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  • AsyncPostBackTrigger disables buttons...

    - by afsharm
    I've a simple UpdatePanel and a button outside of it. I've introduced the button as an AsyncPostBackTrigger in the UpdatePanel. UpdatePanel itself works fine but the button does not. Whenever the button is clicked, its click handler does not run just like the button is not clicked at all! Why the button is not working and how can it be fixed? UPDATE: here is the markup: <asp:UpdatePanel ID="upGridView" runat="server" UpdateMode="Conditional"> <ContentTemplate> <asp:GridView ID="grdList" SkinID="SimpleGridView" DataKeyNames="Key" runat="server" AllowPaging="True" PageSize="15" AutoGenerateColumns="False" Caption="<%$ Resources: CommonResources, grdListCaption %>" EmptyDataText="<%$ Resources: CommonResources, grdListEmptyDataText %>" OnRowEditing="grdList_RowEditing" OnPageIndexChanging="grdList_PageIndexChanging" OnRowCreated="grdList_RowCreated"> <Columns> </Columns> </asp:GridView> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="btnDelete" EventName="Click" /> <asp:AsyncPostBackTrigger ControlID="btnNew" EventName="Click" /> <asp:AsyncPostBackTrigger ControlID="btnForward" EventName="Click" /> </Triggers> </asp:UpdatePanel> <asp:Button ID="btnDelete" runat="server" SkinID="Button" Text="<%$ Resources: CommonResources, btnDelete %>" OnClick="btnDelete_Click" /> <asp:Button ID="btnNew" runat="server" SkinID="Button" Text="<%$ Resources: CommonResources, btnNew %>" OnClick="btnNew_Click" /> <asp:Button ID="btnForward" runat="server" SkinID="Button" meta:resourcekey="btnForward" OnClick="btnForward_Click" />

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  • VB.NET dynamic use of form controls

    - by Marcx
    I have 10 labels named lbl1, lbl2, ... lbl10 I'd like to change their propriety (using a cicle) with the cicle index for i as integer=1 to 10 step 1 lbl (i) = PROPRETY 'I know this is wrong but it's what I would do... end for I'm using a workaround, but I'm looking for a better way.. Dim exm(10) As Label exm(1)=lbl1 exm(2)=lbl2 ... exm(10)=lbl10 for i as integer=1 to 10 step 1 exm (i) = PROPRETY end for

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  • ASP.NET 3.5 Web Site stopped importing System namespace by default

    - by Alexis
    I have a VB Web Site project that has recently (and mysteriously) stopped importing the "System" namespace by default. I'm having to either place a "Imports System" line at the top of each code behind, or preface everything with "System", which is fairly annoying, not to mention redundant. I can't for the life of me figure out how to get the System namespace back to being imported by default. I've already checked to see that WINDOWS\Microsoft.NET\Framework\v2.0.50727\CONFIG\web.config contains the <add namespace="System"/> line--it does. That was my best lead. I'm tearing my hair out. Does anyone have any suggestions?

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  • How to assign .net membership roles to individual database records

    - by mdresser
    I'm developing a system where we want to restrict the availability of information displayed to users based on their roles. e.g. I have a tabled called EventType (ID, EventTypeDescription) which contains the following records: 1, 'Basic Event' 2, 'Intermediate Event' 3, 'Admin Event' What I need to achieve is to filter the records returned based on the username (and hence role) of the logged-in user. e.g if an advanced user is logged in they will see all the event types, if the standard user is logged in they will only see the basic event type etc. Ideally id like to do this in a way which can be easily extended to other tables as necessary. So I'd like to avoid simply adding a 'Roles' field to each table where the data is user context sensitive. One idea I'm thinking of is to create some kind of permissions table like: PermissionsTable ( ID, Aspnet_RoleId, TableName, PrimaryKeyValue ) this has the drawback of using this is obviously having to use the table name to switch which table to join onto. Edit: In the absence of any better suggestions, I'm going to go with the last idea I mentioned, but instead of having a TableName field, I'm going to normalise the TableName out to it's own table as follows: TableNames ( ID, TableName ) UserPermissionsTable ( ID, Aspnet_UserId, TableID, PrimaryKeyValue )

