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  • In the Xcode SplitView template for an iPad app, how do I add a Date Picker control to the Root View

    - by Dr Dork
    I'm diving into iPhone OS development on the iPad and one of the things I'm playing with is the SplitView template. The template provides a window with a UISplitView view, containing the Root View (on the left of the window) and the Detail View (on the right of the window). The Root View is a subclass of a TableView. Rather than having the entire Root View consist of a TableView, I'd like it to contain a DatePicker view along with the TableView under it. When I go into IB and try and drop a DatePicker into the Root View, it won't let me. It will only let me add a DatePicker view to the Detail View. Why wont IB let me drop a DatePicker view into the Root View? How can I add a DatePicker to the RootView in addition to the TableView? I'm still learning this new platform, so I apologize if these questions are absurd in any way. Thanks so much in advance for your help, I'm going to continue researching these questions right now.

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  • Can't create more than one overlay in Seadragon

    - by XGreen
    Hi everyone, I am trying to add overlays to a seadragon map I am making but for some reason that I can not figure our seadragon ignores all my overlays except the first one. Any help with this is much appreciated. var viewer = null; function init() { Seadragon.Config.autoHideControls = false; viewer = new Seadragon.Viewer("container"); viewer.addEventListener("open", addOverlays); viewer.addControl(makeControl(), Seadragon.ControlAnchor.TOP_RIGHT); $(viewer.getNavControl()).parent().parent().css({ 'top': 10, 'right': 10 }); viewer.openDzi("_assets/Mapdata/dzc_output.xml"); } function makeControl() { var control = document.createElement("a"); var controlText = document.createTextNode(""); control.href = "#"; // so browser shows it as link control.className = "control"; control.appendChild(controlText); Seadragon.Utils.addEvent(control, "click", onControlClick); return control; } function onControlClick(event) { Seadragon.Utils.cancelEvent(event); // don't process link if (!viewer.isOpen()) { return; } // These are the coordinates of europe on this map var x = 0.5398693914203284; var y = 0.21155952391206562; var z = 5; viewer.viewport.panTo(new Seadragon.Point(x, y)); viewer.viewport.zoomTo(z); viewer.viewport.ensureVisible(); } function addOverlays(viewer) { drawer = viewer.drawer; var img = document.createElement("img"); img.src = "_assets/Images/pushpin.png"; $(img).addClass('pushPin'); var overlays = [ { elmt: img, point: new Seadragon.Point(0.51, 0.22) }, { elmt: img, point: new Seadragon.Point(0.20, 0.13) } ]; for (var i = 0; i < overlays.length; i++) { drawer.addOverlay(overlays[i].elmt, overlays[i].point); } } Seadragon.Utils.addEvent(window, "load", init);

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  • ASP.NET MVC2 Access-Control: How to do authorization dynamically?

    - by Shaharyar
    We're currently rewriting our organizations ASP.NET MVC application which has been written twice already. (Once MVC1, once MVC2). (Thank god it wasn't production ready and too mature back then). This time, anyhow, it's going to be the real deal because we'll be implementing more and more features as time passes and the testruns with MVC1 and MVC2 showed that we're ready to upscale. Until now we were using Controller and Action authorization with AuthorizeAttribute's. But that won't do it any longer because our views are supposed to show different results based on the logged in user. Use Case: Let's say you're a major of a city and you login to a federal managed software and you can only access and edit the citizens in your city. Where you are allowed to access those citizens via an entry in a specialized MajorHasRightsForCity table containing a MajorId and a CityId. What I thought of is something like this: Public ViewResult Edit(int cityId) { if(Access.UserCanEditCity(currentUser, cityId) { var currentCity = Db.Cities.Single(c => c.id == cityId); Return View(currentCity); } else { TempData["ErrorMessage"] = "Yo are not awesome enough to edit that shizzle!" Return View(); } The static class Access would do all kinds of checks and return either true or false from it's methods. This implies that I would need to change and edit all of my controllers every time I change something. (Which would be a pain, because all unit tests would need to be adjusted every time something changes..) Is doing something like that even allowed?

