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  • Is it possible to template a template in WPF XAML?

    - by imekon
    Is it possible to use templates within templates? For instance, I have the following two templates: <HierarchicalDataTemplate x:Key="RecursiveTemplate" ItemsSource="{Binding Children}"> <StackPanel Margin="1" Orientation="Horizontal"> <Ellipse Fill="DarkGreen" Width="14" Height="14"/> <TextBlock MouseDown="OnTreeMouseDown" TargetUpdated="OnTargetUpdated" Visibility="{Binding Editing, Converter={StaticResource visibilityInverter}}" Margin="5" Text="{Binding Name}"/> <TextBox PreviewKeyDown="OnTreeKeyDown" Visibility="{Binding Editing, Converter={StaticResource visibilityConverter}}" Margin="2" Text="{Binding Name}"/> </StackPanel> </HierarchicalDataTemplate> <HierarchicalDataTemplate x:Key="ContainerTemplate" ItemsSource="{Binding Children}"> <StackPanel Margin="1" Orientation="Horizontal"> <Ellipse Fill="DarkBlue" Width="14" Height="14"/> <TextBlock MouseDown="OnTreeMouseDown" TargetUpdated="OnTargetUpdated" Visibility="{Binding Editing, Converter={StaticResource visibilityInverter}}" Margin="5" Text="{Binding Name}"/> <TextBox PreviewKeyDown="OnTreeKeyDown" Visibility="{Binding Editing, Converter={StaticResource visibilityConverter}}" Margin="2" Text="{Binding Name}"/> </StackPanel> </HierarchicalDataTemplate> There's a section of identical XAML: <TextBlock MouseDown="OnTreeMouseDown" TargetUpdated="OnTargetUpdated" Visibility="{Binding Editing, Converter={StaticResource visibilityInverter}}" Margin="5" Text="{Binding Name}"/> <TextBox PreviewKeyDown="OnTreeKeyDown" Visibility="{Binding Editing, Converter={StaticResource visibilityConverter}}" Margin="2" Text="{Binding Name}"/> Is it possible to move that to a resource and refer to it by name, rather than repeat it?

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  • java 2D and swing

    - by user384706
    Hi, I have trouble understanding a fundamental concept in Java 2D. To give a specific example: One can customize a swing component via implementing it's own version of the method paintComponent(Graphics g) Graphics is available to the body of the method. Question: What is exactly this Graphics object, I mean how it is related to the object that has the method paintComponent? Ok, I understand that you can do something like: g.setColor(Color.GRAY); g.fillOval(0, 0, getWidth(), getHeight()); To get a gray oval painted. What I can not understand is how is the Graphics object related to the component and the canvas. How is this drawing actually done? Another example: public class MyComponent extends JComponent { protected void paintComponent(Graphics g) { System.out.println("Width:"+getWidth()+", Height:"+getHeight()); } public static void main(String args[]) { JFrame f = new JFrame("Some frame"); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setSize(200, 90); MyComponent component = new MyComponent (); f.add(component); f.setVisible(true); } } This prints Width:184, Height:52 What does this size mean? I have not added anything to the frame of size(200,90). Any help on this is highly welcome Thanks

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  • why isn't my validator working?

    - by Lina
    hi, can anybody tell me why is the following code not working? <script type="text/javascript" src="../../Scripts/jquery.js"></script> <script type="text/javascript" src="../../Scripts/jquery.validate.js"></script> <script type="text/javascript"> $(function() { // validate contact form on keyup and submit $("#myform").validate({ //set the rules for the fild names rules: { hour: { required: true, minlength: 2, range:[0,23] }, minute: { required: true, minlength: 2, range:[0,60] }, }, //set messages to appear inline messages: { hour: "Please enter a valid hour", minute: "Please enter a valid minute" } }); }); </script> <style type="text/css"> .error { color: red; font: 12pt verdana; padding-left: 10px } </style> <form id="myform" method="" action=""> <input id="hour" type="text" name="hour" style="width:30px; text-align:center;"></input> : <input id="minute" type="text" name="minute" style="width:30px; text-align:center;"></input> <br/> <input type="submit" value="Validate!" /> </form> thanks a million in advance, Lina

