Search Results

Search found 10662 results on 427 pages for 'cursor position'.

Page 305/427 | < Previous Page | 301 302 303 304 305 306 307 308 309 310 311 312  | Next Page >

  • WPF - Render text in Viewport3D

    - by eWolf
    I want to present up to 300 strings (just a few words) in a Viewport3D - fast! I want to render them on different Z positions and zoom in and out fluently. The ways I have found so far to render text in a Viewport3D: Put a TextBlock in a Viewport2DVisual3D. This guy's PlanarText class. The same guy's SolidText class. Create my own 2D panel and align TextBlocks on it. Call InvalidateArrange() every time I update the camera position. All of these are extremely slow and far apart from zooming fluently even with 10 strings only. Does anyone have a solution for this handy? It's got to be possible to render some text in a Viewport3D without waiting seconds!

    Read the article

  • z-Index overlay in google maps version 3

    - by fredrik
    Hi, I'm trying to get an overlay in google maps api v3 to appear above all markers. But it seems that the google api always put my overlay with lowest z-index priority. Only solution i've found is to iterate up through the DOM tree and manually set z-index to a higher value. Poor solution. I'm adding my a new div to my overlay with: onclick : function (e) { var index = $(e.target).index(), lngLatXYposition = $.view.overlay.getProjection().fromLatLngToDivPixel(this.getPosition()); icon = this.getIcon(), x = lngLatXYposition.x - icon.anchor.x, y = lngLatXYposition.y - icon.anchor.y $('<div>test</div>').css({ left: x, position: 'absolute', top: y + 'px', zIndex: 1000 }).appendTo('.overlay'); } I've tried every property I could think of while creating my overlay. zIndex, zPriority etc. I'm adding my overlay with: $.view.overlay = new GmapOverlay( { map: view.map.gmap }); And GmapOverlay inherits from new google.maps.OverlayView. Any ideas? ..fredrik

    Read the article

  • Android ListView background colors always showing grey.

    - by fiXedd
    I have a ListView that I'm populating from a custom ListAdapter. Inside the Adapter (in the getView(int, View, ViewGroup) method) I'm setting the background color of the View using setBackgroundColor(int). The problem is that no matter what color I set the background to it always comes out a dark grey. It might also be worth noting that I'm using the Light theme. Relevant (simplified) bits of code: AndroidManifest.xml: <activity android:name=".MyActivity" android:theme="@android:style/Theme.Light" /> MyAdapter.java: @Override public View getView(int position, View convertView, ViewGroup parent) { LayoutInflater inflater = LayoutInflater.from(mContext); View av = inflater.inflate(R.layout.my_row, parent, false); av.setBackgroundColor(R.color.myRow_red); mName = (TextView) av.findViewById(R.id.myRow_name); mName.setText("This is a name"); return av; } Any ideas/suggestions?

    Read the article

  • Flow diagram in html/css

    - by viraptor
    Hi, is there some good way to create a flow / swimline diagram without resorting to scripting or tables? I'm talking about showing different hosts sending packets (so hosts on the X axis, time on the Y and arrows to the destination host). It seems like too much elements for tables (especially the arrows spanning multiple columns either way), but on the other hand, divs would be hard to position in the right place horizontally (they'd have to be basically aligned to a specified "column"). Is there any good way out? Any helper frameworks? (I don't want to do canvas stuff unless really needed)

    Read the article

  • Why is Excel 2010/2013 taking 10 seconds open any file?

