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  • I can't see any trace output in ASP.NET

    - by asksuperuser
    In Visual Studio 2010 I added Trace to Page_Load as explained here http://www.asp101.com/articles/robert/tracing/default.asp but I can't see any Trace output, why ? public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { Trace.IsEnabled = true; Trace.Write("Hello World"); } }

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  • Transparent control over WM Player ActiveX component in .NET

    - by FatDaemon
    I have a Windows media player activex component in my Form. On top of this WM player i have a picturebox with background color set to transparent. When i set an image for this picturebox , thought the image contains transparent areas it is displayed as black when the picturebox is above the WM player component. Where as if i place the PictureBox somewhere else in the form. The transparent area are rendered properly. So is there anyway that i can place a transparent image on top of a WM Player component. (hmm something like watermark may be). I want this picture to be displayed with may be 50% opacity when the video is playing in WM player control. Will GDI+ be of any use in this case?

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  • Persisting user control values afer postback in asp.net

    - by user557135
    Hi, I have a few user controls which I add to the aspx form depending on the user's choice from a combo box. I have a user control which has a textbox in it and a getValue() method that returns the value of the textbox. After user selects the related item I load the control and add to a panel using loadControl method. User enters some text. After a postback I want to keep the user control and the user input in the same state before . Hope i could be clear. Thanks in advanced

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  • ado.net-data-services filer using composite

    - by Thurein
    Hi, I am having a problem filter a query. I have Contact and Tag entities. Actually in the database, they are 3 different tables, Contacts, Tags and ContactTag table. I would like to filter contacts using the Tag name. I was trying this filter but it did not work. http://localhost:50143/ContactDataService.svc/Contacts?$filter=Tags/TagName eq 'Tag1' Am I missing any thing ? Thanks Thurein

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  • ASP.NET button click event still firing even through custom server-side validation fails

    - by Josh
    I am having a problem where my button click event is still firing even though my custom server-side validation is set to args.IsValid = false. I am debugging through the code and the validation is definitely being fired before the button click, and args.IsValid is definitely being set to false once the custom validation takes place, but it always makes its way to the button click event afterwards. Any ideas on why this is?

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  • .Net SQL Parameter for String List Problem

    - by JK
    I am writing a C# program in which I send a query to SQL Server to be processed and a dataset returns. I am using parameters to pass information to the query before it is sent to SQL server. This works fine except in the situation below. The query looks like this: reportQuery = " Select * From tableName Where Account_Number in (@AccountNum); and Account_Date = @AccountDate "; The AccountDate parameter works find but not the AccountNum parameter. I need the final query to execute like this: Select * From tableName Where Account_Number in ('AX3456','YZYL123','ZZZ123'); and Account_Date = '1-Jan-2010' The problem is that I have these account numbers (actually text) in a C# string list. To feed it to the parameter, I have been declaring the parameter as a string. I turn the list into one string and feed it to the parameter. I think the problem is that I am feeding the paramater this: "'AX3456','YZYL123','ZZZ123'" when it wants this 'AX3456','YZYL123','ZZZ123' How do I get the string list into the query using a parameter and have it execute as shown above? This is how I am declaring and assigning the parameter. SqlParameter AccountNumsParam = new SqlParameter(); AccountNumsParam.ParameterName = "@AccountNums"; AccountNumsParam.SqlDbType = SqlDbType.NVarChar; AccountNumsParam.Value = AccountNumsString; FYI, AccountNumString == "'AX3456','YZYL123','ZZZ123'"

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  • ASP.NET button_click not firing, after browser back button

    - by the berserker
    I have a ASPX Page that contains several user controls, which are loaded dynamically after user interaction. On one of ascx I have a hidden button that is being clicked on some user actions (via button.click()), which works fine on 1st page load. But after the form is being submitted once, the other ascx is loaded. There if user clicks the back button and resubmits the 1st form (again via button.click()), button_clicked event on server does not fire again. Any thought?

