Wednesday, July 28, 2010

Page load twice

I know you may have already frustrated of this issue. Even I was really fed up when I came a cross this weird issue. I was facing this issue when I test my web application with Firefox 3.6.6, I did not check with any previous versions (and I found no issues with IE and some other browsers). Believe me it takes a lot of time to cure this. There are many possibilities but mine was a bad CSS practice, you may be wondering how CSS reloads the whole web page.
This was the issue in my CSS code background-image:url(''), having a empty image URL.
I thought reloading the page twice an issue with my coding on page behind, but ultimately it was a CSS issue.

Let me tel me why an empty URL gives such a major issue. Once the page loads the firefox still tries to find the empty URLs so page loads twice but IE just replaces the empty URL with null value.

As I mentioned above this may not the exact cause for your problem but one of the following might cause your issue. Please visit the following URL (http://www.110mb.com/forum/how-to-stop-firefox-dual-pageloads-t27704.0.html) to see more possibilities. Hope this guides you to find the issue.
Monday, July 19, 2010

must be placed inside a form tag with runat=server

I got to explain the scenario I cameacross this issue, as this might vary for some other scenarios. I got this error when I try to override the PreRender event of the masterpage's
Content Holder (idea was to get the html of that area what evel loding in to that).


ContentPlaceHolder cph = (ContentPlaceHolder)Master.Controls[0].FindControl("master_content_holder");
var sb = new StringBuilder();
var sw = new StringWriter(sb);
var htmlTxtWr = new HtmlTextWriter(sw);
SmtpUtil smtpUtil = new SmtpUtil();
cph.RenderControl(htmlTxtWr);

I got this error exactly on the last line of code. As error message states our all controlls must be inside a form tag with runat = server (note you can't have form tags on child pages, do not try it, it won't work). I did a small dirty work as to fix this issue.
I just overrided the VerifyRenderingInServerForm mehtod on child page. For me it worked properly, as i didn't have any verification to be done on my page. Be carefull before use.
Thursday, July 15, 2010

Drop emails in a folder


Instead sending an email we can configure the web.config to drop the mail in a local folder.
This is a good feature when it come to testing email on your application while developing.

Just add the following on the web.config

   1:     <system.net>
   2:       <mailSettings>
   3:         <smtp deliveryMethod="SpecifiedPickupDirectory">
   4:        <specifiedPickupDirectory pickupDirectoryLocation="C:\testmails\"/>
   5:         </smtp>            
   6:       </mailSettings>       
   7:      </system.net>


 
Following code will drop an email in your folder

   1: var smtpClient = new SmtpClient();
   2: var message = new MailMessage("from@from.com", "to@to.com");
   3: message.Subject = "This is the mail subject";            
   4: message.Body = "this is the mailm body";
   5: smtpClient.Send(message);         
 
 
Double click on the file in your C:\testmails\ folder it will open up on outlook
as an email.
 

Thursday, July 08, 2010

Take asp.net web site offline App_Offline.htm

Do not need to do any setting on ISS, instead just move in an HTMl file named
App_Offline.htm . This will stop responding to any web request but as the response
this file passes until you remove it from the root or rename it.

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