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  • Change button's enabled property via checkbox

    - by Ivan Stoyanov
    I tried this javascript but it doesn't work - here I need to change the button's enabled property to true when the checkbox is checked and to false when it isn't. This is my code. <tr> <td colspan="2" align="center"> <asp:CheckBox ID="cbAcceptAgreement" runat="server" OnClientClick="acceptAgreement(this)" /> <asp:Label ID="lblUserAgreement" runat="server" Text="I accept the " /> <asp:HyperLink ID="hlUserAgreement" runat="server" Text="User Agreement" NavigateUrl="Help/UserAgreement.aspx" /> </td> </tr> <tr> <td colspan="2" align="center"> <asp:Button ID="btnRegister" runat="server" Text="Register" /> </td> </tr> <script type="text/javascript"> function acceptAgreement(Obj) { document.getElementById('<%=btnRegister.ClientID%>').disabled = !obj.checked; } </script> Can you help me solve this problem?

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  • Button Onclick event (which is in codbehind) doesn't get triggered in MVC 2

    - by rksprst
    I had an MVC 1.0 web application that was in VS 2008; I just upgraded the project to VS 2010 which automatically upgraded MVC to 2.0. I have a bunch of viewpages have codebehind files that were manually added. The project worked fine before the upgrade, but now the onclick even't don't get triggered. I.e. I have an asp:button with an onclick event that points to a method in the codebehind. When you click the button, the onclick event doesn't get triggered. In fact, when you look at the Page variable, IsPostBack is false. This is really bizarre and I'm wondering if anyone know what happened and how to fix it. I'm thinking it has something to do with the changes in MVC 2.0; but I'm not sure. Any help is really appreciated, I've been trying to figure this out for a while. (deleting the codebehinds and moving that to the controller is not really an option since there is so many pages, moving back to vs 2008 is a last resort as I want to make use of some of the VS 2010 features like performance testing.)

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  • Right code to retrieve data from sql server database

    - by HasanGursoy
    Hi, I have some problems in database connection and wonder if I have something wrong in my code. Please review. This question is related: Switch between databases, use two databases simultaneously question. cs="Data Source=mywebsite.com;Initial Catalog=database;User Id=root;Password=toor;Connect Timeout=10;Pooling='true';" using (SqlConnection cnn = new SqlConnection(WebConfigurationManager.ConnectionStrings["cs"].ConnectionString)) { using (SqlCommand cmmnd = new SqlCommand("", cnn)) { try { cnn.Open(); #region Header & Description cmmnd.Parameters.Add("@CatID", SqlDbType.Int).Value = catId; cmmnd.CommandText = "SELECT UpperID, Title, Description FROM Categories WHERE CatID=@CatID;"; string mainCat = String.Empty, rootCat = String.Empty; using (SqlDataReader rdr = cmmnd.ExecuteReader()) { if (rdr.Read()) { mainCat = rdr["Title"].ToString(); upperId = Convert.ToInt32(rdr["UpperID"]); description = rdr["Title"]; } else { Response.Redirect("/", false); } } if (upperId > 0) //If upper category exists add its name { cmmnd.Parameters["@CatID"].Value = upperId; cmmnd.CommandText = "SELECT Title FROM Categories WHERE CatID=@CatID;"; using (SqlDataReader rdr = cmmnd.ExecuteReader()) { if (rdr.Read()) { rootCat = "<a href='x.aspx'>" + rdr["Title"] + "</a> &raquo; "; } } } #endregion #region Sub-Categories if (upperId == 0) //show only at root categories { cmmnd.Parameters["@CatID"].Value = catId; cmmnd.CommandText = "SELECT Count(CatID) FROM Categories WHERE UpperID=@CatID;"; if (Convert.ToInt32(cmmnd.ExecuteScalar()) > 0) { cmmnd.CommandText = "SELECT CatID, Title FROM Categories WHERE UpperID=@CatID ORDER BY Title;"; using (SqlDataReader rdr = cmmnd.ExecuteReader()) { while (rdr.Read()) { subcat.InnerHtml += "<a href='x.aspx'>" + rdr["Title"].ToString().ToLower() + "</a>\n"; description += rdr["Title"] + ", "; } } } } #endregion } catch (Exception ex) { HasanG.LogException(ex, Request.RawUrl, HttpContext.Current); Response.Redirect("/", false); } finally { cnn.Close(); } } } The random errors I'm receiving are: A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host.) A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached. Cannot open database "db" requested by the login. The login failed. Login failed for user 'root'.

