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• ScrolledWindow and wx.EVT_LEAVE_WINDOW

  - by Joril

  Hi everyone! I have a frame with a textctrl. When the mouse enters the textctrl (EVT_ENTER_WINDOW) I show a PopupWindow on top of the textctrl, and when the mouse leaves the popup (EVT_LEAVE_WINDOW) I hide it again. Everything works fine, except when inside the PopupWindow there's a ScrolledWindow with shown scrollbars. The EVT_LEAVE_WINDOW gets fired when I move the mouse on top of a scrollbar, so it looks like wxPython thinks the scrollbars are not part of the scrolledwindow.. :/ I tried binding the event to the popup or the scrollwindow itself, but nothing changes.. Is there a way I could get around this? Many thanks! (wxPython 2.8.8.0 on Xubuntu 8.10)

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• Ajax And REST: Can I send an ajax request to a REST service and recieve response?

  - by Morteza M.

  Hi everybody here, I want to use mootools and SqueezBox class to handle a request to a RESTful service. I don't want to use any server-side script. I am using AJAX. I send a request to the following url using GET method. http://www.idevcenter.com/api/v1/links/links-upcoming.json but I receive a 404 error. Is it because cross-site scripting? here is my code: SqueezeBox.initialize({handler:'url',ajaxOptions:{method:'GET'}}); $('a.modal').addEvent('click',function(e){ new Event(e).stop(); SqueezeBox.fromElement($('a.modal')); }); In Firebug console, sometimes 'aborted' is shown and sometimes '404'.what is wrong with that?

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• Can I populate multiple DropDownLists from one SqlDataSource using parameters?

  - by death_au

  Basically, I have four asp:DropDownLists and I wish to populate all of them from the same table, with certain conditions. For example, I have this data source: <asp:SqlDataSource ID="ReferenceDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:mrapConnectionString1 %> SelectCommand="SELECT * FROM [reference_data] WHERE ([component] = @component)" > <SelectParameters> <asp:Parameter DefaultValue="MB" Name="component" Type="String" /> </SelectParameters> </asp:SqlDataSource> And I want to know if I can change that component parameter to be different for each of my four dropdown lists. I tried adding the following code on the DataBinding event for my DropDown: ReferenceDataSource1.SelectParameters.Remove(ReferenceDataSource1.SelectParameters["component"]); ReferenceDataSource1.SelectParameters.Add("component", "MB"); But I ironically got a StackOverflowException...

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• Compatibility issues with <a> and calling a function(); across different web browsers

  - by Matthew

  Hi, I am new to javascript. I wrote the following function rollDice() to produce 5 random numbers and display them. I use an anchor with click event to call the function. Problem is, in Chrome it won't display, works fine in IE, in firefox the 5 values display and then the original page w/anchor appears! I am suspicious that my script tag is too general but I am really lost. Also if there is a display function that doesn't clear the screen first that would be great. diceArray = new Array(5) function rollDice() { var i; for(i=0; i<5; i++) { diceArray[i]=Math.round(Math.random() * 6) % 6 + 1; document.write(diceArray[i]); } } when I click should display 5 rand variables

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• MS-Access VBA: form_error vs on error

  - by dmr

  I am trying to set up error handling for a MS-Access application. The standard method to do this seems to be with an On Error statement in each subroutine/function. It seems simpler to me to use the Form_Error function to catch all the runtime errors in that form as opposed to an On Error statement for each sub/function called by an event on that form. (Obviously, for code in modules, there is no Form_Error function and therefore the only method is the On Error statement) What are the pros and cons of using On Error vs Form_Error?

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• Response.Redirect() will not redirect on Internet Explorer

  - by Amit

  Hi, I am using Response.Redirect("someurl",true); in the page_preInit event to redirect all the requests that come to a page. It works fine on Firexox, but if i access the page from internet explorer 7/8, it says page can not be found and will not redirect to new URL. Any idea why this happens?? Update: I tried giving a radom URL in the redirect such as google.com and it works fine. Actually the URL I am trying to redirect is not accessible on my machine, it is on another VPN. I guess IE will not change the URL on the addressbar if it can not access the URL. Firefox on the other hand changes the address on the address bar.

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• Why won't my anonymous function fire on grid.prerender?

