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  • Box Selection and Multi-Line Editing with VS 2010

    - by ScottGu
    This is the twenty-second in a series of blog posts I’m doing on the VS 2010 and .NET 4 release. I’ve already covered some of the code editor improvements in the VS 2010 release.  In particular, I’ve blogged about the Code Intellisense Improvements, new Code Searching and Navigating Features, HTML, ASP.NET and JavaScript Snippet Support, and improved JavaScript Intellisense.  Today’s blog post covers a small, but nice, editor improvement with VS 2010 – the ability to use “Box Selection” when performing multi-line editing.  This can eliminate keystrokes and enables some slick editing scenarios. [In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu] Box Selection Box selection is a feature that has been in Visual Studio for awhile (although not many people knew about it).  It allows you to select a rectangular region of text within the code editor by holding down the Alt key while selecting the text region with the mouse.  With VS 2008 you could then copy or delete the selected text. VS 2010 now enables several more capabilities with box selection including: Text Insertion: Typing with box selection now allows you to insert new text into every selected line Paste/Replace: You can now paste the contents of one box selection into another and have the content flow correctly Zero-Length Boxes: You can now make a vertical selection zero characters wide to create a multi-line insert point for new or copied text These capabilities can be very useful in a variety of scenarios.  Some example scenarios: change access modifiers (private->public), adding comments to multiple lines, setting fields, or grouping multiple statements together. Great 3 Minute Box-Selection Video Demo Brittany Behrens from the Visual Studio Editor Team has an excellent 3 minute video that shows off a few cool VS 2010 multi-line code editing scenarios with box selection:   Watch it to learn a few ways you can use this new box selection capability to optimize your typing in VS 2010 even further: Hope this helps, Scott P.S. You can learn more about the VS Editor by following the Visual Studio Team Blog or by following @VSEditor on Twitter.

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  • Javascript: I can get the text of a selection, now how do I get the text outside the selection?

    - by DavidR
    I have a bit of code that returns the text of a selection and I can assign that string to a variable, but now all I need are two variables, one for the text before the selection and one for the text after the selection. Here is the code for getting the selection: function findSelection(){ //returns the selection object. var userSelection; if (window.getSelection) {userSelection = window.getSelection();} // Mozilla Selection object. else if (document.selection){userSelection = document.selection.createRange();} //gets Microsoft Text Range, should be second b/c Opera has poor support for it. if (userSelection.text){return userSelection.text} //for Microsoft Objects. else {return userSelection} //For Mozilla Objects. } Then I find the anchorOffset and focusOffset to find the caret positions. I tried using these to modify a range object, like this: var range = document.createRange(); range.setStart(textdiv,0); range.setEnd(textdiv,5); Where textdiv is a variable holding the last div the user clicked on. The problem is firefox just gives me a "Security error" code: "1000" at the line range.setStart(textdiv,0);. Is there an easier way to go about doing this? I really just need the text and nothing more.

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  • How to do Selection Alignment using the RichTextBox in Silverlight 4?

    - by RoguePlanetoid
    I cannot seem to figure out how to do a Selection Alignment in the new RichTextBox, I have an idea that I need to convert the selection into the Paragraph type which supports alignment, but cannot seem to figure this out. None of the Silverlight examples have this, but I'm sure it is possible. I have this code, that does not work - as I think I need the selection to be a Paragraph as it always returns and Exception "Value does not fall within the expected range". Editor.Selection.SetPropertyValue(Paragraph.TextAlignmentProperty, TextAlignment.Left) I make sure I check for a Valid Selection first, code like the following works for "Bold": If Editor.Selection.Text.Length > 0 Then ' Text Selected If TypeOf Editor.Selection.GetPropertyValue(Run.FontWeightProperty) Is FontWeight _ AndAlso DirectCast(Editor.Selection.GetPropertyValue(Run.FontWeightProperty), FontWeight) = FontWeights.Normal Then Editor.Selection.SetPropertyValue(Run.FontWeightProperty, FontWeights.Bold) Else Editor.Selection.SetPropertyValue(Run.FontWeightProperty, FontWeights.Normal) End If End If Editor.Focus() Example in XAML: <Paragraph TextAlignment="Right">Example</Paragraph> The above works in the contents of a RichTextBox however I need to do this programatically based on a selection - like in WordPad.