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  • iPhone: How to create dynamic image dragging ala iphone icon rearranging

    - by Jim Coffman
    On the iPhone, if you touch and hold your finger on an icon, it starts vibrating, then you can drag them around while the other icons move aside and rearrange dynamically. I'm trying to figure out how to do this inside an application with a grid of images or buttons. I don't need them to vibrate, but I do want the UI to allow the user to drag them with real-time dynamic reordering and then return the new position (ie, an int for accessing a mutable array). Any ideas how to do this? Any sample code out there? Thanks!

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  • How to tell which dataform button ended edit when using EventToCommand

    - by Rodd
    I'm new to SilverLight and Mvvm-Light. I have a DataForm on my view that displays/edits a SelectedPerson property (a Person object) of my view model. I want to execute a command on my viewmodel when the user clicks the Save button but don't want to take action if the user clicks cancel. I added the following to my ViewModel: public RelayCommand PersonEditEnded {get; set;} ... public void Initialize() { PersonEditEnded = new RelayCommand(DoSomething); ... } public void DoSomething() { } I added the following to my View: <toolkit:DataForm x:Name="PersonForm" ... CurrentItem="{Binding SelectedPerson, Mode=TwoWay}"> <i:Interaction.Triggers> <i:EventTrigger EventName="EditEnded"> <gs:EventToCommand Command="{Binding PersonEditEnded, Mode=OneWay}"/> </i:EventTrigger> </i:Interaction.Triggers> </toolkit:DataForm> This works and the DoSomething method is being called when the user presses Submit. However, DoSomething is also called when user presses Cancel. Is there a way to know which button was pressed or to supress the call when Cancel is pressed? Thanks for whatever help you can offer!

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  • Finding the right terminology for a dictionary table

    - by Karl Forner
    My concern is about what I currently call "dictionary tables", that are database tables containing a list of controlled vocabulary. Let's use an example: Suppose you have a table User containing fields: user_id : primary key first_name last_name user_type_id : foreign key to the UserType table and another table UserType with just two fields: user_type_id : primary key name : the name/value of a particular type of user. For instance, the UserType table may contain (1, Administrator), (2, PowerUser), (3, Normal)... My question is: what is the canonical term for a table like UserType, that only contains a list of (dictinct) words. I want to publish some code that help managing this kind of tables, but first I have to name them ! Thanks for your help. Current state of thought: For now I feel Lookup Tables is a good term. It is also used with the same meaning in these posts: http://dbix-class.35028.n2.nabble.com/RFC-Component-for-Lookup-tables-td3504085.html http://tonyandrews.blogspot.de/2004/10/otlt-and-eav-two-big-design-mistakes.html Lookup Tables Best Practices: DB Tables... or Enumerations The only problem is that lookup table is also sometimes used to name a junction table.

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  • Prototypal inheritance should save memory, right?

    - by Techpriester
    Hi Folks, I've been wondering: Using prototypes in JavaScript should be more memory efficient than attaching every member of an object directly to it for the following reasons: The prototype is just one single object. The instances hold only references to their prototype. Versus: Every instance holds a copy of all the members and methods that are defined by the constructor. I started a little experiment with this: var TestObjectFat = function() { this.number = 42; this.text = randomString(1000); } var TestObjectThin = function() { this.number = 42; } TestObjectThin.prototype.text = randomString(1000); randomString(x) just produces a, well, random String of length x. I then instantiated the objects in large quantities like this: var arr = new Array(); for (var i = 0; i < 1000; i++) { arr.push(new TestObjectFat()); // or new TestObjectThin() } ... and checked the memory usage of the browser process (Google Chrome). I know, that's not very exact... However, in both cases the memory usage went up significantly as expected (about 30MB for TestObjectFat), but the prototype variant used not much less memory (about 26MB for TestObjectThin). I also checked: The TestObjectThin instances contain the same string in their "text" property, so they are really using the property of the prototype. Now, I'm not so sure what to think about this. The prototyping doesn't seem to be the big memory saver at all. I know that prototyping is a great idea for many other reasons, but I'm specifically concerned with memory usage here. Any explanations why the prototype variant uses almost the same amount of memory? Am I missing something?