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  • Synchronizing ASP.NET MVC action methods with ReaderWriterLockSlim

    - by James D
    Any obvious issues/problems/gotchas with synchronizing access (in an ASP.NET MVC blogging engine) to a shared object model (NHibernate, but it could be anything) at the Controller/Action level via ReaderWriterLockSlim? (Assume the object model is very large and expensive to build per-request, so we need to share it among requests.) Here's how a typical "Read Post" action would look. Enter the read lock, do some work, exit the read lock. public ActionResult ReadPost(int id) { // ReaderWriterLockSlim allows multiple concurrent writes; this method // only blocks in the unlikely event that some other client is currently // writing to the model, which would only happen if a comment were being // submitted or a new post were being saved. _lock.EnterReadLock(); try { // Access the model, fetch the post with specificied id // Pseudocode, etc. Post p = TheObjectModel.GetPostByID(id); ActionResult ar = View(p); return ar; } finally { // Under all code paths, we must release the read lock _lock.ExitReadLock(); } } Meanwhile, if a user submits a comment or an author authors a new post, they're going to need write access to the model, which is done roughly like so: [AcceptVerbs(HttpVerbs.Post)] public ActionResult SaveComment(/* some posted data */) { // try/finally omitted for brevity _lock.EnterWriteLock(); // Save the comment to the DB, update the model to include the comment, etc. _lock.ExitWriteLock(); } Of course, this could also be done by tagging those action methods with some sort of "synchronized" attribute... but however you do it, my question is is this a bad idea? ps. ReaderWriterLockSlim is optimized for multiple concurrent reads, and only blocks if the write lock is held. Since writes are so infrequent (1000s or 10,000s or 100,000s of reads for every 1 write), and since they're of such a short duration, the effect is that the model is synchronized , and almost nobody ever locks, and if they do, it's not for very long.

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  • Subscription payment processing with ASP.NET

    - by bobsmith123
    I would like to create a subscription based website with users getting charged every month. I know I have to create an account with paypal or authorize.net. Do these payment providers automatically bill the user every month? How would I take care of offering the service free for 30 days and start billing after that? Also, I've heard of middle men services like spreedly, chargify. Where do they fit into the equation? Can someone help me wrap my head around these concepts? Considering, I am based in the U.S but would like to have the payment provider accept any kind of currency. Which payment provider do you suggest?

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  • Dynamic fowarding with SOCKS5 proxy [on hold]

    - by bh3244
    I'm building my own SOCKS5 client and HTTP library and am having trouble figuring out how things work with dynamic port forwarding. So far I can connect successfully with my SOCKS5 client, but from there on I am stuck. I am using the ssh -D command. Considering I have my local machine "home" and my server "server" and I wanted to use "server" as proxy for all connections I understand I would type ssh -D "localport" "serverhostname" on my local machine "home". This command I understand has ssh accept connections with the SOCKS5 protocol. So now if I want to connect to google.com(74.125.224.72:80) and issue a GET for the front page, I assume I would send the SOCKS5 client request and the server would respond back with a 0x00 "succeeded" and from then on I am connected and I would send the HTTP GET request and the server would respond back accordingly with the data. Now if I want to navigate to a different website, must I issue another SOCKS5 connection request for that sites IP/hostname? I'm confused if this is the way it is done, or if there is a program listening on the local port of the "server" and handling outgoing and incoming data. To reiterate: Do SOCKS5 proxies work by sending repeated SOCKS5 connection requests for different addresses or is there just one connection to a local port on "server" and another program on "server" handles the outgoing connection to the internet by using that local port to send and receive data to/from "home"?