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  • single sign on in asp.net

    - by gopal
    Hi , We have developed implemented single sign on methodology to authenticate user. When a page is requested, if it is not authenticated then a login page will be redirected. Once they logged in the requested page will be shown. this is working when we don't assign a domain to the virtual directory. But when we assign the domain to virtual directory after the authentication the application is not redirecting to the requested page. We are using FormsAuthentication.GetRedirectUrl method to redirect the requested page. Why this is happening? How can we resolve this issue?

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  • asp.net Javascript serialiser

    - by nuubee
    Hi Im having trouble getting the Javascript serialiser to convert this Json string to alist of strings {'Roles':['Role1','Role2','Role3','Role4']}"; (new JavaScriptSerializer()).Deserialize< List<String> >( strInput ) it returns an empty list

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  • DI: Injecting ActionFilterAttribute implementation (ASP.NET MVC)

    - by Sosh
    I was wondering if it is possible to inject a particular ActionFilterAttribute implementation using a IoC container. For example, imagine you create a TransactionAttribute class [Transaction] You use this to decorate action which should be wrapped in a transaction in the persistence layer. But implementation details of the attribute will be tied to the persistence tech you are using, but strictly speaking, your controller should not know about this, and you might want to swap this out. What I would like to do, is define some kind of TransactionAttribute interface, and then have my IoC inject the correct implantation. So on my actions I only need specify: [Transaction] public ActionResult SomeAction() { .... } ...and the IoC will inject the correct implementation depending on config (eg. something like NHibernateTransactionAttribute, or SomeOtherORMTransactionAttribute). Is this possible? Has anyone done it?

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  • sharing news via twitter/facebook on ASP.NET

    - by Alexander
    I know this might have been asked a few times.. I have a news section in my site and I want to be able to share that news via facebook/twitter/buzz like the following: How can I do that? Is there a tutorial on how to implement these directly? facebook and twitter is the most important one

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  • .NET: bool vs enum as a method parameter

    - by Julien Lebosquain
    Each time I'm writing a method that takes a boolean parameter representing an option, I find myself thinking: "should I replace this by an enum which would make reading the method calls much easier?". Consider the following with an object that takes a parameter telling whether the implementation should use its thread-safe version or not (I'm not asking here if this way of doing this is good design or not, only the use of the boolean): public void CreateSomeObject(bool makeThreadSafe); CreateSomeObject(true); When the call is next to the declaration the purpose of the parameter seems of course obvious. When it's in some third party library you barely know, it's harder to immediately see what the code does, compared to: public enum CreationOptions { None, MakeThreadSafe } public void CreateSomeObject(CreationOptions options); CreateSomeObject(CreationOptions.MakeThreadSafe); which describes the intent far better. Things get worse when there's two boolean parameters representing options. See what happened to ObjectContext.SaveChanges(bool) between Framework 3.5 and 4.0. It has been obsoleted because a second option has been introduced and the whole thing has been converted to an enum. While it seems obvious to use an enumeration when there's three elements or more, what's your opinion and experiences about using an enum instead a boolean in these specific cases?

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  • Find Label Control in Repeater Asp.net