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  • does actionscript addChild require a display object first

    - by touB
    I'm trying to move away from mxml to actionsctipt. I have a <s:Rect> that I've created and set its properties, but having trouble adding it. var aRect:Rect = new Rect(); //set properties like aRect.x, aRect.y, aRect.width, aRect.height //tried adding it various ways addChild(aRect); Application.addChild(aRect); Application.application.addChild(aRect); stage.addChild(aRect); But I keep getting the error 1067: Implicit coercion of a value of type spark.primitives:Rect to an unrelated type flash.display:DisplayObject Originally in the mxml, it was right inside <s:Application> not nested inside anything <s:Application> <s:Rect id="aRect" x="10" y="10" width="15%" height="15%"> //then fill code here, removed for readability </s:Rect> </s:Application> What's the deal, I thought actionscript would be nicer than mxml.

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  • MVVM- How can I bind to a property, which is not a DependancyProperty?

    - by highone
    I have found this question http://stackoverflow.com/questions/2245928/mvvm-and-the-textboxs-selectedtext-property. However, I am having trouble getting the solution given to work. This is my non-working code: View: SelectedText and Text are just string properties from my ViewModel. <TextBox Text="{Binding Path=Text, UpdateSourceTrigger=PropertyChanged}" Height="155" HorizontalAlignment="Left" Margin="68,31,0,0" Name="textBox1" VerticalAlignment="Top" Width="264" AcceptsReturn="True" AcceptsTab="True" local:TextBoxHelper.SelectedText="{Binding SelectedText, UpdateSourceTrigger=PropertyChanged}" /> <TextBox Text="{Binding SelectedText, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" Height="154" HorizontalAlignment="Left" Margin="82,287,0,0" Name="textBox2" VerticalAlignment="Top" Width="239" /> TextBoxHelper public static class TextBoxHelper { #region "Selected Text" public static string GetSelectedText(DependencyObject obj) { return (string)obj.GetValue(SelectedTextProperty); } public static void SetSelectedText(DependencyObject obj, string value) { obj.SetValue(SelectedTextProperty, value); } // Using a DependencyProperty as the backing store for SelectedText. This enables animation, styling, binding, etc... public static readonly DependencyProperty SelectedTextProperty = DependencyProperty.RegisterAttached( "SelectedText", typeof(string), typeof(TextBoxHelper), new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault, SelectedTextChanged)); private static void SelectedTextChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e) { TextBox tb = obj as TextBox; if (tb != null) { if (e.OldValue == null && e.NewValue != null) { tb.SelectionChanged += tb_SelectionChanged; } else if (e.OldValue != null && e.NewValue == null) { tb.SelectionChanged -= tb_SelectionChanged; } string newValue = e.NewValue as string; if (newValue != null && newValue != tb.SelectedText) { tb.SelectedText = newValue as string; } } } static void tb_SelectionChanged(object sender, RoutedEventArgs e) { TextBox tb = sender as TextBox; if (tb != null) { SetSelectedText(tb, tb.SelectedText); } } #endregion } What am I doing wrong?

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  • Xpages conditional validation: make a field required only if report is being submitted as final

    - by Randal Oulton
    Doing server-side Xpages conditional validation.... I want the follow validation to kick in only if the Report.Status field = 'Final'. (The users are allowed to submit the report as draft and come back and finish it later, when they submit as draft we don't want to make the fields required.) How would I go about this? <xp:inputTextarea style="width:75%" value="#{Report.Agenda}" id="Agenda"> <xp:this.validators> <xp:validateRequired message="Question 1 can't be blank"> </xp:validateRequired><!-- (1) --> </xp:this.validators> </xp:inputTextarea> Tried this, didn't work, was still required even if Status field not set to final :{ <xp:inputTextarea style="width:75%" value="#{Report.Agenda}" id="Agenda" defaultValue="5 year agenda"> <xp:this.validators> <xp:validateRequired message="Question 1 can't be blank"></xp:validateRequired><!-- (1) --> <xp:validateExpression message="Question 1 can't be blank"> <xp:this.expression><![CDATA[#{javascript: if (Report.getItemValueString('Status')!='Final') { return true; } else { return false; } }]]></xp:this.expression> </xp:validateExpression> </xp:this.validators> </xp:inputTextarea>