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  • [ASP.NET 4.0] Persisting Row Selection in Data Controls

    - by HosamKamel
    Data Control Selection Feature In ASP.NET 2.0: ASP.NET Data Controls row selection feature was based on row index (in the current page), this of course produce an issue if you try to select an item in the first page then navigate to the second page without select any record you will find the same row (with the same index) selected in the second page! In the sample application attached: Select the second row in the books GridView. Navigate to second page without doing any selection You will find the second row in the second page selected. Persisting Row Selection: Is a new feature which replace the old selection mechanism which based on row index to be based on the row data key instead. This means that if you select the third row on page 1 and move to page 2, nothing is selected on page 2. When you move back to page 1, the third row is still selected. Data Control Selection Feature In ASP.NET 3.5 SP1: The Persisting Row Selection was initially supported only in Dynamic Data projects Data Control Selection Feature In ASP.NET 4.0: Persisted selection is now supported for the GridView and ListView controls in all projects. You can enable this feature by setting the EnablePersistedSelection property, as shown below: Important thing to note, once you enable this feature you have to set the DataKeyNames property too because as discussed the full approach is based on the Row Data Key Simple feature but  is a much more natural behavior than the behavior in earlier versions of ASP.NET. Download Demo Project

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  • WPF Radiobutton equivalent

    - by baron
    What is the WPF equivalent for WinForms radio button CheckedChanged? I have your basic 2 radio button set up, where when one is selected a textbox is enabled and when the other is selected it is disabled. For the time being I was using RadioButton_Checked, except, I set IsChecked true for one button in the xaml. When I reference the textbox in that Checked method it throws NullReferenceException... Let me know if you need code.

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  • Winform radiobutton data binding

    - by Rajarshi
    I am following the "Presentation Model" design pattern suggested by Martin Fowler for my GUI architecture in a Windows Forms project. "The essence of a Presentation Model is of a fully self-contained class that represents all the data and behavior of the UI window, but without any of the controls used to render that UI on the screen. A view then simply projects the state of the presentation model onto the glass...." - Martin Fowler Read more about this pattern at www.martinfowler.com/eaaDev/PresentationModel.html I am finding the concept very fluid and easy to understand except this one issue of data binding RadioButtons to properties on the Data/Domain object. Suposing I have a Windows Form with 3 radio buttons to depict some "Mode" options as - Auto Manual Import How can I use boolean properties on Data/Domain Objects to DataBind to these buttons? I have tried many ways but to no avail. For example I would like to code like - rbtnAutoMode.DataBindings.Add("Text", myBusinessObject, "IsAutoMode"); rbtnManualMode.DataBindings.Add("Text", myBusinessObject, "IsManualMode"); rbtnImportMode.DataBindings.Add("Text", myBusinessObject, "IsImportMode"); There should be a fourth property like "SelectedMode" on the data/domain object which at the end should depict a single value like "SelectedMode = Auto". I am trying to update this property when any of the "IsAutoMode", "IsManualMode" or "IsImportMode" is changed, e.g. through the property setters. I have INotifyPropertyChanged implemented on my data/domain object so, updating any data/domain object property automatically updates my UI controls, that's not an issue. There is a good example of binding 2 radio buttons here - http://stackoverflow.com/questions/344964/how-do-i-use-databinding-with-windows-forms-radio-buttons but I am missing the link while implementing the same with 3 buttons. I am having very erratic behaviors for the Radio Buttons. I hope I was able to explain reasonably. I am actually in a hurry and could not put a detailed code on post, but any help in this regard is appreciated. There is a simple solution to this issue by exposing a method like - public void SetMode(Modes mode) { this._selectedMode = mode; } which could be called from the "CheckedChanged" event of the Radio Buttons from the UI and would perfectly set the "SelectedMode" on the business object, but I need to stretch the limits to verify whether this can be done by DataBinding.

