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  • WPF - Get combobox checked property from ListBox

    - by Chris Klepeis
    I have a listbox, which is defined like so: <ListBox ItemsSource="{Binding Source={x:Static local:ResourceCollection.resourceList}}" Height="143" HorizontalAlignment="Left" Margin="6,6,0,0" Name="assignmentLB" VerticalAlignment="Top" Width="287" FontSize="12" FontWeight="Normal" IsEnabled="True" Grid.Column="0"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel Orientation="Horizontal"> <CheckBox /> <TextBlock Text="{Binding Content}" /> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox> How can I loop through this listbox and retrieve the TextBlock.Text value for only items whose Checkbox has been checked?

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  • How to create relationship between two tables with revisions using Entity Framework

    - by Chris Ridenour
    So I am in the process of redesigning a small database (and potentially a much larger one) but want to show the value of using revisions / history of the business objects. I am switching the data from Access to MSSQL 2008. I am having a lot of internal debate on what version of "revision history" to use in the design itself - and thought I had decided to add a "RevisionId" to all tables. With this design - adding a RevisionId to all tables we would like tracked - what would be the best way to create Navigational Properties and Relationships between two tables such as | Vendor | VendorContact | where a Vendor can have multiple contacts. The Contacts themselves will be under revision. Will it require custom extensions or am I over thinking this? Thanks in advance.

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  • create a dict of lists from a string

    - by Chris Card
    I want to convert a string such as 'a=b,a=c,a=d,b=e' into a dict of lists {'a': ['b', 'c', 'd'], 'b': ['e']} in Python 2.6. My current solution is this: def merge(d1, d2): for k, v in d2.items(): if k in d1: if type(d1[k]) != type(list()): d1[k] = list(d1[k]) d1[k].append(v) else: d1[k] = list(v) return d1 record = 'a=b,a=c,a=d,b=e' print reduce(merge, map(dict,[[x.split('=')] for x in record.split(',')])) which I'm sure is unnecessarily complicated. Any better solutions?

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  • UILabels NOT Updating

    - by Chris Calleja Urry
    i have a UITableView that is being populated by core data , now , when i click on a cell , it pushes me to another view where i can edit the data that is in that particular index , when i return , the system either crashes or else doesnt load the changes onto the labels , any ideas ? code below -(void)viewWillAppear:(BOOL)animated { searchCriteria = [[NSMutableString alloc] initWithString:@"clientName"]; NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"clientName" ascending:YES]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [fetchRequest setSortDescriptors:sortDescriptors]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Client" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; fetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContext sectionNameKeyPath:nil cacheName:@"Root"]; [self.clientTableView reloadData]; [super viewWillAppear:animated]; } and -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; } Client * client = [self.fetchedResultsController objectAtIndexPath:indexPath]; clientNameLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 0.0, 250.00, 30.0)]; clientNameLabel.tag = 1; clientNameLabel.backgroundColor = [UIColor clearColor]; clientNameLabel.textColor = [UIColor whiteColor]; clientNameLabel.font = [UIFont boldSystemFontOfSize:13]; clientNameLabel.text = client.clientName; [cell.contentView addSubview:clientNameLabel]; clientAccountNumberLabel = [[UILabel alloc] initWithFrame:CGRectMake(15.0, 35.0, 250.00, 30.00)]; clientAccountNumberLabel.tag = 2; clientAccountNumberLabel.textColor = [UIColor whiteColor]; clientAccountNumberLabel.backgroundColor = [UIColor clearColor]; clientAccountNumberLabel.font = [UIFont boldSystemFontOfSize:13]; clientAccountNumberLabel.text = client.clientAccountNumber; [cell.contentView addSubview:clientAccountNumberLabel]; clientTelephoneNumberLabel = [[UILabel alloc] initWithFrame:CGRectMake(300.0, 0.0, 250, 30.00)]; clientTelephoneNumberLabel.tag = 3; clientTelephoneNumberLabel.textColor = [UIColor whiteColor]; clientTelephoneNumberLabel.backgroundColor = [UIColor clearColor]; clientTelephoneNumberLabel.font = [UIFont boldSystemFontOfSize:13]; [cell.contentView addSubview:clientTelephoneNumberLabel]; addressLine1Label = [[UILabel alloc] initWithFrame:CGRectMake(315.0, 35.0, 250, 30.00)]; addressLine1Label.tag = 4; addressLine1Label.textColor = [UIColor whiteColor]; addressLine1Label.backgroundColor = [UIColor clearColor]; addressLine1Label.font = [UIFont boldSystemFontOfSize:13]; addressLine1Label.text = client.addressLine1; [cell.contentView addSubview:addressLine1Label]; addressLine2Label = [[UILabel alloc] initWithFrame:CGRectMake(315.0, 35.0, 250, 30.00)]; addressLine2Label.tag = 5; addressLine2Label.textColor = [UIColor whiteColor]; addressLine2Label.backgroundColor = [UIColor clearColor]; addressLine2Label.text = client.addressLine2; addressLine2Label.font = [UIFont boldSystemFontOfSize:13]; [cell.contentView addSubview:addressLine2Label]; addressLine3Label = [[UILabel alloc] initWithFrame:CGRectMake(315.0, 35.0, 250, 30.00)]; addressLine3Label.tag = 6; addressLine3Label.textColor = [UIColor whiteColor]; addressLine3Label.backgroundColor = [UIColor clearColor]; addressLine3Label.font = [UIFont boldSystemFontOfSize:13]; addressLine3Label.text = client.addressLine3; [cell.contentView addSubview:addressLine3Label]; addressLine4Label = [[UILabel alloc] initWithFrame:CGRectMake(315.0, 35.0, 250, 30.00)]; addressLine4Label.tag = 7; addressLine4Label.textColor = [UIColor whiteColor]; addressLine4Label.backgroundColor = [UIColor clearColor]; addressLine4Label.font = [UIFont boldSystemFontOfSize:13]; addressLine4Label.text = client.addressLine4; [cell.contentView addSubview:addressLine4Label]; return cell; } The Crash Logs are as follows : 2012-06-23 17:08:05.541 iSalesForce[11773:15803] no object at index 1 in section at index 0 And some other code you might find useful are : - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [fetchedObjects count]; } - (float)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { return 70.0; }