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  • why doesn't IE8 refresh textbox right away?(Jquery)

    - by AndrewSmith
    I have 3 radio buttons and one textbox in my page. These 3 radio controls represent corresponding choice and among them, the third one enables textbox that is disabled by default. If user clicks any one from the first twos after clicking the third, the textbox will be emptied(if user input any) and disabled again. The problem is, in IE, the textbox isn't emptied not until I click back once again on the said textbox. I've used jquery val methods as well as attr but nothing seems to work. You can see my code as follows. The very same code works just fine in Mozilla. I'm not sure why IE is having problem. m.bind_eventform = function(){ $('input[name=poster]').change(function(){ if($('input[name=poster]:checked').val()==2) $('#poster_other').removeAttr('disabled'); else if(!($('#poster_other').is(':disabled'))) { $('#poster_other').attr('disabled','disabled'); $('#poster_other').attr('value',''); //this one doesn't work $('#poster_other').val(''); //as well as this one } }); }; $(document).ready(m.bind_eventform);

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  • Left/Right/Inner joins using C# and LINQ

    - by Keith Barrows
    I am trying to figure out how to do a series of queries to get the updates, deletes and inserts segregated into their own calls. I have 2 tables, one in each of 2 databases. One is a Read Only feeds database and the other is the T-SQL R/W Production source. There are a few key columns in common between the two. What I am doing to setup is this: List<model.AutoWithImage> feedProductList = _dbFeed.AutoWithImage.Where(a => a.ClientID == ClientID).ToList(); List<model.vwCompanyDetails> companyDetailList = _dbRiv.vwCompanyDetails.Where(a => a.ClientID == ClientID).ToList(); foreach (model.vwCompanyDetails companyDetail in companyDetailList) { List<model.Product> productList = _dbRiv.Product.Include("Company").Where(a => a.Company.CompanyId == companyDetail.CompanyId).ToList(); } Now that I have a (source) list of products from the feed, and an existing (target) list of products from my prod DB I'd like to do 3 things: Find all SKUs in the feed that are not in the target Find all SKUs that are in both, that are active feed products and update the target Find all SKUs that are in both, that are inactive and soft delete from the target What are the best practices for doing this without running a double loop? Would prefer a LINQ 4 Objects solution as I already have my objects. EDIT: BTW, I will need to transfer info from feed rows to target rows in the first 2 instances, just set a flag in the last instance. TIA

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  • ASP.Net radio button list

    - by c11ada
    hey all im trying to create a feedback form, i have a some mock code which looks similar to this for (int i = 1; i < 3; i++) { TableRow tr = new TableRow(); Table1.Rows.Add(tr); TableCell QuestionCell = new TableCell(); // get the text for the question and stick it in the cell QuestionCell.Text = "<b>"+i+".</b> Question " + i; tr.Cells.Add(QuestionCell); TableRow tr2 = new TableRow(); Table1.Rows.Add(tr2); // create a cell for the choice TableCell ChoicesCell = new TableCell(); ChoicesCell.Width = 1000; // align the choices on the left ChoicesCell.HorizontalAlign = HorizontalAlign.Left; tr2.Cells.Add(ChoicesCell); RadioButtonList rbl = new RadioButtonList(); rbl.ID = "Radio1_" + i; ChoicesCell.Controls.Add(rbl); rbl.Items.Add("1"); rbl.Items.Add("2"); rbl.Items.Add("3"); rbl.Items.Add("4"); } obviously this code doesn't mean anything, its just to experiment on how i can do this feedback form, the problem im having now is once some one presses the submit button (there's a submit button on the form) how do i go through the table and get text from the radio buttons the user has selected ?? the feedback from in created on page_load !! thanks for any help !!