  - by adam0101

  In my gridview I have fields for inserting a new record in the footer. In my objectdatasource selecting event if no records came back I bind a single mock row to force the footer to show so they can still add records. Since the row does not contain real data I hide the row. ... If result.ItemCount = 0 Then result = mockRow AddHandler mygridview.PreRender, AddressOf HideRow End If End Sub Private Sub HideRow(ByVal sender as Object, ByVal e as EventArgs) mygridview.Rows(0).Visible = False End Sub This works fine. However, I'd like to condense it like this: ... If result.ItemCount = 0 Then result = mockRow AddHandler mygridview.PreRender, Function() mygridview.Rows(0).Visible = False End If End Sub This compiles fine, but the row doesn't get hidden. Can anyone tell me why my anonymous function isn't getting hit?

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• How to position an element so that it does not flow off the visible screen

  - by rjray

  I am creating pseudo-tooltips on a page that has a lot of "a" and "span" elements that have these tips associated with them. Everything in the creation of the element is fine, and it displays fine. However, since this is a page with a lot of data, as you get towards the bottom of the visual area the tooltips start to flow past the bottom edge of the window. My initial attempt to compensate for this with window.innerWidth/innerHeight didn't come out too well. I'm using jQuery for DOM manipulation (but not jQuery UI). Given the event itself, and the height and width of the tooltip (which I can get with getBoundingClientRect()), how can I position this element so that the bottom of the tooltip is never below the edge of the window?

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• What is the equivalent to Java's canvas object in C#?

  - by Winston

  I'm working on creating a basic application that will let a user draw (using a series of points) and I plan to do something with these points. If this were Java, I think I would probably use a canvas object and some Java2D calls to draw what I want. All the tutorials I've read on C#/Drawing involve writing your own paint method and adding it to the paint event for the form. However, I'm interested in having some traditional Form controls as well and I don't want to be drawing over them. So, is there a "Canvas" object where I can constrain what I'm drawing on? Also, is WinForms a poor choice given this use case? Would WPF have more features that would help enable me to do what I want? Or Silverlight?

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• php, mySQL - how to create a table?

  - by user296516

  Hi guys, I have written a code that should check weather there is a table called imei.$addimei and, if not, create it... $userdatabase = mysqli_connect('localhost', 'root', 'marina', 'imei'); ... $result = mysqli_query($userdatabase, "SELECT * FROM imei".$addimei."" ); if ( !$result ) { echo('creating table...'); /// if no such table, make one! mysql_query ( $userdatabase, 'CREATE TABLE imei'.$addimei.'( ID int NOT NULL AUTO_INCREMENT, PRIMARY KEY(ID), EVENT varchar(15), TIME varchar(25), FLD1 varchar(35), FLD2 varchar(35), IP varchar(25), )' ); } Yet the CREATE TABLE somehow doesn't seem to work. Warning: mysql_query() expects parameter 1 to be string, object given in C:\xampp\xampp\htdocs\mobi\mainmenu.php on line 564 Any idea's what wrong? Thanks!

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• .net Studio Local Database

  - by testerwpf

  Hello everyone, i am designing a local database in .net with wpf as gui. I have added a new database, and added a new table. Through the TableAdapter i generated 2 statements ( 1 statement is a select stmt and 1 is a insert) , i insert name and firstname (id is auto generated). It works fine, i can display the table in a datagrid (wpf toolkit) and also add new items (name,firstname), when i close and start the application everything is fine (data in table is stored) BUT when i try to preview data in my database dataset (where my Adapters exist) , no data is displayed and then the table gets deleted.. why? public partial class MainWindow : Window { public MainWindow() { this.InitializeComponent(); PlayerTableAdapter objPlayerTableAdapter = new PlayerTableAdapter(); objDataGridResults.ItemsSource = objPlayerTableAdapter.GetDataAllPlayer(); } //Button Event onClick private void m_voidAddPlayer(object sender, System.Windows.RoutedEventArgs e) { PlayerTableAdapter objPlayerTableAdapter = new PlayerTableAdapter(); objPlayerTableAdapter.InsertQueryPlayer(objTextBoxPlayerName.Text.ToString(), objTextBoxPlayerFirstName.Text.ToString()); objDataGridResults.ItemsSource = objPlayerTableAdapter.GetDataAllPlayer(); } }