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  • Jquery-ajax parse xml and set radiobutton

    - by haltman
    hi everybody, I've a form with some radio button like this: <input type="radio" name="leva" value="a"><input type="radio" name="leva" value="b"> with ajax post method I receive value of the radio. The question is how can I set correct radio value to checked? thanks in advance ciao h.

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  • radiobutton checked on condition in jquery

    - by RememberME
    I have the following fields: <label>Company Type:</label> <label for="primary"><input onclick="javascript: $('#sec').hide('slow');$('#primary_company').find('option:first').attr('selected','selected');" type="radio" runat="server" name="companyType" id="primary" />Primary</label> <label for="secondary"><input onclick="javascript: $('#sec').show('slow');" type="radio" runat="server" name="companyType" id="secondary" />Secondary</label> <div id="sec"> <fieldset> <label for="primary_company">Primary Company:</label> <%= Html.DropDownList("primary_company", Model.SelectPrimaryCompanies, "** Select Primary Company **") %> </fieldset> If there is a primary_company, then the secondary radio button should be selected. If there is no primary_company, then the primary radio button should be selected. Here is my jQuery: $(document).ready(function() { if ($('#primary_company').val().length > 0) { $('#secondary').attr({ checked: true }); } else { $("#primary").attr('checked', true ); $('#sec').hide(); } The sec div hides and shows properly, but a radio button is never selected. I've tried .attr('checked', 'checked') and .attr({ checked: true }) and .attr('checked', true) but nothing is ever selected.

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  • Radio Button selection Changes Toast on Android

    - by Bub
    I was writing a simple test application. There are two radio buttons within the app. There id's are "radio_red" and "radio_blue". I wanted to create an onClickListener event that read the text associated to the button and then returned a basic "Right" or "Wrong" toast. Here is a sample of the code: private OnClickListener radio_listener = new OnClickListener() { public void onClick(View v){ RadioButton rb = (RadioButton) v; String ans = rb.getText().toString(); String an1 = ""; if (ans.trim() == "Yes") { ans = "That's Right."; } else if (ans.trim() == "No") { ans = "thats wrong."; } else { ans = "none."; } Toast.makeText(v.getContext(), ans , Toast.LENGTH_SHORT).show(); } So far no joy. Here is my code snippet. I've checked my "main.xml" and the text associated to the buttons are referneced correctly. I added trim to make sure of that. However, all that is ever returned in the toast is "none." What am I missing? Thanks in advance for any help.

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  • Publishing selection in eclipse RCP

    - by Stuart
    I'm writing an RCP application plug-in. I want to make a set of objects the global selection from a IHandler but this can be triggered from other views out of my control - it is possible that these do not have an ISelectionProvider. Is it possible to publish a selection to the eclipse selection service without going through some view site?

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  • WPF Single Selection Across Multiple ItemsControls

    - by gregsdennis
    Part of my app has a month-view calendar interface, but I'm having trouble with item selection. The interface is set up so that each of the days in the view contains a ListBox of items, much like the month view in Outlook. The problem I'm experiencing is that I need to maintain a single item selection across all of the ListBoxes. Below is a sample window that should adequately describe my situation. I need to maintain a single selection between both ListBoxes. <Window x:Class="StackOverflow.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition /> <ColumnDefinition /> </Grid.ColumnDefinitions> <ListBox ItemsSource="{Binding Numbers}" SelectedItem="{Binding SelectedObject"/> <ListBox Grid.Column="1" ItemsSource="{Binding Dates}" SelectedItem="{Binding SelectedObject"/> </Grid> </Window> In this primitive example, I would expect that when the SelectedObject property of my view model gets set to an item that's not in one ListBox, the selection would be removed in that ListBox, but that doesn't happen. I understand that I can simply name each ListBox, and hook into the SelectionChanged event. I'd prefer to not have to do that with an entire month-view calendar. There has to be a better way. In a previous iteration of the app, I was able to create a SelectionManager static class with an attached property that was used to maintain selection. However, I can't use this now as the classes I'm using for my items are not DependencyObjects, and I'd really prefer not to have to create DependencyObject wrapper classes as this will considerably complicate my architecture. Thanks.