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  • iTextSharp Conversion from Table to pdfPTable

    - by Al.
    I have an old ASP.NET project originally done in ASP.NET 1.1 w/ iText.NET and converted to .NET 2.0 and iTextSharp 4.1.6.0. It uses lots of Table (I'm assuming pdfptable wasn't an option at the time it was created.) I am trying to convert this code to use the latest iTextSharp 5.0.0 dll and now see Table and cell have been removed. I started converting it anyway and soon found there is no equivalent to a lot of the functionality that Table offered. Mainly AddCell no longer allows a col,row setting. There are literally thousands of these calls in this code and the posibility of changing it to generate linearly row by row looks hopeless at the moment. The current code looks something like: Dim myTable As New Table(NumReq + 2, IngDS.Tables(0).Rows.Count + 3) myTable.SetWidths(Width) myTable.Width = 100 myTable.Padding = 2 myCell = New Cell(New Phrase("Some Text", New iTextSharp.text.Font(iTextSharp.text.Font.HELVETICA, 8, iTextSharp.text.Font.NORMAL, iTextSharp.text.Color.BLACK))) myCell.SetHorizontalAlignment(Element.ALIGN_RIGHT) myCell.GrayFill = 0.75 myTable.AddCell(myCell, Row, Col) myCell = New Cell(New Phrase("Other Text",New iTextSharp.text.Font(iTextSharp.text.Font.HELVETICA, 8, iTextSharp.text.Font.NORMAL, iTextSharp.text.Color.BLACK))) myCell.GrayFill = 0.75 myTable.AddCell(myCell, Row, Col+1) Before I embark down that road I was hoping someone would be able to point me in a direction that I'm just totally missing that will make this conversion much more simple. Any ideas? Thanks.

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  • Show image with link based on first directory with Javascript

    - by Nestorete
    Hi, i need some help please, i want to show an image on my Page depending of the first directory of the URL. Example: In Any of this URLs will show the image1.jpg www.mysite.com/audio/amplifiers/400wats.html www.mysite.com/audio/ www.mysite.com/audio/amplifiers/ In any of this others will show the image2.jpg www.mysite.com/video/spots/40wats.html www.mysite.com/video/amplifiers/400wats.html www.mysite.com/video/lighting/laser.html www.mysite.com/video/laser/ At the moment i can show the image only if the url is only the first directory, bu no in the internal directory or documents. This is the script that i'm using right now: <script type="text/javascript"> switch (location.pathname) { case "/audio/": document.write("From Web<BR>") break case "/video/": document.write('<A HREF="slides.htm" target="_blank"><IMG SRC="/adman/banners/joinvip.gif" WIDTH=728 HEIGHT=90 BORDER=0></A>') break default: document.write('<A HREF="http://www.apple.com" target="_blank"><IMG SRC="http://www.amd.com/us-en/assets/content_type/DownloadableAssets/NEW_PIB_728x90.gif" WIDTH=728 HEIGHT=90 BORDER=0></A>') break } </script> Thank you

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  • Show image with link based on first directory with Javascript