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  • Recommendations on developing a WPF application without using MVVM or similar

    - by Metro Smurf
    We were building out the next version of an in-house thick-client application using WPF/Prism (Composite Application Library). As we were nearly done with the client our team was put under new management and shortly thereafter: We were then directed to drop the Prism framework to keep things simple. This includes not using any type of Inversion of Control. We were directed to build out the WPF application without using MVVM or similar; and more along the lines of a traditional WinForm application. The idea is that if a developer sees a control in Visual Studio’s designer view, then (s)he should be able to click on the control and see exactly what it's doing without having to traverse through a view-model (or similar). We have now been tasked with building out the WPF application using one primary Window, use a Frame Control to contain the content, and use a Ribbon outside of the frame for the menu items. Reason we were provided to use Frame Control: a. We will show a view in the Frame with a Page (not a user control) and then load the page in the Frame. b. When a new view is to be shown in the Frame, the current view (Page) will be closed/disposed and the new view (Page) will take its place in the Frame. c. When a developer looks at the Page in design view, (s)he will be able to click on any control and see exactly what is being done. Given the restrictions of 1 and 2 above, we’d like to present another method of building out the application that: Can be presented as an alternative to using the “Frame Methodology” (item 3 above) but still provides the same type of functionality. Does not use MVVM (see #1 and #2 above). Provided the direction we’ve been given, any suggestions as to an alternative we can present? I’d request that the responses be kept on the professional level and thank you in advance.

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  • How do you override the opacity of a parent control in WPF?

    - by Metro Smurf
    When you set the opacity on a Grid in WPF, all the child elements appear to inherit its Opacity. How can you have a child element not inherit the parent's opacity? For example, the following parent grid has one child grid in the middle with a background set to red, but the background appears pinkish because of the parent's opacity. I'd like the child grid to have a solid color, non-transparent background: <Grid x:Name="LayoutRoot"> <Grid Background="Black" Opacity="0.5"> <Grid.RowDefinitions> <RowDefinition Height="0.333*"/> <RowDefinition Height="0.333*"/> <RowDefinition Height="0.333*"/> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="0.333*"/> <ColumnDefinition Width="0.333*"/> <ColumnDefinition Width="0.333*"/> </Grid.ColumnDefinitions> <-- how do you make this child grid's background solid red and not inherit the Opacity/Transparency of the parent grid? --> <Grid Grid.Column="1" Grid.Row="1" Background="Red"/> </Grid> </Grid>

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  • How can I pass a reference to another control as an IValueConverter parameter?

    - by MKing
    I am binding some business objects to a WPF ItemsControl. They are displayed using a custom IValueConverter implementation used to produce the Geometry for a Path object in the DataTemplate as shown here: <ItemsControl x:Name="Display" Background="White" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" ItemsSource="{Binding ElementName=ViewPlaneSelector, Path=SelectedItem.VisibleElements}" > <ItemsControl.Resources> <!-- This object is just used to get around the fact that ConverterParameter can't be a binding directly (it's not a DependencyProperty on a DependencyObject --> <this:GeometryConverterData x:Key="ConverterParameter2" Plane="{Binding ElementName=ViewPlaneSelector, Path=SelectedItem}" /> <DataTemplate DataType="{x:Type o:SlenderMember}"> <Path Stroke="Blue" StrokeThickness=".5" Data='{Binding Converter={StaticResource SlenderMemberConverter}, ConverterParameter={StaticResource ConverterParameter2}}' ToolTip="{Binding AsString}"> </Path> </DataTemplate> </ItemsControl.Resources> </ItemsControl> Note that the items for the ItemsControl are drawn from the ViewPlaneSelector (a ComboBox) SelectedItem.VisibleElements property. I need that same ViewPlaneSelector.SelectedItem in the SlenderMemberConverter to figure out how to display this element. I'm trying to get a reference to it into the converter by creating the intermediate GeometryConverterData object in the Resources section. This object exists solely to get around the problem of not being able to bind directly to the ConverterParameter property (as mentioned in the comments). Here is the code for the GeometryDataConverter class: class GeometryConverterData : FrameworkElement { public static readonly DependencyProperty PlaneProperty = DependencyProperty.Register("Plane", typeof(ViewPlane), typeof(GeometryConverterData), null, ValidValue); public static bool ValidValue(object o){ return true; } public ViewPlane Plane { get{ return GetValue(PlaneProperty) as ViewPlane; }set{ SetValue(PlaneProperty, value); } } } I added the ValidValue function for debugging, to see what this property was getting bound it. It only and always gets set to null. I know that the ViewPlaneSelector.SelectedItem isn't always null since the ItemsControl has items, and it's items are drawn from the same property on the same object... so what gives? How can I get a reference to this ComboBox into my ValueConverter. Or, alternately, why is what I'm doing silly and overly complicated. I'm as guilty as many of sometimes getting it into my head that something has to be done a certain way and then killing myself to make it happen when there's a much cleaner and simpler solution.