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  • Python Application in right click menu of OS X

    - by Mark Underwood
    Hi All, I know that there is the PyObjC bridge is OSX and what I want to do is to put a python application/script in the rightclick context menu of OS X. there is the OnMyCommand plugin but I dont think that supports python. I've had a look at how to do it in Carbon/ Objective-C and i'll admit it im a wuss and am just not smart enough yet to grok how to do it (I aint even close to groking it actually.) Anybody got any idea's on how I might go about this? Cheers

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  • Add programmatically clickable Button with custom Views layouted in InterfaceBuilder

    - by allisone
    I have a UIScrollView. In there I add buttons programmatically. Right now I just use UIButton and set one title. But I need to have an UIImage View in there, that will change upon certain events, Text that will change too etc. and I would like to style that in Interface Builder, but I can't figure out how to do this. Which class should I extend, and what kind of xib should I create and what in there, so that in the end I can make the right connections and so that I can listen for UIControlEventTouchDown of that Button.

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  • Sproutcore: Changing css properties on mouse events

    - by greg
    In sproutcore I'm trying to change the border thickness of a div when a user mouses over it. All the other code is working but I can't find how to either access the css properties directly or attach a new classname to the div. borderDiv: SC.View.design({ layout:{top:60, left:60, width: 400, height: 525}, classNames:"panel", mouseEntered: function(evt) { alert("this is working"); // // No idea what to put here to change css properties // return YES } })

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  • HTML Submit button vs AJAX based Post (ASP.NET MVC)

    - by Graham
    I'm after some design advice. I'm working on an application with a fellow developer. I'm from the Webforms world and he's done a lot with jQuery and AJAX stuff. We're collaborating on a new ASP.MVC 1.0 app. He's done some pretty amazing stuff that I'm just getting my head around, and used some 3rd party tools etc. for datagrids etc. but... He rarely uses Submit buttons whereas I use them most of the time. He uses a button but then attaches Javascript to it that calls an MVC action which returns a JSON object. He then parses the object to update the datagrid. I'm not sure how he deals with server-side validation - I think he adds a message property to the JSON object. A sample scenario would be to "Save" a new record that then gets added to the gridview. The user doesn't see a postback as such, so he uses jQuery to disable the UI whilst the controller action is running. TBH, it looks pretty cool. However, the way I'd do it would be to use a Submit button to postback, let the ModelBinder populate a typed model class, parse that in my controller Action method, update the model (and apply any validation against the model), update it with the new record, then send it back to be rendered by the View. Unlike him, I don't return a JSON object, I let the View (and datagrid) bind to the new model data. Both solutions "work" but we're obviously taking the application down different paths so one of us has to re-work our code... and we don't mind whose has to be done. What I'd prefer though is that we adopt the "industry-standard" way of doing this. I'm unsure as to whether my WebForms background is influencing the fact that his way just "doesn't feel right", in that a "submit" is meant to submit data to the server. Any advice at all please - many thanks.

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  • Get a selected radio button value after POST to set other fields enabled/disabled