    - by Nestorete
    Hi, i need some help please, i want to show an image on my Page depending of the first directory of the URL. Example: In Any of this URLs will show the image1.jpg www.mysite.com/audio/amplifiers/400wats.html www.mysite.com/audio/ www.mysite.com/audio/amplifiers/ In any of this others will show the image2.jpg www.mysite.com/video/spots/40wats.html www.mysite.com/video/amplifiers/400wats.html www.mysite.com/video/lighting/laser.html www.mysite.com/video/laser/ At the moment i can show the image only if the url is only the first directory, bu no in the internal directory or documents. This is the script that i'm using right now: <script type="text/javascript"> switch (location.pathname) { case "/audio/": document.write("From Web<BR>") break case "/video/": document.write('<A HREF="slides.htm" target="_blank"><IMG SRC="/adman/banners/joinvip.gif" WIDTH=728 HEIGHT=90 BORDER=0></A>') break default: document.write('<A HREF="http://www.apple.com" target="_blank"><IMG SRC="http://www.amd.com/us-en/assets/content_type/DownloadableAssets/NEW_PIB_728x90.gif" WIDTH=728 HEIGHT=90 BORDER=0></A>') break } </script> Thank you

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  • Flex : How to link data to a datagrid ?

    - by Tristan
    Hello, I'm following flex tutorials but i'm not doing exactly as they do, so : What i want I have an input text, with a button 'search'. I want when this button is clicked that the data returned by the function search are displayed in the datagrid. What i have : The text input : <s:TextInput includeIn="DetailServeurs" x="58" y="361" width="209" id="txt_search" text="Default text" focusIn="txt_search_focusInHandler(event)"/> a Search button : <s:Button includeIn="DetailServeurs" x="275" y="361" label="Rechercher" id="btn_rechercher" click="btn_rechercher_clickHandler(event)"/> a clickhandler for this search button : protected function btn_rechercher_clickHandler(event:MouseEvent):void { if(txt_search.text != ""){ getServeurByNameResult.token = serveurService.getServeurByName(txt_search.text); } } and a datagrid : <mx:DataGrid includeIn="DetailServeurs" x="30" y="124" width="1002" height="179" id="dataGrid" dataProvider="{getServeurByNameResult.lastResult}"> <mx:columns> <mx:DataGridColumn headerText="GSP_nom" dataField="GSP_nom"/> <mx:DataGridColumn headerText="port" dataField="port"/> ........ </mx:columns> </mx:DataGrid> So how can i display the results in the datagrid ? Thanks ! ;)

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  • Looping HTML5 audio on the iPhone

    - by Peeps
    I'm trying to make a HTML5 webapp that simply plays a sound over and over and over again, on my iPhone. I don't know any Obj-C to do it natively. What I have works fine, but the sound only plays once: <!DOCTYPE html> <html> <head> <title>noisemaker!</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <meta name="viewport" content="maximum-scale=1, minimum-scale=1, width=device-width, user-scalable=no" /> <meta name="apple-mobile-web-app-capable" content="yes" /> </head> <body> <audio src="noise.mp3" autoplay controls loop></audio> </body> </html> Is there a way to either bypass the QuickTime audio screen and loop it in the webpage, or get the QuickTime audio screen to loop the sound?

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  • MVVM Light - master / child views and dependency properties

    - by Carl Dickinson
    I'm getting an odd problem when implementing a master / child view and custom dependency properties. Within my master view I'm binding the view model declaratively in the XAML as follows: DataContext="{Binding MainViewModelProperty, Source={StaticResource Locator}}" and my MainViewModel is exposing an observable collection which I'm binding to an ItemsControl as follows: <ItemsControl ItemsSource="{Binding Lists}" Height="490" Canvas.Top="10" Width="70"> <ItemsControl.ItemTemplate> <DataTemplate> <Canvas> <local:TaskListControl Canvas.Left="{Binding ListLeft}" Canvas.Top="{Binding ListTop}" Width="{Binding ListWidth}" Height="{Binding ListHeight}" ListDetails="{Binding}"/> </Canvas> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> TaskListControl in turn declares and bind to it's ViewModel and I've also defined a dependency property for the ListDetails property. The ListDetails property is not being set and if I remove the declarative reference to it's viewmodel the dependency property's callback does get fired. Is there a conflict with declaratively binding to viewmodels and definig dependency properties? I really like MVVM Light's blendability and want to perserve with this problem so any help would be apprectiated. If you'd like to receive the source for my project then please ask

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  • Calling function using 'new' is less expensive than without it?

