First modification is to “Pre-generated Your View”. For this you must have .ssdl, .csdl, and .msl files – so you change the “Metadata Artifact Processing property to: Copy to Output Directory.”. Then you process the .ssdl, .csdl, and .msl with edmgen in order to can have the  views.

Until here , all ok.

But, in the next advice, is to keep “Metadata Artifact Processing property to: Embed in Output Assembly.”

One solution is to put “Metadata Artifact Processing property to: Copy to Output Directory.” , compile, put again “Metadata Artifact Processing property to: Embed in Output Assembly.” and compile again. But , if you change the edmx (add fields or tables ) you must redo the operation  – so you will have more things to do(if you remember)

A solution is to build them on the pre-build step .But how to generate the .ssdl, .csdl, and .msl files  ?

Edmgen2 , http://code.msdn.microsoft.com/EdmGen2 , to the rescue. Download, put into a lib folder under your solution folder and put a pre-build like this :

$(SolutionDir)lib\edmgen2\edmgen2 /FromEdmx $(ProjectDir)prod.edmx”

“%windir%\Microsoft.NET\Framework\v4.0.30319\EdmGen.exe” /mode:ViewGeneration /language:CSharp /nologo “/inssdl:prod.ssdl” “/incsdl:prod.csdl”   “/inmsl:prod.msl” “/outviews:$(ProjectDir)prod.Views.cs”

What you must change on your project?

1. IF you are on 64 bit, change Framework to Framework64

2. change the prod with your edmx name.

What is the performance?

Tested by loading a table with 301 rows by doing the steps :

1. open connection, load all table in objects(POCO), closing connection

2. open connection , find object with PK = 1, closing connection

3. open connection ,  loading 1 tables with 2 related (include ) , closing connection

The results are in milliseconds:

Without pre-compiled views

With pre-compiled views:

The average / min / max results:

In the next picture the smaller the duration(milliseconds), is the better :

Conclusions:

1.  For the average and min the difference is 7%, respectively 20%. Please remember we are using only 3 queries.

For the max, it is vey curious : the with is more than without. The penalty is 1%, I think that is a measuring error ? – or maybe not. However , the penalty is small comparing with others.

2. Very curious, find after ID, with a table with 301 rows, took longer than loading the whole table.However, did not take into accound finding in the list the object( it is in memory also)

3. It may worth to add the pre-build step shown before to pre-compile views.

Links :

http://www.codeproject.com/KB/database/PerfEntityFramework.aspx

http://msdn.microsoft.com/en-us/library/bb896240.aspx

(From here – you can use ResolveUrl or Url.Content – it’s the same for me. I use ResolveUrl because I used first …)

Case 1 The image does not display

Please check you have the following :

<img src='<%= ResolveUrl("~/Content/images/YOURIMAGE.jpg" )%>'  alt="image" style="border:0" />

Case 2 The css does not show

Please check you have the following :

<%= string.Format("<link href='{0}' type='text/css' rel='stylesheet' />", ResolveUrl("~/Content/your.css")) %>

or

<style type="text/css">
@import '<%= ResolveUrl("~/Content/your.css") %>';

</style>

Case 3 The js does not execute (undefined error)

Please check you have the following :

<script type="text/javascript" src='<%= ResolveUrl("~/Scripts/yourjs.js")%>'></script>

Case 4 The js does execute in aspx page, but did not execute under js file

Please check you DO NOT have the following

<%

in the js file. The js file is not interpreted by the same engine as aspx, so can not interpret asp.net tags. Instead , add a parameter to your function : the path.

Simple example : Let’s say in aspx you have :

<script type=”text/javascript”>

function Generate(){

window.open(‘<% Url.Action(“About”)%>’);
}

</script>

and you call Generate();

When you put in .js file, please put this :

function Generate(url){

window.open(url);
}

and call like this :

Generate('<% Url.Action(“About”)%>');

Case 5 The ajax request gives you a 404 error.