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  • disabling "block selection" on an iPhone

    - by G. Shearer
    I am building an app for iPhone that has javascript running in a webview. When the new auto-select block selection tool is used to select text, and the block is resized from the side, it makes my javascript freak out. Does anyone know a way to disable the copy/paste for block selection? I still need to be able to select text, just not using the big selection tool. Thanks

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  • Retrieve GWT radiobutton value in servlet

    - by Florian d'Erfurth
    Hi, I'm having a headache figuring how to retrieve the gwt Radio Buttons values in the server side. Here is my UiBinder form: <g:FormPanel ui:field="form"><g:VerticalPanel ui:field="fruitPanel"> <g:RadioButton name="fruit">apple</g:RadioButton> <g:RadioButton name="fruit">banana</g:RadioButton> <g:SubmitButton>Submit</g:SubmitButton> ... Here is how i initialize the form: form.setAction("/submit"); form.setMethod(FormPanel.METHOD_POST); So i though i would have to do this on the servlet: fruit = req.getParameter("fruit") But of course this doesn't work, parameter fruit doesn't exist :/ Edit: Ok i get parameter fruit but it's always "on" I also did try to add the radio button in java with: RadioButton rb0 = new RadioButton("fruit", "apple"); RadioButton rb1 = new RadioButton("fruit", "banana"); fruitPanel.add(rb0); fruitPanel.add(rb1); So how should i do?

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  • Preventing multiple repeat selection of synchronized Controls ?