    - by jbkly
    I have a fast Windows 7 PC with two SSDs and 16GB of RAM, so I'm used to programs loading very fast. But recently, for no reason I can figure out, Excel has started taking way too long to open Excel files (of any size--even blank files). This is occurring with Excel 2010 and with Excel 2013 after I upgraded, hoping to solve the problem. Here a couple scenarios: If I start Excel directly, it opens almost instantly. No problem there. If I start Excel directly, and then open any Excel file (.xls or .xlsx), it loads almost instantly. Still no problem BUT if I attempt to open any Excel file directly, with Excel not running, it consistently takes 10-11 seconds for Excel to start. I get no error messages, just a spinning cursor for 10-11 seconds, and then the file opens. During the delay while Excel is trying to start, I'm not really seeing any discernible spike in CPU or memory usage, other than explorer.exe. This problem is only occurring with Excel, not Word or any other program I'm aware of. I've searched around quite a bit on this question and found various others who have experienced it, but the solutions that worked for them are not working for me. For a few people it was a problem with scanning network drives, but my problem is purely with local files; I have no network drives, and the problem persists even with all network connections disabled. Some people suggested worksheets with corrupted formulas or links, but I'm experiencing this with ANY Excel file: even blank worksheets. Others thought it was a problem with add-ins, but I have all Excel add-ins disabled (as far as I can tell). One person solved it by disabling a "clipboard manager" process that was running in the background, but I don't have that. I've disabled as many startup and background processes as I can, but the problem persists. I've run malware scans, disk cleanup, CCleaner, and installed Excel 2013. I've deleted temporary files, enabled SuperFetch, and edited registry keys. Still can't get rid of the problem. Any ideas? My system details: Windows 7 Professional SP1 64-bit, Excel 2013 32-bit, 16GB RAM, all programs installed on SSD.

    Read the article

  • Looking for fully managed WeifenLuo(DockPanel Suite) replacement or hints on implementing one

    - by luiscubal
    I need a WeifenLuo replacement that'll run on both .NET and Mono, on Windows, Linux and Mac, preferrably licensed under the MIT license. I'd appreciate if the API was similar to WeifenLuo's, but I understand that such may not be available. Also, since I couldn't find anything on Google, I believe this might not exist. In this case, I'd like some hints regarding how to implement this. I have some(not much) Windows.Forms experience, and I must not use any P/Invoke. I already know out how to detect window motion and how to create a borderless translucent window on a given position and with a given size. So here are some problems I am facing: WeifenLuo supports multiple left/right/top/bottom panes, allowing them to be resized and contain more than one panel. It also supports splittable tabs. Is there anything else I should be aware of before starting? Are there similar open-source projects available?

    Read the article

  • UIView Animation: PartialCurl ...bug during rotate?

    - by itai alter
    Hello all, a short question. I've created an app for the iPad, much like a utility app for the iPhone (one mainView, one flipSideView). The animation between them is UIModalTransitionStylePartialCurl. shouldAutorotateToInterfaceOrientation is returning YES. If I rotate the device BEFORE entering the FlipSide, everything is okay and the PartialCurl is displayed okay. But if I enter the FlipSide and then rotate the device, while the UIElements do rotate and position themselves just fine, the actual "page curl" stays with its initial orientation. it just won't budge :) Is it a known issue? am I doing something wrong? Thanks!

    Read the article

  • How to intercept UIScrollView contentOffset changes from UITableView subclass?

    - by mystify
    Actually, a UITableView is a UIScrollView (inherits from that). Now, I made a UITableView subclass and added this line of code to it: - (void)scrollViewDidScroll:(UIScrollView *)scrollView { NSLog(@"contentOffset: %@", NSStringFromCGPoint(self.contentOffset)); } For some reason this is never called when I scroll the table view. But since UITableView has a delegate property on it's own, I assume that it must implement UIScrollViewDelegate protocol and is the delegate for the scroll view itself. Isn't it? How could I intercept scroll position changes? I want to read them only. Probably I couldn't set them with contentOffset, right?

    Read the article

  • GetWindowPlacement/SetWindowPlacement not working in WinForms for high DPI

    - by RandomEngy
    I've got a legacy WinForms app and I want to save the window position and size across sessions. I've been using GetWindowPlacement and SetWindowPlacement during the FormClosing and Load events. The problem I'm getting is that at higher DPI settings (Such as Medium, size at 125%) the sizes keep inflating. I'll call SetWindowPlacement on it with a certain size, but when GetWindowPlacement is called, those numbers come back 25% bigger, even though the window was the same size all along. The same sort of problem exists when saving the size of a resizable element within the form. Now this works fine if I create a new WinForms project: The size stays stable even when running at the higher DPI. I'm guessing there's some legacy setting in the bowels of the project or some arcane Form setting that's messing it up, but I can't find out where. I've called IsProcessDPIAware on both projects and both are true. Does anyone know what might be causing this?

