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@Calgary

有那么麻烦么？

canadiantire(轮胎-扎了三个钉子！)
<html>
<head>
<script language="JavaScript">
<!--

var i = 0;
var j = 0;
var urls1 = new Array();
urls1[0] = "http://www.cnn.com";
urls1[1] = "http://www.yahoo.com";
var urls2 = new Array();
urls2[0] = "http://www.slashdot.org";
urls2[1] = "http://www.sina.com.cn";

function doSwitch(use_list) {

var o = document.getElementById("dyn");

if(o != null) {
if(use_list == 1)
o.src = urls1[i++%2];
else
o.src = urls2[j++%2];
o.refresh();
}
}
//-->
</script>
</head>
<body>
<input type="button" value="press me 1!" onClick="javascript: return doSwitch(1);">
<input type="button" value="press me 2!" onClick="javascript: return doSwitch(2);">
<iframe id="dyn" src="url"></iframe>
</body>
</html>
(#2086395@0)
Last Updated: 2005-1-21
This post has been archived. It cannot be replied.
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Replies, comments and Discussions:

  • 工作学习 / IT技术讨论 / ASP.net高手请进 -jeff2ll(jeff); 2005-1-19 {282} (#2083832@0)
    我想在网页里放一个固定的窗口，这个窗口不做别的，只用来显示其它的网页用，比如放新浪或者网易．但在窗口里放的网页需要是动态的，我需要按一个键窗口里显示新浪，按另外一个键窗口里显示网易，也就是说我要用程序来设置此窗口的URL．请教各位高手，在asp.net里是否提供这样的控件来实现此功能？多谢！
    • IFRAME, FRAME -canadiantire(轮胎-扎了三个钉子！); 2005-1-19 (#2083852@0)
      • 多谢！不过iframe是client端的，不知asp.net是否提供server端的控件？这样实现起来会方便许多（因为url的生成逻辑比较复杂） -jeff2ll(jeff); 2005-1-19 (#2083869@0)
        • 你那几个键作成提交form不就行啦? target都在那个frame里面... -expertune(伪劣); 2005-1-19 (#2083881@0)
          • 也是，就是麻烦些．本来还想偷偷懒．．．． -jeff2ll(jeff); 2005-1-19 (#2083886@0)
        • set iframe's runat="server" -feihong(feihong); 2005-1-21 (#2086362@0)
    • Option 1: web user control; Option 2: Reload page with dynamically configured request string each time you want change. (The first option seems to be easier. ) -orange0(桔子); 2005-1-20 (#2084147@0)
      • 多谢！第一种方案比较好，不过不知道如何做这样的user control．　ASP.net的image control都能设置url,为什么.net不提供能实现此功能的control呢？ -jeff2ll(jeff); 2005-1-20 {92} (#2085061@0)
        用iframe就是用的第二种的方案，我知道能行得通，不过调了一整天都没有调出来，不知道问题出在哪．
        • 做一个空白的.ascx, 在Page_Load里面写Response.Redirect("http://XXXX"), 当然得自己生成URL, 然后把它拖进你的网页... -orange0(桔子); 2005-1-20 (#2085115@0)
          • 这个方案看起来比用下面的用ATTRIBUTE 更简单, 有没有DX 有雅兴试验一下行不行. 我现在没有VS, 就免啦. -roo(baloon); 2005-1-21 (#2086627@0)
            • 这个办法把页面分成了两个文件, 从程序的重复使用角度说是可取的, 但是对于目前这个问题, 组件里面只有一行程序, 好象用不着这样... -guest3(guest); 2005-1-21 (#2086659@0)
              • yes, using attribute is much easier. Before I just didn't know I could set those HTML elements' attributes using .NET. Because of this, in fact, we can consider HTML elements as web control too. -jeff2ll(jeff); 2005-1-21 (#2086695@0)
    • Donot get mad! you are another guy to enter into ms trap. your case can easily be handled by html, why bother so-call web control. Donot be mad!!! Good day -elecskunk(elecskunk); 2005-1-21 (#2086246@0)
      • 这个HTML除了FRAME还有其它方法吗? 楼主已经说了不想用FRAME. -roo(baloon); 2005-1-21 (#2086271@0)
        • No -elecskunk(elecskunk); 2005-1-21 (#2086280@0)
        • I do not particulary hate to use frame or iframe. It is just because they make programming much more difficult. After all, I need to get those dynamic URL generated by server and database, -jeff2ll(jeff); 2005-1-21 (#2086313@0)
          • 你这个动态URL是每次load page更新一次，还是经常更新？ -luoboyang(萝卜秧); 2005-1-21 (#2086326@0)
            • often -jeff2ll(jeff); 2005-1-21 (#2086336@0)
            • almost every button in the webpage has to change the URL dynamically -jeff2ll(jeff); 2005-1-21 (#2086340@0)
              • 等一下，我正在做个试验 -luoboyang(萝卜秧); 2005-1-21 (#2086359@0)
              • 好了，看这里： -luoboyang(萝卜秧); 2005-1-21 {576} (#2086436@0)
                .aspx

                <table width="500">
                <tr>
                <td>
                <iframe height="300" width="400" id="f1" src="" runat="server"></iframe>
                </td>
                </tr>
                </table>