    - by user2769165
    I am using repeater and I want to find the label control in my repeater. here is my code <asp:Repeater ID="friendRepeater" runat="server"> <table cellpadding="0" cellspacing="0"> <ItemTemplate> <tr style=" width:700px; height:120px;"> <td> <div style=" padding-left:180px;"> <div id="leftHandPost" style="float:left; width:120px; height:120px; border: medium solid #cdaf95; padding-top:5px;"> <div id="childLeft" style=" padding-left:5px;"> <div id="photo" style=" border: thin solid black; width:100px;height:100px;"> <asp:Image id="photoImage" runat="server" ImageUrl='<%# String.Concat("Images/", Eval("Picture")) %>' Width="100px" Height="100px" /> </div> </div><!--childLeft--> </div><!--leftHandPost--> </div> </td> <td> <div id="rightHandPost" style=" float:right; padding-right:260px;"> <div id="childRight" style="width:400px; height:120px; border: medium solid #cdaf95; padding-top:5px; padding-left:10px;"> <strong><asp:Label id="lblName" runat="server"><%# Eval("PersonName") %></asp:Label></strong><br /> <div style=" float:right; padding-right:10px;"><asp:Button runat="server" Text="Add" onClick="add" /></div><br /> <asp:Label id="lblID" runat="server"><%# Eval("PersonID") %></asp:Label><br /> <asp:Label id="lblEmail" runat="server"><%# Eval("Email") %></asp:Label> </div><!--childRight--> </div><!--rightHandPost--> </td> </tr> </ItemTemplate> <AlternatingItemTemplate> <tr style=" width:700px; height:120px;"> <td> <div style=" padding-left:180px;"> <div id="Div1" style="float:left; width:120px; height:120px; border: medium solid #cdaf95; padding-top:5px;"> <div id="Div2" style="padding-left:5px;"> <div id="Div3" style=" border: thin solid black; width:100px;height:100px;"> <asp:Image id="photoImage" runat="server" ImageUrl='<%# String.Concat("Images/", Eval("Picture")) %>' Width="100px" Height="100px" /> </div> </div><!--childLeft--> </div><!--leftHandPost--> </div> </td> <td> <div id="Div4" style=" float:right; padding-right:260px;"> <div id="Div5" style="width:400px; height:120px; border: medium solid #cdaf95; padding-top:5px; padding-left:10px;"> <strong><asp:Label id="lblName" runat="server"><%# Eval("PersonName")%></asp:Label></strong> <div style=" float:right; padding-right:10px;"><asp:Button id="btnAdd" runat="server" Text="Add" onClick="add"></asp:Button></div><br /> <br /> <asp:Label id="lblID" runat="server"><%# Eval("PersonID") %></asp:Label><br /> <asp:Label id="lblEmail" runat="server"><%# Eval("Email") %></asp:Label> </div><!--childRight--> </div><!--rightHandPost--> </td> </tr> </AlternatingItemTemplate> <FooterTemplate> </table> </FooterTemplate> </asp:Repeater> Here is the code behind for the add button. protected void add(object sender, EventArgs e) { DateTime date = DateTime.Now; System.Web.UI.WebControls.Label la = (System.Web.UI.WebControls.Label)friendRepeater.FindControl("PersonID"); String id = la.Text; try { MySqlConnection connStr = new MySqlConnection(); connStr.ConnectionString = "Server = localhost; Database = healthlivin; Uid = root; Pwd = khei92;"; String insertFriend = "INSERT INTO contactFriend(friendID, PersonID, PersonIDB, date) values (@id, @personIDA, @personIDB, @date)"; MySqlCommand cmdInsertStaff = new MySqlCommand(insertFriend, connStr); cmdInsertStaff.Parameters.AddWithValue("@id", "F000004"); cmdInsertStaff.Parameters.AddWithValue("@personIDA", "M000001"); cmdInsertStaff.Parameters.AddWithValue("@personIDB", id); cmdInsertStaff.Parameters.AddWithValue("@date", date); connStr.Open(); cmdInsertStaff.ExecuteNonQuery(); MessageBox.Show("inserted"); connStr.Close(); } catch (Exception ex) { MessageBox.Show(ex.ToString()); } } I have get the error of Object reference not set to an instance of an object. I think is because there are no value in the Label. The Find Control are not working. May I know how can fix this problem? Thank you very much

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  • Javascript update before page loads in ASP.NET

    - by user204588
    Hello, I'm trying to update values from a xml file into textboxes. I have this javascript being called in the Page_Load event this.Page.ClientScript.RegisterStartupScript(this.GetType(), "Script", sb.ToString(), true); I click the continue button which does a post back but the values are not updated until I refresh the page again which makes me think the js isn't being run until after the page is returned. I'm wondering how to have the values updated when the page is refreshed after the button postback. thanks

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  • Create a ASP.NET smart gridview

    - by harold-sota
    I wont to create a User Control based in gridview that have the edit add delete incorporate, the problem is these: In the admin part of my web site i have to repeat the same action for view add delete update the data for different datasource. I wont to create a generic gridview that have incorporate these action. The gridview can take a xml file for configure him self dependently of the request for desplay the data. Any ideas how i can do it?