    - by Matthew Taylor
    Given this very familiar model of prototypal construction: function Rectangle(w,h) { this.width = w; this.height = h; } Rectangle.prototype.area = function() { return this.width * this.height; }; Can anyone explain why calling "new Rectangle(2,3)" is consistently 10x FASTER than calling "Rectangle(2,3)" without the 'new' keyword? I would have assumed that because new adds more complexity to the execution of a function by getting prototypes involved, it would be slower. Example: var myTime; function startTrack() { myTime = new Date(); } function stopTrack(str) { var diff = new Date().getTime() - myTime.getTime(); println(str + ' time in ms: ' + diff); } function trackFunction(desc, func, times) { var i; if (!times) times = 1; startTrack(); for (i=0; i<times; i++) { func(); } stopTrack('(' + times + ' times) ' + desc); } var TIMES = 1000000; trackFunction('new rect classic', function() { new Rectangle(2,3); }, TIMES); trackFunction('rect classic (without new)', function() { Rectangle(2,3); }, TIMES); Yields (in Chrome): (1000000 times) new rect classic time in ms: 33 (1000000 times) rect classic (without new) time in ms: 368 (1000000 times) new rect classic time in ms: 35 (1000000 times) rect classic (without new) time in ms: 374 (1000000 times) new rect classic time in ms: 31 (1000000 times) rect classic (without new) time in ms: 368

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  • jQuery Colorbox Iframe and Selector

    - by Joker
    I have this: $("a.money").colorbox({href:$("a.money").attr("href")+" div#content"}); Which opens an overlay but only of the content within the #content selector. If I add iframe:true, this will no longer work. Is there a way to get it to work with an iframe? Edit: The closest I could get it to work was by doing this: $("a.money").colorbox({iframe:true, width:700, height:425, onComplete: function() { alert('test'); $test = $("#cboxLoadedContent iframe").contents().find("#content").html(); $("#cboxLoadedContent iframe").contents().find("#container").html($test); } }); Although without the alert it doesn't appear to work, I looked into that and I think I need to use .live(), which led me to trying this: $('a.money').live('click', function() { url = this.href; // this is the url of the element event is triggered from $.fn.colorbox({href: url, iframe:true,width:700, height:425, onComplete: function() { $test = $("#cboxLoadedContent iframe").contents().find("#content").html(); $("#cboxLoadedContent iframe").contents().find("#container").html($test); } }); return false; }); Didn't work, I still needed to add an alert to make it work. In case you might be wondering what I'm trying to do. The webpage is loaded in the iframe, with all the elements in the #container, so that includes #header, #sidebars, but I only want to show the #content inside the iframe. However, this led me to another problem I realized. Assuming I got this to work without the alert, it will only work for that initial page. For example, if I loaded up a form in the iframe, after submitting the form, I would once again see the whole layout instead of just the #content portion. Is it possible to continue only showing the #content portion of the page upon further navigation?

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  • DIVS over flash movies in Internet Explorer

    - by drew
    The age old question... why the hell doesn't a div positioned over a flash object stay on top with z-index. I have found the answer in the past, but it's been so long, I can't seem to get it. My flash movie is in a div floating left: <div id="flash"> <object width="614" height="289"> <param name="movie" value="images/75.swf"> <param name="wmode" value="transparent"> <embed src="images/75.swf" width="614" height="289" wmode"transparent"> </embed> </object> </div> My css for the div that needs to be on top is: .menu ul li:hover ul li a:hover { background:#5a3f2d; color:#FFF; z-index: 9999; I cannot get it to show above the flash movie in ie6 or ie8. I know this is old school but I'm frustrated! Does my nav div need to have an absolute position? Is that why it doesn't work? Example is here. Hover over the first link on the right: "CUSTOMER SERVICE" Thanks all :)

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  • Firefox 3.6 and CSS difference from previous versions of Firefox 3.5 and back?

