white fox
سه شنبه 19 اردیبهشت 1385, 21:04 عصر
این هم یک مثال ساده که از جاوا اسکریپت استفاده کرده و از همون Response.Flush که آقای manager نام بردند هم استفاده کرده .توضیحات در خود کد داده شده است.
The Page_Load event of the webform should have the following code:
private void Page_Load(object sender, System.EventArgs e)
{
// Write div tag to the page that will contain the text for the progress bar.
Response.Write("<div id='mydiv' >");
Response.Write("_");
Response.Write("</div>");
Response.Write("<script>mydiv.innerText = '';</script>");
// Javascript to do the work of the progress bar.
// There are three functions.
// 1. ShowWait: Sets text of the div tag to "Loading" followed by 10 periods ".........."
// 2. StartShowWait: Calls the ShowWait function every second and make the div tag visible.
// 3. HideWait: Hides the div tag when the page is done loading. It is called from a script block
// that you need to add to the HTML page as the last element.
Response.Write("<script language=javascript>;");
Response.Write("var dots = 0;var dotmax = 10;function ShowWait()");
Response.Write("{var output; output = 'Loading';dots++;if(dots>=dotmax)dots=1;");
Response.Write("for(var x = 0;x < dots;x++){output += '.';}mydiv.innerText = output;}");
Response.Write("function StartShowWait(){mydiv.style.visibility = 'visible'; window.setInterval('ShowWait()',1000);}");
Response.Write("function HideWait(){mydiv.style.visibility = 'hidden';window.clearInterval();}");
Response.Write("StartShowWait();</script>");
Response.Flush();
// This really doesn't serve any purpose, other than to help with the sample code. After 10 seconds, the page will stop loading and the progress bar will disappear.
Thread.Sleep(10000);
}
One other thing you need to do is add a script block at the bottom of your HTML page as follows:
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<!-- All you form data goes here -->
</form>
<!-- Add this script block as the last element in your document. It will hide the progress bar when the page loads -->
<script>
HideWait();
</script>
</body>
روش سخت تر هم بلدم که بگم ...loooooooooooooooooooool