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  • SQL Server won't perform regular expression validation on XML column

    - by Kirk Broadhurst
    Hi I have an XML column in my table which contains this xsd snippet: <xsd:element name="Postcode" minOccurs="0"> <xsd:simpleType> <xsd:restriction base="xsd:string"> <xsd:pattern value="^[0-9]{4}$" /> </xsd:restriction> </xsd:simpleType> </xsd:element> The regular expression should require a string containing 4 numerical digits. It validates perfectly in Visual Studio and is a correct regular expression. SQL Server, on the other hand, won't accept it. The error message I receive is: XML Validation: Invalid simple type value: '1234'. Location: / * : Donor[1]/*:Postcode[1]. I have an email address regex working fine, but can't get this simple numerical regex to work.

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  • Updating extra attributes in a has_many, :through relationship using Rails

    - by Robbie
    I've managed to set up a many-to-many relationship between the following models Characters Skills PlayerSkills PlayerSkills, right now, has an attribute that Skills don't normally have: a level. The models look something like this (edited for conciseness): class PlayerSkill < ActiveRecord::Base belongs_to :character belongs_to :skill end class Skill < ActiveRecord::Base has_many :player_skills has_many :characters, :through => :player_skills attr_accessible :name, :description end class Character < ActiveRecord::Base belongs_to :user has_many :player_skills has_many :skills, :through => :player_skills end So nothing too fancy in the models... The controller is also very basic at this point... it's pretty much a stock update action. The form I'm looking to modify is characters#edit. Right now it renders a series of checkboxes which add/remove skills from the characters. This is great, but the whole point of using has_many :through was to track a "level" as well. Here is what I have so far: - form_for @character do |f| = f.error_messages %p = f.label :name %br = f.text_field :name %p = f.label :race %br = f.text_field :race %p = f.label :char_class %br = f.text_field :char_class %p - @skills.each do |skill| = check_box_tag "character[skill_ids][]", skill.id, @character.skills.include?(skill) =h skill.name %br %p = f.submit After it renders "skill.name", I need it to print a text_field that updates player_skill. The problem, of course, is that player_skill may or may not exist! (Depending on if the box was already ticked when you loaded the form!) From everything I've read, has_many :through is great because it allows you to treat the relationship itself as an entity... but I'm completely at a loss as to how to handle the entity in this form. As always, thanks in advance for any and all help you can give me!

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  • JavaScript: Given an offset and substring length in an HTML string, what is the parent node?

    - by Bungle
    My current project requires locating an array of strings within an element's text content, then wrapping those matching strings in <a> elements using JavaScript (requirements simplified here for clarity). I need to avoid jQuery if at all possible - at least including the full library. For example, given this block of HTML: <div> <p>This is a paragraph of text used as an example in this Stack Overflow question.</p> </div> and this array of strings to match: ['paragraph', 'example'] I would need to arrive at this: <div> <p>This is a <a href="http://www.example.com/">paragraph</a> of text used as an <a href="http://www.example.com/">example</a> in this Stack Overflow question.</p> </div> I've arrived at a solution to this by using the innerHTML() method and some string manipulation - basically using the offsets (via indexOf()) and lengths of the strings in the array to break the HTML string apart at the appropriate character offsets and insert <a href="http://www.example.com/"> and </a> tags where needed. However, an additional requirement has me stumped. I'm not allowed to wrap any matched strings in <a> elements if they're already in one, or if they're a descendant of a heading element (<h1> to <h6>). So, given the same array of strings above and this block of HTML (the term matching has to be case-insensitive, by the way): <div> <h1>Example</a> <p>This is a <a href="http://www.example.com/">paragraph of text</a> used as an example in this Stack Overflow question.</p> </div> I would need to disregard both the occurrence of "Example" in the <h1> element, and the "paragraph" in <a href="http://www.example.com/">paragraph of text</a>. This suggests to me that I have to determine which node each matched string is in, and then traverse its ancestors until I hit <body>, checking to see if I encounter a <a> or <h_> node along the way. Firstly, does this sound reasonable? Is there a simpler or more obvious approach that I've failed to consider? It doesn't seem like regular expressions or another string-based comparison to find bounding tags would be robust - I'm thinking of issues like self-closing elements, irregularly nested tags, etc. There's also this... Secondly, is this possible, and if so, how would I approach it?