                .cs
                protected System.Web.UI.WebControls.Button Button2;
                protected System.Web.UI.WebControls.Button Button1;
                protected System.Web.UI.HtmlControls.HtmlContainerControl f1;


                private void Button1_Click(object sender, System.EventArgs e)
                {
                f1.Attributes["src"]="http://www.microsoft.com";
                }

                private void Button2_Click(object sender, System.EventArgs e)
                {
                f1.Attributes["src"]="http://www.google.com";
                }
                • Great!!!!!! Thank you very much .....This is what exactly what I want. -jeff2ll(jeff); 2005-1-21 {77} (#2086448@0)
                  I have believed microsoft must have provided something to solve such question
                  • 这里关键的地方就是要把client side的control 在code behind里面定义出来，这样就可以为所欲为了，基本上。：） -luoboyang(萝卜秧); 2005-1-21 (#2086455@0)
                    • many thanks to luoboyang!!! I have implemented your solution in my program. I guess it's the easiest way that I can wish. -jeff2ll(jeff); 2005-1-21 (#2086486@0)
                      • My pleasure! 共同学习，共同提高，共同进步。：）） -luoboyang(萝卜秧); 2005-1-21 (#2086497@0)
        • but iframe or frame are only good when you already get the URL in client site. BTW, I do not think it is a trap of Microsoft. If you wanna such have website with such a function -jeff2ll(jeff); 2005-1-21 {59} (#2086324@0)
          , it won't be easy for any other programming tools either.
          • using javascript plus xmlhttp component plus layer will give you all flexibility -nice2002(+3); 2005-1-21 (#2086335@0)
            • Can you provide an example with what you have mentioned? Thanks. -jeff2ll(jeff); 2005-1-21 (#2086348@0)
              • some hint -nice2002(+3); 2005-1-21 {352} (#2086417@0)
                function getpage()
                {

                var objHTTP = new ActiveXObject("Microsoft.XMLHTTP")
                objHTTP.Open('GET',http://www.yahoo.com',false)
                objHTTP.Send()
                var txt= objHTTP.ResponseText
                ...
                }
                This will get content from site,then write the txt into layer you created, if you make url to be variable, you will get page dynamically when you click button

                ..
                • Not that easy pal, and for some dynamic content it will failed. -canadiantire(轮胎-扎了三个钉子！); 2005-1-21 (#2086437@0)
    • 有那么麻烦么？ -canadiantire(轮胎-扎了三个钉子！); 2005-1-21 {768} (#2086395@0)
      <html>
      <head>
      <script language="JavaScript">
      <!--

      var i = 0;
      var j = 0;
      var urls1 = new Array();
      urls1[0] = "http://www.cnn.com";
      urls1[1] = "http://www.yahoo.com";
      var urls2 = new Array();
      urls2[0] = "http://www.slashdot.org";
      urls2[1] = "http://www.sina.com.cn";

      function doSwitch(use_list) {

      var o = document.getElementById("dyn");

      if(o != null) {
      if(use_list == 1)
      o.src = urls1[i++%2];
      else
      o.src = urls2[j++%2];
      o.refresh();
      }
      }
      //-->
      </script>
      </head>
      <body>
      <input type="button" value="press me 1!" onClick="javascript: return doSwitch(1);">
      <input type="button" value="press me 2!" onClick="javascript: return doSwitch(2);">
      <iframe id="dyn" src="url"></iframe>
      </body>
      </html>
      • the example you gave is not a solution. It is easy because you use JavaScript and define the URLs in the program in the client site already. How do you get those URLs if they are in the database? -jeff2ll(jeff); 2005-1-21 (#2086439@0)
        • #2086436 -luoboyang(萝卜秧); 2005-1-21 (#2086443@0)
        • You can pass the value from database to javascript function. -jetsfan(新人); 2005-1-21 (#2086460@0)
        • I don't like some ASP dot Net developer, wonder why? not because they don't understamd ASP can output dynamic content, but their attitude, hehe. -canadiantire(轮胎-扎了三个钉子！); 2005-1-21 (#2086582@0)
          • well, my attitude is good. I have thanked you, right? :-) BTW, I am not a .net developer. I used to be an Oracle DBA but now I am just a student. -jeff2ll(jeff); 2005-1-21 {139} (#2086600@0)
            I like to ask questions. Your solution just doesn't seem to fit my requirement. exactly. Fortunately, finnally I got the solution I need.
      • 你的code不错，就是不是楼主的要求。全在client side了。：） -luoboyang(萝卜秧); 2005-1-21 (#2086441@0)
        • Thanks, your solution fits better. -canadiantire(轮胎-扎了三个钉子！); 2005-1-21 (#2086574@0)
      • This guy is something. let .cs output html for you, donot use web-control. While, somebody bing-de-bu-qing. -elecskunk(elecskunk); 2005-1-21 (#2086453@0)
        • well, don't be so critical. every person has his(her) own preference and opinions. You think it is impossible, right? However, luoboyang gave me the best solution I want..... -jeff2ll(jeff); 2005-1-21 (#2086468@0)
    • No way. -uniquemember(TjHong); 2005-1-21 {69} (#2087271@0)
      It's impossible to create a server side control acting as a browser.
      • 没有才要写啊. -javacup(风铃); 2005-1-22 (#2088164@0)

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