How Do I: Build Data-driven WPF Application using the MVVM pattern

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FlexBox (combobox+json +Paging)

FlexBox Visit the FlexBox Home Page FlexBox is a jQuery plugin that is intended to be a very flexible replacement for html textboxes and dropdowns, optionally using ajax to retrieve and bind JSON data. It can be used as a: ComboBox, with optional per-result html templates Suggest box, like Google's search Data-driven type-ahead input box It supports: Auto-completion using local (JSON) or remote (JSON via ajax) data Skinning via css Flexible paging Configurable client-side caching Much more... (see Configuration Options in the documentation) Screenshotflex More demos and code examples

ASP .NET - XML Files

An XML File Here is an XML file named "countries.xml": <?xml version="1.0" encoding="ISO-8859-1"?> <countries> <country> <text>Norway</text> <value>N</value> </country> <country> <text>Sweden</text> <value>S</value> </country> <country> <text>France</text> <value>F</value> </country> <country> <text>Italy</text> <value>I</value> </country> </countries> Bind a DataSet to a List Control First, import the "System.Data" namespace. We need this namespace to work with DataSet objects. Include the following directive at the top of an .aspx page: <%@ Import Namespace="System.Data" %> Next, create a DataSet for the XML file and load the XML file into the DataSet when the page is first loaded: <script runat="server"> sub Page_Load if Not Page.IsPos...

SQL JOINS &UNION

SQL JOIN The JOIN keyword is used in an SQL statement to query data from two or more tables, based on a relationship between certain columns in these tables. Tables in a database are often related to each other with keys. A primary key is a column (or a combination of columns) with a unique value for each row. Each primary key value must be unique within the table. The purpose is to bind data together, across tables, without repeating all of the data in every table. Look at the "Persons" table: P_Id LastName FirstName Address City 1 Hansen Ola Timoteivn 10 Sandnes 2 Svendson Tove Borgvn 23 Sandnes 3 Pettersen Kari Storgt 20 Stavanger Note that the "P_Id" column is the primary key in the "Persons" table. This means that no two rows can have the same P_Id. The P_Id distinguishes two persons even if they have the same name. Next, we have the "Orders" table: O_Id OrderNo P_Id 1 77895 3 2 44678 3 3 22456 1 4 24562 1 5 34764 15 Note that the "O_...

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