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  • IE z-index relative/absolute bug in list

    - by AJM
    I have the following navigation where .topNav has position:relative and subnav has position:absolute. I cant get the sublist to appear over the main list due to z-index problems. This seems to be a known problem. <ul> <li class="topNav">About Us <ul class="subNav"><li> Subsection A</li><li>Subsection B</li></ul> </li> </ul> Does anyone know of a workaround? UPDATE http://brh.numbera.com/experiments/ie7_tests/zindex.html shows exacly the problem I have. My original posting was in the context of a list but I have reduced the problem to the fact that z-index dosn't seem to work when have an element with position:absolute inside a parent element with position:relative

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  • Weirdest occurence ever, UIButton @selector detecting right button, doing wrong 'else_if'?

    - by Scott
    So I dynamically create 3 UIButtons (for now), with this loop: NSMutableArray *sites = [[NSMutableArray alloc] init]; NSString *one = @"Constution Center"; NSString *two = @"Franklin Court"; NSString *three = @"Presidents House"; [sites addObject: one]; [one release]; [sites addObject: two]; [two release]; [sites addObject: three]; [three release]; NSString *element; int j = 0; for (element in sites) { UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; //setframe (where on screen) //separation is 15px past the width (45-30) button.frame = CGRectMake(a, b + (j*45), c, d); [button setTitle:element forState:UIControlStateNormal]; button.backgroundColor = [SiteOneController myColor1]; [button addTarget:self action:@selector(showCCView:) forControlEvents:UIControlEventTouchUpInside]; [button setTag:j]; [self.view addSubview: button]; j++; } The @Selector method is here: - (void) showCCView:(id) sender { UIButton *button = (UIButton *)sender; int whichButton = button.tag; NSString* myNewString = [NSString stringWithFormat:@"%d", whichButton]; self.view = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]]; self.view.backgroundColor = [UIColor whiteColor]; UINavigationBar *cc = [SiteOneController myNavBar1:@"Constitution Center Content"]; UINavigationBar *fc = [SiteOneController myNavBar1:@"Franklin Court Content"]; UINavigationBar *ph = [SiteOneController myNavBar1:@"Presidents House Content"]; if (whichButton = 0) { NSLog(myNewString); [self.view addSubview:cc]; } else if (whichButton = 1) { NSLog(myNewString); [self.view addSubview:fc]; } else if (whichButton = 2) { NSLog(myNewString); [self.view addSubview:ph]; } } Now, it is printing the correct button tag to NSLog, as shown in the method, however EVERY SINGLE BUTTON is displaying a navigation bar with "Franklin Court" as the title, EVERY SINGLE ONE, even though when I click button 0, it says "Button 0 clicked" in the console, but still performs the else if (whichButton = 1) code. Am I missing something here?

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  • how to call the methos

    - by vicky
    for (i = 0; i < 4; i++) { DeCheBX = $('MyDiv').insert(new Element('input', { 'type': 'checkbox', 'id': "Img" + obj[i].Nam, 'value': obj[i].IM, 'onClick': 'shohide()' })); document.body.appendChild(DeCheBX); DeImg = $('MyDiv').insert(new Element('img', { 'id': "Imgx" + obj[i].Nam, 'src': obj[i].IM })); document.body.appendChild(DeImg); } function shohide() { for (i = 0; i < 4; i++) { ($('Img' + obj[i].Nam).checked == true) { alert("press" + obj[i].Nam); } } }

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  • Jquery animation in firefox

    - by Ravindra Soni
    i am using following code for animation using jquery. when i click on a list element, the corresponding div slides down and opacity goes to ‘1’. When i click other list element, the previos one goes up and fades, and the next one come down. var id_prev; var id_new; $("#tag ul li ").click(function(event){ var i = $(this).index()+1; var id_new="#person"+i; if(id_new != id_prev){ $(id_prev).animate({top:'300px',opacity:'0'},500); $(id_prev).delay(200).css({'z-index':'0'}); $(id_new).delay(200).css({'z-index':'300'}); $(id_new).delay(200).animate({top:'300px',opacity:'0'},500); $(id_new).delay(200).animate({top:'330px',opacity:'1'},500); id_prev = id_new; } });

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  • Hibernate Validator - Using properties in the constraints xml

    - by Avi Y
    Hi, I have just started using hibernate validator. I am creating the constraints in an XML file(not annotations). The only problem I am having is that I would like to use properties inside the constraints. For example: <bean class="MyBean" > <constraint annotation="javax.validation.constraints.Min"> <element name="value">{myProperty}</element> </constraint> </bean> and I would like to define these properties in a separate file. Do you think that's possible? Any help would be appreciated.