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  • Accessing Static Methods on a Generic class in c#

    - by mrlane
    Hello, I have the following situation in code, which I suspect may be a bit dodgey: I have a class: abstract class DataAccessBase<T> : IDataAccess where T : AnotherAbstractClass This class DataAccessBase also has a static factory method which creates instances of derived classes of itself using an enum value in a which statement to decide which derived type to create: static IDataAccess CreateInstance(TypeToCreateEnum) Now, the types derived from DataAccessBase<T> are themselves NOT generic, they specify a type for T: class PoLcZoneData : DataAccessBase<PoLcZone> // PoLcZone is derived from AnotherAbstractClass So far I am not sure if this is pushing the limits of good use of generics, but what I am really concerned about is how to access the static CreateInstance() method in the first place: The way I am doing this at the moment is to simply pass any type T where T : AnotherAbstractClass. In particular I am passing AnotherAbstractClass itself. This allows compilation just fine, but it does seem to me that passing any type to a generic class just to get at the statics is a bit dodgey. I have actually simplified the situation somewhat as DataAccessBase<T> is the lower level in the inheritance chain, but the static factory methods exists in a middle tier with classes such as PoLcZoneData being the most derived on the only level that is not generic. What are peoples thoughts on this arrangement?

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  • QT vs. Net - REAL comparisons for R.A.D. projects

    - by Pirate for Profit
    Man in all these Qt vs. .NET discussions 90% these people argue about the dumbest crap. Trying to get a real comparison chart here, because I know a little about both frameworks but I don't know everything. I believe Qt and .NET both have strengths and weaknesses. This is to make a comparison that highlights these so people can make more informed decisions before embarking on a project, in the spirit of R.A.D. Event Handling In Qt the event handling system is very simple. You just emit signals when something cool happens and then catch them in slots. ie. // run some calculations, then emit valueChanged(30, false, 20.2); and then catching it, any object can make a slot to recieve that message easily void MyObj::valueChanged(int percent, bool ok, float timeRemaining). It's easy to "block" an event or "disconnect" when needed, and works seamlessly across threads... once you get the hang of it, it just seems a lot more natural and intuitive than the way the .NET event handling is set up (you know, void valueChanged(object sender, CustomEventArgs e). And I'm not just talking about syntax, because in the end the .NET anonymous delegates are the bomb. I'm also talking about in more than just reflection (because, yes, .NET obviously has much stronger reflection capabilities). I'm talking about in the way the system feels to a human being. Qt wins hands down for the simplest yet still flexible event handling system ever i m o. Plugins and such I do love some of the ease of C# compared to C++, as well as .NET's assembly architecture, even though it leads to a bunch of .dll's (there's ways to combine everything into a single exe though). That is a big bonus for modular projects, which are a PITA to import stuff in C++ as far as RAD is concerned. Database Ease of Doing Crap Also what about datasets and database manipulations. I think .net wins here but I'm not sure. Threading/Conccurency How do you guys think of the threading? In .NET, all I've ever done is make like a list of master worker threads with locks. I like QConcurrentFramework, you don't worry about locks or anything, and with the ease of the signal slot system across threads it's nice to get notified about the progress of things. QConcurrent is the simplest threading mechanism I've ever played with. Memory Usage Also what do you think of the overall memory usage comparison. Is the .NET garbage collector pretty on the ball and quick compared to the instantaneous nature of native memory management? Or does it just let programs leak up a storm and lag the computer then clean it up when it's about to really lag? Doesn't the just-in-time compiler make native code that is pretty good, like and that only happens the first time the program is run? However, I am a n00b who doesn't know what I'm talking about, please school me on the subject.

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  • Where should i place the scriptmanager

    - by SmartestVEGA
    I am planning to rebuilding the code of one asp.net project to another asp.net project. but i am stuck some where ... I drag and dropped the master page and the views (4 nos) into the master page. now i need to drop scriptmanager.. where should i need to drag and drop this? inside the multiview outside the multiview inside view? if show which view ? view 1 ? view 2? view 3? view 4? What actually the script manager do ?