    - by American Yak
    So, in upgrading to Firefox 3.6, the CSS broke on input boxes. The padding has increased -- it might also be the font-size is somehow behaving different. Wondering if anyone else has seen this problem yet. Can't quite figure it out. HTML CODE: <form> <fieldset> <label for="inputField">Label</label> <input type="text" id="inputField" /> </fieldset> </form> CSS CODE: form fieldset label { display:block; font-size:1.2em; font-weight:bold; padding:12px 9px; } #jumptoBox fieldset input { background: url("../images/input.png") no-repeat scroll left top transparent; font-size: 1.2em; padding: 4px 5px 16px; width: 99px; height: 29px; } (Image dimensions: 109 width x 34 height) So one thing to note, the fix (as outlined below) includes removing the height, or at least setting it to auto, and then compensating for it by using padding (a fix that bothers me on many levels, but we'll set that aside for now). BUT webkit seems to have its own problems with this now, since it wants to center the text vertically (ignoring any evidence of line-height) according to the height of everything. In other words, if you want the text vertically closer to the top, I haven't been able to figure out a way to do that. Ideas?

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  • CSS: Margin-top when parent's got no border

    - by Manny
    Hi, As you can see in this picture, I've got an orange div inside a green div with no top border. The orange div has a 30px top margin, but it's also pushing the green div down. Of course, adding a top border will fix the issue, but I need the green div to be top borderless. What could I do? html: <div class="header">Top</div> <div class="body"> <div class="container">Box</div> </div> <div class="foot">Bottom</div> css: .body { border: 1px solid black; border-top: none; border-bottom: none; width: 120px; height: 112px; background-color: lightgreen; } .body .container { background-color: orange; height: 50px; width: 50%; margin-top: 30px; } Thanks

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  • Buttons OnClick Event not firing when it causes a textboxes onChange event to fire first

    - by user48408
    I have a few textboxes and button to save their values on a webpage. The onchange event of the textboxes fires some js which adds the changed text to a js array. The ok button when clicked flushes this to the database via a webservice. This works fine except when the onchange event is caused by clicking the ok button. In this scenario the onchange of the textboxes still fires but the onClick event of the button does not. Any ideas? textboxes look something like <input name="ctrlJPView$tbcTabContainer$Details$JP_Details_Address2Text" type="text" value="test" id="ctrlJPView_tbcTabContainer_Details_JP_Details_Address2Text" onchange="addSaveDetails('Jobs###' + document.getElementById('ctrlJPView_tbcTabContainer_Details_JP_Details_Address2Text').value + ');" style="font-size:8pt;Left:110px;Top:29px;Width:420px;Height:13px;Position:absolute;" /> My save button <input type="button" name="ctrlJPView$btnOk" value="OK" onclick="saveAmendments();refreshJobGrids();return false;__doPostBack('ctrlJPView$btnOk','')" id="ctrlJPView_btnOk" class="ControlText" style="width:60px;" /> UPDATE: I guess this comes down to one of two things. 1) Something is happening before the onClick of the button gets called to surpress that call such as an inadvertent return false; or 2) the onClick event isn't firing at all. Now I've rem'd out everything actually inside the functions that are being called beforehand but the problem persists. But if i remove the call altogether it works (???)

