Hi Peter,
I agree with Munna that using pure client-side script to do the message
displaying task is preferred(if the messages can be statically determined
after page render ) and postback or AJAX is unnecessary. here is very
simple page to demonstrate the javascript approach:
# I used a statically defined javascript array, for your scenario, you can
also use Page.ClientScript.RegisterXXX method to emit such a client script
variable in codebehind(such as from some database records...):
===============================
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
<script type="text/javascript">
var messages = new
Array("message1","message2","message3","message4", "message5");
function display_message(index)
{
alert(messages[index]);
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtMessage" runat="server"></asp:TextBox>
<br />
<asp:Button ID="Button1" runat="server" Text="Button1"
OnClientClick="display_message(0);" />
<asp:Button ID="Button2" runat="server" Text="Button2"
OnClientClick="display_message(1);" />
<asp:Button ID="Button3" runat="server" Text="Button3"
OnClientClick="display_message(2);" />
<asp:Button ID="Button4" runat="server" Text="Button4"
OnClientClick="display_message(3);" />
<asp:Button ID="Button5" runat="server" Text="Button5"
OnClientClick="display_message(4);" />
</div>
</form>
</body>
</html>
================================
Hope this helps.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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==================================================
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--------------------
>From: "Peter" <cz****@nospam.nospam>
Subject: How to develop
Date: Wed, 30 Jul 2008 00:55:16 -0500
>
I have a general question of how to do this?
I have a webpage with 5 buttons and a 1 text box. The idea is if I click
on
>any of the buttons a text should appear in the text box related to the
button.
My question is what is the best way to program this?
I tried to use AJAX and update panel, but it's too slow, when I click on
the
>button it takes 1 or 2 seconds to display the text, long enough for user
to
>wonder what's going on and click on the button again or click on something
else.
Should I use hidden field for each button (with JavaScript) and move the
text from the hidden field in to the Text box when user clicks on a button?
Should I use 5 hidden text boxes and show / hide them when user clicks on
a
>button?
Which one is the most efficient?
Should I use ASP.NET buttons or HTML buttons or something else?
Or is there a better way to do this?
Thank You
Peter