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  • Managing multiple .NET languages in a web application

    - by tomfanning
    I am part of a development team building a new ASP.NET 3.5 web application. Two of us are C# coders, and the other is a VB.NET coder. I know that we can mix languages on a per-project basis, and one can build classes in one language that inherit from classes written in the other language in a different project (which we are already doing), but I can see us getting into a situation where we might well end up with cyclic dependencies between our various project DLLs. Other than simply having a high number of projects (more seperation of concerns into more libraries), how have you managed this situation on your own projects? Note - I believe this question to be different enough from the only similar match I could find (this one) on the basis that we are not wanting to use different languages in order to take advantage of their specific features per se, but rather to make use of what developer resource is available to us (i.e. one dev just happens to be VB.NET only).

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  • LINQ how to concatenate 2 db columns to display in dropdownlist

    - by Simke Nys
    I'm trying to concatenate product_name with product_prize_kg by using LINQ so I can display it as one field in a dropdownlist. When I try to do this I get the following error. value of type 'system.collections.generic.list(of anonymous type )' cannot be converted to ... My code is like this: Public Function selectAll() As List(Of tblProduct) Dim result = From product In dc.tblProducts Select New With { Key .productID = product.pk_product_id, Key .productNameKg = Convert.ToString(product.product_name) & " " & Convert.ToString(product.product_price_kg) } Return result.ToList() End Function This is the dropdownlist that I want to fill. <asp:DropDownList ID="DropDownList1" runat="server" DataSourceID="ObjectDataSource1" DataTextField="productNameKg" DataValueField="productID"> </asp:DropDownList> Thanks Grtz Simke

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  • Windows/.NET Load Distribution & Balancing

    - by andrewbadera
    Hi all, Is there a vetted Windows-friendly, or even .NET-native, load-distributing/load-balancing utility out there along the lines of HA Proxy? We have a .NET stack product, and the one piece that we step out of the stack is for load-balancing. We need something with configurable rules for distribution -- perhaps subdomain-driven -- that NLB alone doesn't seem to offer. If it integrates directly with .NET, or offers an exposed API callable by webservices, so much the better! Thanks in advance! Clarification: we need to logically part over boxes. This is not just a cluster/failover/replication scenario.

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  • HtmlAgilityPack - Vs 2010 - c# ASP - File Not found

    - by Janosch Geigowskoskilu
    First, I've already searched the web & StackOverflow for hours, and i did find a lot about troubleshooting HtmlAgilityPack and tried most of these but nothing worked. The Situation: I'm developing a C# ASP .NET WebPart in SharePoint Foundation. Everything works fine, now I want to Parse a HTML Page to get all ImagePaths and save the Images on HD/Temp. To do that I was downloading HtmlAgilityPack, current version, add reference to Project, everything looks OK, IntelliSense works fine. The Exception: But when I want to run the section where HtmlAgilityPack should be used my Browser shows me a FileNotFoundException - The File or Assembly could not be found. What I tried: After first searches i tried to include v1.4.0 of HtmlAgilityPack cause I read that the current version in some case is not really stable. This works fine to until the point I want to use HtmlAgilityPack, the same Exception. I also tried moving the HtmlAgilityPack direct to the Solution directory, nothing changed. I tried to insert HtmlAgilityPack via using and I tried direct call e.g. HtmlAgilityPack.HtmlDocument. Conclusion : When I compile no error occurs, the reference is set correct. When I trace the HtmlAgilityPack.dll with ProcMon the Path is shown correct, but sometimes the Result is 'File Locked with only Readers' but I don't know enough about ProcMon to Know what this means or if this is critical. It couldn't have something to do with File Permissions because if I check the DLL the permissions are all given.

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  • Using A Local file path in a Streamwriter object ASP.Net