    Read the article

  • WPF absolute positioning in InkCanvas

    - by Nilu
    Hi, I'm trying to position a rectangle in an InkCanvas. I am using the following method. Unfortunately when I add the rectangle it gets displayed at (0,0). Although when I query to see the whether the left property is 0 I get a non zero values. Does anyone know why this might be? Cheers, Nilu InkCanvas _parent = new InkCanvas(); private void AddDisplayRect(Color annoColour, Rect bounds) { Rectangle displayRect = new Rectangle(); Canvas.SetTop(displayRect, bounds.Y); Canvas.SetLeft(displayRect, bounds.X); // check to see if the property is set Trace.WriteLine(Canvas.GetLeft(displayRect)); displayRect.Width = bounds.Width; displayRect.Height = bounds.Height; displayRect.Stroke = new SolidColorBrush(annoColour); displayRect.StrokeThickness = 1; _parent.Children.Add(displayRect); }

    Read the article

  • Object Oriented database development jobs

    - by GigaPr
    Hi, i am a software engineering student currently looking for a job as developer. I have been offered a position in a company which implements software using object oriented databases. these are something completely new for me as at university we never worked on it, just some theory. my questions are do you think is a good way to start my career as developer? what is the job market for this type of developemnt? are these skills requested? what markets this technology touches? thanks

    Read the article

  • Freeze the indent of a row group in DevExpress GridControl

    - by brader
    I am required to display a DevExpress WinForms GridControl where the rows must be grouped by a date column. When horizontally scrolling the grid, I am required to keep the group row and group indents fixed to the left of the control (so they do not scroll with the columns). I have so far been unable to find any built-in capability for this. There is the ability to fix a column to the left or right side of the control, but the indent is not a true column. FYI, the group row portion is staying "fixed" by handling the drawing of it to always position it at the left. I do not see a way of controlling the drawing of the indent however. Attempts to custom draw an indent have been unsuccessful so far. We are using version 9.3.2.0 of the DevExpress XtraGrid controls for WinForms. Does anyone have any solutions or workarounds that might allow us to at least give the appearance that the group indents are fixed? Thank you!

    Read the article

  • jquery animation callback - how to pass parameters to callback

    - by Hans
    I´m building a jquery animation from a multidimensional array, and in the callback of each iteration i would like to use an element of the array. However somehow I always end up with last element of the array instead of all different elements. html: <div id="square" style="background-color: #33ff33; width: 100px; height: 100px; position: absolute; left: 100px;"></div> javascript: $(document).ready(function () { // Array with Label, Left pixels and Animation Lenght (ms) LoopArr = new Array( new Array(['Dog', 50, 500]), new Array(['Cat', 150, 5000]), new Array(['Cow', 200, 1500]) ); $('#square').click(function() { for (x in LoopArr) { $("#square").animate({ left: LoopArr[x][0][1] }, LoopArr[x][0][2], function() { alert (LoopArr[x][0][0]); }); } }); }); ` Current result: Cow, Cow, Cow Desired result: Dog, Cat, Cow How can I make sure the relevant array element is returned in the callback?

    Read the article

  • Select row After UIPickerView is loaded

    - by Steve Gibson
    I have an iphone database app that loads a UIPickerView with data from a table. I want to set the selected row to a particular row from the data in another table. for example: Lets say I have a UIPickerView that is loaded with X number of names of the iPhone users friends (the number of names is variable, could be 1 or 1000 and all are entered into the DB by the user). The iPhone user has a preference set that their current best friend is TED. I want the UIPickerView to be position to TED when displayed. Where do I call selectRow? I tried in viewDidAppear but it was never called, in titleForRow which caused all kinds of strange behavior. viewDidLoad and viewWillAppear are out of the question because I don't know what's in the datasource to the picker yet. Thanks in advance.

