But I’m pretty sure that i had the project targeted to .net Framework 3.5 SP1, but still it was  requiring .net 4.0.  as usual i did a Google search and found this article with the trick to resolve it.

actually it was the dependencies in the setup project causing the issue, it was still targetting 4.0 even though my application targets .net 3.5 and by default VS2010 set the dependency to .Net 4.0.

if you have this issue all you have to do is the following :

1. Double click on the dependencies of the setup project.
2. Click on the .Net Framework
3. And you will see the Property window will get enabled.
4. Change the Version property to your desired .net Framework ( in my case 3.5).
5. and build your setup again.

That’s it .

for the original article that gave me this solution visit here.

Just thought i would share this information which that might be helpful for those developers who are in migration process to VS2010 . hope it help guys!!.

Thanks,

Aneef

1. ClickOnce Application,Expired Certificates & Public Key Token PART I
2. ClickOnce Application,Expired Certificates & Public Key Token PART II

During my work on this ClickOnce update, we decided to upgrade the application to target .net framework 3.5 sp1.

so I just set the target framework to 3.5 and set the required prerequisites (.net 3.5 SP1, and Windows Installer 3.1). and built the project and published it. and when I tried on a client machine which had .net framework 2.0, application got updated, prompted the uninstall message, and tried to launch the new ClickOnce application from the new URL, and BANG!. we get an error :

The Error Message Says :

Unable to install or run the application. The application

requires that assembly WindowsBase Version 3.0.0.0 be

installed in the Global Assembly Cache (GAC) first.

Why is this ?, its because when we try to launch the new application URL we do this :

DeploymentUtils.AutoInstall("<Path toNewApplication.application>");

we request for the application manifest. and it fails to launch the application because it doesn’t have the prerequisites. and now to force the new prerequisites the application should call the setup.exe in the Web Server instead of the manifest. now the question is, what if the user already have  the .net Framework 3.5 SP1?, we don’t have to prompt the client to install them again by launching setup.exe, we just have to launch the manifest. To Serve both the above scenario we need to check if the client machine has .net framework 3.5 SP1, and depending on its availability we need to launch the manifest or the setup.exe. The existence of .net Framework can be obtained from the following registry location: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP you can find out all the .net Frameworks installed and their service pack versions in this registry entry. Following are the locations of the main Net Frameworks:

Now we can check if the required .net Framework is available in the client machine, and launch the application setup.exe or the manifest. to do this we need to programmatically check these registries. for this I used the attached code ( I Couldn’t find the original author, Credits goes to him/her) which I found from web and modified to avoid few bugs. you can add this code to your project and do the below check in your application to decide which file to be launched :

string FileToLaunch=@"/setup.exe";
if (FrameworkUtils.IsInstalled(FrameworkVersion.Fx35)

 && FrameworkUtils.GetServicePackLevel(FrameworkVersion.Fx35) == 1)
          {
            FileToLaunch = @"/<application manifest.application>";
          }
            MessageBox.Show("Your message here");
            string updateURL = DeploymentUtils.getUpdateURL();
            DeploymentUtils.UninstallMe();
            DeploymentUtils.AutoInstall("https://" + updateURL + FileToLaunch);
            Application.Exit();

And that’s all, now the application will launch the setup.exe if the client doesn’t have the .net Framework 3.5 and prompt for its installation, or launch the application manifest if client has the framework installed.

Now you can solve your ClickOnce issue as well as upgrade .net Framework in client machine at the same time without problem.

Download FrameworkUtils.cs

recently I did such an implementation. its using the javascript bookflip. a great work by Will (very kind of him to share this to the world). I used the his code, and ListView to achieve a dynamic bookflip.  apart from the javascript changes,  here is the change I did for the Listview markup.