    - by Nick LaMarca
    I am trying to create a csv file of some data. I have wrote a function that successfully does this.... Private Sub CreateCSVFile(ByVal dt As DataTable, ByVal strFilePath As String) Dim sw As New StreamWriter(strFilePath, False) ''# First we will write the headers. ''EDataTable dt = m_dsProducts.Tables[0]; Dim iColCount As Integer = dt.Columns.Count For i As Integer = 0 To iColCount - 1 sw.Write(dt.Columns(i)) If i < iColCount - 1 Then sw.Write(",") End If Next sw.Write(sw.NewLine) ''# Now write all the rows. For Each dr As DataRow In dt.Rows For i As Integer = 0 To iColCount - 1 If Not Convert.IsDBNull(dr(i)) Then sw.Write(dr(i).ToString()) End If If i < iColCount - 1 Then sw.Write(",") End If Next sw.Write(sw.NewLine) Next sw.Close() End Sub The problem is I am not using the streamwriter object correctly for what I trying to accomplish. Since this is an asp.net I need the user to pick a local filepath to put the file on. If I pass any path to this function its gonna try to write it to the directory specified on the server where the code is. I would like this to popup and let the user select a place on their local machine to put the file.... Dim exData As Byte() = File.ReadAllBytes(Server.MapPath(eio)) File.Delete(Server.MapPath(eio)) Response.AddHeader("content-disposition", String.Format("attachment; filename={0}", fn)) Response.ContentType = "application/x-msexcel" Response.BinaryWrite(exData) Response.Flush() Response.End() I am calling the first function in code like this... Dim emplTable As DataTable = SiteAccess.DownloadEmployee_H() CreateCSVFile(emplTable, "C:\\EmplTable.csv") Where I dont want to have specify the file loaction (because this will put the file on the server and not on a client machine) but rather let the user select the location on their client machine. Can someone help me put this together? Thanks in advance.

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  • Cannot read configuration file due to insufficient permissions

    - by mike
    Okay, I realize there are many questions relating to this error, I have read several questions and answers without resolving my problem. I have a MVC site that I'm trying to debug on local IIS web server. I check the option to use local IIS in the project properties and I've created a virtual directory in IIS. The error I get in Visual Studio is: Unable to start debugging on web server. In IIS i try browse the site but get the error: Cannot read configuration file due to insufficient permissions Config File \?\C:\Users\Mike\Documents\Visual Studio 2010\Projects\MvcApplication1\MvcApplication1\web.config I've set permissions for the pool identity on the web.config and whole project folder. I've tried localsystem identity, no luck! Please help me resolve this. I've spent several hours trying to fix this.

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  • Thread-safe initialization of function-local static const objects

    - by sbi
    This question made me question a practice I had been following for years. For thread-safe initialization of function-local static const objects I protect the actual construction of the object, but not the initialization of the function-local reference referring to it. Something like this: namspace { const some_type& create_const_thingy() { lock my_lock(some_mutex); static const some_type the_const_thingy; return the_const_thingy; } } void use_const_thingy() { static const some_type& the_const_thingy = create_const_thingy(); // use the_const_thingy } The idea is that locking takes time, and if the reference is overwritten by several threads, it won't matter. I'd be interested if this is safe enough in practice? safe according to The Rules? (I know, the current standard doesn't even know what "concurrency" is, but what about trampling over an already initialized reference? And do other standards, like POSIX, have something to say that's relevant to this?) For the inquiring minds: Many such function-local static const objects I used are maps which are initialized from const arrays upon first use and used for lookup. For example, I have a few XML parsers where tag name strings are mapped to enum values, so I could later switch over the tags enum values.

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  • Why can't I renew my dynamic IP address?

    - by qwerty
    So, I'm going to explain this from the start. I've started a project with a friend of mine which includes a webspider, that crawls through all pages on a site and stores them in a DB. Since I've never done this before, I didn't think about the amount of requests I was actually sending to the site, and after a day or two I finally got my IP blocked. I need to be able to visit that site as it's very important to me. Not only for my project, but for other reasons too. (and if I'm able to renew my IP I'm going to set a delay on the crawler so I don't get blocked & DDOS the site) I have a dynamic IP address, at least that's what my router settings say. I've tried ipconfig /flushdns, ipconfig /release, restart computer. No result. I end up with the same IP address. I've also tried renewing it from the router, however, I think it uses the same method which isn't working. Is it possible that site has blocked my mac address? Can a site even access my mac address?

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  • How to use Profile in asp.net?