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• struts validation problem in IE

  - by user265201

  I am using Struts 2.1.8 and facing validation problem in IE. I am getting the following error An exception occurred: Error. Error message: Invalid argument. I tried out to figure out the cause and found the following. My generated javascript code is: field = form.elements['district.name']; var error = "Enter only alphabets for district"; if (continueValidation && field.value != null && !field.value.match("^[a-zA-Z ]*$")) { addError(field, error); errors = true; } I tried to mock up by putting the same code in a function and calling it in onclick event. The method addError() throws the exception and the reason is field variable. If I change it to field[0], it works fine. How to fix this error?

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• Windows.Forms.Timer instance and UI threads

  - by David Rutten

  I have a custom control whose primary purpose is to draw data. I want to add a ScheduleUpdate(int milliSeconds) method to the control which will force an update X milliseconds from now. Since this is all GUI land, I should be using a Windows.Forms.Timer, but how does this timer instance know which thread it belongs to? What if ScheduleUpdate() is called from a non-UI thread? Should I construct the timer in the Control constructor? Or perhaps the Load event? Or is it safe to postpone construction until I'm inside ScheduleUpdate()? I know there are some very similar questions about this already, but I don't have a Timer component on my control, I'm constructing it on a when-it's-needed basis.

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• When should I observe javascript events on window vs. document vs. document.body?

  - by brahn

  I'm using prototype.js for my web app, and I have everything running on chrome, safari, and firefox. I am now working on IE8 compatibility. As I've been debugging in IE, I've noticed that there are javascript events for which I have previously set an observer on the window, e.g. Event.observe(window, eventType, function () {...}); (where eventType might be "dom:loaded", "keypress", etc.) and it works just fine in Chrome/Safari/Firefox. However, in IE the observer never fires. In at least some cases I could get this to work on IE by instead placing the observer on something other than window, e.g. document (in the case of "dom:loaded") or document.body (in the case of "keypress"). However, this is all trial-and-error. Is there some more systematic way to determine where to place these observers such that the results will be cross-browser compatible? Thanks!

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• Is MonoTouch worth the cost or should I just learn Objective-C?

  - by jamesaharvey

  After sitting through a session today on Mono at a local .Net event, the use of MonoTouch was 'touched' upon as an alternative for iPhone development. Being very comfortable in C# and .Net, it seems like an appealing option, despite some of the quirkiness of the Mono stack. However, since MonoTouch costs $400, I'm somewhat torn on if this is the way to go for iPhone development. Anyone have an experience developing with MonoTouch and Objective-C, and if so is developing with MonoTouch that much simpler and quicker than learning Objective-C, and in turn worth the $400?

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• Drawing a continuous rectangle

  - by JAYMIN

  Hi..i m currently working on visual c++ 2008 express edition.. in my project i have a picturebox which contains an image, now i have to draw a rectangle to enaable the user to select a part of the image.. I have used the "MouseDown" event of the picturebox and the below code to draw a rectangle: Void pictureBox1_MouseDown(System::Object^ sender, Windows::Forms::MouseEventArgs^ e) { Graphics^ g = pictureBox1-CreateGraphics(); Pen^ pen = gcnew Pen(Color::Blue); g-DrawRectangle( pen , e-X ,e-Y,width,ht); } now in the "DrawRectangle" the arguments "width" and "ht" are static, so the above code results in the drawing of a rectangle at the point where the user presses the mouse button on the image in picturebox... i want to allow the user to be able to drag the cursor and draw a rectangle of size that he wishes to.. Plz help me on this.. Thanx..

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• Jetty 7 Continuations: How to *not* redispatch the request?

  - by Don Werve

  I'm using Jetty 7 continuations to implement some asynchronous processing. What I'm trying to do is start off the continuation (via .suspend()), and then hand the continuation off to some other object that will compose the response, which works fine. But Jetty keeps redispatching the response (with isInitial = false) to the servlet, and I don't want or need that, because the response is being dealt with by some other object. So, I'd like to find a way to explicitly not redispatch the request on timeout or expire, because I'm using an event-driven series of callbacks to actually produce the response.