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  • VB.NET encoding one character wrong

    - by Nick Spiers
    I have a byte array that I'm encoding to a string: Private Function GetKey() As String Dim ba() As Byte = {&H47, &H43, &H44, &H53, &H79, &H73, &H74, &H65, &H6D, &H73, &H89, &HA, &H1, &H32, &H31, &H36} Dim strReturn As String = Encoding.ASCII.GetString(ba) Return strReturn End Function Then I write that to a file via IO.File.AppendAllText. If I open that file in 010 Editor (to view the binary data) it displays as this: 47 43 44 53 79 73 74 65 6D 73 3F 0A 01 32 31 36 The original byte array contained 89 at position 11, and the encoded string contains 3F. If I change my encoding to Encoding.Default.GetString, it gives me: 47 43 44 53 79 73 74 65 6D 73 E2 80 B0 0A 01 32 31 36 Any help would be much appreciated!

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  • Rails controller not rendering correct view when form is force-submitted by Javascript

    - by whazzmaster
    I'm using Rails with jQuery, and I'm working on a page for a simple site that prints each record to a table. The only editable field for each record is a checkbox. My goal is that every time a checkbox is changed, an ajax request updates that boolean attribute for the record (i.e., no submit button). My view code: <td> <% form_remote_tag :url => admin_update_path, :html => { :id => "form#{lead.id}" } do %> <%= hidden_field :lead, :id, :value => lead.id %> <%= check_box :lead, :contacted, :id => "checkbox"+lead.id.to_s, :checked => lead.contacted, :onchange => "$('#form#{lead.id}').submit();" %> <% end %> </td> In my routes.rb, admin_update_path is defined by map.admin_update 'update', :controller => "admin", :action => "update", :method => :post I also have an RJS template to render back an update. The contents of this file is currently just for testing (I just wanted to see if it worked, this will not be the ultimate functionality on a successful save)... page << "$('#checkbox#{@lead.id}').hide();" When clicked, the ajax request is successfully sent, with the correct params, and the action on the controller can retrieve the record and update it just fine. The problem is that it doesn't send back the JS; it changes the page in the browser and renders the generated Javascript as plain text rather than executing it in-place. Rails does some behind-the-scenes stuff to figure out if the incoming request is an ajax call, and I can't figure out why it's interpreting the incoming request as a regular web request as opposed to an ajax request. I may be missing something extremely simple here, but I've kind-of burned myself out looking so I thought I'd ask for another pair of eyes. Thanks in advance for any info!

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  • .NET 4 ... Parallel.ForEach() question

    - by CirrusFlyer
    I understand that the new TPL (Task Parallel Library) has implemented the Parallel.ForEach() such that it works with "expressed parallelism." Meaning, it does not guarantee that your delegates will run in multiple threads, but rather it checks to see if the host platform has multiple cores, and if true, only then does it distribute the work across the cores (essentially 1 thread per core). If the host system does not have multiple cores (getting harder and harder to find such a computer) then it will run your code sequenceally like a "regular" foreach loop would. Pretty cool stuff, frankly. Normally I would do something like the following to place my long running operation on a background thread from the ThreadPool: ThreadPool.QueueUserWorkItem( new WaitCallback(targetMethod), new Object2PassIn() ); In a situation whereby the host computer only has a single core does the TPL's Parallel.ForEach() automatically place the invocation on a background thread? Or, should I manaully invoke any TPL calls from a background thead so that if I am executing from a single core computer at least that logic will be off of the GUI's dispatching thread? My concern is if I leave the TPL in charge of all this I want to ensure if it determines it's a single core box that it still marshalls the code that's inside of the Parallel.ForEach() loop on to a background thread like I would have done, so as to not block my GUI. Thanks for any thoughts or advice you may have ...

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