Transferring the control's identifier to JavaScript using ScriptControlDescriptor

In my CreateChildControls() method, I am creating a control:

HtmlGenericControl mycontrol= HtmlGenericControl("li");
mycontrol.ID = "controlID";

controlId = mycontrol.ID;


protected virtual IEnumerable<ScriptDescriptor> GetScriptDescriptors()
{
        ScriptControlDescriptor descriptor = new ScriptControlDescriptor("Project.TEditor", this.ClientID);                   

        descriptor.AddProperty("controlId", controlId);           
        return new ScriptDescriptor[] { descriptor };          
}

After that, when I try to access this control in JavaScript using the ID property:

 alert($get(this.get_controlId()));

I am getting null because the actual control ID has a prefix added by ASP.

Is there a way to solve this issue?

asp.netjavascriptajax

Answer №1

Consider using mycontrol.ClientID rather than mycontrol.ID when referencing on the client side:

// Within CreateChildControls method:
HtmlGenericControl mycontrol = new HtmlGenericControl("li");
mycontrol.ID = "controlID";

// After adding the control to the page (Page.Controls.Add(myControl)):
controlId = mycontrol.ClientID;

protected virtual IEnumerable<ScriptDescriptor> GetScriptDescriptors()
{
        ScriptControlDescriptor descriptor = new ScriptControlDescriptor("Project.TEditor", this.ClientID);
        
        descriptor.AddProperty("controlId", controlId);
        return new ScriptDescriptor[] { descriptor };
}

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