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• How do I echo the number of items in an array?

  - by Joel

  A total newbie question I know. I'm sing Zend framework, and sending an array from the controller: $this->view->googleArray = $viewFeedArray; In the view, I have a foreach loop that is populating a table with the array contents. <?php foreach($this->googleArray as $row) { ?> <tr> <td><?php echo $row['when']; ?></td> ... ... </tr> <?php } ?> It all works fine. At the top of the table, I want to list the number of items in the array. Something like (which doesn't work): <?php echo $this->googleArray->totalResults; ?> event(s) found How would I do that? Thanks!

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• Catch PyGTK TreeView reorder

  - by mkotechno

  I have a simple gtk.TreeView with a gtk.ListStore model and set_reorderable(True), I want to catch the signal/event emited when the user reorder through drag&drop the list, but the documentation does not help much: "The application can listen to these changes by connecting to the model's signals" So I tried to connect the model (ListStore) signals... but surprise! ListStore has no signals, so you are dispatched to TreeModel signals, then I tried to connect with the TreeModel "rows-reordered" signal with no lucky. How should I catch the list reorder performed by the user?

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• Map Reduce Frameworks/Infrastructure

  - by Johannes Rudolph

  Map Reduce is a pattern that seems to get a lot of traction lately and I start to see it manifest in one of my projects that is focused on an event processing pipeline (iPhone Accelerometer and GPS data). I needed to built a lot of infrastructure for this project, in fact it overweighs the logic code interacting with it by 2x. Some of the components I built where EventProcessors (with in- and output plus buffering, timing etc.), multiplexers and aggregators. This leads me to my question what the "common" required infrastrucutre for map reduce is. Since I am working with .Net a lot I can see map reduce infrastructure built into the Framework and language constructs. Functional languages support this paradigm per se. It seems every language can be used with map reduce, some have better support than others, others again are built around that concept (e.g. Go). And there are Frameworks like Apache Hadoop to support map reduce.

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• Blinking an item. (Jquery FadeIn FadeOut ?)

  - by 0plus1

  I have two divs that I want to make blink at the same time until the user hovers the mouse on one of them. var shouldiblink = '1'; function mrBlinko(divid){ while (shouldiblink =='1') { $("#"+divid).fadeIn(100).fadeOut(300); } $(document).ready(function(){ mrBlinko("mydiv1"); mrBlinko("mydiv2"); } The I'll have an hover event that sets shouldiblink to '0'. Problem is that the loops starts as soon as the page is ready and the browser crashes. I'm stuck with this solution and I can't think of an alternative right now. Can you help me? Thank you very much.

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• JQuery live function doesn't work

  - by Sayem Ahmed

  I have some text boxes, all of which have the same class "addExamNumberBoxStyle". Now I want to bind a "blur" handler to each one of these. When I use direct "blur" event like below - $('.addExamNumberBoxStyle').blur(function() { alert("Hello World"); }); it works perfectly. But when I use "live" function like below - $('.addExamNumberBoxStyle').live('blur', function() { alert("Hello World"); }); it does not work. Why?

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• AutoCompleteExtender positioning menu incorrectly when scrolled

  - by Colin

  We have an AutoCompleteExtender linked to a TextBox. Both controls are placed inside an UpdatePanel, and the UpdatePanel is displayed as a pop-up dialog using a Javascript library (Ext.BasicDialog). The pop-up is a div on the page, not a separate window. The problem is that when the user scrolls inside the pop-up, the AutoCompleteExtender shows its menu in the wrong place. It looks like it is taking the visible distance from the top of the popup and positioning the menu from the top of the inner html of the popup (which is not visible) We are using Version 1.0.20229.20821 of the AjaxControlToolkit, and we are targetting ASP.NET Framework vewrsion 2.0. I have tried to fix the menu by attaching the following Javascript to the OnClientShown event, but it pretty much does the same thing: function resetPosition(object, args) { var tb = object._element; // tb is the associated textbox. var offset = $('#' + tb.id).offset(); var ex = object._completionListElement; if (ex) { $('#' + ex.id).offset(offset); } }

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• The Reason of Service Termination

  - by Mariusz

  I use a service application I created in Delphi. My problem is that it is sometimes terminated by the operating system and I don't know why this happens. When I go the the system events, I can find a piece of information like this one: Event ID: 7034, The [...] service terminated unexpectedly. It has done this [...] time(s). I know you can't give me an answer why this happens, but could you please give me a clue what to pay attention to to find the reason of that behaviour? For instance what kind of exceptions could make the OS close an application. Thank you in advance.

