Hi rmisiak,
Please try the following code:
It works fine for me, if it is not you mean, please create a page can reproduce this issue and send it to me.
<%@ Page Language="C#" %>
<%@ Register Namespace="CuteEditor" Assembly="CuteEditor" TagPrefix="CE" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Button1_Click(object sender, EventArgs e)
{
Label1.Text = Editor2.Text;
}
</script>
<html xmlns="
http://www.w3.org/1999/xhtml">
<head runat="server">
<title>test</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<CE:Editor ID="Editor1" runat="server">
</CE:Editor>
<CE:Editor ID="Editor2" runat="server">
</CE:Editor>
</ContentTemplate>
</asp:UpdatePanel>
<p>Change text of editor2 and click this button</p>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="ClickMe" />
<br />
<asp:Label ID="Label1" runat="server"></asp:Label>
</div>
</form>
</body>
</html>
Regards,
Ken