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  • c++ casting base class to derived class mess

    - by alan2here
    If I were to create a base class called base and derived classes called derived_1, derived_2 etc... I use a collection of instances of the base class, then when I retrieved an element and tried to use it I would find that C++ thinks it's type is that of the base class, probably because I retrieved it from a std::vector of base. Which is a problem when I want to use features that only exist for the specific derived class who's type I knew this object was when I put it into the vector. So I cast the element into the type it is supposed to be and found this wouldn't work. (derived_3)obj_to_be_fixed; And remembered that it's a pointer thing. After some tweaking this now worked. *((derived_3*)&obj_to_be_fixed); Is this right or is there for example an abc_cast() function that does it with less mess?

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  • Declaring Intent Filter in android

    - by Rahul Varma
    Hi, I have problem in declaring the intents on my app. I have a form with text fields and spinner. I have added a button which onClick must display Datepicker. I have declared the DatePicker as a new class and added to intent onCLick. date.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { Intent i=new Intent(SendMail.this,DatePicker.class); startActivity(i); } }); In manifest i have declared <activity android:name=".DatePicker"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> Now the problem is when i click the button the whole form is getting reset and all the spinner values are getting vanished. This must be because of declaring the intent wrongly. So, can anyone specify how to declare my intent so that the DatePicker will be called on the main form iteself

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  • Merging elements inside a xml.etree.ElementTree

    - by theAlse
    I have a huge test data like the one provided below (and yes I have no control over this data). Each line is actually 6 parts and I need to generate an XML based on this data. Nav;Basic;Dest;Smoke;No;Yes; Nav;Dest;Recent;Regg;No;Yes; Nav;Dest;Favourites;Regg;No;Yes; ... Nav;Dest using on board;By POI;Smoke;No;Yes; Nav;Dest using on board;Other;Regg;No;Yes; The first 3 elements on each line denotes "test suites"-XML element and the last 3 element should create a "test case"-XML element. I have successfully converted it into a XML using the following code: # testsuite (root) testsuite = ET.Element('testsuite') testsuite.set("name", "Tests") def _create_testcase_tag(elem): global testsuite level1, level2, level3, elem4, elem5, elem6 = elem # -- testsuite (level1) testsuite_level1 = ET.SubElement(testsuite, "testsuite") testsuite_level1.set("name", level1) # -- testsuite (level2) testsuite_level2 = ET.SubElement(testsuite_level1, "testsuite") testsuite_level2.set("name", level2) # -- testsuite (level3) testsuite_level2 = ET.SubElement(testsuite_level2, "testsuite") testsuite_level2.set("name", level3) # -- testcase testcase = ET.SubElement(testsuite_level2, "testcase") testcase.set("name", "TBD") summary = ET.SubElement(testcase, "summary") summary.text = "Test Type= %s, Automated= %s, Available=%s" %(elem4, elem5, elem6) with open(input_file) as in_file: for line_number, a_line in enumerate(in_file): try: parameters = a_line.split(';') if len(parameters) >= 6: level1 = parameters[0].strip() level2 = parameters[1].strip() level3 = parameters[2].strip() elem4 = parameters[3].strip() elem5 = parameters[4].strip() elem6 = parameters[5].strip() lines_as_list.append((level1, level2, level3, elem4, elem5, elem6)) except ValueError: pass lines_as_list.sort() for elem in lines_as_list: _create_testcase_tag(elem) output_xml = ET.ElementTree(testsuite) ET.ElementTree.write(output_xml, output_file, xml_declaration=True, encoding="UTF-8") The above code generates an XML like this: <testsuite name="Tests"> <testsuite name="Nav"> <testsuite name="Basic navigation"> <testsuite name="Set destination"> <testcase name="TBD"> <summary>Test Type= Smoke test Automated= No, Available=Yes</summary> </testcase> </testsuite> </testsuite> </testsuite> <testsuite name="Nav"> <testsuite name="Set destination"> <testsuite name="Recent"> <testcase name="TBD"> <summary> Test Type= Reggression test Automated= No, Available=Yes </summary> </testcase> </testsuite> </testsuite> </testsuite> </testsuite> ... This is all correct, but as you can see I have created a whole tree for each line and that is not what I need. I need to combine e.g. all testsuite with the same name into one testsuite and also perform that recursively. So the XML looks like this instead: <testsuite name="Tests"> <testsuite name="Nav"> <testsuite name="Basic navigation"> <testsuite name="Set destination"> <testcase name="TBD"> <summary>Test Type= Smoke test Automated= No, Available=Yes</summary> </testcase> </testsuite> <testsuite name="Recent"> <testcase name="TBD"> <summary> Test Type= Reggression test Automated= No, Available=Yes </summary> </testcase> </testsuite> </testsuite> </testsuite> </testsuite> I hope you can understand what I mean, but level1, level2 and level3 should be unique with testcases inside. How should I do this? Please do not suggest the use of any external libraries! I can not install new libraries in customer site. xml.etree.ElementTree is all I have. Thanks