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• Flex ItemRenderer/Editor ComboBox Issue...Puhleezz Help

  - by Mohit

  Hi EveryOne Beginner in Flex ...Even worse with item renderers... Have managed to add a Combobox to a datagrid using a itemEditor... I want to change the options in a combo box depending on the value selected by the user on a previous combo.. In the combo box i want to display a certain value (Model Name ) but for quering a table i'll pass the corresponding code of the model :(... sounds simple enough ..unfortunately not able to implement it I have found this problem on this site but the solution seems an overkill for my "small" problem..was hoping if anyone could guide me towards a more simpler solution... My xml comes as <item><mstValue>CH1</mstValue><mstRemarks>CARRIER</mstRemarks></item> <item><mstValue>CH2</mstValue><mstRemarks>TRANS</mstRemarks></item> <item><mstValue>CH3</mstValue><mstRemarks>YORK</mstRemarks></item> Now i have been able to show the values in a combo .if user selects CARRIER i want to pass CH1(dont know how to do it with itemeditors)...and then fetch values corresponding to CH1 from a table (second part of the problem)...in the sample below i used this.parentDocument.modelComboChanged(this.selectedItem) to pass the selected value ...instedd i need to pass the code for it which comes from the xml...Pls help this making me go crazy.... <mx:DataGrid id="chillerGrid" dataProvider="{chillerGridDp}" editable="true" itemRollOver="{ComponentUtil.setTooltip(event,this)}" itemRollOut="ComponentUtil.resetTooltip(event)" width="70%" height="160"> <mx:columns> <mx:DataGridColumn id="test" headerText="Model" dataField="model" editorDataField="value" editable="true" backgroundColor="#f4f2bd" width="100" > <mx:itemEditor> <mx:Component> <mx:ComboBox creationComplete="{if(text=='')selectedIndex=0;if(data &amp;&amp; data.contactType!=undefined)text=data.contactType.text();}" change="{if(text == ''){selectedIndex=0;if(data &amp;&amp; data.contactType!=undefined)text=data.contactType.text();};this.parentDocument.modelComboChanged(this.selectedItem)}" dataProvider="{this.parentDocument.arrColl1}" text="mstRemarks" labelField="mstRemarks" editable = "false" > <!--<mx:dataProvider > <mx:String></mx:String> <mx:String>Model1</mx:String> <mx:String>Model2</mx:String> <mx:String>Model3</mx:String> <mx:String>Model4</mx:String> <mx:String>Model5</mx:String> </mx:dataProvider>--> </mx:ComboBox> <!--<components:ComboBoxIn dataProvider="{this.parentDocument.arrColl1}" labelField="mstRemarks" /> --> </mx:Component> </mx:itemEditor> </mx:DataGridColumn> <mx:DataGridColumn headerText="Make" dataField="make" editorDataField="value" editable="true" backgroundColor="#f4f2bd" width="100" > <mx:itemEditor> <mx:Component> <mx:ComboBox creationComplete="{if(text=='')selectedIndex=0;if(data &amp;&amp; data.contactType!=undefined)text=data.contactType.text();}" change="{if(text == ''){selectedIndex=0;if(data &amp;&amp; data.contactType!=undefined)text=data.contactType.text();} }" labelField="@label" editable = "false" > <mx:dataProvider> <mx:String></mx:String> <mx:String>Carrier</mx:String> <mx:String>York</mx:String> <mx:String>Trane</mx:String> </mx:dataProvider> </mx:ComboBox> </mx:Component> </mx:itemEditor> </mx:DataGridColumn> <mx:DataGridColumn headerText="Chillers" dataField="chillers" width="200" editable="true"> <mx:itemEditor> <mx:Component> <mx:TextInput maxChars="49" /> </mx:Component> </mx:itemEditor> </mx:DataGridColumn> </mx:columns> </mx:DataGrid>

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