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  • Using PHP to display button with hyperlink or greyed out button if no URL in database

    - by Diane
    I've got a webpage that I'm working on where you click on a letter or category and it displays records matching that query from a database. One of the things I want to display is a hyperlinked button that says "Website" if the database record contains a URL in the 'URL' field, and if there is no value in that field, it will display a greyed out version of that button. I tried using an if...else statement, but was absolutely unable to get the syntax correct trying to get php to call up the 'URL' value in the middle of an "echo " So here's what I did: <?php if($row_rsmemalpha['URL'] != NULL) ?><a href="http://<?php echo ($row_rsmemalpha['URL']);?>"><target ="_blank"><img src="web_button_on.gif" alt="Website" border="0" height="18" width="103" /></target></a> <?php if($row_rsmemalpha['URL'] == NULL) echo "<img src=\"web_button_off.gif\" alt=\"No Website Available\" height=\"18\" width=\"103\" />"; ?> If there is a URL available it shows the button properly. But if there isn't a URL in the database it shows both buttons. I have spent a few days studying examples and tutorials on the web, but haven't found too much that helps. The buttons were completely non-functional when I started, so I'm pretty proud of getting this far with it! I've just run out of time and patience for more trial-and-error experimenting. Any help is appreciated... Diane

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  • how to place last div into right top corner of parent div? (css)

    - by Radek
    can I somehow using css place the block2 in right top corner of block1? Note that block2 must be the (very) last inside html code of block1 or it could be placed after block1. I cannot make it the first element in block1 <html> <head> <style type="text/css"> .block1 {color:red;width:100px;border:1px solid green;} .block2 {color:blue;width:70px;border:2px solid black;position:relative;} </style> </head> <body> <div class='block1'> <p>text</p> <p>text2</p> <div class='block2'>block2</DIV> </div> </body> </html>

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  • ContentControl + RenderTargetBitmap + empty image

    - by Kellls
    Im trying to create some chart images without ever displaying those charts on the screen. I'v been at this for quite a while and tried a lot of different things but nothing seems to work. The code works perfectly if I display the chart in a window first, but if I don't display it in a window, the bitmap is just white with a black border (no idea why). I have tried adding the chart to a border before rendering and giving the border a green borderBrush. In the bitmap, I see the green borderBrush then the black border and white background but no chart. I don't know where the black border is coming from as the chart is not contained in a black border. I have tried adding the chart to a window without calling window.Show() and again just the black boarder and white background. However if I call window.Show() the bitmap contains the chart. I have tried using a drawingVisual as explained here, same result. Here is the code (not including adding the element to a border or window): private static BitmapSource CreateElementScreenshot(FrameworkElement element, int dpi) { if (!element.IsMeasureValid) { Size size = new Size(element.Width, element.Height); element.Measure(size); element.Arrange(new Rect(size)); } element.UpdateLayout(); var scale = dpi/96.0; var renderTargetBitmap = new RenderTargetBitmap ( (int)(scale * element.RenderSize.Width),(int)(scale * element.RenderSize.Height),dpi,dpi,PixelFormats.Default ); // this is waiting for dispatcher to perform measure, arrange and render passes element.Dispatcher.Invoke(((Action)(() => renderTargetBitmap.Render(element))), DispatcherPriority.Render); return renderTargetBitmap; } Note: The chart is a ContentControl. Is there anyway I can get the chart to render without displaying it in a window first?

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  • OpenGL depth buffer on Android

    - by kayahr
    I'm currently learning OpenGL ES programming on Android (2.1). I started with the obligatory rotating cube. It's rotating fine but I can't get the depth buffer to work. The polygons are always displayed in the order the GL commands render them. I do this during initialization of GL: gl.glClearColor(.5f, .5f, .5f, 1); gl.glShadeModel(GL10.GL_SMOOTH); gl.glClearDepthf(1f); gl.glEnable(GL10.GL_DEPTH_TEST); gl.glDepthFunc(GL10.GL_LEQUAL); gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_NICEST); On surface-change I do this: gl.glViewport(0, 0, width, height); gl.glMatrixMode(GL10.GL_PROJECTION); gl.glLoadIdentity(); GLU.gluPerspective(gl, 45.0f, (float) width / (float) height, 0.1f, 100f); When I enable backface culling then everything looks correct. But backface culling is only a speed-optimization so it should also work with only the depth buffer or not? So what is missing here?

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  • Changing CSS height property removes anchors?