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  • JSON editor/formatter?

    - by Chris
    I've got some JSON data, but it's all on one line. Does anyone know of a web or Windows editor that will format (e.g. indent and insert new lines) this data for me, so I can read it better? Preferably one that uses a GUI to display the JSON—instead of a command-line tool that outputs a reformatted document, for example.

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  • SSRS 2008 Need to lookup customer name with largest order

    - by Chris
    Hi, I'm creating an SSRS report which contains a table of orders, grouped by day. Now I can easily get the max order value for the day and put it in the group header by using the SSRS MAX() function. However, I also want to get the corresponding customer name who placed this order, and place this in the group header too. We can assume my result set simply contains date, name and order value. Is there any way to do this in SSRS 2008? Thanks

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  • Pointers, am I doing them correctly? Objective-c/cocoa

    - by Chris
    I have this in my @interface struct track currentTrack; struct track previousTrack; int anInt; Since these are not objects, I do not have to have them like int* anInt right? And if setting non-object values like ints, boolean, etc, I do not have to release the old value right (assuming non-GC environment)? The struct contains objects: typedef struct track { NSString* theId; NSString* title; } *track; Am I doing that correctly? Lastly, I access the struct like this: [currentTrack.title ...]; currentTrack.theId = @"asdf"; //LINE 1 I'm also manually managing the memory (from a setter) for the struct like this: [currentTrack.title autorelease]; currentTrack.title = [newTitle retain]; If I'm understanding the garbage collection correctly, I should be able to ditch that and just set it like LINE 1 (above)? Also with garbage collection, I don't need a dealloc method right? If I use garbage collection does this mean it only runs on OS 10.5+? And any other thing I should know before I switch to garbage collected code? Sorry there are so many questions. Very new to objective-c and desktop programming. Thanks

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  • Parsing an Open XML doc via styled blocks

    - by Chris B. Behrens
    I'm working with docx docs, and I need to parse a document into sections on the basis of headings styled with the "heading 1" style. So if I had a doc like this (markup is pseudocode): <doc> <title style>Doc Title</title style> <heading1>First Section</heading1> ... <heading2>Second Section</heading2> ... <heading3>Third Section</heading3> ... </doc> I'd want to break this into a doc with four sections, the first being the content that precedes the first section. I figure that this is probably pretty simple once you're familiar with Open XML, but I am not. TIA.

