[OPEN] [#818] X.AddScript() called in ODS methods fails

[ambruslaco]

Hello,
if I call X.AddScript() (and also X.Call() ) in ODS methods (OnSelecting, OnSelected), while ODS Select is invoked by Ext.Net.Store, nothing happens. If ODS Select is invoked by my code (e.g. in Page_Load), it works well.

namespace Test
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            Ext.Net.X.AddScript("alert('load');");
            //this.ods.Select(); // try use this while removing store
        }
        protected void Unnamed_Selected(object sender, ObjectDataSourceStatusEventArgs e)
        {
            Ext.Net.X.AddScript("alert('selected');");
        }
        protected void Unnamed_Selecting(object sender, ObjectDataSourceSelectingEventArgs e)
        {
            Ext.Net.X.AddScript("alert('selecting');");
        }
        public object Select()
        {
            return new { Text = "Text" };
        }
    }
}

<ext:ResourceManager ID="resourceManager" runat="server" ShowWarningOnAjaxFailure="false" />
<asp:ObjectDataSource ID="ods" runat="server" TypeName="Test.WebForm1" SelectMethod="Select" OnSelected="Unnamed_Selected" OnSelecting="Unnamed_Selecting" />
<ext:Store runat="server" DataSourceID="ods">
            <Model>
                <ext:Model runat="server">
                    <Fields>
                        <ext:ModelField Name="Text" />
                    </Fields>
                </ext:Model>
            </Model>
        </ext:Store>

Thanks for help!

Ladislav

[Daniil]

Hi @ambruslaco,

Thank you for the report! Created an Issue:
https://github.com/extnet/Ext.NET/issues/818

Auto data binding is triggered too late for .AddScript() to be working in those events.

Please use this workaround:

protected void Page_Load(object sender, EventArgs e)
{
    Ext.Net.X.AddScript("alert('load');");
    this.Store1.DataBind();
}

[ambruslaco]

Thanks for reply.

How can I determine in code, if its too late for .AddStript() so I should execute some other steps? I use it in general exception handler.

[Daniil]

The scripts added by .AddScript() are handled in a ResourceManager's Render method. So, if a ResourceManager is rendered, .AddScript() actually stops working.

In your scenario we recommend to use a ResourceManager's .RegisterOnReadyScript() method.

protected void Unnamed_Selected(object sender, ObjectDataSourceStatusEventArgs e)
{
    this.resourceManager.RegisterOnReadyScript("alert('selected');");
}