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  • Web Page Design Get Distorted in Desktop PC Monitor

    - by Tarik
    I am building my web application on my laptop but when I navigate the page on my desktop pc the layout of the div are distorted. I think the solution is giving percentage instead of absolute numbers like 240px to height and width of divs. What do you think ? Do you have another recommendations ? Thanks in advance. What I've done is : <div style="height:240px;width:240px"></div> What I think I have to do is : <div style="height:100%;width:90%"></div>

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  • Value of text box disapears - binding viewmodel to a tab (content control)

    - by Eli Perpinyal
    Based on the MVVM example by Josh Smith, I have implemented the multi tab option which binds to a different tab to a different view model using a simple datatemplate that binds a viewmodel to a view. <DataTemplate DataType="{x:Type fixtureVM:SearchViewModel}"> <SearchVw:SearchView/> </DataTemplate> The issue that I'm having, is when I switch tabs and then switch back again, the value in the textbox disappears. When I bind the Text in the textbox to a value in the ViewModel it does not disappear. This is fine, and I can overcome this but I am having another issue for example with the position of the scroll bar in a grid disappearing once the tab has lost focus. Why is the value disappearing? I'm assuming it is a WPF sub system task that cleans up resources!? how can I avoid this? I also feel it might be slowing down my app.

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  • EntityFramework EntityState and databinding along with INotifyPropertyChanged

    - by OffApps Cory
    Hello, all! I have a WPF view that displays a Shipment entity. I have a textblock that contains an asterisk which will alert a user that the record is changed but unsaved. I originally hoped to bind the visibility of this (with converter) to the Shipment.EntityState property. If value = EntityState.Modified Then Return Visibility.Visible Else Return Visibility.Collapsed End If The property gets updated just fine, but the view is ignorant of the change. What I need to know is, how can I get the UI to receive notification of the property change. If this cannot be done, is there a good way of writing my own IsDirty property that handles editing retractions (i.e. if I change the value of a property, then change it back to it's original it does not get counted as an edit, and state remains Unchanged). Any help, as always, will be greatly appreciated. Cory

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  • Show underlying applications mouse cursor when hovering over visible section of my application.

    - by Dylan Vester
    I am writing a WPF application that allows the user to draw over the entire screen when the right mouse button is held down. I use a full screen transparent overlay form to achieve this, however, as I draw lines with the mouse, what's happening is that the portion of my window that contains the line is becoming visible (as expected). The undesired effect of this is that if the line is over a part of another application such as a textbox, or hyperlink, this changes the cursor back to the default cursor my my app (arrow), instead of the other applications desired cursor (IBeam). I want my overlay to be seamless to the user, and just show their drawing path, rather than have any interaction with the mouse cursor. See my example below:

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  • MVVM in a canvas with usercontrols

    - by Mauro Destro
    I have a MVVM WPF application that basically wants to be a single line diagram designer for an electrical distribution network. I have a canvas that must contains transformers, circuit breaker, lines and cables. My big problem is the design... How can i start? I think about a DesignerView, DesignerViewModel that contains an ObservableCollection of IDesignerItemViewModel that is my base class for all the element. But in this case I have to use ItemsControl to bind the content of the canvas to my collection but the pros is that I don't have to create usercontrol for each element but i'll solve most of the problems with DataTemplate (i suppose). Each element viewmodel mantain a link to a model persisted in a repository where i mantain my logical tree. Any hint about how to proceed, I have looked at many DiagramCanvas example but all of those use simple items most like simple rectangle...