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  • How can I access the group of a linq group-by query from a nested repeater control?

    - by Duke
    I'm using a linq group by query (with two grouping parameters) and would like to use the resulting data in a nested repeater. var dateGroups = from row in data.AsEnumerable() group row by new { StartDate = row["StartDate"], EndDate = row["EndDate"] }; "data" is a DataTable from an SqlDataAdapter-filled DataSet. "dateGroups" is used in the parent repeater, and I can access the group keys using Eval("key.StartDate") and Eval("key.EndDate"). Since dateGroups actually contains all the data rows grouped neatly by Start/End date, I'd like to access those rows to display the data in a child repeater. To what would I set the child repeater's DataSource? I have tried every expression in markup I could think of; I think the problem is that I'm trying to access an anonymous member (and I don't know how.) In case it doesn't turn out to be obvious, what would be the expression to access the elements in each iteration of the child repeater? Is there an expression that would let me set the DataSource in the markup, or will it have to be in the codebehind on some event in the parent repeater?

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  • VB.Net Custom Controls

    - by Paul
    This might be basic question, however I am confused on some .Net Concpets. I am trying to create a "Data Browser" in VB.net. Similar to a Web Browser however each Tab in the Data Browser is a view of some Data (from a database or flat files) not a webpage. The UI on each Tab is mostly the same. A list Box (showing datatypes, etc), a TextBox (where you can create a filter), and a DataGridView, a DataSource Picker, etc. The only thing that would change on each tab is that there could be a custom "Viewer". In most cases (depending on the datasource), this would be the datagrid, however in other cases it would be a treecontrol. From reading through the .Net documents, it appears that I need to Create a Custom Control (MyDataBrowser) Consisting of a Panel with all the common Controls (except the viewer). Every time the user says "New Tab", a new tabpage is created and this MyDataBrowser Control is added, The MyDataBrowser control would contain some function that was able to then create the approriate viewer based on the data at hand. If this is the suggested route, how is the best way to go about creating the MyDataBrowser Control (A) Is this a Custom Control Library? (B) Is this an Inhertited Form? (C) Is this an Inherrited User Control? I assume that I have to create a .DLL and add as a reference. Any direction on this would be appreciated. Does the custom Control have its own properties (I would like to save/load these from a configuration file). Is it possible to add a backgroundworker to this customcontrol? Thanks.

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  • How to dynamically set control IDs inside a repeater template?

    - by Bryan
    Here is a perplexing issue I have not seen a good answer to on StackOverflow, although there a couple stabs at it... I have a situation where I'd like to do this: <asp:Repeater ID="MyRepeater" runat="server" OnItemDataBound="MyRepeater_ItemDataBound"> <ItemTemplate> <li id="id?"> All the other stuff </li> </ItemTemplate> </asp:Repeater> The question... is how do I get the ID of my <li> elements to be id1, id2, id3, etc., based on the ItemIndex they are bound to? So far the most... er..."elegant" solution I've come up with is to replace the <li> with an asp:Literal and dump the <li...>' text. But that just feels... so wrong. And no, I'm not using ASP.NET 4.0, which I've read will provide this functionality.

