Count() of Navigation Property in EF

Hello

I am using EF 4.

I need to set a navigation property. I could do something like this:

using (MyDataContext context = new MyDataContext())
{
    context.Affaires.Attach(affaire);
    affaire.QualityID = 2;

    context.SaveChanges();
}

The problem is that I want to do this in the code behind and I don't have any DataContext.

The logic for using a POCO would be just doing this:

affaire.QualityID = 2;

or:

affaire.Quality = quality;

And later let the Bll load a context, attach the poco and save the changes. But I get an error message:

"The ObjectContext instance has been disposed and can no longer be used for operations that require a connection"

Is there any way for doing this scenario?

Thanks

 Hi, i have little knowledge on javascript but i need to use this code get from somewhere for a jquery to work.

I face this "Jscript runtime error: Object does not support property or method" whenever im trying to run this page.

In my experience, im get this error msg 9 out of 10 times i use javascript in my system.

Im using Microsoft Visual web developer 2008, i wonder if this is related to my problem, i not sure there is anything i need to add as reference or update anything.

But anyway, in short, i just couldn't use javascript code when using this development tool because of this sort of error.

Anyway, it happen that last time i tried use the same type of jquery code in another project and it seems to work well without an error.

But now when im try to use it again in this recent project i created, it come out with this error and i have no idea how to solve it even look through google and this forum.

It doesn't really seems like its the code problem itself although im not sure, because any javascript code just couldn't work.

So below is my code that i need to use.

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js" ></script>
<script type="text/javascript" src=&quo

Hi,

I have an SP that simply performs a COUNT(*) from a table. I'm am trying to print that number in an ASP Label. It works in Query analyzer but I cant wrap my head around how to display it in a label. Any guidance much appreciated. 

Thank you. 

I'm creating my first server control, and have it working where I can set up an enum and the user can set a property's choices,  based off of that enum.  But I'd like it to pull records from a database and populate the list of choices for the property from a database.  This would allow me to add a new "Host System" to the database, and the other designers wouldn't have to get a new copy of the dll.

Thanks,

Russ

I have created a server control consisting of a TextArea and a div under it.  My goal is to create my own asp:TextArea type control.  the div is for a Character count of the text area and seems to work ok but i added a CharacterCountVisible property to the control that is always returning true.  See Proptery definition below

<Bindable(False), Category("Appearance"), DefaultValue("True"), Localizable(True)> Property CharacterCountVisible() As Boolean
    Get
        Return _CountBoxVisible
    End Get
    Set(ByVal value As Boolean)
        _CountBoxVisible = value
    End Set
End Property

Note the _CountBoxVisible variable is define inside the class as :

Dim _CountBoxVisible as Boolean = True

What I am trying to do is give the user/coder the option to show/utilize the char count feature.  Can make it disappear with textarea1.CharacterCountVisible = False but setting it to true will not make it display.

What am i missing

Thanks

Hi,

I have a User Control (ascx) and a property which a want to display in my categories tab in Visual Studio in the category named "Styles".

[Category("Styles"), DefaultValue(""), Description("The value for formating something.")]
public String MyFormatProperty
{
  set { /* the code for set */; }
  get { /* the code for get */; }
}

And here is the problem: Actually I do not need a get, because I only have to set the property (write only property). But when I omit the get, the property is displayed in the "Misc" category in the categories tab in Visual Studio. Only when I code the get as well, then the property is displayed correctly in the "Styles" category in the categories tab in Visual Studio.

Does anybody know why? How can I display the category correctly only with set?

Thanks, S.

Hello!

I have 163 .resx files. I want to count the words in these files, because my want to translate the sentences (my task is the localisation).

Now I'm opening each file in Ms Visual Studio and I count words manually. How can I count words in all files? And the second question: can I use a program what grab strings from .resx into an editor where I can translate them and save bacn into .resx files? Or must open the files one by one and edit the text fields manually?

Thanks for helping, unfortunately I'm not a programmer.

this is my aspx and cs code , let me know whether it is correct or not??

onload and performance on navigation of record show be good.

Plz help me

<CR:CrystalReportViewer ID="CrystalReportViewer1" runat="server" AutoDataBind="True"

                DisplayGroupTree="False" ReuseParameterValuesOnRefresh="true" HasToggleGroupTreeButton="False" Height="1039px" ReportSourceID="CrystalReportSource1"

                Width="901px" />

            <CR:CrystalReportSource ID="CrystalReportSource1" runat="

Sorry for a basic post here; I am very new to VB!

I am currently building a search page, which includes a textbox and two drop-down lists, a search button, and a datagrid. If results are found and displayed, I would like a label to display:

(e.g.) "24 results found for 'blue sky clouds' "

...where the integer represents the results count, and the keywords and/or drop-down list selections are included in the string.

If no results are found I would like the label to display:

(e.g.) "No results were found that match your selection. Please try again"

I would also like the label to be invisible until a search occurs.

Thanks in advance!

Good navigation makes for happy users, and happy users are good for your business. See what makes users happy this month.

Dr. Charles B. Kreitzberg and Ambrose Little

MSDN Magazine March 2009

In my childhood I spent several weeks a year in Holland with my extended family. As a young American boy I was fascinated with the electric Dutch trains, something we didn't see in my hometown of Dallas, Texas.

Rob Howard

MSDN Magazine October 2005

Edited by Nancy Michell

MSDN Magazine September 2005