彩票走势图

具有5种视图的混合数据显示
Presenter 是一种数据可视化组件，它采用了数据集中分发思想的数据浏览体验，且只需要通过单击的方式就可以将一个数据源转换到多种表现形式。DataPresenterManager是一个核心组件，它作为数据缓冲管理器并处理所有数据的接收并自动地分发数据到其它的presenter视图，例如Icon Presenter,List Presenter,和其他的Presenter。

自动的同步视图状态
该组件工作在具有混合表现功能的场景下，自动状态的同步可以无缝地保存用户进行各种数据交互的状态。其数据状态，如过滤的列，排序的列和列的顺序，将被妥善的保存，并用于用户导航到不同的视图。

高性能的VirtualScroll技术
Intersoft Presenter内置的视图都具有强大的Virtual Scrolling功能，它可以使每个视图在显示大数据集时性能不受影响。因此，最终用户能够享受到平滑且一致的滚动行为而不管对象的总数量大小和其渲染的复杂性。

使用DataPresenterManager超快速的数据载入和提取
针对极度超重的数据使用率，Presenter对数据presenter管理器的思想做了优化。所有的数据被提取并聚集在一种集中的数据源中，只有当被请求时才分发出去，这样使在Presenter快速有效的执行各种数据操作的同时，而不用增加额外的资源消耗。

客户端和服务器端操作
该组件作为一个企业级的数据可视化组件而被设计，Presenter提供根据不同的用途和场景灵活选择最佳数据的操作模式。选择客户端操作的用户可载入所有的数据到客户端，省去了客户端与服务器间的数据往返。当您需处理大量数据时，选择服务器端的操作，因为当通过presenter请求时，它载入较小的一块数据，因此它具有最好的性能。

多项选择
Presenter提供了多个项的选择功能，并且在所有的内置presenter中都一致地实现。您可以通过使用键盘的ctrl和shift键的组合按键，或使用鼠标和按键组合来选择多个项。由于自动的视图状态同步功能，所有选中的项在视图切换时都将被保存，使用户能够方便的使用选择功能。

列排序
在Presenter中可以重新安排列的顺序。只需简单地点击和拖拽一列，并在列与列之间删除拖拽掉的列。需要注意的是Presenter将会自动的调整它显示的视图并移动整个列到新的位置。列重新排列功能可以通过在操作框内简单地移动分组过的列来改变分组顺序。

操作框
Presenter使用户能够很方便地执行各种操作---如排序，分组或筛选—直接地在一个集中的，直观的操作框中进行。当一列处于不稳定状态时，点击列标题的下拉箭头以显示操作框，然后执行所需要的数据操作。

绑定到Intersoft 数据源
使用声明的数据绑定思想，Presenter使您能够立即绑定到您的ADO.NET数据服务，Wcf服务，和Xml文档，而不用编写任何C#代码。如果配置正确，Presenter将能够不费力地执行排序，分组，筛选以及CRUD操作。

Features:

Hybrid Data Presentation with built-in 5 Views
Presenter a data visualization component that introduces a data browsing experience with centralized data distribution concept, transforming a datasource into multiple presentations with a single click. DataPresenterManager is the central component that serves as data pool manager and handles all data fetching process and automatically distributes it to other presenter views, such as Icon Presenter, List Presenter, and others.

Automatic view state synchronization
Work in concert with hybrid presentation feature, automatic state synchronization seamlessly saves the latest data state as users perform various data interactions. The data state, such as filtered columns, sorted columns and columns order, will be properly maintained as user navigates to different views.

High performance VirtualScroll technology
All built-in views in Intersoft Presenter are powered with Virtual Scrolling, a technology that enables each view to display large dataset without performance hit. As a result, end user can enjoy smooth and consistent scrolling behavior regardless of the total number of objects and the rendering complexity.

Ultra fast data loading and fetching with DataPresenterManager
Presenter is optimized for extremely heavy data usage with its data presenter manager concept. All data is fetched and aggregated in one centralized data source and distributed when requested, enabling Presenter to perform data operations quickly and efficiently, without bloating up resources consumption.

Client-side and server-side operations
Designed as an enterprise-ready data visualization component, Presenter offers the flexibility to choose the best data operation mode according to the usage and scenarios. Choose client-side operation to load all data to client-side which eliminates client-server roundtrip. When you’re dealing with larger data, choose server-side operation for best performance as it loads smaller chunk of data when requested by the presenter.

Multiple items selection
Presenter provides multiple items selection feature which is implemented consistently in all built-in presenters. You can select multiple items by using keyboard keys including combination of ctrl and shift key, or by using mouse and keys combination. Thanks to the automatic view state synchronization feature, all selected items will be persisted during view switching, enables user to easily work on selection.