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  • Automatically calling OnDetaching() for Silverlight Behaviors

    - by Dan Auclair
    I am using several Blend behaviors and triggers on a silverlight control. I am wondering if there is any mechanism for automatically detaching or ensuring that OnDetaching() is called for a behavior or trigger when the control is no longer being used (i.e. removed from the visual tree). My problem is that there is a managed memory leak with the control because of one of the behaviors. The behavior subscribes to an event on some long-lived object in the OnAttached() override and should be unsubscribing to that event in the OnDetaching() override so that it can become a candidate for garbage collection. However, OnDetaching() never seems to be getting called when I remove the control from the visual tree... the only way I can get it to happen is by explicit detaching the behavior BEFORE removing the control and then it is properly garbage collected. Right now my only solution was to create a public method in the code-behind for the control that can go through and detach any known behaviors that would cause garbage collection problems. It would be up to the client code to know to call this before removing the control from the panel. I don't really like this approach, so I am looking for some automatic way of doing this that I am overlooking or a better suggestion. public void DetachBehaviors() { foreach (var behavior in Interaction.GetBehaviors(this.LayoutRoot)) { behavior.Detach(); } //... //continue detaching all known problematic behaviors.... }

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  • jqmodal IE (7 or 8) flashes black before modal loaded

    - by brad
    This is killing me. In both IE7 and 8, using jqModal, the screen flashes black before the modal content is loaded. I've set up a test app to show you what's happening. I've taken jqModal EXACTLY from the site, no changes whatsoever, no external css that could be affecting my app. It works perfectly in every other browser (including IE6). http://jqmtest.heroku.com/ So, first two links are ajax calls, second is straight up inline HTML. (I originally thought it was the ajax that was affecting it, but that doesn't seem to be the case, I then thought it was slow loading ajax, hence to two differen ajax links) What's crazy is that the jqmodal site itself works perfectly in IE, no flashing of black, but I can't see what I'm doing wrong. Code is straight forward html: <body> <div id="ajaxModal" class="jqmWindow"></div> <div id="inlineModal" class="jqmWindow"> <div style="height:300px;position:relative;"> <p>Here's some inline content</p> <a href="#" onclick='$("#inlineModal").jqmHide();return false;' style="position:absolute;bottom:10px;right:10px">Close</a> </div> </div> <div style="width:600px;height:400px;margin:auto;background:#eee;"> <p><a href="/ajax/short" class="jqModal">Short loading modal</a></p> <br /> <p><a href="/ajax/long" class="jqModal">Longer loading modal</a></p> <br /> <p><a href="#" class="jqInline">inline modal</a></p> </div> </body> Javascript: <script type="text/javascript"> $(function(){ $("#ajaxModal").jqm({ajax:'@href', modal:true}); $("#inlineModal").jqm({modal:true, trigger:'.jqInline'}); }); </script> CSS is exactly the same as the one downloaded from jqModal's site so I'll omit it, but you can see it on my app Has anyone experienced this? I don't get how his works and mine doesn't.

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  • Is it possible to do custom grouping in the ASP.NET ListView control?

    - by michielvoo
    You can only define a GroupItemCount in the ListView, but what if you want to do grouping based on a property of the items in the data source? Sort of an ad-hoc group by. The data source is sorted on this property. I have seen some examples where some markup in the ItemTemplate was conditionally show, but I want to leverage the GroupTemplate if possible. Is this possible?

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  • Why isn't Expression Blend rendering my User Control? It's only showing XAML.

    - by unforgiven3
    I'm opening valid XAML within my VS2008 solution in Expression Blend 3 and it is only showing XAML when I try to open individual XAML files. My solution/projects all build and run correctly. When I go to View - Active Document View the Design View, Split View and XAML View options are all grayed out... which doesn't make much sense. I'm not much of a Blend user, but this has never happened before, and I'm coming up blank for how to fix it. Any ideas?