    - by Redeemed1
    I have an MVC application with a simple control to all selection of All Dates or selecting a Date Range. The radio buttons have an onclick handler to enable/disable the dat pickers. All work well so far. When I try to set the correct context state for the datepickers after doing a POST I cannot get the jQuery selector to return the radio buttons checked value. The code is as follows: <%= Html.RadioButton("DateSelection.AllDates", "AllDates", Model.AllDates == "AllDates", new { onclick = "setReadOnly(this);" })%>ALL Dates&nbsp; <%= Html.RadioButton("DateSelection.AllDates", "Selection", Model.AllDates == "Selection", new { onclick = "setReadOnly(this);" })%>Selection <%= Html.DatePicker("DateSelection.startdate", Model.StartDate, "", "") %> &nbsp;To&nbsp;<%= Html.DatePicker("DateSelection.enddate", Model.EndDate, "", "") %><br /> The javascript is as follows: <script type="text/jscript" > function setReadOnly(obj) { if (obj.value == "Selection") { $('#DateSelection_startdate').css('backgroundColor', '#ffffff') .removeAttr('readonly') .datepicker('enable'); $('#DateSelection_enddate').css('backgroundColor', '#ffffff') .removeAttr('readonly') .datepicker('enable'); } else { $('#DateSelection_startdate').css('backgroundColor', '#eeeeee') .attr('readonly', 'readonly') .val('') .datepicker('disable'); $('#DateSelection_enddate').css('backgroundColor', '#eeeeee') .attr('readonly', 'readonly') .val('') .datepicker('disable'); } } <script type="text/jscript"> $(document).ready(function() { $('#DateSelection_startdate').datepicker('disable').css('backgroundColor', '#eeeeee') .attr('readonly', 'readonly') .val(''); $('#DateSelection_enddate').datepicker('disable').css('backgroundColor', '#eeeeee') .attr('readonly', 'readonly') .val(''); var selected = $('#DateSelection_AllDates:checked'); setReadOnly(selected); }); The javascript line that is causing the problem is var selected = $('#DateSelection_AllDates:checked'); which will NOT return the checked radio button. Using var selected = $('#DateSelection_AllDates'); will return the first radio button value as expected i.e. applying the ':checked' filter ALWAYS returns undefined. Can anyone see anything wrong here?

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  • What is a right way to use servlets?

    - by vikp
    Hi, I'm studying EJB3. I have a session bean which provides services to create/update customer accounts. This session bean offers services on the lines of: public void addCustomer(Customer c); public void updateCustomer(Customer c); Ideally I'd like to have a single servlet: CustomerServlet and it would invoke the session beans that I have listed above. Problem is that I have two JSPs: UpdateAccount.jsp and CreateAccount.jsp. Both of these JSPs have a form with a method POST and action "CustomerServlet". How can I distinguish in a customer servlet which operation I should carry out: createAccount or updateAccount? I guess the alternative is to have a separate servlet for each operation... Thank you

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  • ASP.NET: ModalPopupExtender prevents button click event from firing

    - by C. Griffin
    Here is what I'm trying to do: Click a button on my page, which in turn makes (2) things happen: Display a ModalPopup to prevent the user from pressing any buttons or changing values Call my code behind method, hiding the ModalPopup when finished Here is the ASP markup: <asp:UpdatePanel ID="UpdatePanel2" runat="server" ChildrenAsTriggers="true" UpdateMode="Always"> <Triggers> <asp:AsyncPostBackTrigger ControlID="btnSaveData" EventName="Click" /> </Triggers> <ContentTemplate> <asp:Panel ID="pnlHidden" runat="server" style="display: none;"> <div> <h1>Saving...</h1> </div> </asp:Panel> <cc1:ModalPopupExtender ID="modalPopup" BackgroundCssClass="modalBackground" runat="server" TargetControlID="btnSaveData" PopupControlID="pnlHidden"> </cc1:ModalPopupExtender> <asp:Button ID="btnSaveData" runat="server" Text="Save Data" OnClick="btnSaveData_Click" /> </ContentTemplate> </asp:UpdatePanel> Now, here is my code behind C# code: protected void btnSaveData_Click(object sender, EventArgs e) { UpdateUserData(GetLoggedInUser()); modalPopup.Enabled = false; } Why doesn't this work? The ModalPopup displays perfectly, but the btnSaveData_Click event NEVER fires.