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  • Open a file with su/sudo inside Emacs

    - by Chris Conway
    Suppose I want to open a file in an existing Emacs session using su or sudo, without dropping down to a shell and doing sudoedit or sudo emacs. One way to do this is (require 'tramp) C-c C-f /sudo::/path/to/file but this requires an expensive round-trip through SSH. Is there a more direct way? [EDIT] @JBB is right. I want to be able to invoke su/sudo to save as well as open. It would be OK (but not ideal) to re-authorize when saving. What I'm looking for is variations of find-file and save-buffer that can be "piped" through su/sudo.

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  • Putting a dollar value on code quality

    - by Chris Nelson
    As noted in another thread, "In most businesses, code quality is defined in dollars." So my company has an opportunity to acquire a large-ish C code base. Obviously, if the code quality is good, the code base is worth more than if it's poor. That is, if we can readily read, understand, and update the code, it's worth more to us than if it's a spaghetti-coded mess. Without being able to see the code ahead of time, we'd like to set some objective measure as an acceptance criteria like "If the XXX measure is below the price will be discounted YY%." What criteria can we or should we measure and what tool can we use to measure it?

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  • Using IOperationBehavior to supply a WCF parameter

    - by Chris Kemp
    This is my first step into the world of stackoverflow, so apologies if I cock anything up. I'm trying to create a WCF Operation which has a parameter that is not exposed to the outside world, but is instead automatically passed into the function. So the world sees this: int Add(int a, int b) But it is implemented as: int Add(object context, int a, int b) Then, the context gets supplied by the system at run-time. The example I'm working with is completely artificial, but mimics something that I'm looking into in a real-world scenario. I'm able to get close, but not quite the whole way there. First off, I created a simple method and wrote an application to confirm it works. It does. It returns a + b and writes the context as a string to my debug. Yay. [OperationContract] int Add(object context, int a, int b); I then wrote the following code: public class SupplyContextAttribute : Attribute, IOperationBehavior { public void Validate(OperationDescription operationDescription) { if (!operationDescription.Messages.Any(m => m.Body.Parts.First().Name == "context")) throw new FaultException("Parameter 'context' is missing."); } public void ApplyDispatchBehavior(OperationDescription operationDescription, DispatchOperation dispatchOperation) { dispatchOperation.Invoker = new SupplyContextInvoker(dispatchOperation.Invoker); } public void ApplyClientBehavior(OperationDescription operationDescription, ClientOperation clientOperation) { } public void AddBindingParameters(OperationDescription operationDescription, BindingParameterCollection bindingParameters) { // Remove the 'context' parameter from the inbound message operationDescription.Messages[0].Body.Parts.RemoveAt(0); } } public class SupplyContextInvoker : IOperationInvoker { readonly IOperationInvoker _invoker; public SupplyContextInvoker(IOperationInvoker invoker) { _invoker = invoker; } public object[] AllocateInputs() { return _invoker.AllocateInputs().Skip(1).ToArray(); } private object[] IntroduceContext(object[] inputs) { return new[] { "MyContext" }.Concat(inputs).ToArray(); } public object Invoke(object instance, object[] inputs, out object[] outputs) { return _invoker.Invoke(instance, IntroduceContext(inputs), out outputs); } public IAsyncResult InvokeBegin(object instance, object[] inputs, AsyncCallback callback, object state) { return _invoker.InvokeBegin(instance, IntroduceContext(inputs), callback, state); } public object InvokeEnd(object instance, out object[] outputs, IAsyncResult result) { return _invoker.InvokeEnd(instance, out outputs, result); } public bool IsSynchronous { get { return _invoker.IsSynchronous; } } } And my WCF operation now looks like this: [OperationContract, SupplyContext] int Amend(object context, int a, int b); My updated references no longer show the 'context' parameter, which is exactly what I want. The trouble is that whenver I run the code, it gets past the AllocateInputs and then throws an Index was outside the bounds of the Array. error somewhere in the WCF guts. I've tried other things, and I find that I can successfully change the type of the parameter and rename it and have my code work. But the moment I remove the parameter it falls over. Can anyone give me some idea of how to get this to work (or if it can be done at all).