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  • How to add custom-control-derived TabItem to TabControl in WPF?

    - by orloffm
    I want to have my own base TabItem class and use other classes that derive from it. I define base class in MyNs namespace like this: public class MyCustomTab : TabItem { static MyCustomTab() { DefaultStyleKeyProperty.OverrideMetadata(typeof(MyCustomTab), new FrameworkPropertyMetadata(typeof(TabItem))); } } And this is what I do for the class that inherits from it: code-behind in MyNs namespace: public partial class ActualTab : MyCustomTab { public ActualTab() { InitializeComponent(); } } XAML: <MyCustomTab x:Class="MyNs.ActualTab" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <Grid> </Grid> </MyCustomTab> The error I get is "The tag 'MyCustomTab' does not exist in XML namespace 'http://schemas.microsoft.com/winfx/2006/xaml/presentation'". If I use TabItem tag in XAML the error says that it's not possible to define to different base classes. How to fix this?

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  • Silverlight TabControl - Finding and selecting a TabItem from a given Control in the TabItem.

    - by David Gray Wright
    I am building a LOB application that has a main section and a TabControl with various TabItems in it. On hitting save the idea is that any fields in error are highlighted and the first field in error gets the focus. If the first, and only, field in error is on an Unselected tab the tab should then become selected and the field in error should become highlighted and have focus. But I can not get this to work. What appears to be happening is that the Unselected tab is not in the visual tree so you can't navigate back to the owning TabItem and make it the currently selected TabItem in the TabControl. Has anyone got an idea on how this can be done\achieved?

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  • How to draw onto a PictureBox image when control resizes?

    - by Sam Mackrill
    I am using the pictureBox_Paint event to try and draw an overlay onto the image in a PictureBox. This is working fine until I resize the PictureBox (set to use SizeMode.Zoom), when I do this the overlay graphic is drawn off position by the margin between the image and the edge of the PictureBox. I guess I need to use the ImageRectangle somehow but this is not public.

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  • How to control allowed HTML tags in WMD Editor?

    - by Toto
    I am trying to some-how set the valid HTML tags and attributes users would be able to use in WMD Editor in my site. For example, I want to forbid the user to directly set the font size, color, typeface and so on, which is trivial to do with the default settings typing something like: <span style="font-size: 45px; color:#FF0000">Some intrusive text here</span>. I think the way to implement this is through the "wmd_options", but I have not found any documentation or reference regarding this, giving the fact that the 'Options demo' seems to be the only public documentation and it does not show how should I do what I have described above. I've send this same question to [email protected] but didn't get any reply. As stackoverflow uses this editor someone reading this or maybe Jeff knows the answer ;) Thanks in advance!

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  • ASP.NET Charting control - How to display Y values when no point data is specified?

    - by James
    I have an ASP.NET chart of which the Y value is calculated based on the highest Y value point. The issue I have is if there are no Y points which exceed 0 then I can't get any labels to display. Here is a good day example: Some Name | 23 Some Name | 45 Some Name | 3 -------------- 0% 25% 50% Here is what I am getting if NO Y values are greater than 0 Some Name | Some Name | Some Name | -------------- What I need is for it to display: Some Name |0 Some Name |0 Some Name |0 -------------- 0% 100% Any ideas?

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  • When using a package or framework is there a standard way to use version control?

    - by PurplePilot
    i.e. Do you put the whole package under VCS or just the components you are programming? Packages by there nature will get upgraded and that code will need to be added into the VCS, plus there is a lot of code that is static. Specifically I am going to be working on Joomla, adding and building modules, customising modules and the look and feel. Initially this will be just me but will expand to possibly two more developers as the project ramps up. My reaction would be just to VCS the lot, it means that i know it is all there and deployment via CI is easier(?). The alternative is to exclude the bulk of the code that is not being altered which could be error prone and laborious. As there is not a specific answer for this and i am looking for either experience or best practice advice i have marked it community wiki.

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