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Binding Expressions in server controls

Posted By:      Posted Date: September 03, 2010    Points: 0   Category :ASP.Net
 
Hi i'm trying to do the following:<asp:LinkButton ID="lnk" runat="server" OnClientClick='func(<%# Request("ID") %>)'>click</asp:LinkButton>func is a javascript function that takes 1 argument "ID". but this gets rendered as the following:<a onclick="func(&lt;%# Request(&quot;ID&quot;) %>);" id="lnk" href="javascript:__doPostBack('lnk','')">click</a>instead of onclick="func(1)" for example.the problem is that the < is rendered as &lt; and " is rendered as &quot;Is there a way to solve this problem?thank you.


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Hi All,Some of the asp.net server controls(.NET 2.0) like DropDownList control, LinkButton etc., has postback property. When User clicks or selects these controls, a Postback will occur. Let us consider LinkButton control, which is extension of the HyperLink

All my server-controls became unrecognized!!! like there's compilation error or web.config missing!

  

hi!

please help - the problem is in post subject.

I have lots of warnings with following text:

"Warning 10 Element 'HyperLink' is not a known element. This can occur if there is a compilation error in the Web site, or the web.config file is missing. C:\Users\Pavel\Documents\Visual Studio 2010\WebSites\BioWebSite\ToScientist.aspx 26 18 C:\...\BioWebSite\" 

But web.confg is there! And there's no compilation error!

Site builds just fine. And If I upload it to my hoster - it works!

 

But with all these errors I cant add controls to pages - VS2010 adds hyperlink without ID, and intelisens stoped to work.

Strange, but in my other project (web-application) I have no such difficuty.


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Hello, I write inline expression and binding expression in the server head section:<head runat="server"> <link rel="stylesheet" type="text/css" href="<%= Request.ApplicationPath %>themes/style1.css" /> <link rel="stylesheet" type="text/css" href="<%# Request.ApplicationPath %>themes/style2.css" /> <link rel="stylesheet" type="text/css" href="<%= ResolveUrl("~") %>themes/style3.css" /> <script type="text/javascript" src="<%= Request.ApplicationPath %>js/jwork.js"></script> </head> protected void Page_Load(object sender, EventArgs e) { Page.Header.DataBind(); }  But both kinds of expression aren't parsed or executed except the  ResovleUrl menthod. The html renders like this: <head><link rel="stylesheet" type="text/css" href="&lt;%= Request.ApplicationPath  %>themes/style1.css" /><link rel="stylesheet" type="text/css" href="&lt;%# Request.ApplicationPath  %>themes/style2.css" />    <link rel="stylesheet" type="text/css" href="/themes/style3.css"  /> 

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the doubts i have may looks silly,i started my carrier in dotnet recently,1)we are calling them as client side controls,then what is the need for runat server attribute?2)<asp:Button ID="Button1" runat="server" Text="Button" /> <asp:ConfirmButtonExtender ID="Button1_ConfirmButtonExtender" runat="server"              ConfirmText="Really?" Enabled="True" TargetControlID="Button1">  </asp:ConfirmButtonExtender>when i execute the above code,i observed that in status bar message as "connecting to localhost",if they are client side controls what  is the need of going to local server,why it is happening?Thanks in advance.

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