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  • Disappearing IE6 elements.

    - by Stefan Kendall
    I don't know what could be causing this issue, but for some reason, elements on my page (list navigation items, specifically), are disappearing in IE6. That is, from IE developer toolbar, I can see that the elements are there, and the DOM/css is correct, but the elements just aren't visible. The odd thing is that if you set or toggle ANY css element on the list items with the IE6 toolbar, the elements appear. I also have a hover() jQuery action set on the list navigation items, and the event fires as if the elements were visible and working correctly. What could possibly be going wrong here? I initially thought z-index could be an issue, but changing ANY attribute or css value (not necessarily z-index), causes the element to render. I should note, however, that doing this programmatically does not cause the elements to display properly, even if triggered seconds after the page load.

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  • Problem with list activity

    - by vikram deshpande
    I have implmented pagination and it display 5 records per page. Now suppose I am on page 3 and click 3'rd element then 3'rd element of page-1 is selected. I am not able to figure out problem as I always create new list object while setting data. I used below code temp = new ArrayList(); this.someListAdapter = new SomeListAdapter(this, R.layout.row_facet,temp); setListAdapter(this.someListAdapter ); Below is signature of SomeListAdapter class. public class SomeListAdapter extends ArrayAdapter<VoNeighborhood> { } Please help....

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  • How to get a reference to node in DOM tree in Google Chrome debugger console

    - by .yahoo.co.jpaqwsykcj3aulh3h1k0cy6nzs3isj
    In the Google Chrome debugger, I often want to get a reference to a node in the DOM tree. I can click the "magnifying glass" button and then click the desired element in the browser window to select the corresponding node in the DOM tree displayed in the debugger. But how can I get a reference to that node in the console? If the element has an id, document.getElementById works, but if there is no id, is there a better alternative to XPath or manual traversal of the DOM tree using children? In case XPath is the best way, is there a better way than doing something like this: var evaluator = new XPathEvaluator(); var result = evaluator.evaluate("//div", document.documentElement, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null); which is a pain to type out each time.

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  • IE page redirect hanging

    - by 08Hawkeye
    My app does a POST to my local server to create a new DOM element, comes back and should redirect to the same page with the new element. The problem is when it gets back from the server, the app hangs for almost 2 minutes before doing the redirect. I've isolated the issue to the fact that IE seems to have trouble with my tree structure of 100+ DOM elements, and I can see in HTTPWatch that it sits in a "Blocked" call for the 2 minutes before doing the redirect. Our temporary workaround is to set the inner-html of the tree structure to an empty string before submitting, thus eliminating the heavy DOM lifting, but we shouldn't need to do this (firefox has no trouble with the redirect). Question 1: Is there a better fix for this issue? Question 2: Why does ANY page care about the content before a redirect if it's going to be refreshed anyway? Thanks yall //sw

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  • Why is there a limit of max 20 parameters to a clojure function

    - by GuyC
    Hi, there seems to be a limit to the number of parameters a clojure function can take. When defining a function with more than 20 parameters I receive the following: Obviously this can be avoided, but I was hitting this limit porting the execution model of an existing DSL to clojure, and I have constructs in my DSL like the following, which by macro expansion can be mapped to functions quite easily except for this limit: (defAlias nn1 ((element ?e1) (element ?e2)) number "@doc features of the elements are calculated for entry into the first neural network, the result is the score computed by the latter" (nn1-recall (nn1-feature00 ?e1 ?e2) (nn1-feature01 ?e1 ?e2) ... (nn1-feature89 ?e1 ?e2))) which is a DSL statement to call a neural network with 90 input nodes. Can work around it of course, but was wondering where the limit comes from. Thanks.

