iframe从C＃中的代码隐藏自动调整高度

Question

My html page is

<iframe runat="server" id="iframe1" width="100%" height="100%" scrolling="no"  frameborder="0"></iframe>

.cs content in my pageload event

iframe1.Attributes["src"] = "http://default.com/";
//iframe1.Attributes["height"] = "100%";
//iframe1.Attributes["width"] = "100%";
iframe1.Attributes.Add("style","width:100%;height:100%;");

But its not working

i want to display whole page content but my height of iframe is not taking the height of http://default.com/

Answer 1

I don't know how to autoresize iframe on .cs page but It's another option like put your iframe in datalist control like...

<asp:DataList ID="dtlhtml" runat="server" Width="100%">
    <ItemTemplate>
        <table cellpadding="0" cellspacing="0" width="100%">
            <tr>
                <td>
                    <iframe src='<%#Eval("html") %>' width="713" id="iframe1" 
                        frameborder="0" onLoad="autoResize 'iframe1');">
                    </iframe>
                </td>
            </tr>
        </table>
    </ItemTemplate>
</asp:DataList>

Put javascript code as...

<script language="JavaScript">
function autoResize(id) 
{
    var newheight;
    var newwidth;
    if (document.getElementById(id))
    {
        newheight = document.getElementById(id).contentWindow.document.body.scrollHeight;
        newwidth = document.getElementById(id).contentWindow.document.body.scrollWidth;
    }
    document.getElementById(id).height = (newheight) + "px";
    document.getElementById(id).width = (newwidth) + "px";
}
</script>

And put on .cs page.

DataTable dt1 = new DataTable();
dt1.Columns.Add("html");
DataRow dr = dt1.NewRow();
dr["html"] = "";//Any dynamic url path
dt1.Rows.Add(dr);
dtlhtml.DataSource = dt1;
dtlhtml.DataBind();

NOTE: This will not work in local host ..please try it on online.

Answer 2

I assume you don't want 'scrolling', so why not disable it?

<iframe src="/default.asp" width="100%" height="100%" scrolling="no"></iframe>

or try

iframe1.Attributes.Add("scrolling","no");

Edit: Try

PlaceHolder1.Controls.Add(new LiteralControl("<iframe src='mypage.aspx' width='100%' height='100%' scrolling='no'></iframe>"));

or

iframe1.Attributes["src"] = "http://www.asp.net";

Answer 3

Since you are using runat="server" so you can access the attributes like height and width from code behind. Try

Updated Answer

iFrame1.Attributes.Add("height","100%");
iFrame1.Attributes.Add("width","100%");
set scrolling ="no" inside tag as suggested by Paul