I am using Ajaxmodalpopup extender and when show() method is called inside server side code, nothing happens. Below is the code. The reason I have to use dummy button is that I have to call server side code with TargetControlID and if I use "Add Test" which is the one I desire, the server side code is not called. SO, Once I create dummy button and assign it as TargetControlID, I can call server side code and then use popupAddExtender.Show() to show the popup. Issue is that the pop up is not displayed for some reason. I have tried various options provided at Stack Overflow, but none seems working. Appreciate any help. AjaxControltoolkit version is 15.1.2.0 and .NET Framework is 4.0.0.
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajax" %>
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<div>
<asp:Button ID="AddTest" Text="Add Test" runat="server" OnClick="AddTest_Click" />
</div>
<ajax:ModalPopupExtender ID="popupAddExtender" runat="server" TargetControlID="btndummypopup" PopupControlID="pnlAddTest"></ajax:ModalPopupExtender>
<asp:Panel ID="pnlAddTest" runat="server" style="display:none">
<div>
<asp:Label ID="lblTest" runat="server" >Test</asp:Label></div>
<div><asp:Label ID="lblpopupTestName" runat="server"></asp:Label>
<asp:DropDownList ID="ddlTest" runat="server"></asp:DropDownList>
</div>
<div><asp:Label ID="lblMeasurement" runat="server">Measurement Date</asp:Label>
<telerik:RadCalendar RenderMode="Lightweight" ID="radtkMeasurementDate" Width="100%" EnableMultiSelect="false" EnableKeyboardNavigation="true"
ShowColumnHeaders="true" ShowDayCellToolTips="true" SelectedDate="08/10/2015" ShowRowHeaders="true" runat="server"
>
</telerik:RadCalendar>
</div>
<div><asp:Label ID="lblpopupResult" runat="server"> Result</asp:Label>
<asp:TextBox ID="lblpopupresultvalue" runat="server"></asp:TextBox>
</div>
<div><asp:Button ID="btnSave" runat="server" Text="Save"/>
<asp:Button ID="btnCancel" runat="server" Text="Cancel" />
</div>
</asp:Panel>
<div><asp:Button ID="btndummypopup" runat="server" style="display:none" /></div>
Server side code:
protected void AddTest_Click(object sender, EventArgs e) {
popupAddExtender.Show();
ddlTest.DataSource=GetTestName();;
ddlTest.DataValueField = "LabID";
ddlTest.DataTextField="Name";
ddlTest.DataBind();
}