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  • Handling Types Defined in Plug-ins That Are No Longer Available

    - by Chris
    I am developing a .NET framework application that allows users to maintain and save "projects". A project can consist of components whose types are defined in the assemblies of the framework itself and/or in third-party assemblies that will be made available to the framework via a yet-to-be-built plug-in architecture. When a project is saved, it is simply binary-serialised to file. Projects are portable, so multiple users can load the same project into their own instances of the framework (just as different users may open the same MSWord document in their own local copies of MSWord). What's more, the plug-ins available to one user's framework might not be available to that of another. I need some way of ensuring that when a user attempts to open (i.e. deserialise) a project that includes a type whose defining assembly cannot be found (either because of a framework version incompatibility or the absence of a plug-in), the project still opens but the offending type is somehow substituted or omitted. Trouble is, the research I've done to date does not even hint at a suitable approach. Any ideas would be much appreciated, thanks.

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  • Configuring Warden for use in RSpec controller specs

    - by Chris Peters
    I was able to use Devise's sign_in method to log in a user in my controller specs. But now that I'm removing Devise from my application, I'm not quite sure how to get similar functionality working with just Warden on its own. How should I go about setting up spec/spec_helper.rb and related spec/support/*.rb files to get Warden running within controller specs sufficiently? I've tried setting up a file at spec/support/warden.rb with these contents: RSpec.configure do |config| config.include Warden::Test::Helpers config.after do Warden.test_reset! end end Then I have before calls similar to this to authenticate a user factory: before { login_as FactoryGirl.create(:user) } But here is the error that I keep seeing: NameError: undefined method `user' for nil:NilClass This error traces back to my authenticate_user! method in the controller: def authenticate_user! redirect_to login_path, notice: "You need to sign in or sign up before continuing." if env['warden'].user.nil? end I'd appreciate any guidance that anyone could provide.

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  • infix operation to postfix using stacks

    - by Chris De La O
    We are writing a program that needs to convert an infix operation (4 5/3) to postfix (4 5 3 / ) using stacks. however my convert to postfix does not work as it doesnt not output the postFix array that is supposed to store the conversion from infix notation to postfix notation. here is the code for the convertToPostix fuction. //converts infix expression to postfix expression void ArithmeticExpression::convertToPostfix(char *const inFix, char *const postFix) { //create a stack2 object named cow Stack2<char> cow; cout<<postFix; char thing = '('; //push a left parenthesis onto the stack cow.push(thing); //append a right parenthesis to the end of inFix array strcat(inFix, ")"); int i = 0;//declare an int that will control posFix position //if the stack is not empty if (!cow.isEmpty()) { //loop to run until the last character in inFix array for (int x = 0; inFix[x]!= '\0'; x++ ) { //if the inFix element is a digit if (isdigit(inFix[x])) { postFix[i]=inFix[x];//it is assigned to the next element in postFix array i++;//move on to next element in postFix } //if the inFix element is a left parenthesis else if (inFix[x]=='(') { cow.push(inFix[x]);//push it unto the stack } //if the inFix element is an operator else if (isOperator(inFix[x])) { char oper2 = inFix[x];//char variable holds inFix operator if (isOperator(cow.stackTop()))//if the top node in the stack is an operator { while (isOperator(cow.stackTop()))//and while the top node in the stack is an operator { char oper1 = cow.stackTop();//char variable holds node operator if(precedence( oper1, oper2))//if the node operator has higher presedence than node operator { postFix[i] = cow.pop();//we pop such operator and insert it in postFix array's next element cow.push(inFix[x]);//and push inFix operator unto the stack i++;//move to the next element in posFix } } } //if the top node is not an operator //we push the current inFix operator unto the top of the stack else cow.push(inFix[x]); } //if the inFix element is a right parenthesis else if (inFix[x]==')') { //we pop everything in the stack and insert it in postFix //until we arrive at a left paranthesis while (cow.stackTop()!='(') { postFix[i] = cow.pop(); i++; } //we then pop and discard left parenthesis cow.pop(); } } postFix[i]='\0'; //print !!postFix array!! (not stack) print();//code for this is just cout<<postFix; }

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  • How can I get my setup.py to use a relative path to my files?

    - by Chris B.
    I'm trying to build a Python distribution with distutils. Unfortunately, my directory structure looks like this: /code /mypackage __init__.py file1.py file2.py /subpackage __init__.py /build setup.py Here's my setup.py file: from distutils.core import setup setup( name = 'MyPackage', description = 'This is my package', packages = ['mypackage', 'mypackage.subpackage'], package_dir = { 'mypackage' : '../mypackage' }, version = '1', url = 'http://www.mypackage.org/', author = 'Me', author_email = '[email protected]', ) When I run python setup.py sdist it correctly generates the manifest file, but doesn't include my source files in the distribution. Apparently, it creates a directory to contain the source files (i.e. mypackage1) then copies each of the source files to mypackage1/../mypackage which puts them outside of the distribution. How can I correct this, without forcing my directory structure to conform to what distutils expects?