    - by JMan
    I am working on a standard header/navigation for my website. I started with having a CSS "height" value of 100% for the html, body elements but this resulted in the wrong layout. However, when I change the CSS height property from "100%" to "auto", the layout is correct, but I lose the anchors in the navigation. Why is this? Here's my CSS: html,body { height: auto; /* This is the only property that I'm toggling */ margin: 0; } body { margin: 0; min-width: 978px; font: 12px/16px Arial, Helvetica, sans-serif; color: #000; background: #000001 url('../images/bg-body.jpg') no-repeat 50% 0; } #nav { position: relative; float: left; margin: 0; padding: 0 2px 0 271px; list-style: none; background: url('../images/sep-nav.gif') no-repeat 100% 0; } #nav li { float: left; padding: 11px 0 0 2px; height: 35px; width: 128px; line-height: 22px; font-size: 18px; text-align: center; background: url('../images/sep-nav.gif') no-repeat 0 -1px; display: inline; } #nav li a {color: #FFFEFE;} ..... I compared the computed CSS in Firebug when the html, body height property was set to "auto" vs. "100%" and they were the same. Can somebody please shed some light on how retain the anchors in the navigation while setting height to "auto"? Thanks for your help.

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  • Location of the object after scrolling in UIScrollView

    - by ludo
    Hi, I have a scrollView (width:320px height:100px) on my UIView, inside it I add 10 images with width:106.5px each. After that I use this function to have 3 different parts inside my scrollView, so everytime I scroll, an image will automatically be center. -(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate { [self returnToPosition:self.scrollView]; } -(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { [self returnToPosition:self.scrollView]; } -(void)returnToPosition:(UIScrollView *)scrollView { CGFloat itemWidth = 106.5f; CGFloat position = [self.scrollView contentOffset].x; CGFloat newPosition = 0.0f; CGFloat offSet = position / itemWidth; NSUInteger target = (NSUInteger)(offSet + 0.5f); newPosition = target * itemWidth; [self.scrollView setContentOffset:CGPointMake(newPosition, 0.0f) animated:YES]; } Here is my question, I want to be able to know which image will be in the middle position after the user scroll the View, because I want to display on my UIView a text, specific to that image. But I don't know how to do that. Some Ideas?

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  • Adding a UIPickerView over a UITabBarController

    - by Kai
    I'm trying to have a UIPickerView slide from the bottom of the screen (over the top of a tab bar) but can't seem to get it to show up. The actual code for the animation is coming from one of Apple's example code projects (DateCell). I'm calling this code from the first view controller (FirstViewController.m) under the tab bar controller. - (IBAction)showModePicker:(id)sender { if (self.modePicker.superview == nil) { [self.view.window addSubview:self.modePicker]; // size up the picker view to our screen and compute the start/end frame origin for our slide up animation // // compute the start frame CGRect screenRect = [[UIScreen mainScreen] applicationFrame]; CGSize pickerSize = [self.modePicker sizeThatFits:CGSizeZero]; CGRect startRect = CGRectMake(0.0, screenRect.origin.y + screenRect.size.height, pickerSize.width, pickerSize.height); self.modePicker.frame = startRect; // compute the end frame CGRect pickerRect = CGRectMake(0.0, screenRect.origin.y + screenRect.size.height - pickerSize.height, pickerSize.width, pickerSize.height); // start the slide up animation [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:0.3]; // we need to perform some post operations after the animation is complete [UIView setAnimationDelegate:self]; self.modePicker.frame = pickerRect; // shrink the vertical size to make room for the picker CGRect newFrame = self.view.frame; newFrame.size.height -= self.modePicker.frame.size.height; self.view.frame = newFrame; [UIView commitAnimations]; // add the "Done" button to the nav bar self.navigationItem.rightBarButtonItem = self.doneButton; }} Whenever this action fires via a UIBarButtonItem that lives in a UINavigationBar (which is all under the FirstViewController) nothing happens. Can anyone please offer some advice?

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