【多选题】
You create an ASP.NET page that contains the following tag.  <h1 id="hdr1" runat="server">Page Name  You need to write code that will change the contents of the tag dynamically when the page is loaded. What are two possible ways to achieve this goal？（）
A、this.hdr1.InnerHtml = "Text"；
B、（hdr1.Parent as HtmlGenericControl）.InnerText = "Text"；
C、HtmlGenericControl h1 = this.FindControl（"hdr1"） as HtmlGenericControl；h1.InnerText = "Text"；
D、HtmlGenericControl h1 = Parent.FindControl（"hdr1"） as HtmlGenericControl；h1.InnerText = "Text"；
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