    - by Phsika
    i try to learn asp.net Profile management. But i added below xml firstName,LastName and others. But i cannot write Profile. if i try to write Profile property. drow my editor Profile : Error 1 The name 'Profile' does not exist in the current context C:\Documents and Settings\ykaratoprak\Desktop\Security\WebApp_profile\WebApp_profile\Default.aspx.cs 18 13 WebApp_profile How can i do that? <authentication mode="Windows"/> <profile> <properties> <add name="FirstName"/> <add name="LastName"/> <add name="Age"/> <add name="City"/> </properties> </profile> protected void Button1_Click(object sender, System.EventArgs e) { Profile.FirstName = TextBox1.Text; Profile.LastName = TextBox2.Text; Profile.Age = TextBox3.Text; Profile.City = TextBox4.Text; Label1.Text = "Profile stored successfully!<br />" + "<br />First Name: " + Profile.FirstName + "<br />Last Name: " + Profile.LastName + "<br />Age: " + Profile.Age + "<br />City: " + Profile.City; }

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  • Play Video File in Asp. Net 3.5 in IIS

    - by Sneha Joshi
    I have developed an application to upload a video on the server and then play it. It runs well when i execute it in Visual Studio 2008 in-built web server.. But when I configure it on IIS, the video does not play... Is there any settings needed in IIS to play video ?? The code of Button Click event - **protected void btnPlayVideo_Click(object sender, EventArgs e) { try { string himaSagarURL = this.lnkbtnVideo.Text; bool isFullSize = false; this.Literal1.Text = this.Play_Video(himaSagarURL, isFullSize); } catch (Exception ex) { this.Response.Write(ex.ToString()); } } This button click event calls the Play_Video method which is given below.. The code I used for embedding - private string Play_Video(string sagarURL, bool isFullSize) { string himaSagarObject = ""; sagarURL = sagarURL + ""; sagarURL = sagarURL.Trim(); if (sagarURL.Length > 0) { //Continue. } else { throw new System.ArgumentNullException("sagarURL"); } string himaSagarWidthAndHeight = ""; if (isFullSize) { himaSagarWidthAndHeight = ""; } else { himaSagarWidthAndHeight = "width='640' height='480'"; } himaSagarObject = himaSagarObject + "<object classid='CLSID:22D6F312-B0F6-11D0-94AB-0080C74C7E95' id='player' " + himaSagarWidthAndHeight + " standby='Please wait while the object is loaded...'>"; himaSagarObject = himaSagarObject + "<param name='url' value='" + sagarURL + "' />"; himaSagarObject = himaSagarObject + "<param name='src' value='" + sagarURL + "' />"; himaSagarObject = himaSagarObject + "<param name='AutoStart' value='true' />"; himaSagarObject = himaSagarObject + "<param name='Balance' value='0' />"; //-100 is fully left, 100 is fully right. himaSagarObject = himaSagarObject + "<param name='CurrentPosition' value='0' />"; //Position in seconds when starting. himaSagarObject = himaSagarObject + "<param name='showcontrols' value='true' />"; //Show play/stop/pause controls. himaSagarObject = himaSagarObject + "<param name='enablecontextmenu' value='true' />"; //Allow right-click. himaSagarObject = himaSagarObject + "<param name='fullscreen' value='" + isFullSize.ToString() + "' />"; //Start in full screen or not. himaSagarObject = himaSagarObject + "<param name='mute' value='false' />"; himaSagarObject = himaSagarObject + "<param name='PlayCount' value='1' />"; //Number of times the content will play. himaSagarObject = himaSagarObject + "<param name='rate' value='1.0' />"; //0.5=Slow, 1.0=Normal, 2.0=Fast himaSagarObject = himaSagarObject + "<param name='uimode' value='full' />"; // full, mini, custom, none, invisible himaSagarObject = himaSagarObject + "<param name='showdisplay' value='true' />"; //Show or hide the name of the file. himaSagarObject = himaSagarObject + "<param name='volume' value='50' />"; // 0=lowest, 100=highest himaSagarObject = himaSagarObject + "</object>"; return himaSagarObject; }**

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  • .net MVC 3 multiple columns