    Read the article

  • jquery hover not working properly other than IE6

    - by Kranthi
    Hi All, We developed navigation bar using jQuery 1.4.2. Functionality is to show submneus for different menu items when user hovers on it. It is working perfectly in IE6 but we see some weird problems in other browsers. In Firefox, when the page gets loaded, it works fine but when we hit f5, the submenu wont appear on hover. To get submenu we need to click on any other menu item. In Chrome, its the same to add on, some time even we click on any menu item, and hover submenu wont show up. In Safari, nothing shows up most of the times, but on clicking 5-6 menu items, submenu is shown.When we see loading text in safari it shows the submenu. but on every click the loading text wont appear.. We are very much confused..is it the browser behavior/code/jquery?? Below is the snippet: Html: <ul> <li><a class="mainLinks" href="google.com">Support</a> <ul><li>Sublink1</li></ul> </ul> Html code is absolutely fine. Jquery: var timeout = null; var ie = (document.all) ? true : false; $(document).ready(function(){ var $mainLink = null; var $subLink = null; $(".mainLinks").each(function(){ if ($(this).hasClass("current")) { $(this).mouseout(function() { var $this = $(this); timeout = setTimeout(function() { $(".popUpNav", $this.parent()).css({ visibility : 'hidden' }); $('.popUpArrow').hide(); ieCompat('show'); }, 200); }); } else { $(this).hover(function() { reset(); ieCompat('hide'); // Saving this for later use in the popUpNav hover event $mainLink = $(this); $popUpNav = $(".popUpNav", $mainLink.parent()); // Default width is width of one column var popupWidth = $('.popUpNavSection').width() + 20; // Calculate popup width depending on the number of columns var numColumns = $popUpNav.find('.popUpNavSection').length; if (numColumns != 0) { popupWidth *= numColumns; } var elPos = $mainLink.position(); var leftOffset = 0; if (elPos.left + popupWidth > 950) { leftOffset = elPos.left + popupWidth - 948; } $popUpNav.css({ top : elPos.top + 31 + 'px', left : elPos.left - leftOffset + 'px', visibility : 'visible', width : popupWidth + 'px' }); $('.popUpArrow').css({ left : elPos.left + Math.round(($mainLink.width() / 2)) + 20 + 'px', top : '27px' }).show(); }, function() { var $this = $(this); timeout = setTimeout(function() { $(".popUpNav", $this.parent()).css({ visibility : 'hidden' }); $('.popUpArrow').hide() ieCompat('show'); }, 200); } ); } }); $(".subLinks").hover( function(e) { $subLink = $(this); var elPos = $subLink.position(); var popupWidth = $(".popUpNavLv2",$subLink.parent()).width(); var leftOffset = 0; ieCompat('hide'); $(".popUpNavLv2",$subLink.parent()).css({ top : elPos.top + 32 + 'px', left : elPos.left - leftOffset + 'px', visibility : 'visible' }); }, function() { var $this = $(this); timeout = setTimeout(function() { $(".popUpNavLv2", $this.parent()).css({ visibility : 'hidden' }); }, 200); ieCompat('show'); } ); $('.popUpNav').hover( function() { clearTimeout(timeout); $mainLink.addClass('current'); $(this).css('visibility', 'visible'); $('.popUpArrow').show(); }, function() { $mainLink.removeClass('current'); $(this).css('visibility', 'hidden'); $('.popUpArrow').hide(); ieCompat('show'); } ); $('.popUpNavLv2').hover( function() { clearTimeout(timeout); $(this).css('visibility', 'visible'); ieCompat('hide'); }, function() { ieCompat('show'); $(this).css('visibility', 'hidden'); } ); // If on mac, reduce left padding on the tabs if (/mac os x/.test(navigator.userAgent.toLowerCase())) { $('.mainLinks, .mainLinksHome').css('padding-left', '23px'); } }); Thanks a lot in advance for looking into it. Thanks | Kranthi