Please ensure that you have

<%= ResolveUrl("~/path”)%>

and not

/path

Bonus 1: T4MVC , http://mvccontrib.codeplex.com/releases

Bonus 2: Edit the project file and put <MvcBuildViews>true</MvcBuildViews>

( short url: http://bit.ly/asp5Mistakes)

Now I want to show the same thing, but generating triggers in database for that ! I start also from edmx file and with a template stealed from http://forums.asp.net/p/1599616/4083198.aspx ( to have type of fields in the database ) and another stealed and modified from StackOverflow(to generate trigger for after insert , update, delete) I manage to have a solution to generate sql tables and trigger code.

When is that good ?At the beginning stages of a project when the table structure changes by adding a new parameter.

Sample code generated for table Notes(ID, TextNote, PersonID)

print 'Create table Notes_History ';
Create Table Notes_History(
		ID_Notes_History BIGINT IDENTITY NOT NULL
		,History_Action varchar(50)
		,History_From varchar(100) default HOST_NAME()
		,History_User varchar(50) default SYSTEM_USER
		,History_Date varchar(50) default  getdate()
	   ,Id  int   NOT NULL
	   ,Textnote  nvarchar (255)  NULL
	   ,PersonId  int   NULL
	)
print 'end Create table Notes_History ';
GO
print 'create trigger for Notes'
GO
CREATE TRIGGER dbo.TR_IUP_Notes
   ON  Notes
   AFTER INSERT, UPDATE, DELETE
AS
BEGIN
    SET NOCOUNT ON;
	DECLARE @Ins int

DECLARE @Del int

SELECT @Ins = Count(*) FROM inserted

SELECT @Del = Count(*) FROM deleted
if(@Ins  + @Del = 0)
	return;

declare @operation varchar(50)
	set @operation ='update';
	if(@ins < @del)
		set @operation ='delete';
	if(@ins > @del)
		set @operation ='insert';

	if(@ins <= @del)
	begin
		INSERT INTO Notes_History(History_Action ,Id,Textnote,PersonId)
			select @operation ,Id,Textnote,PersonId from deleted
	end
    else
	begin
    INSERT INTO Notes_History(History_Action ,Id,Textnote,PersonId)
			select @operation ,Id,Textnote,PersonId from inserted
	end
END

The drawback of the code : the user that executes is not always the logged sql server user…
Anyway, what you have to do to use this automatically generated history/audit for tables ?

download historysql and modify

string inputFile = @”Model1.edmx”;

from historysql.tt to your edmx name. Then take the generated code and execute in sql server.

Those are the modification that I do every time … I wish there were enabled by default :

For VS2010

Go to=> Tools, Options , Html, Formatting ,Check “ Insert attribute value quotes when typing”

This saves me a lot of time , when I put : input type=”text” , the “  are inserted automatically.

For SSMS

Go to=> Tools, Options , Designers , uncheck “Prevent saving changes that require table re-creation”

As a developer, I do modify tables … and this wont let me the first time …

For Excel, Word

Alt+F11 (Visual Basic Editor), Tools, Options, Editor Tab, uncheck “Auto syntax check”, check “require variable declaration”

“require variable declaration”  :This saves you a lot of time debugging or writing “Option Explicit” .

“Auto syntax check “ : I do not want a message box each time I do an error. The error is seen in red … no need for a Msgbox.

How about you, dear reader ? Do you have programs that require after installation modifying of options ?

1. Not display dropdownlist if the Select list is null

   public static MvcHtmlString DropDownListNull(this HtmlHelper html, string Name, SelectList select, object htmlAttributes)
   {
   
   if (select == null)
   return MvcHtmlString.Empty;
   else
    return html.DropDownList(Name, select, htmlAttributes);
   
   }
   

2. Transform Enum to SelectList

   #region enum to list
           private static List<KeyValuePair<long, string>> FromEnum(this Type e)
           {
               List<KeyValuePair<long, string>> kvp = new List<KeyValuePair<long, string>>();
               foreach (var s in Enum.GetValues(e))
               {
                   kvp.Add(new KeyValuePair<long, string>((int)s, s.ToString()));
               }
               return kvp;
           }
           public static SelectList ToSelectList(this Type enumObj)
           {
   
               return new SelectList(enumObj.FromEnum(), "Key", "Value");
   