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  • PHP DOMNode entities and nodeValue

    - by Obsidian
    When getting the nodeValue of a DOMNode object that has entities in the nodeValue (i.e. a & gt;) then it converts the entity into it's printable character (i.e. ) Does anyone know of a way to get it to keep it as an entity, it really messes up string comparisons when it converts to something unexpected. The following code reproduces the problem you will notice the length of the dump is 3 when it should be 6. <?php $xml='<?xml version="1.0"?> <root> <element>&gt;</element> </root>'; $a=new DOMDocument(); $a->loadXML($xml); var_dump($a->childNodes->item(0)->nodeValue);

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  • SWFUpload Authentication

    - by durilai
    I am using SWFUpload to do file uploading in a ASP.NET MVC 1.0 website. It is working fine, but I am not able to authenticate the upload method. The HttpContext.User.Identity.Name returns an empty string. I am assuming this is because the Flash movie is making the post. I am also using the wrapper provided here: http://blog.codeville.net/2008/11/24/jquery-ajax-uploader-plugin-with-progress-bar/. The controller action below gets fired, but as mentiond above the user object is not passed. Any help is appreciated! View HTML <form enctype="multipart/form-data" method="post" action="/Media/Upload/Photo"> <input type="file" id="userPhoto_Photo" name="userPhoto_Photo" /> </form> Javascript $(function() { $("#userPhoto").makeAsyncUploader({ upload_url: '/Media/Upload', flash_url: '<%= Url.Content("~/Content/Flash/swfUpload-2.2.0.1.swf") %>', file_size_limit: '1 MB', file_types: '*.jpg; *.png; *.gif', button_action: SWFUpload.BUTTON_ACTION.SELECT_FILE, button_width: 210, button_height: 35, button_image_url: '<%= Url.Content("~/Content/Images/UploadPhoto.png") %>', button_text: '', button_cursor: SWFUpload.CURSOR.HAND, button_window_mode: SWFUpload.WINDOW_MODE.TRANSPARENT }); }); Controller Action [AcceptVerbs(HttpVerbs.Post)] public ActionResult Upload() { if (Request.Files.Count == 1) { //Upload work } return RedirectToAction("Index", "Profile"); }

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  • MAD method compression function

    - by Jacques
    I ran across the question below in an old exam. My answers just feels a bit short and inadequate. Any extra ideas I can look into or reasons I have overlooked would be great. Thanx Consider the MAD method compression function, mapping an object with hash code i to element [(3i + 7)mod9027]mod6000 of the 6000-element bucket array. Explain why this is a poor choice of compression function, and how it could be improved. I basically just say that the function could be improved by changing the value for p (or 9027) to an prime number and choosing an other constant for a (or 3) could also help.

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  • jquery plugin with multiple functions

    - by tcurdt
    According to the developer documentation jquery plugins are supposed to have only one namespace for all functions they make available. Which is straight forward as long as you only expose a single function per context (static/element). (function($){ var state_a = 0, $.myplugin = function(in_options) { // static return this; } $.fn.myplugin = function(in_options) { // element return this; } })(jQuery); This makes calls like this possible: $("elem").myplugin(options); jQuery.myplugin(options); What's the best approach if you have more than one function and need to share state? I would like to call into my plugin like this: $("elem").myplugin.start(options); $("elem").myplugin.stop(); jQuery.myplugin.start(options); jQuery.myplugin.stop();

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  • How does browser know when to prompt user to save password?