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  • UI-Automation cmdlet not finding the control

    - by sc_ray
    Hi, I am trying to test a WPF application using the UI-Automation framework that MSFT provides. There were a few powershell scripts written that invoked the cmdlets created to manipulate the visual controls of the application. There is a DropDown within my application that has an entry 'DropDownEntry'. In my cmdlet, I am trying to do something as follows: AutomationElement getItem = DropDown.FindFirst(TreeScope.Descendants, new AndCondition( new PropertyCondition(AutomationElement.ControlTypeProperty,ControlType.ListItem), new PropertyCondition(AutomationElement.NameProperty, "DropDownEntry",PropertyConditionFlags.IgnoreCase))); The above given snippet returns 'null' upon execution which essentially means that the above given logic was unable to find my dropdown entry. Can somebody tell me why this might be happening? I checked the name of my control and the values. Everything seems to be in order. I am not sure why this would be happening. Any help would be much appreciated. Thanks

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  • When would ShowDialog() return null?

    - by Joe White
    WPF's Window.ShowDialog method returns a nullable boolean. So does CommonDialog.ShowDialog. Now, I understand cases where these would return false (user clicked Cancel or pressed Esc), and when they would return true (code sets Window.DialogResult to true, probably in response to OK being clicked). But null? My first thought is that clicking the title bar's Close button might return null. But the docs state (and I confirmed by testing) that the title-bar Close button is treated as a Cancel. So when would Window.ShowDialog or CommonDialog.ShowDialog ever return null?

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  • Finding specific pixel colors of a BitmapImage

    - by Andrew Shepherd
    I have a WPF BitmapImage which I loaded from a .JPG file, as follows: this.m_image1.Source = new BitmapImage(new Uri(path)); I want to query as to what the colour is at specific points. For example, what is the RGB value at pixel (65,32)? How do I go about this? I was taking this approach: ImageSource ims = m_image1.Source; BitmapImage bitmapImage = (BitmapImage)ims; int height = bitmapImage.PixelHeight; int width = bitmapImage.PixelWidth; int nStride = (bitmapImage.PixelWidth * bitmapImage.Format.BitsPerPixel + 7) / 8; byte[] pixelByteArray = new byte[bitmapImage.PixelHeight * nStride]; bitmapImage.CopyPixels(pixelByteArray, nStride, 0); Though I will confess there's a bit of monkey-see, monkey do going on with this code. Anyway, is there a straightforward way to process this array of bytes to convert to RGB values?

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  • Proper implementation of NLog and Prism

    - by WiT8litZ
    What would be the best way to implement NLog in my Prism / CAL WPF application. This might be an amateur question, I am a bit new to the whole Prism framework :) I thought about putting the reference to the NLog dll in the Infrastructure module and make a wrapper singleton class e.g. MyLogger. My thinking was to be able to have the reference to 1 logger implementation somewhere in a central place that everything has reference to, and the only thing that I know of in Prism would be your Infrastructure module. The obvious other way is to add a reference to NLog to each module but I think that would defeat the purpose of decoupling and all of that. Any ideas would be most helpful Regards

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  • Content display problems when using Suckerfish menus with 960.gs and IE

