[CLOSED] How to avoid page load on every action/Direct event

[Vamsi]

Hi,

I have two panels, one panel contains gridpanel and other contains Iframe.

If I select the row one of the record contains a URL based on the row selection the Iframe should refresh/postback with new selected data (URL)

Every time page load when any event occurred :

How to avoid page loads for every action and our application controls are generated on the fly .

Please help me out how to avoid page load on every action (I cannot use !x.isAjaxPostback)

<ext:GridPanel ID="GridPanel1" runat="server" Title="" StoreID="Store1" SelectionMemory="false"
                            EnableViewState="true">                         
                                                               
                            <SelectionModel>
                                <ext:RowSelectionModel ID="RowSelectionModel1" runat="server">
                                    <DirectEvents>
                                        <Select OnEvent="GridPanel1_RowSelect">
                                            <ExtraParams>
                                                <ext:Parameter Name="RowValues" Value="Ext.encode(#{GridPanel1}.getRowsValues({selectedOnly:true}))"
                                                    Mode="Raw" />
                                            </ExtraParams>
                                        </Select>
                                    </DirectEvents>
                                </ext:RowSelectionModel>
                            </SelectionModel>                          
                        </ext:GridPanel>


protected void GridPanel1_RowSelect(object sender, DirectEventArgs e)
        {
            if (isrowEditable == false)
            {
                string RecData = string.Empty;
                string valList = string.Empty;
                string rowValues = e.ExtraParams["RowValues"]; //extra params

                Dictionary<string, string>[] gridRows = JSON.Deserialize<Dictionary<string, string>[]>(rowValues);

                string strName = "";
                foreach (Dictionary<string, string> row in gridRows)
                {
                    string insertedTxt = "";
                    foreach (KeyValuePair<string, string> kvp in row)
                    {
                        RecData =  kvp.Key  
                        valList =  kvp.Value ;

                    }
                }

             if (ExtTestCustomEvent != null)
                        ExtTestCustomEvent(this, ceArgs); --->Bubbled event calling mainpage
            }

        }

Please find mainpage code ..

HtmlGenericControl ViewerIFrame = null;
protected void Page_Load(object sender, EventArgs e)
        {

addUserControl();
 ViewerIFrame = new HtmlGenericControl("iframe");
                                ViewerIFrame.ID = fieldList[i].Name;
 ViewerIFrame.Attributes["height"] = Convert.ToString((fieldList[i].Height) * Constants.scaleY);
                                ViewerIFrame.Attributes["frameBorder"] = "0";
                                ViewerIFrame.Attributes["scrolling"] = "no";

Placeholder2.Controls.Add(ViewerIFrame);
}



void uc2_ExtTestCustomEvent(object sender, CommandEventArgs e)
        {
            string args = "";// e.CommandName;
            string eArg = "";
            if (e.CommandArgument == null || (string)e.CommandArgument.ToString().Trim() == "")
                eArg = "CommandClick";
            else
                eArg = e.CommandArgument.ToString();

            OTEventArgs eArgs = new OTEventArgs(eArg, args);
            eArgs.Items = e.CommandName;
            eArgs.Sender = sender;
            ProcessEvent(sender, eArgs);
        }



 private void ProcessEvent(object sender, OTEventArgs e)
        {

Ext.Net.X.Js.Set("ViewerIFrame.Attributes["src"] ", "WebOTViewer\\Viewer.aspx?Path=" + Server.UrlEncode(Convert.ToString(eArgs)) + "&FrameGroup=" + FrameGroup + "&height=" + FrameHeight + "&width=" + FrameWidth + "&isPercentage=" + IsPercentWidth);

   
}


Adding user control to mainpage:

private void addUserControl(
{

OTExtGridview uc2 = (OTExtGridview)Page.LoadControl("~/UserControls/OTExtGridView.ascx");
                                    uc2.ExtTestCustomEvent += new OTExtGridview.ClickEventHandler(uc2_ExtTestCustomEvent);
AsyncPostBackTrigger trg1 = new AsyncPostBackTrigger();
                                        trg1.ControlID = uc2.ID;
                                        trg1.EventName = "ExtTestCustomEvent";
                                        UpdatePanel1.Triggers.Add(trg1);
}

Thanks,
Vamsi.

[Daniil]

Hi @Vamsi,

Do you mean when a DirectEvent occurs, the page's Page_Load is being executed? If so, there is no way to avoid it. It is a regular ASP.NET page life cycle.

The only approach is to avoid executing of the Page_Load code by using if (!X.IsAjaxRequest) which you say you cannot use. Could you, please, clarify why you cannot use it?

Also please clarify why do you need to avoid Page_Load?