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  • Speed of NSScanner vs NSXMLParser?

    - by Chris
    I have an iPhone App that reads in an XML file, then pulls out the necessary data by looping through an NSScanner. The XML is not particularly long. I am wondering if it would be worth the work to implement NSXMLParser in place of using NSScanner, if I will see any real improvement in speed?

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  • Jquery: Is there some way to make val() return an empty string instead of 'undefined' for an empty list?

    - by Chris
    With Jquery, is there some way to make val() return an empty string instead of 'undefined' when called against an empty list of elements? E.g., I have this code: var x = $('#my-textbox-id').not('.watermark').val(); The idea is that I want to get the value of my textbox, but I want an empty string if it is currently showing the watermark (i don't want the watermark value!). The selector works, but i don't want 'undefined' - I want an empty string ''.

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  • C# Resources - How to find actual language file in use?

    - by Chris Meek
    I have a number resx files as follows, Resources-es-ES.resx Resources-es.resx Resources.resx (english defaults) They are compiled into an assembly and I use them for localising my web pages by simply referring to Resources.Ok for example. My question is whether there is a way to find out the "rendered culture", e.g. if I come into the site with my CurrentUICulture set to "fr-fr" for example it will fall back to using the English resources and I'm wondering how to get that information to help me with some JavaScript localisation.

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  • Nested Execution Flow Control

    - by chris
    I've read tens of answers related to callbacks, promises and other ways to control flow, but I can't still wrap my head around this task, obviously due to my lack of competence. I have a nested problem: In test_1() (and the other functions) I would like to ensure that the rows are added to the table according to the order in which the elements are in the object; I would like to execute either test_2 or test_3 (or both after each other) only after test_1 has finished completely. Actually the right sequence will only be known at runtime (there will be a switch with the possible sequences, like 1,2,3 or 1,3,2 or 1,2,1,3 or 1,3,3,2, etc...) Code: $(function () { // create table tbl = document.createElement('table'); tbl.className = "mainTbl"; $("body").append(tbl); }); function test_1() { $.each(obj, function () { var img = new Image(); img.onload = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "loaded"; }; img.onerror = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "not loaded"; }; img.src = this.url; }); } function test_2() { $.each(obj, function () { var img = new Image(); img.onload = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "loaded"; }; img.onerror = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "not loaded"; }; img.src = this.url; }); } function test_3() { $.each(obj, function () { var img = new Image(); img.onload = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "loaded"; }; img.onerror = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "not loaded"; }; img.src = this.url; }); } I know that calling the functions in sequence doesn't work as they don't wait for each other... I think promises are they way to go but I can't find the right combination and the documentation is way too complex for my skills. What's the best way to structure the code so that it's executed in the right order?

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  • Where are SSIS Packages Saved?

    - by Chris
    I right clicked on a Database in the object explorer of SQL Server 2008 Management Studio. I went to Tasks Import Data, and imported some data from a flat text file, opting to save the package on the server. Now how the heck do I get to the package to edit or run it again? Where in SQL Server Management Studio do I go? I've expanded everything and I can't find it. It's driving me nuts.

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  • Can you open an SPSite object while being within a different site collection?

    - by Chris Stewart
    I'm working on creating a common navigation experience across two site collections in MOSS 2007. I've looked around for various solutions and haven't found anything that fits. Our navigation is dynamic and driven by a number of factors, including audience targeting. Most of what I've found relates to having static XML and that just won't work for our requirements. What I'm down to at the moment is just getting a navigation item from site collection A while in the context of site collection B. Are there reasons I shouldn't be able to just open a navigation item from site collection A and gets its audience? Certainly there could be permissions problems on my end, or code related issues, or things that are in my control. What I'm wondering is if there's something inherent to SharePoint that would not allow this. Something I don't have control over which would force me to travel a different path.

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  • How long is too long for a script to execute?

    - by Chris T
    What is the max time do you think is acceptable for a web script (PHP for example) to execute before it starts to become an annoyance for the user (on average)? I always thought that if the user has to wait more than 1 second for the page to load (this of course after images and css have been cached..this rule really only applies for subsequent requests) they would start to get annoyed.

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