    - by Eric
    This is related to the question I asked here: http://stackoverflow.com/questions/2382329/how-can-i-get-browser-to-prompt-to-save-password This is the problem: I CAN'T get my browser to prompt me to save the password for the site I'm developing. (I'm talking about the bar that appears sometimes when you submit a form on Firefox, that says "Remember the password for yoursite.com? Yes / Not now / Never") This is super frustrating because this feature of Firefox (and most other modern browsers, which I hope work in a similar fashion) seems to be a mystery. It's like a magic trick the browser does, where it looks at your code, or what you submit, or something, and if it "looks" like a login form with a username (or email address) field and a password field, it offers to save. Except in this case, where it's not offering my users that option after they use my login form, and it's making me nuts. :-) (I checked my Firefox settings-- I have NOT told the browser "never" for this site. It should be prompting.) My question: exactly what the heuristics are that Firefox (or any other modern browser) uses to know when it should prompt the user to save? This shouldn't be too difficult to answer, since it's right there in the Mozilla source (I don't know where to look or else I'd try to dig it out myself). You'd think there would be a blog post or some other similar developer note from the Mozilla developers about this but I can't find that either. (* Note that if your answer to me has anything to do with cookies, encryption or anything else that is about how I'm storing the user's passwords in the database, you've probably misread my question. :-)

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  • jquery ready function: script not detecting a function

    - by deostroll
    There is a web page with place holder (a normal div). Via ajax calls I am loading a <form> and a <script> into the place holder. The script contains necessary javascript to initialize the form (i.e. for e.g. disable the controls so as to make form read-only, etc). Here is a piece of code I have; it works, but the commented part doesn't work. Because the script engine cannot find the object tristate_DisableControl which is a function in one of those scripts I call via ajax. $(document).ready(function() { // $('#site_preferences_content div').each(function() { // if (typeof (window.tristate_DisableControl) == 'undefined') { // if (typeof (window.console) != 'undefnied') // console.log((new Date()).toTimeString() + ' not logable'); // pausecomp(1000); // } // else // tristate_DisableControl(this); // }); //end $('#site_prefrences_content div').each() setTimeout(function() { $('#site_preferences_content div').each(function() { tristate_DisableControl(this); }) }, 1000); }); I thought by the time $(document).ready() executes the DOM will be properly loaded...

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  • breakdown xpath

    - by lovetoknow
    I am looking at the website. Trying to transfer selenium html to junit but could not get it to work because it keeps saying Error: Element not found. Maybe syntax error because I was able to break it down to the shortest path in firebug but still could not get to compile..What do you do in this case ? Enrollment I use firebug Xpath to get the value of the above link /html/body/div[@id='contentDisplayPane']/div[@id='mainDiv']/div[@id='mainDivContent']/div[@id='simpleBox']/table/tbody/tr[2]/td[@id='fb_PageContent']/table/tbody/tr/td/table/tbody/tr/td[4]/a Using firebug xpath, I was able to break it down to this and able to access Enrollment link..However when I put this in the junit test case selenium.click(("//div[@id='simpleBox']/table/tbody/tr[2]/td[@id='fb_PageContent']/table/tbody/tr/td/table/tbody/tr/td[4]/a"); I get ERROR: Element //div[@id='simpleBox']/table/tbody/tr[2]/td[@id='fb_PageContent']/table/tbody/tr/td/table/tbody/tr/td[4]/a") not found Any help or tip is appreciated

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  • Get the XPath to an XElement?

    - by Chris
    I've got an XElement deep within a document. Given the XElement (and XDocument?), is there an extension method to get its full (i.e. absolute, e.g. /root/item/element/child) XPath? E.g. myXElement.GetXPath()? EDIT: Okay, looks like I overlooked something very important. Whoops! The index of the element needs to be taken into account. See my last answer for the proposed corrected solution.

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  • Access Elements inside a DataTemplate... How to for more than 1 DataTemplate?

    - by GaaTY
    I've got 2 DataTemplates defined for a Listbox Control. 1 Template is for the UnSelected State and the other one is for the Selected State(showing more detail than the UnSelected State). I followed the example here: http://blogs.msdn.com/b/wpfsdk/archive/2007/04/16/how-do-i-programmatically-interact-with-template-generated-elements-part-ii.aspx about how to access the Elements inside the DataTemplates from Code behind. I get it right, but it only finds and returns an element of the UnSelected DataTemplate. But when i search for an element in the Selected DataTemplate i get a NullReferenceException. What could i be doing wrong?

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