    Read the article

  • VB FFT - stuck understanding relationship of results to frequency

    - by WaveyDavey
    Trying to understand an fft (Fast Fourier Transform) routine I'm using (stealing)(recycling) Input is an array of 512 data points which are a sample waveform. Test data is generated into this array. fft transforms this array into frequency domain. Trying to understand relationship between freq, period, sample rate and position in fft array. I'll illustrate with examples: ======================================== Sample rate is 1000 samples/s. Generate a set of samples at 10Hz. Input array has peak values at arr(28), arr(128), arr(228) ... period = 100 sample points peak value in fft array is at index 6 (excluding a huge value at 0) ======================================== Sample rate is 8000 samples/s Generate set of samples at 440Hz Input array peak values include arr(7), arr(25), arr(43), arr(61) ... period = 18 sample points peak value in fft array is at index 29 (excluding a huge value at 0) ======================================== How do I relate the index of the peak in the fft array to frequency ?

    Read the article

  • Graphite SQLite3 DatabaseError: attempt to write a readonly database

    - by Anadi Misra
    Running graphite under apache httpd, with slqite database, I have the correct folder permissions [root@liaan55 httpd]# ls -ltr /var/lib | grep graphite drwxr-xr-x. 2 apache apache 4096 Aug 23 19:36 graphite-web and [root@liaan55 httpd]# ls -ltr /var/lib/graphite-web/ total 68 -rw-r--r--. 1 apache apache 65536 Aug 23 19:46 graphite.db syncdb also seems to have gone fine [root@liaan55 httpd]# sudo -su apache bash-4.1$ whoami apache bash-4.1$ python /usr/lib/python2.6/site-packages/graphite/manage.py syncdb /usr/lib/python2.6/site-packages/graphite/settings.py:231: UserWarning: SECRET_KEY is set to an unsafe default. This should be set in local_settings.py for better security warn('SECRET_KEY is set to an unsafe default. This should be set in local_settings.py for better security') /usr/lib/python2.6/site-packages/django/conf/__init__.py:75: DeprecationWarning: The ADMIN_MEDIA_PREFIX setting has been removed; use STATIC_URL instead. "use STATIC_URL instead.", DeprecationWarning) /usr/lib/python2.6/site-packages/django/core/cache/__init__.py:82: DeprecationWarning: settings.CACHE_* is deprecated; use settings.CACHES instead. DeprecationWarning Creating tables ... Creating table account_profile Creating table account_variable Creating table account_view Creating table account_window Creating table account_mygraph Creating table dashboard_dashboard_owners Creating table dashboard_dashboard Creating table events_event Creating table auth_permission Creating table auth_group_permissions Creating table auth_group Creating table auth_user_user_permissions Creating table auth_user_groups Creating table auth_user Creating table django_session Creating table django_admin_log Creating table django_content_type Creating table tagging_tag Creating table tagging_taggeditem You just installed Django's auth system, which means you don't have any superusers defined. Would you like to create one now? (yes/no): yes Username (leave blank to use 'apache'): root E-mail address: [email protected] Password: Password (again): Superuser created successfully. Installing custom SQL ... Installing indexes ... Installed 0 object(s) from 0 fixture(s) bash-4.1$ exit and the local-settings.py file is as follows STORAGE_DIR = '/var/lib/graphite-web' INDEX_FILE = '/var/lib/graphite-web/index' DATABASES = { 'default': { 'NAME': '/var/lib/graphite-web/graphite.db', 'ENGINE': 'django.db.backends.sqlite3', 'USER': '', 'PASSWORD': '', 'HOST': '', 'PORT': '' } } I still get this error [Sat Aug 23 19:47:17 2014] [error] [client 10.42.33.238] File "/usr/lib/python2.6/site-packages/django/db/backends/sqlite3/base.py", line 344, in execute [Sat Aug 23 19:47:17 2014] [error] [client 10.42.33.238] return Database.Cursor.execute(self, query, params) [Sat Aug 23 19:47:17 2014] [error] [client 10.42.33.238] DatabaseError: attempt to write a readonly database not sure what is missing in this configuration