    - by BillW
    The working code sample here synchronizes (single) selection in a TreeView, ListView, and ComboBox via the use of lambda expressions in a dictionary where the Key in the dictionary is a Control, and the Value of each Key is an Action<int. Where I am stuck is that I am getting multiple repetitions of execution of the code that sets the selection in the various controls in a way that's unexpected : it's not recursing : there's no StackOverFlow error happening; but, I would like to figure out why the current strategy for preventing multiple selection of the same controls is not working. Perhaps the real problem here is distinguishing between a selection update triggered by the end-user and a selection update triggered by the code that synchronizes the other controls ? Note: I've been experimenting with using Delegates, and forms of Delegates like Action<T>, to insert executable code in Dictionaries : I "learn best" by posing programming "challenges" to myself, and implementing them, as well as studying, at the same time, the "golden words" of luminaries like Skeet, McDonald, Liberty, Troelsen, Sells, Richter. Note: Appended to this question/code, for "deep background," is a statement of how I used to do things in pre C#3.0 days where it seemed like I did need to use explicit measures to prevent recursion when synchronizing selection. Code : Assume a WinForms standard TreeView, ListView, ComboBox, all with the same identical set of entries (i.e., the TreeView has only root nodes; the ListView, in Details View, has one Column). private Dictionary<Control, Action<int>> ControlToAction = new Dictionary<Control, Action<int>>(); private void Form1_Load(object sender, EventArgs e) { // add the Controls to be synchronized to the Dictionary // with appropriate Action<int> lambda expressions ControlToAction.Add(treeView1, (i => { treeView1.SelectedNode = treeView1.Nodes[i]; })); ControlToAction.Add(listView1, (i => { listView1.Items[i].Selected = true; })); ControlToAction.Add(comboBox1, (i => { comboBox1.SelectedIndex = i; })); } private void synchronizeSelection(int i, Control currentControl) { foreach(Control theControl in ControlToAction.Keys) { // skip the 'current control' if (theControl == currentControl) continue; // for debugging only Console.WriteLine(theControl.Name + " synchronized"); // execute the Action<int> associated with the Control ControlToAction[theControl](i); } } private void treeView1_AfterSelect(object sender, TreeViewEventArgs e) { synchronizeSelection(e.Node.Index, treeView1); } private void listView1_SelectedIndexChanged(object sender, EventArgs e) { // weed out ListView SelectedIndexChanged firing // with SelectedIndices having a Count of #0 if (listView1.SelectedIndices.Count > 0) { synchronizeSelection(listView1.SelectedIndices[0], listView1); } } private void comboBox1_SelectedValueChanged(object sender, EventArgs e) { if (comboBox1.SelectedIndex > -1) { synchronizeSelection(comboBox1.SelectedIndex, comboBox1); } } background : pre C# 3.0 Seems like, back in pre C# 3.0 days, I was always using a boolean flag to prevent recursion when multiple controls were updated. For example, I'd typically have code like this for synchronizing a TreeView and ListView : assuming each Item in the ListView was synchronized with a root-level node of the TreeView via a common index : // assume ListView is in 'Details View,' has a single column, // MultiSelect = false // FullRowSelect = true // HideSelection = false; // assume TreeView // HideSelection = false // FullRowSelect = true // form scoped variable private bool dontRecurse = false; private void treeView1_AfterSelect(object sender, TreeViewEventArgs e) { if(dontRecurse) return; dontRecurse = true; listView1.Items[e.Node.Index].Selected = true; dontRecurse = false; } private void listView1_SelectedIndexChanged(object sender, EventArgs e) { if(dontRecurse) return // weed out ListView SelectedIndexChanged firing // with SelectedIndices having a Count of #0 if (listView1.SelectedIndices.Count > 0) { dontRecurse = true; treeView1.SelectedNode = treeView1.Nodes[listView1.SelectedIndices[0]]; dontRecurse = false; } } Then it seems, somewhere around FrameWork 3~3.5, I could get rid of the code to suppress recursion, and there was was no recursion (at least not when synchronizing a TreeView and a ListView). By that time it had become a "habit" to use a boolean flag to prevent recursion, and that may have had to do with using a certain third party control.

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  • Flex ; get the value of RadioButton inside a FormItem

    - by numediaweb
    Hi, I'm working on Flash Builder with latest flex SDK. I have a problem getting the value radioButton of the selceted radio button inside a form: <mx:Form id="form_new_contribution"> <mx:FormItem label="Contribution type" includeIn="project_contributions"> <mx:RadioButtonGroup id="myG" enabled="true" /> <mx:RadioButton id="subtitle" label="subtitle" groupName="{myG}" value="subtitle"/> <mx:RadioButton id="note" label="notes / chapters" groupName="{myG}" value="note"/> </mx:FormItem> </mx:Form> the function is: protected function button_add_new_clickHandler(event:MouseEvent):void{ Alert.show(myG.selectedValue.toString()); } I tried also: Alert.show(myG.selection.toString()); bothe codes show error: TypeError: Error #1009: Cannot access a property or method of a null object reference. and if It only works if I put : Alert.show(myG.toString()); it alerts : Object RadioButtonGroup thanx for any hints, and sorry for the long message :)

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  • Rails: radio button selection for nested forms objects