    - by Cedar Jensen
    I'm using 960.gs layout and when I add the suckerfish menu as part of the content to one of the grids, the contents of adjacent siblings bleed through the menu in all versions of IE. In the listed html below, the text from 'belowFoldSection' will appear through the menu when it is visible and has enough items to make it span over 2nd section. However, the contents of 'introSummary' will be underneath the menu, as expected. I've set the z-index for #nav and #nav ul in my css and this of course makes it work in FF, Chrome and Safari, but not in IE (because IE incorrectly assigns child elements its own z-index). If I change the .grid_nn class 'position' attribute (set by default in the 960 template) from 'relative' to absolute, this fixes it in IE. However, it is my understanding that I don't want the child elements of the 'container_12' to be taken out of the flow of the document and want them positioned relative to the .container_12's starting point. (Changing the attribute to absolute causes other general layout problems) Can anyone suggest a work-around? My html: <div class="container_12"> <!--First section where menu lives--> <div class="grid_12" id="mainSection"> <div class="grid_4 alpha" id="intro"> <p>Start of menu here</p> <div id="subMenu"> <ul id="nav"> <li><a href="#">Item 1</a> <ul> <li><a href="#">Burrowing gobies</a></li> <li><a href="#">Dartfishes</a></li> <li><a href="#">Eellike gobies</a></li> <!--10 more for longer list --> </ul> </li> <li><a href="#">Item 2</a> <ul> <li><a href="#">Remoras</a></li> <li><a href="#">Tilefishes</a></li> <!--10 more for longer list --> </ul> </li> <li><a href="#">Item 3</a> <ul> <li><a href="#">Climbing perches</a></li> <li><a href="#">Labyrinthfishes</a></li> <li><a href="#">Kissing gouramis</a></li> <!--10 more for longer list --> </ul> </li> </ul> <div id="introSummary"> <h1>PERCIFORMES! (1)</h1> <p>Welcome to the world of Perciformes - perch-like fish including the world famous <strong>Suckerfish</strong></p> </div> </div> <!-- end of sub menu --> </div> <div class="grid_8 omega" id="summary"> <p>Some stuff goes here</p </div> </div> <!-- End of first section --> <div class="clear">&nbsp;</div> <div class="grid_12 spacer"> </div> <div class="grid_4" id="belowFoldSection"> <p>Here is some stuff I want to appear below the menu when the pop-up is visible</p> </div> </div> <!-- container_12 --> The suckerfish css file: #nav, #nav ul { /* all lists */ padding: 0; margin: 0; list-style: none; line-height: 1; z-index: 99; } #nav a { display: block; width: 10em; } #nav li { /* all list items */ float: left; width: 10em; } #nav li ul { /* second-level lists */ position: absolute; background: orange; width: 10em; left: -999em; } #nav li:hover ul, #nav li.sfhover ul { /* lists nested under hovered list items */ left: auto; } Default 960.gs css: .container_12, .container_16 { margin-left: auto; margin-right: auto; width: 960px; } .grid_1, .grid_2, .grid_3, .grid_4, .grid_5, .grid_6, .grid_7, .grid_8, .grid_9, .grid_10, .grid_11, .grid_12, .grid_13, .grid_14, .grid_15, .grid_16 { display: inline; float: left; position: relative; margin-left: 10px; margin-right: 10px; }

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  • Calling "function" on control

    - by Sascha
    Hi, I'm using MVVM in my WPF project. Now I want to display a subwindow when someone presses a button. To achieve this classically I would call the Show() method. What I want now, to keep my application clear, is to bind the button to the Show() function of the subwindow. As the button click (menu click, whatever) is not always allowed I wrote a custom command that evaluates if the command can be executed. However, I did not found a clue how to call the function of that control in a clean way. Is this the point to do some classic style (code in the frontend)? -sa

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  • Problem with sizes of EditText and Button in Android

    - by DixieFlatline
    I want to make the edittext width the same size as button. My EditText is currently very small. I use relative layout. <TextView android:id="@+id/aha4" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="17dip" android:text="Vzdevek:" android:layout_below="@id/aha3" /> <EditText android:id="@+id/nick" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_below="@id/nivo" android:layout_toRightOf="@id/aha4"/> <Button android:id="@+id/poslji" android:text="Pošlji" android:layout_height="wrap_content" android:layout_width="20dip" android:typeface="serif" android:textStyle="bold" android:layout_alignParentRight="true" android:layout_below="@id/nivo" android:layout_toRightOf="@id/nick"/> What i currently get is this: What is the appropriate layout_width for edittext and button?

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  • Building Visual studio like application, need inputs..

    - by akjoshi
    Hi, I am working on a Visual studio like application i.e. hava a tolbox, an editor and property grid similar to VS. ser can drag and drop the controls(custom and third party) to the editor window and perform operations like resize, move, align, group etc.; Properties of that control needs to be displayed in property grid and user can update them from there. As per my current understanding I will have to extend the Canvas to create my own editor and and Interface for controls which it supports; Each supported control will have to implemnt this interface so that it can be placed in our editor. Something similar to this - http://www.codeproject.com/KB/WPF/WPFDiagramDesigner_Part4.aspx Looking forward for any kind of help, comment or links.

