Recent questions tagged data

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data binding - Implementing a simple Master-Detail scenario for WPF in MVVM

I have a WPF application using MVVM. I have some user controls that should show a Person FirstName, LastName ... MVVM(preferably)? any samples? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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data binding - ClassNotFoundException: Didn't find class "android.databinding.DataBinderMapper"

I am using android's data binding library for views in a library project i have added the following line in ... loader; no stack trace available See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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698 views

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data annotations - Custom Model Validator for Integer value in ASP.NET Core Web API

I have developed a custom validator Attribute class for checking Integer values in my model classes. But the problem ... class is not working. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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627 views

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data structures - How java HashMap does chaining? how to access all collision values?

I have read somewhere that HashMap uses chaining to resolve collisions. But if that is the case. how can i ... it removes the complete chain. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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861 views

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data binding - WPF ComboBox bind itemssource to different datacontext in MVVM

I have a user control that has its datacontext set to a view model called EmployeeList_VM. I then have a ... .idStatus. Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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515 views

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data structures - Adjustable, versioned graph database

I'm currently working on a project where I use natural language processing to extract emotions from text to ... feature to filter for. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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754 views

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data binding - WPF Databinding

Can anyone point me to a good resource (or throw me a clue) to show me how to do DataBinding to controls ( ... all that bright to start with... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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648 views

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data recovery - Recovering Git repository from objects only

I have a Windows box which has taken it into it's head to delete most of a Git repository (must have ... have the metadata to convince Git. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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536 views

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data binding - Databind ASP.NET List of ListItem to DropDownList issue

I've just come across this bizarre thing that I was expecting to work in a different (logical) way, but it ... Or am I doing something wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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696 views

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data binding - ASP.net Inline Expression Issue

I can't seem to figure out why this does not work below. I need to bind the text box to a value from an inline ... .Text = "test"; } </script> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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641 views

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data binding - Spring MVC 3.0: How do I bind to a persistent object

I'm working with Spring MVC and I'd like it to bind a a persistent object from the database, but I cannot figure ... for errors ...save, etc. } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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579 views

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data structures - implement linked list using array - advantages & disadvantages

I know how to implement linked list using array. For example we define a struct as follow: struct Node{ ... Any suggestion will be appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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899 views

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data binding - Android DataBinding where to get context?

I have TextView for showing time. I want to use Android's DataBinding plugin. For formatting time I am using ... use old school way? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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636 views

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data binding - knockout bind text label to dropdown value selected option text

Is there a simple way to bind the textbox of a div to change based on the text value of the selected option ... include jQuery to make it work. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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618 views

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data structures - Multiple Tuple to Two-Pair Tuple in Python?

What is the nicest way of splitting this: tuple = ('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h ... that the input always has an even number of values. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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651 views

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data binding - WPF DataBound treeview expand / collapse

I'm just trying to find a way to control the expand / collapse of the TreeView nodes through the object they're bound ... " /> </Grid> </Window> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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576 views

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data structures - in C++, can I derive a class from a struct

The question says it all really. Am I allowed derive a class from a struct, or should I create a class ... operator to move between the two? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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848 views

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data binding - How can I bind a List collection to TabControl headers in WPF?

I can get data into my TabControl but the headers have frames around them and I can't slick from tab to tab ... { get; set; } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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548 views

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data structures - csv to sparse matrix in python

I have a big csv file which lists connections between nodes in a graph. example: 0001,95784 0001,98743 0002,00082 ... on this would also help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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733 views

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data binding - Angular2 ngModel inside of ngFor

I am trying to bind an array of strings from my inputs, so in the html file I wrote this: <div *ngFor="let ... ] = []; Thanks for your help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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544 views

1 answer

data manipulation - Extract non null elements from a list in R

I have a list like this: x = list(a = 1:4, b = 3:10, c = NULL) x #$a #[1] 1 2 3 4 # #$b #[ ... that are not null. How can this be done? Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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505 views

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data binding - WPF Context menu doesn't bind to right databound item

I have a problem when binding a command in a context menu on a usercontrol that is on a tab page. The first time ... Name { get; set; } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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554 views

1 answer

data breakpoints in java/eclipse

when developing C++ with VS you have this amazing feature of data breakpoints, which trigger when the data at a ... soon as the value changes. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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537 views

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data structures - Deleting any node from a single linked list when only pointer to that node is given

This is a question posed to me in an interview. "A single linked list is there in the memory. You have to ... that references it, point to NULL See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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456 views

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data conversion - Matching records based on Person Name

Are there any tools or methods that can be used for matching by a person's name between two different data ... , Natureboy (match on nickname) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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705 views

1 answer

data structures - Does Java support structs?

Does Java have an analog of a C++ struct: struct Member { string FirstName; string LastName; int BirthYear; }; I need to use my own data type. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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597 views

1 answer

data structures - Is there a standard Java implementation of a Fibonacci heap?

I was looking at the different kind of heap data structures. The Fibonacci heap seems to have the better worst ... heap in java.util? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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569 views

1 answer

data binding - Passing current scope to an AngularJS Service

Is it correct to pass the "current" $scope to an AngularJS service? I'm in the situation where I've a ... make my controller listen to them? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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