 <asp:ListView id="ImageFlip" runat="server" ItemPlaceholderID="ItemContainer">
   <LayoutTemplate>
      <div id="myBook" style="width: <%# flipWidth*2 %>px; height:

 <%# flipHeight %>px; position: relative; z-index: 5;">
        <asp:PlaceHolder ID="ItemContainer"  runat="server" />
        <div style="border: 0px solid #ddd;
    text-align: center;
    padding-top: 100px;
    margin: 0px;
    height: 0px;
    text-align:inherit;
    background-color: #ffffff;
 color: #cf0000;vertical-align:bottom" Name="Back" > 

<img src="spongebob300/bk.jpg"  border="0" usemap="#Map" />
</div>

      </div >
   </LayoutTemplate>
   <ItemTemplate>

   <div style="background:#ffffff ;color:#ffffff;

 cursor:url(ajax/zoom-in.cur),auto; z-index:-<%#Eval("PAGENO") %>;" 

name="Page <%#Eval("PAGENO") %>" >
    <a href="Javascript:getFullImage(<%#Eval("ID") %>)" >

<img src="<%#Eval("FlipImage") %>" alt="Page <%#Eval("PAGENO") %>" 

  border="0" style="cursor:url(ajax/zoom-in.cur),auto;" /></a>
    </div>
   </ItemTemplate>
   </asp:ListView>

And the Data Retrieval is just as simple as the following 3 lines:

DataTable dt = db.getFlipPage(catid);

ImageFlip.DataSource = dt;

ImageFlip.DataBind();

And that’s all. very easy isn’t it. for the real implementation of this go to www.catalogues4u.com.au and click on a catalogue.In that site I have also implemented a carousel using Listview.  hope it helps.

Lets get back to business, its been a long time since my last post, as usual busy schedules (i know, i know i tell this often !), but all these days i had several bits and pieces on queue for my blog, and here i am with that.

Last week i had an early morning call from Administrators of  Catalogues4u.com.au. they said that the website is running very slow, and users are having connection timeouts in their browsers or poor performance, server logs are filled with SQLConnection Timeout. they have been receiving calls, complaints from their top management, and most of all server restarts. horrible isn’t it?  they have checked the server, and the CPU was running almost 100%, and the culprit which used the most of the CPU was SQL Server.

After spending time in logs, and SQL profiler runs, i found that one stored procedure was taking more time to execute than the others.

here is a part of that SP:

SELECT  DISTINCT c.ENDDATE,c.ID, c.NAME,c.THUMBNAILURL,c.CONTENSDESCRIPTION
INTO #temp
FROM GW_CATELOGUE c
 INNER JOIN dbo.GW_CATELOGUE_POSTCODES cp
  ON c.ID=cp.CATELOGUEID
 INNER JOIN dbo.GW_POSTCODES p ON p.Id=cp.POSTCODEID
WHERE  p.POSTCODE=@postcode
 AND (ENDDATE BETWEEN getDate() AND DATEADD(dd, 7, getDate()))
 AND (STARTDATE <= getDate())
 AND (ENDDATE >= getDate())
 AND c.APPROVED=1 ORDER BY c.ENDDATE

There were some other SP’s with same structure except the  below Date Filtering which were running perfectly alright:

AND (ENDDATE BETWEEN getDate() AND DATEADD(dd, 7, getDate()))

AND (STARTDATE <= getDate()) AND (ENDDATE >= getDate())

Well This made me thing something is fishy with the date. with confused mind, and help of MVP Dinesh Priyangara I Created 4 Non- Clustered Indexes on Catalogue_STARTDATE, Catalogue_ENDDATE and POSTCODE:

CREATE INDEX Catalogue_STARTDATE ON GW_CATELOGUE(STARTDATE)
CREATE INDEX Catalogue_ENDDATE ON GW_CATELOGUE(ENDDATE)
CREATE INDEX PostCodes_POSTCODE ON GW_POSTCODES(POSTCODE)

And Bang!! it worked. server  was back to normal, and everyone was happy. well this might not be a big deal, but still as somebody said, information is wealth!!.