Column ordering
It’s possible to rearrange the column order in Presenter. Simply click and drag on a column and drop it in between columns. Notice that Presenter will adjust its view automatically and move the entire column to the new location. Column rearranging can be used to change the grouping order by simply move the grouped columns inside the action box.

Action box
Presenter enables users to conveniently perform various actions – such as sorting, grouping or filtering – directly in a centralized, intuitive action box. When a column is hovered, click on the drop down arrow next to the column caption to show the action box, and then perform the desired data operation.

Bind to Intersoft DataSource
With the declarative databinding concept, Presenter enables you to bind to your ADO.NET data services, Wcf service, and Xml document instantly, without writing a single line of C# codes. When properly configured, Presenter will be able to perform sorting, grouping, filtering as well as CRUD operations effortlessly.

Comprehensive editing features
Apart from its extra ordinary data viewing features, Presenter also offers full-featured data editing capabilities – enabling users to easily add, edit, and delete records. Presenter works in concert with declarative datasource components such as Intersoft WcfDataSource and pass on the required information to the attached data source control which processes the data transactions elegantly.

Built-in data validation engine
High-quality data is very essential for mission-critical web applications. Understanding the need to provide the most accurate input, Presenter includes highly customizable input validation engine. From simple “field must be filled in” to more advanced validation, Presenter offers the most comprehensive, flexible APIs for total control over validation process.

Data grouping
Grouping operation in Presenter can be done elegantly through the action box in each column. Simply click on the column’s right header to open the action box and select the group button. Group rearrangement is also possible by simply moving the grouped columns, while sorting can be done by clicking on the grouped column’s header inside the action box. You can also define the initial group state and customize the group interval to deliver more logical grouping options for users.

Data sorting
Simply click on each column header to perform sorting. Available in three sorting mode, ascending, descending, and none, Presenter enables users to perform multiple sorting in multiple direction at the same time. It’s also enhanced to support column sorting while the column is grouped at the same time.

Data filtering
Sharing the same user interface concept as grouping and sorting, data filtering action is also accessible through the action box. By default, all values of the selected column will be displayed. Just check or uncheck the checkbox to filter it. Custom filtering options are also offered to provide more elegant filtering mechanism for number data type. For example, you can create a range of numbers options such as 0-10, 21-30, 31-40, and so on.

Data paging
Presenter supports two modes of data paging, client-side and server-side paging. Client-side paging fetches all data on first load and thus suitable for smaller data size, while server-side paging connects to data source control and retrieves only a small chunk of data required by current view – makes it a perfect choice for real-world, fast-growing data.

Synchronized data drilling
Data drilling is a unique feature for presenting hierarchical data intuitively in a drill-down style user interface. The synchronized data drilling lets users drill down data while simultaneously maintaining the drill down state as users perform data operations and view switching. To get the child data, simply connect it to AstoriaDataSource or WcfDataSource, and then handle the data fetching implementation accordingly.

Hybrid data drilling
Only Presenter has hybrid data drilling, a breakthrough feature that lets you displays child data in different presenter views. For example, you can display the root data with an IconPresenter, and then use GridPresenter for the second child data and so on. Thanks to Presenter’s rock solid architecture – you can also create your own custom view and consume it to display child data.

Extensibility through iDataPresenter
Presenter is enhanced with highly extensible view capability, enabling developers to easily plug-in their custom-made view into Presenter Manager easily. By simply inheriting IDataPresenter interface and pass all required information, Data Presenter Manager will automatically provide all required information to your custom-view. It will be integrated into Presenter Manager and shares the same rich data interaction experience as in any built-in views. Data paging, sorting, and filtering will be enabled automatically.

Out of Browser (OOB) support
Presenter Manager now fully supports Out of Browser, a new feature in Silverlight 3 for building RIA applications that run on the desktop. It enables the application to be placed in a restricted store on the user’s machine; and then provide a link directly to it from the user's desktop or start menu for quick access.

Element-to-element binding
Harnessing the power of Silverlight 3, Presenter Manager now supports element-to-element binding architecture, which includes binding to DomainDataSource and other CLR objects. When bound to a datasource control such as DomainDataSource, it seamlessly retrieves the data in the background through the underlying datasource interface – making line-of-business RIA development easier than ever.

Comprehensive .NET RIA Services Support
All data presenter components have been further improved to take advantage of the enhanced data support in Silverlight 3, including easy data binding to .NET RIA Services, support for business objects, and more. The tight integration between Presenter Manager and .NET RIA Services offer seamless data operations, enabling you to easily load, sort, filter and page data without writing single line of codes. In addition, Presenter Manager also supports two-way data binding out-of-the-box, as well as batch update for optimized data transaction performance.