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  • Using IDataErrorInfo and setting Validation.HasError style

    - by Gaurav
    In WPF using IDataErrorInfo and Style I want to create form where I can provide end user three different status while validating data To make the scenario more clear 1) I have textbox next to it I have icon which provides end user what kind of input textbox expects - Initial status with information icon 2) As soon as user enter data it validates it and decides whether it is valid or not - most of the time it will show cross (X) icon saying invalid data 3) As it is validating on UpdateSourceTrigger="PropertyChanged" it will turn cross icon to green check mark as soon as it gets validated i.e [ ] i (tooltip- Any valid user name ) [Ga ] X (tooltip- Invalid user name. Must be 5 char long) [Gaurav ] * (it will show only correct icon, meaning valid value) How can I achieve this using IDataErrorInfo and Style, I tried doing that but as soon as my form gets loaded it invalidates all the data and shows cross icon at the first time. I want to show different tooltip and different icon for three states (Initial info, Invalid data, Valid data)

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  • Entity Framework - Using a lookup (picklist) table with a lookup key

    - by Dave
    I'm working on a WPF application that is working well using the Entity Framework (3.5 SP1) for complicated table structures. The problem now is I want to get a list from the EF that includes lookups into a picklist table that has multiple picklists in it. In SQL I would write a sub select as such: SELECT Name, (Select typeName from PickLists where type_id = items.type_id and picklist_key=333) as Type_desc FROM Items There are no Foreign keys for this, and the picklists table is never updated using the EF, so it is read only as far as the EF is concerned. I'm not sure the best method to put this into the model if at all. I'm displaying in a read-only datagrid on a dashboard. Thanks!

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  • How to place a Linearlayout at bottom inside a Relativelayout in android

    - by SANDHYA
    I need to place a linear layout at bottom inside a relativelayout which is the top most parent in xml. How can i do this? Please help me. <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/background" android:orientation="vertical" > <RelativeLayout ....... <<--- this should occupy total available space </Relativelayout <Linearlayout ....... <<-- this should place at bottom always with height 50dp </LineaLayout> </ReltiveLayout>

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  • How to determine direction of navigation from IE WebBrowser (IHtmlWindow2 or Javascript)

    - by Geoff Cox
    I'm uisng the WPF Web Browser control and when it fires the Navigating event, the event args always contain NavigationMode.New. It should be set to NavigationMode.Back if the user chooses to 'Go Back' from the web control. So its off to the COM ActiveX control underneath to determine the direction of navigation. I've been looking at IHtmlWindow2 and IHtmlDocument2 and IOmHistory, but don't see anything that happens on navigation to tell me if the navigation is caused by going back, forward, a new address, or a refresh. Since IHtmlWindow and Javascript have the same DOM, maybe someone knows how from Javascript. I've also been looking at the IWebBrowser2 interface, but can't find anything there either. Is there an event or property I need to inspect?

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  • Adjust a Control Template and still respect the Theme of the OS?

    - by bitbonk
    In WPF how do I modifiy the template for a standard control in a way that it will respect the current Theme of the Operating System later on? If I just "edit a copy" of the template in blend, it will just give me the template of the currently running theme. Is this correct? So when I apply the modified template and run the app on different themes it will always look the same. For custom controls and even for data templates the problem is similar. How do I provide a template that respects all possible themes of the OS?

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  • ClickOnce application configured to perform updates programmatically still sometimes displays the Cl

    - by Tom Hall
    We have a WPF application deployed using ClickOnce which checks for and performs updates programmatically on application startup. This generally behaves perfectly except for the case where the user chooses "No" to our "Do you wish to update?" prompt. In this case, the next time the user launches the application (consistently) the ClickOnce framework's "Update Available" dialog launches with the option to update or skip. This doesn't cause a technical problem but will be confusing to the user to potentially see two completely differently styled dialogs. (If the user chooses Skip to the ClickOnce dialog then the application then launches and renders our own "Update Available" dialog). Any ideas why the ClickOnce framework dialog is showing in this case? Thanks.

