Automatically launch a popup window specified in JavaScript

Question

Automatically launch a popup window specified in JavaScript

Aim:- I am trying to automatically open a radwindow from the server-side based on a specific IF condition.

Snippet Used:-

In the aspx page, I have defined the radwindow as follows:

<telerik:RadWindowManager Skin="WBDA" ID="AssetPreviewManager" Modal="true" 
EnableEmbeddedSkins="false" runat="server"  DestroyOnClose="true" Behavior="Close" 
style="z-index:8000">
    <Windows>   
        <telerik:RadWindow ID="DisclaimerAlertWindow" runat="server" Width="720px" Height="220px" 
Modal="true" visibleStatusbar="false" VisibleTitlebar="false" keepInScreenBounds="true" title="Sourav">                                            
      </telerik:RadWindow>  
   </Windows>  
</telerik:RadWindowManager>

In the JavaScript section, there is a function defined to open the radwindow:

function openRadWindow() 
     { 
        var oWnd = radopen('DisclaimerAlert.aspx', 'DisclaimerAlertWindow'); 
        oWnd.set_title('Access Denied !');  
        oWnd.Center(); 
        return false; 
     }

Therefore, in the Page Load event on the server side of the aspx page, I check an IF condition and then call the 'openRadWindow()' function like this:

protected void Page_Load(object sender, EventArgs e)
{
if (fieldValue == "False") 
{ 
 string xyz = "<script type='text/javascript' lang='Javascript'>openRadWindow();</script>"; 
 ClientScript.RegisterStartupScript(this.GetType(), "Window", xyz); 
}
}

Issue:-

However, when running this code, I encounter the following JavaScript errors:

Object doesn't support this property or method.
'undefined' is null or not an object.

I would appreciate any assistance on how to achieve my goal as I am currently stuck.

javascript asp.net radwindow

Answer 1

Answer №1

Greetings! Allow me to present to you my approach in creating a RadWindow dialog using solely Javascript code.

Our solution involves the development of two key methods: one for initializing the RadWindow dialog and another for retrieving the arguments passed back after the RadWindow is closed. The possibilities for actions in the second method are endless (e.g., postback).

Here is the code implementation:

Initializing the RadWindow dialog:

function createRadWindowDialog(url, args) {
    var windowManager = GetRadWindowManager();
    if (windowManager) {
        var radWindow = windowManager.open(url, "<your_dialog_name>");
        if (radWindow) {
            radWindow.set_initialBehaviors(Telerik.Web.UI.WindowBehaviors.None);
            radWindow.set_behaviors(Telerik.Web.UI.WindowBehaviors.Move + Telerik.Web.UI.WindowBehaviors.Close + Telerik.Web.UI.WindowBehaviors.Resize);
            radWindow.setActive(true);
            radWindow.SetModal(true);
            radWindow.center();
            radWindow.set_visibleStatusbar(false);
            radWindow.set_keepInScreenBounds(true);
            radWindow.set_minWidth(640);
            radWindow.set_minHeight(480);
            radWindow.setSize(640, 480);
            radWindow.set_destroyOnClose(true);
            radWindow.add_close(handleRadWindowClose);
            radWindow.argument = args;
        }
    }
}

Closing the RadWindow dialog:

function handleRadWindowClose(sender, args) {
    var returnedArgs = args.get_argument();
    // 'returnedArgs' stores the values passed back from the RadWindow
    // You can utilize these values for further actions
}

How to execute this?

You may integrate the open method into your desired function. In my case, I possess a method as illustrated below and I will invoke the RadWindow as follows:

function DisplayForeignKeyFrontEditSingle(param1, param2){
    var url = "ForeignKeyFrontEditSingle.aspx";
    var args = new Array();
    args[0] = param1;
    args[1] = param2;

    createRadWindowDialog(url, args);
    return;
}

Remember to define a RadWindowManager control in your setup

function GetRadWindowManager() {
    return $find("<%=your_radwindow_manager_control.ClientID%>");
}

Answer 2

Greetings! Allow me to present to you my approach in creating a RadWindow dialog using solely Javascript code.

Our solution involves the development of two key methods: one for initializing the RadWindow dialog and another for retrieving the arguments passed back after the RadWindow is closed. The possibilities for actions in the second method are endless (e.g., postback).

Here is the code implementation:

Initializing the RadWindow dialog:

function createRadWindowDialog(url, args) {
    var windowManager = GetRadWindowManager();
    if (windowManager) {
        var radWindow = windowManager.open(url, "<your_dialog_name>");
        if (radWindow) {
            radWindow.set_initialBehaviors(Telerik.Web.UI.WindowBehaviors.None);
            radWindow.set_behaviors(Telerik.Web.UI.WindowBehaviors.Move + Telerik.Web.UI.WindowBehaviors.Close + Telerik.Web.UI.WindowBehaviors.Resize);
            radWindow.setActive(true);
            radWindow.SetModal(true);
            radWindow.center();
            radWindow.set_visibleStatusbar(false);
            radWindow.set_keepInScreenBounds(true);
            radWindow.set_minWidth(640);
            radWindow.set_minHeight(480);
            radWindow.setSize(640, 480);
            radWindow.set_destroyOnClose(true);
            radWindow.add_close(handleRadWindowClose);
            radWindow.argument = args;
        }
    }
}

Closing the RadWindow dialog:

function handleRadWindowClose(sender, args) {
    var returnedArgs = args.get_argument();
    // 'returnedArgs' stores the values passed back from the RadWindow
    // You can utilize these values for further actions
}

How to execute this?

You may integrate the open method into your desired function. In my case, I possess a method as illustrated below and I will invoke the RadWindow as follows:

function DisplayForeignKeyFrontEditSingle(param1, param2){
    var url = "ForeignKeyFrontEditSingle.aspx";
    var args = new Array();
    args[0] = param1;
    args[1] = param2;

    createRadWindowDialog(url, args);
    return;
}

Remember to define a RadWindowManager control in your setup

function GetRadWindowManager() {
    return $find("<%=your_radwindow_manager_control.ClientID%>");
}

Answer 3

Answer №2

If you're wondering about how to utilize the ScriptManager.RegisterStartupScript function, check out this helpful guide: http://www.example.com/how-to-use-scriptmanager-registerstartupscript. Remember to take note of using the ScriptManager's functionality and consider the Sys.Application.Load event to ensure your code doesn't run prematurely.

Answer 4

If you're wondering about how to utilize the ScriptManager.RegisterStartupScript function, check out this helpful guide: http://www.example.com/how-to-use-scriptmanager-registerstartupscript. Remember to take note of using the ScriptManager's functionality and consider the Sys.Application.Load event to ensure your code doesn't run prematurely.

Automatically launch a popup window specified in JavaScript

Answer №1

Answer №2

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