    Read the article

  • Need to center image in web page via CSS

    - by Robot
    I'd like to center an image in a page both vertically and horizontally even when the browser is resized. Currently, I use this CSS: .centeredImage { position: fixed; top: 50%; left: 50%; margin-top: -50px; margin-left: -150px; } And this HTML: <img class="centeredImage" src="images/logo.png"> It centers in FF but not IE (image center is placed at upper left corner). Any ideas? -Robot

    Read the article

  • Sliding in Winforms form

    - by rs
    Hi, I'm making a form at the bottom of the screen and I want it to slide upwards so I wrote the following code: int destinationX = (Screen.PrimaryScreen.WorkingArea.Width / 2) - (this.Width / 2); int destinationY = Screen.PrimaryScreen.WorkingArea.Height - this.Height; this.Location = new Point(destinationX, destinationY + this.Height); while (this.Location != new Point(destinationX, destinationY)) { this.Location = new Point(destinationX, this.Location.Y - 1); System.Threading.Thread.Sleep(100); } but the code just runs through and shows the end position without showing the form sliding in which is what I want. I've tried Refresh, DoEvents - any thoughts?

    Read the article

  • Help:Graph contest problem: maybe a modified Dijkstra or another alternative algorithm

    - by newba
    Hi you all, I'm trying to do this contest exercise about graphs: XPTO is an intrepid adventurer (a little too temerarious for his own good) who boasts about exploring every corner of the universe, no matter how inhospitable. In fact, he doesn't visit the planets where people can easily live in, he prefers those where only a madman would go with a very good reason (several millions of credits for instance). His latest exploit is trying to survive in Proxima III. The problem is that Proxima III suffers from storms of highly corrosive acids that destroy everything, including spacesuits that were especially designed to withstand corrosion. Our intrepid explorer was caught in a rectangular area in the middle of one of these storms. Fortunately, he has an instrument that is capable of measuring the exact concentration of acid on each sector and how much damage it does to his spacesuit. Now, he only needs to find out if he can escape the storm. Problem The problem consists of finding an escape route that will allow XPTOto escape the noxious storm. You are given the initial energy of the spacesuit, the size of the rectangular area and the damage that the spacesuit will suffer while standing in each sector. Your task is to find the exit sector, the number of steps necessary to reach it and the amount of energy his suit will have when he leaves the rectangular area. The escape route chosen should be the safest one (i.e., the one where his spacesuit will be the least damaged). Notice that Rodericus will perish if the energy of his suit reaches zero. In case there are more than one possible solutions, choose the one that uses the least number of steps. If there are at least two sectors with the same number of steps (X1, Y1) and (X2, Y2) then choose the first if X1 < X2 or if X1 = X2 and Y1 < Y2. Constraints 0 < E = 30000 the suit's starting energy 0 = W = 500 the rectangle's width 0 = H = 500 rectangle's height 0 < X < W the starting X position 0 < Y < H the starting Y position 0 = D = 10000 the damage sustained in each sector Input The first number given is the number of test cases. Each case will consist of a line with the integers E, X and Y. The following line will have the integers W and H. The following lines will hold the matrix containing the damage D the spacesuit will suffer whilst in the corresponding sector. Notice that, as is often the case for computer geeks, (1,1) corresponds to the upper left corner. Output If there is a solution, the output will be the remaining energy, the exit sector's X and Y coordinates and the number of steps of the route that will lead Rodericus to safety. In case there is no solution, the phrase Goodbye cruel world! will be written. Sample Input 3 40 3 3 7 8 12 11 12 11 3 12 12 12 11 11 12 2 1 13 11 11 12 2 13 2 14 10 11 13 3 2 1 12 10 11 13 13 11 12 13 12 12 11 13 11 13 12 13 12 12 11 11 11 11 13 13 10 10 13 11 12 8 3 4 7 6 4 3 3 2 2 3 2 2 5 2 2 2 3 3 2 1 2 2 3 2 2 4 3 3 2 2 4 1 3 1 4 3 2 3 1 2 2 3 3 0 3 4 10 3 4 7 6 3 3 1 2 2 1 0 2 2 2 4 2 2 5 2 2 1 3 0 2 2 2 2 1 3 3 4 2 3 4 4 3 1 1 3 1 2 2 4 2 2 1 Sample Output 12 5 1 8 Goodbye cruel world! 5 1 4 2 Basically, I think we have to do a modified Dijkstra, in which the distance between nodes is the suit's energy (and we have to subtract it instead of suming up like is normal with distances) and the steps are the ....steps made along the path. The pos with the bester binomial (Energy,num_Steps) is our "way out". Important : XPTO obviously can't move in diagonals, so we have to cut out this cases. I have many ideas, but I have such a problem implementing them... Could someone please help me thinking about this with some code or, at least, ideas? Am I totally wrong?

