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INotifyPropertyChanged is an interface used by binding sources (i.e. the DataContext) to let the user interface or other components know that a property has been changed. WPF automatically updates the UI for you when it sees the PropertyChanged event raised. It is desirable to have this interface im...

You can bind to a property on a named element, but the named element must be in scope. <StackPanel> <CheckBox x:Name="MyCheckBox" IsChecked="True" /> <TextBlock Text="{Binding IsChecked, ElementName=MyCheckBox}" /> </StackPanel>

You can bind to a property of an ancestor in the visual tree by using a RelativeSource binding. The nearest control higher in the visual tree which has the same type or is derived from the type you specify will be used as the binding's source: <Grid Background="Blue"> <Grid ...

The Django template system has built-in tags and filters, which are functions inside template to render content in a specific way. Multiple filters can be specified with pipes and filters can have arguments, just as in variable syntax. {{ "MAINROAD 3222"|lower }} # mainroad 3222 {{ 10...

If you need to add an attribute through razor that has a - (hyphen) in the name you cannot simply do @Html.DropDownListFor(m => m.Id, Model.Values, new { @data-placeholder = "whatever" }) it will not compile. data-* attributes are valid and common in html5 for adding extra values t...

You can diff UTF-16 encoded files (localization strings file os iOS and macOS are examples) by specifying how git should diff these files. Add the following to your ~/.gitconfig file. [diff "utf16"] textconv = "iconv -f utf-16 -t utf-8" iconv is a program to convert differe...

With TypeScript 1.8 it becomes possible for a type parameter constraint to reference type parameters from the same type parameter list. Previously this was an error. function assign<T extends U, U>(target: T, source: U): T { for (let id in source) { target[id] = source[id]; ...

composer update composer update will update our dependencies as they are specified in composer.json. For example, if our project uses this configuration: "require": { "laravelcollective/html": "2.0.*" } Supposing we have actually installed the 2.0.1 version ...

Below are the operators that can be overloaded in classes, along with the method definitions that are required, and an example of the operator in use within an expression. N.B. The use of other as a variable name is not mandatory, but is considered the norm. OperatorMethodExpression+ Addition__add...

name:"john doe"~1 Searches for multiple terms within a specific term distance (~1), i.e will find text containing john anonymous doe but not john second name doe

name:"john doe" Searches for multiple terms in specific order.

By default you will get de codes and id's for optionsets and lookups. If you want to get the label as well, you need to add an extra header to the call. $.ajax({ url: Xrm.Page.context.getClientUrl() + '/api/data/v8.0/contacts', headers: { 'Accept': 'Application/json', ...

If you fetch a single record and when that record has a lookup, you can also fetch values of the lookup value using the expand option. This reduces the number of calls you need to make to the API. The sample gets all accounts and the last name of the primary contact: $.ajax({ url: Xrm.Page.co...

You can use the filter property to retrieve a subset of values from CRM. In this example only the accounts where the company name equals CompanyName are returned. $.ajax({ url: Xrm.Page.context.getClientUrl() + '/api/data/v8.0/accounts?$filter=name eq CompanyName', headers: { 'A...

Class implementation: CLASS lcl_abap_class DEFINITION. PRIVATE SECTION. METHODS method1 IMPORTING iv_string TYPE string CHANGING cv_string TYPE string EXPORTING ev_string TYPE string. ENDCLASS. CLASS lcl_abap_class IMPLEMENTATION. METHOD m...

Class implementation: CLASS lcl_abap_class DEFINITION. PRIVATE SECTION. METHODS method1 RETURNING VALUE(rv_string) TYPE string. ENDCLASS. CLASS lcl_abap_class IMPLEMENTATION. METHOD method1. rv_string = 'returned value'. ENDMETHOD. ENDCLASS. Method call example: ...

CMake knows several build types, which usually influence default compiler and linker parameters (such as debugging information being created) or alternative code paths. By default, CMake is able to handle the following build types: Debug: Usually a classic debug build including debugging informa...

my_vector = [0, 2, 1, 3, 9]; for i = 1:numel(my_vector) my_vector(i) = my_vector(i) + 1; end Most simple things done with for loops can be done faster and easier by vectorized operations. For example, the above loop can be replaced by my_vector = my_vector + 1.

Type type = obj.GetType(); //To restrict return properties. If all properties are required don't provide flag. BindingFlags flags = BindingFlags.Public | BindingFlags.Instance; PropertyInfo[] properties = type.GetProperties(flags); foreach (PropertyInfo property in properties) { Console...

You can add an interpreter directive (shebang) to your script. Create a file called hello_world.rb which contains: #!/usr/bin/env ruby puts 'Hello World!' Give the script executable permissions. Here's how to do that in Unix: $ chmod u+x hello_world.rb Now you do not need to call the Ru...