ASP.NET - Using ScriptManager in class library reference

Question

I want to add a reference to ScriptManager in my class library project instead ClientScriptManager, is it possible?

Answer 1

I assume that you don't know how to reference the ScriptManager in a class library where normally these WebControls are not referenced. Furthermore i think you also need to know how to get a reference to the page in a static context from the class library.

To get the ScriptManager you have to add a reference to System.Web.Extensions in your class library project.

To get a reference to the page in a static context you need to add the System.Web namespace, then following returns the ScriptManager of the current page:

C#:

var http = System.Web.HttpContext.Current;
if ((http != null)) {
    var page = http.CurrentHandler as Web.UI.Page;
    if (page != null) {
        var scriptManager = System.Web.UI.ScriptManager.GetCurrent(page);
    }
}

VB.NET:

Dim http = Web.HttpContext.Current
If Not http Is Nothing Then
    Dim page = TryCast(http.CurrentHandler, Web.UI.Page)
    If Not page Is Nothing Then
         Dim scriptManager = System.Web.UI.ScriptManager.GetCurrent(page)
    End If
End If