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  • Graphviz DOT arange Nodes in circles

    - by Ivo Wetzel
    OK here's my problem, I'm generating a graph of a python module, including all the files with their functions/methods/classes. I want to arrange it so, that nodes gather in circles around their parent nodes, currently everything is on one gargantuan horizontal row, which makes the thing 50k pixels wide and also let's the svg converter fail(only renders about the half of the graph). I went trough the docs(http://www.graphviz.org/doc/info/attrs.html) but couldn't find anything that seems to do the trick. So the question is: Is there a simple way to do this or do I have to layout the whole thing by myself? :/

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  • Using SketchFlow to prototype MS Surface Applications

    - by Isak Savo
    Hi We're doing mockups/prototyping on a MS Surface device and I wonder if anyone has succeeded in using SketchFlow for this. The problem that I see is that the code generated by the tool uses normal WPF controls (Button, etc.) instead of the contact aware surface counterparts (SurfaceButton) which means that they won't work nice on the surface unless you also use a mouse. Additionally, it would be nice if it was possible to hook in to other gesture events to trigger sketchflow transitions. Like the pinch gestures to switch page etc. Has anyone had any success with prototyping for Surface using Sketchflow. If so, how did you do it?

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  • MVVM with animations (should I use VisualStateManager?)

    - by kennethkryger
    I've got a View.xaml with the following set in Resources-section: <DataTemplate DataType="{x:Type ViewModels:MyFirstViewModel}"> <Views:MyFirstView Content="{Binding}" /> </DataTemplate> <DataTemplate DataType="{x:Type ViewModels:MySecondViewModel}"> <Views:MySecondView Content="{Binding}"/> </DataTemplate> In the content of the View.xaml I have: <!-- SelectedMyViewModel is either set to MyFirstViewModel or MySecondViewModel --> <ContentControl Content="{Binding SelectedMyViewModel}" /> When the SelectedMyViewModel changes I'd like to have a animation, so that the current view is faded out and the new view is faded in... Somehow I feel this should be possible via the VisualStateManager - but I can't figure out how! This is a WPF 4.0 project...

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  • how should I order my divs?

    - by aslum
    Here's the basic layout of a page I'm working on: What would be the best/easiest way to order the divs? C may or may not be visible (it's a news alert that only displays when there is news). A = Header, B = Menu, E&F = standard content columns, D = latest blog post. I'm thinking ABCEFD might make the most sense, but I could also see ABCDEF. Either of those should be fairly easy to do right using floats... is there a better way? Maybe put CEF inside a "middle column" div?

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  • Change background color of disabled listbox in windows classic theme

    - by Mercury821
    I am developing a WPF application that must run using Windows Classic theme. The application creates a dialog box containing a ListBox. When the dialog box is shown, it must be disabled for 1s before accepting any input. I am accomplishing this with a style trigger, and it works. However, the ListBox shows a white background when it's disabled, which I can't seem to get rid of. When using the aero theme, the following style resource fixes the issue: <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="Transparent"/> But when using Windows Classic theme, the white background reappears. How can i remedy the situation for Classic theme???

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  • image and text in listobx

    - by Anu
    I want to inesrt one image beside one text,like this i have to include three items in listbox. in run time. If the number of items is more than 3,then the last items get removed. How can i do that in WPF,C#. And the newly added item should get added in first place. Now i did up to include text at runtime. if (listBox1.Items.Count >= 3) listBox1.Items.RemoveAt(2); listBox1.Items.Insert(0,lData); But i do nto know how to insert image(small rectangle with red colr,green color)

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