    - by Teodor
    i want to display a list in more columns with 5 items/column my code now doesn't work as expected: @{ var c=0; } <div > @foreach (var item in Model) { c += 1; @Html.ActionLink(item.Judet , "Browse", new { judet = item.Judet }) <br /> if (c == 5){ Response.Write("</div><div style='border: 1px solid red;'>"); c = 0; } } </div>

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  • Membership.ValidateUser always returns false after upgrade to VS 2010 / .NET 4.0

    - by nw
    Not sure whether this pertains to VS 2010 or to the upgraded framework, but... we are using the Oracle membership provider to authenticate users. Prior to the upgrade everything worked fine, but now Membership.ValidateUser(user, password) returns false despite valid credentials. There is no exception thrown, so it's hard to determine what the problem might be. The website administration tool in VS 2010 is still able to manage users and roles (more or less), so I have no reason to question connectivity. What might the problem be?

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  • AsyncPostBackTrigger Just flashing/flicking the UpdatePanel but not updating it

    - by Pankaj
    I am trying UpdatePanel & AsyncPostBackTrigger on master pages through find control method but problem is when I click on button (UpdateButton) It just flash/flick (No Postback) the UpdatePanle but still it don't update or refresh the gridview (images) inside the updatePanel. I have placed script Manger on the master page & an AJAX Update panel in a ContentPlaceHolder in the child page. Also, in another ContentPlaceholder there is an asp button (outside of the UpdatePanel). I want to refresh/reload the AJAX UpdatePanel with this asp button. Thanks for suggestions. Child Page Code :- protected void Page_Load(object sender, EventArgs e) { ScriptManager ScriptManager1 = (ScriptManager)Master.FindControl("ScriptManager1"); ContentPlaceHolder cph = (ContentPlaceHolder)Master.FindControl("cp_Button"); Button btnRefresh = (Button)cph.FindControl("btnRefresh"); ScriptManager1.RegisterAsyncPostBackControl(btnRefresh); } protected void btnRefresh_Click(object sender, EventArgs e) { UpdatePanel1.Update(); } <%@ Page Title="" Language="C#" MasterPageFile="~/InnerMaster.master" AutoEventWireup="true" CodeFile="A.aspx.cs" Inherits="A" Async="true" %> <asp:Content ID="Content3" ContentPlaceHolderID="MainContent" Runat="Server"> <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server"> <ContentTemplate> <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="id" DataSourceID="SqlDataSource1"> <Columns> <asp:TemplateField> <ItemTemplate> <asp:Image ID="img12" runat="server" Width="650px" Height="600" ToolTip="A" ImageUrl='<%# Page.ResolveUrl(string.Format("~/Cli/{0}", Eval("image"))) %>' /> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> </ContentTemplate> </asp:UpdatePanel> </asp:Content> <asp:Content ID="Content4" ContentPlaceHolderID="cp_Button" Runat="Server"> <asp:Button ID ="btnRefresh" runat="server" onclick="btnRefresh_Click" Height="34" Width="110" Text="More Images" /> </asp:Content> Hi updated code :- Now on click event whole pages is refreshed. using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; namespace EProxy { public class EventProxy : Control, IPostBackEventHandler { public EventProxy() { } public void RaisePostBackEvent(string eventArgument) { } public event EventHandler<EventArgs> EventProxied; protected virtual void OnEventProxy(EventArgs e) { if (this.EventProxied != null) { this.EventProxied(this, e); } } public void ProxyEvent(EventArgs e) { OnEventProxy(e); } } } On Master Page Code (btn click):- protected void btnRefresh_Click(object sender, EventArgs e) { ContentPlaceHolder cph = (ContentPlaceHolder)this.FindControl("MainContent"); EventProxy eventProxy = (EventProxy)cph.FindControl("ProxyControl") as EventProxy; eventProxy.ProxyEvent(e); } Web Config :- <pages maintainScrollPositionOnPostBack="true" enableViewStateMac="true"> <controls> <add tagPrefix="it" namespace="EProxy" assembly="App_Code"/> </controls> </pages>

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