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  • Excel VBA ComboBox2 doesn't get the right content

    - by Marc
    Hi, I'm having a problem with the content of a combobox. On my userform, there are 3 comboboxes. Depending on the chosen item from combobox1, combobox2 should display either set 1 or set 2. The same will be happening with the content of combobox 3, which depends upon the combination of chosen items from combobox 1 and 2. However, I'm running into problems with combobox 2, which is always populated by set 2, even if I select the item in combobox 1 that should generate set 1 in the second combobox. This is the code I used: Private Sub UserForm_Initialize() With ComboBox1 .Clear .AddItem "In contrast" .AddItem "Eng?" .AddItem "Trillers" .AddItem "Natuur(lijk)" .AddItem "Muziektrafiek" End With If ComboBox1.Value = "In contrast" Then GoTo LineComboBox1Set1 End If If ComboBox1.Value = "Eng?" Then GoTo LineComboBox1set2 End If If ComboBox1.Value = "Trillers" Then GoTo LineComboBox1set2 End If If ComboBox1.Value = "Natuur(lijk)" Then GoTo LineComboBox1set2 End If If ComboBox1.Value = "Muziektrafiek" Then GoTo LineComboBox1set2 End If LineComboBox1Set1: With ComboBox2 .Clear .AddItem "Op verkenning" .AddItem "Gehoord? Gezien?" .AddItem "On stage" .AddItem "Creabende" .AddItem "Ingeblikt" End With LineComboBox1set2: With ComboBox2 .Clear .AddItem "Op verkenning" .AddItem "Gehoord? Gezien?" .AddItem "On stage" .AddItem "Creabende" .AddItem "Ingeblikt" .AddItem "Speak up" .AddItem "In de kijker" End With Can anyone help me on this one? Thanks a lot in advance!! Kind regards, Marc

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  • sql server 2005 - return single row when 2 records in right table

    - by Peanut
    Hi, I have two related sql server tables ... TableA and TableB. ***TableA - Columns*** TableA_ID INT VALUE VARCHAR(100) ***TableB - Columns*** TableB_ID INT TableA_ID INT VALUE VARCHAR(100) For every single record in TableA there are always 2 records in TableB. Therefore TableA has a one-to-many relationship with TableB. How could I write a single sql statement to join these tables and return a single row for each row in TableA that includes: a column for the VALUE column in the first related row in table B a column for the VALUE column in the second related row in table B? Thanks.

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  • What is the right pattern for a async data fetching method in .net async/await

    - by s093294
    Given a class with a method GetData. A few other clients call GetData, and instead of it fetching data each time, i would like to create a pattern where the first call starts the task to get the data, and the rest of the calls wait for the task to complete. private Task<string> _data; private async Task<string> _getdata() { return "my random data from the net"; //get_data_from_net() } public string GetData() { if(_data==null) _data=_getdata(); _data.wait(); //are there not a problem here. cant wait a task that is already completed ? if(_data.status != rantocompletion) _data.wait() is not any better, it might complete between the check and the _data.wait? return _data.Result; } How would i do the pattern correctly? (Solution) private static object _servertime_lock = new object(); private static Task<string> _servertime; private static async Task<string> servertime() { try { var thetvdb = new HttpClient(); thetvdb.Timeout = TimeSpan.FromSeconds(5); // var st = await thetvdb.GetStreamAsync("http://www.thetvdb.com/api/Updates.php?type=none"); var response = await thetvdb.GetAsync("http://www.thetvdb.com/api/Updates.php?type=none"); response.EnsureSuccessStatusCode(); Stream stream = await response.Content.ReadAsStreamAsync(); XDocument xdoc = XDocument.Load(stream); return xdoc.Descendants("Time").First().Value; } catch { return null; } } public static async Task<string> GetServerTime() { lock (_servertime_lock) { if (_servertime == null) _servertime = servertime(); } var time = await _servertime; if (time == null) _servertime = null; return time; }

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  • Display arabic text left to right in pdf using apache fop 0.95

    - by sangam
    Hi all. We are generating pdf using apache's xsl fo engine, namely fop 0.95. We have been successful in displaying arabic text from xml to pdf. But there is some problem in the direction of the displayed words. If we have 'sangam' (please assume that 'sangam' is in arabic) in xml, it gets displayed as 'magnas'. Has anyone encountered this before? What could be the solution? For example, I have one node in xml file like this: <empltmoblab>??????</empltmoblab> Now when displayed in pdf, this is displayed like this: ?????? This means I am getting just the reverse. I want it as it is in xml node. Thank you.

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