Having problems getting window.opener.reload() to work in an ascx file.

Question

I have an ascx control file which calla an aspx page. While in the aspx page I want to force the equivalent of an f5 reload on the ascx page so it will update the data contained on the page. I have attempted to do this in javaScript using a number of suggested ways. Some of the code variations I have tried are listed below. I am using asp frame 4.5 in Microsoft Studio 2019. The following are the attempts in the aspx page to run this code:

code

    function refreshAndClose1() { //This was the first thing I tried (in orig   
                                                    //IE11 version  
        opener.location.reload();  
        window.close();  
    }  
    async function refreshAndClose() {  
        function doit() {  
            if (window.opener && !window.opener.closed) {  
                window.opener.location.reload();  
            }  
        }  
        window.close();  
        setTimeout(doit, 100);  
    }  
    function surrogateUpDateFunc() {  
        alert('We are inside the aspx function');  
        window.opener.document.Form1.getElementById('btnRefresh').click();  
        //function reloadwin() {  
        //    window.open('', '_self', '');  
        //    self.close();  
        // }  
        //setTimeout(reloadwin, 1000);  
        self.close();  
        //alert('We are about to attempt unload of opener!');  
        //window.opener.reload();  
        //window.opener.document.location.reload();  
    }  

End of Code.

None of these have worked. In the last one I put a button in the ascx page. That button when you click on it in the ascx page a refresh of the data in the ascx page is refreshed manually. When I attempt to do that programatically from the aspx page nothing happens. That is the "'btnRefresh" ID that I am attempting to click on. This code was written by someone else. He is no longer with us but I am trying to understand why this will not work. I did notice that he makes use of a form of what he calls modal mode where he is trying to emulate in Chrome what was done before in IE11. I am wondering if there in lies the problem. I have in all other parts of this program used the window.opener.reload() with no problem. Is there something peculiar to ascx pages that I am not aware of that makes this not work or perhaps there is another way to do this. The THIS that I need to do is from the child process which is an aspx page I need to force the calling program an ascx page to refresh itself.

Answer 1

Hi @Gary Globus ,
According to your description you want to achieve refresh ascx page. I think you can try the following two methods.
1.Use an AJAX UpdatePanel with a timer to automatically refresh data.

<asp:UpdatePanel runat="server" D="UpdatePanel1">  
    <ContentTemplate>  
        <asp:Timer runat="server" ID="clock" OnTick="clock_Tick" Interval="1000" Enabled="true"></asp:Timer>  
        <uc1:ProgressBar runat="server" ID="ProgressBar" />  
    </ContentTemplate>  
    <Triggers  >  
        <asp:AsyncPostBackTrigger ControlID="clock" EventName="Tick" />  
    </Triggers>  
</asp:UpdatePanel>  
protected void clock_Tick(object sender, EventArgs e)  
{  
   UpdatePanel1.Update();  
}  

2.If you're creating a user control that's being built based on data saved. What you can do is create a method that does that building and then call it within the page and user control:
UserControl:

protected Page_Load(object sender, EventArgs e)  
{  
    BuildControlBasedOnData();  
}  

public BuildControlBasedOnData()  
{  
    // Build the user control based on saved data  
}   

Calling Page:

Button_Click(object sender, EventArgs e)  
{  
    UserControl1.BuildControlBasedOnData();      
}  

Best regards,
Lan Huang

---

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Answer 2

if the opened page does a post back or navigation, opener is no longer valid (due to browser security). be sure the page only calls Ajax, no form posts.