           }
           #endregion
   

3. Transform Generic list into a SelectList

                 #region Generic List to SelectItem
           public static SelectList SelectFromList<TItem>(this List<TItem> values,
               Expression<Func<TItem, string>> key, Expression<Func<TItem, string>> value)
           {
               var Key = key.Compile();
               var Value = value.Compile();
               List<KeyValuePair<string, string>> kvp = new List<KeyValuePair<string, string>>(values.Count);
               values.ForEach(item =>
                   kvp.Add(new KeyValuePair<string, string>(Key.Invoke(item), Value.Invoke(item))));
   
               return new SelectList(kvp, "Key", "Value");
   
           }
           #endregion
   

4. Display pager control

   #region paged list control
           //after http://geekswithblogs.net/nuri/archive/2009/08/05/mvc-paged-list.aspx
           /// <summary>
           /// Shows a pager control - Creates a list of links that jump to each page
           /// </summary>
           /// <param name="page">The ViewPage instance this method executes on.</param>
           /// <param name="pagedList">A PagedList instance containing the data for the paged control</param>
           /// <param name="controllerName">Name of the controller.</param>
           /// <param name="actionName">Name of the action on the controller.</param>
           public static void ShowPagerControl(this ViewPage page, BasePagedListImplementation pagedList, string formatUrl)
           {
               HtmlTextWriter writer = new HtmlTextWriter(page.Response.Output);
               if (writer != null)
               {
                   for (int pageNum = 1; pageNum <= pagedList.PageCount; pageNum++)
                   {
                       bool samepage=(pageNum == pagedList.PageNumber);
                       if (!samepage)
                       {
                           writer.AddAttribute(HtmlTextWriterAttribute.Href,string.Format(formatUrl, pageNum));
                           writer.AddAttribute(HtmlTextWriterAttribute.Alt, "Page " + pageNum);
                           writer.RenderBeginTag(HtmlTextWriterTag.A);
                       }
   
                       writer.AddAttribute(HtmlTextWriterAttribute.Class,
                                           pageNum == pagedList.PageNumber ?
                                                               "pageLinkCurrent" :
                                                               "pageLink");
   
                       writer.RenderBeginTag(HtmlTextWriterTag.Span);
                       writer.Write(pageNum);
                       writer.RenderEndTag();
   
                       if (!samepage)
                       {
                           writer.RenderEndTag();
                       }
                       writer.Write("&nbsp;");
                   }
   
                   writer.Write("(");
                   writer.Write(pagedList.TotalItemCount);
                   writer.Write(" items in all)");
               }
           }
   
           #endregion
   

Other extensions available that are good :

1. http://blog.wekeroad.com/blog/asp-net-mvc-list-helper-extension-method/
2. http://www.hanselman.com/blog/ASPNETMVCSessionAtMix08TDDAndMvcMockHelpers.aspx
3. http://helios.ca/2009/09/21/asp-net-mvc-extension-methods-of-urlhelper/
4. http://blog.donnfelker.com/2010/02/25/asp-net-mvc-tempdata-extension-methods/
5. http://inq.me/post/ASPNet-MVC-Extension-method-to-create-a-Security-Aware-HtmlActionLink.aspx

If you know more, please tell me

Step 1 : Make a Web site with Visual Studio

Step 2 : In IIS Manager create the new site

Step 3: edit the hosts file (administrative rights)

Step 4: Create the Web application, modify his Project=>properties=>Web =>Use local IIS Web Server

Step 5: Edit bindings for new site to point to the folder of application

Step 6: Run Visual Studio

You can download the project from

Also you can look to the video :

Very Short:

1. Make a constructor on the form that has a parameter of the type you want to send.
2. Do not forget the call to this( in order to execute InitializeComponent).
3. Always verify on Load event that the copy of parameter is initialized.