    - by satynos
    I have the following form for photo_album which uses the nested forms feature of the Rails in saving the photos while updating the photo_album. And having trouble with the selection of radio button value. I want only one of the photos be able to select as the album cover, but due to the way rails produces form element ids and names, I am able to select all of the photos as album covers. Is there any workaround? <% form_for @photo_album do |f| %> <%= f.error_messages %> <% @photo_album.photos.each do |photo| %> <% f.fields_for :photos, photo do |photo_fields| %> <p> <%= image_tag url_for_image_column(photo, "data", :thumb) %> </p> <p> <%= photo_fields.label :title %> <%= photo_fields.text_field :title %> </p> <p> <%= photo_fields.label :body %> <%= photo_fields.text_area :body %> </p> <p> <%= photo_fields.radio_button :cover, "1" %> <%= photo_fields.label :cover, 'Album Cover', :class => 'option' %> <%= photo_fields.check_box :_delete %> <%= photo_fields.label :_delete, 'Delete', :class => 'option' %> </p> <% end %> <% end %> <p> <%= f.submit @photo_album.new_record? ? 'Create' : 'Update' %> </p> <% end %> And following is the html produced by rails (which is part of the problem) for radio buttons: <p> <input type="radio" value="1" name="photo_album[photos_attributes][0][cover]" id="photo_album_photos_attributes_0_cover_1"/> <label for="photo_album_photos_attributes_0_cover" class="option">Album Cover</label> <input type="hidden" value="0" name="photo_album[photos_attributes][0][_delete]"/><input type="checkbox" value="1" name="photo_album[photos_attributes][0][_delete]" id="photo_album_photos_attributes_0__delete"/> <label for="photo_album_photos_attributes_0__delete" class="option">Delete</label> </p>

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  • Android Spinner selection

    - by Arutha
    The OnItemSelectedListener event handler gets called both when a spinner selection is changed programmatically, and when a user physically clicks the spinner control. Is is possible to determine if an event was triggered by a user selection somehow? Or is there another way to handle spinner user selections?

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  • Set textarea selection in Internet Explorer

    - by Tatu Ulmanen
    I'm looking for a way to set a selection in a textarea in Internet Explorer. In other browsers, this works just fine: textarea.selectionStart = start; textarea.selectionEnd = end; In IE, I assume I have to use createRange and adjust the selection somehow, but I cannot figure out how. Extra bonus points for a link to a proper documentation about createRange and associated methods, MSDN isn't helping out much.

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  • Dynatree multi - selection implementaion ala Windows style

    - by gnomixa
    I would like to implement windows style multi-selection: when user holds CTRL key and selects several nodes of the tree. Dynatree (from here http://wwwendt.de/tech/dynatree/doc/dynatree-doc.html) by default has checkboxes for node selection which my client doesn't seem to like. My question is, is it possible to implement what I need using provided set of callbacks? also, curently, when I hold CTRL key and click on the node, it opens a new window. Is there any way to suppress this functionality? i am guess I would have to do through CSS?

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  • Retrieve GWT radiobutton value in server from the request

    - by Florian d'Erfurth
    Hi, I'm having a headache figuring how to retrieve the gwt Radio Buttons values in the server side. Here is my UiBinder form: <g:FormPanel ui:field="form"><g:RadioButton name="fruit">apple</g:RadioButton><g:RadioButton name="fruit">banana</g:RadioButton> ... So i though i would have to do this on the servlet: fruit = req.getParameter("fruit") But of course this doesn't work, parameter fruit doesn't exist :/ So how should i do?

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  • Android: Enable selection in webkit

    - by tacone
    Hello, I'am looking for a way to have a webview content selectable in the very same way as the stock browser does. user long presses the text the whole word is selected two pins appear at the word's boundary allowing the user to stretch/shrink the selection. I should note that Dolphin HD shows exactly the same text select functionality as the default browser (same icons, animation, etc), so it really should be possible. But I can't figure out how. Until now, all i found was this function, which kind of work, but doesn't allow the user to expand/shrink the selection. public void selectAndCopyText() { try { KeyEvent shiftPressEvent = new KeyEvent(0,0,KeyEvent.ACTION_DOWN,KeyEvent.KEYCODE_SHIFT_LEFT,0,0); shiftPressEvent.dispatch(mWebView); } catch (Exception e) { throw new AssertionError(e); } }

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