    Read the article

  • Formatting an indented list in CSS

    - by Colen
    Hi, Let's say I have a list, with an arbitrary number of indentation levels, like so: Item Item Item Item Item Item Item Item Item Item Item If I'm displaying this list in an HTML document, how can I use CSS to handle the indentation? There might be an arbitrary number of indentation levels (although in practice there isn't going to be more than 5 or so). I don't want to create an "indent1" class that indents 10 pixels, an "indent2" class that indents 20 pixels, etc - that's clumsy. Is it possible to create a general rule that will indent by a certain distance based on an attribute value, or the position of an element in the hierarchy?

    Read the article

  • Silverlight DataGrid refresh problem

    - by Krimson
    Hi, I have encountered a problem when I refresh the observable collection behind my Silverlight DataGrid (the DataGrid binds to a PagedCollectionView with an ObservableCollection as source). When I clear the observable collection and add the new items to the collection the DataGrid repositions to the top. I want the DataGrid to keep the scroll position. This seems to somewhat happen if I remove the items in the collection one-by-one with the RemoveAt mehtod and the add the new items one-by-one. But why is there this difference between removing all the items at once with the Clear method and removing the items one-by-one with the RemoveAt method? Best Regards, Jesper

    Read the article

  • WPF DataGridTextColumn Can't type point for float data

    - by Alvin
    I had a WPF DataGrid and use DataGridTextColumn Binding to a Collection. The items in Collection had some float property. When my program launched, I modify the value of float property in DataGrid, if I type a integer value, it works well. But if I type char . for a float value, char . can't be typed. I had to type all the numbers first, and then jump to the . position to type char . to finish my input. So how can I type . in my situation? Thanks.

    Read the article

  • How to specify behavior of Java BufferedImage resize: need min for pixel rows instead of averaging

    - by tucuxi
    I would like to resize a Java BufferedImage, making it smaller vertically but without using any type of averaging, so that if a pixel-row is "blank" (white) in the source image, there will be a white pixel-row in the corresponding position of the destination image: the "min" operation. The default algorithms (specified in getScaledInstance) do not allow me a fine-grained enough control. I would like to implement the following logic: for each pixel row in the w-pixels wide destination image, d = pixel[w] find the corresponding j pixel rows of the source image, s[][] = pixel[j][w] write the new line of pixels, so that d[i] = min(s[j][i]) over all j, i I have been reading on RescaleOp, but have not figured out how to implement this functionality -- it is admittedly a weird type of scaling. Can anyone provide me pointers on how to do this? In the worse case, I figure I can just reserve the destination ImageBuffer and copy the pixels following the pseudocode, but I was wondering if there is better way.

    Read the article

  • Django: Adding inline formset rows without javascript

    - by Brant
    This post relates to this: http://stackoverflow.com/questions/520421/add-row-to-inlines-dynamically-in-django-admin Is there a way to achive adding inline formsets WITHOUT using javascript? Obviously, there would be a page-refresh involved. So, if the form had a button called 'add'... I figured I could do it like this: if request.method=='POST': if 'add' in request.POST: PrimaryFunctionFormSet = inlineformset_factory(Position,Function,extra=1) prims = PrimaryFunctionFormSet(request.POST) Which I thought would add 1 each time, then populate the form with the post data. However, it seems that the extra=1 does not add 1 to the post data.

    Read the article

< Previous Page | 301 302 303 304 305 306 307 308 309 310 311 312  | Next Page >