoints" runat="server"  ></asp:TextBox>
                                    
      <ajaxToolkit:NumericUpDownExtender ID="NumericUpDownExtender1" runat="server" Maximum="100" Minimum="0"  Step="5" 
TargetControlID="TxtNectarPoints" Width="50" >
      </ajaxToolkit:NumericUpDownExtender>

</fieldset>

I can get it to work once I take it out of the FieldSet element for example. In practice it is placed inside a ModalPopupExtender control.

This example is to verify whether it was inoperable inside other  Html elements besides a Ajax control.

 

 

Answer 1

User61956409 posted

Hi peterthegreat,

I can get it to work once I take it out of the FieldSet element for example. In practice it is placed inside a ModalPopupExtender control.

I create the following sample to reproduce your problem, NumericUpDownExtender works fine in modal popup.

<asp:Button ID="Button1" runat="server" Text="ShowModalPopup" />
<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server" TargetControlID="Button1" PopupControlID="Panel1"></asp:ModalPopupExtender>

<asp:Panel ID="Panel1" runat="server">
    <asp:TextBox ID="TxtNectarPoints" runat="server"></asp:TextBox>
    <asp:NumericUpDownExtender ID="NumericUpDownExtender1" runat="server" Maximum="100" Minimum="0" Step="5"
        TargetControlID="TxtNectarPoints" Width="50">
    </asp:NumericUpDownExtender>
</asp:Panel>

Best Regards,

Fei Han

Answer 2

User1909155429 posted

I discovered that the problem occurs when I set the Panel size the modal opens ?

 

Answer 3

User1777983149 posted

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>