Skip to main content

70-562 ListView


List View is a versatile control that allows to work with a signle control rather than many smaller controls.
Provides rich sorting, deleting, editing, it is one of the most flexible grid control.
Design view can fill the ListView with fake data to give an overview.
In designer, the configure list view link might not show, (currently a bug), to fix configure the datasource but cancel then click configure datasource again and this time click finish and the Cofnoigure ListView link will show up in the smarttag.
You can choose templates, LayoutTemplate is crucial, ItemTemplate(a row is part of a table, in a list view they are called items since they don't have to correspond to a table row), AlternatingItemTemplate, ItemSeparatorTemplate, SelectedItem, EmptyItemTemplate, EditItemTemplate, InsertItemTemplate allows to customize what the user will be presented when creating an item, EmptyDataTemplate.
The itemPlaceHolder and the groupPlaceHolder are important elements as the will be replaced by each row of data in the format provided in the corresponding templates.
The tiled layout uses the GroupTemplate, this is done with the GroupItemCount of the ListView, this says 3 tiles wide.
To insert a new item at run time, the list view need to be configured to do so, the insert is placed in the end of the grid by default but can be configured in the list view element to be at the top of the grid.
The bind explicit method allows to perform 2 way, instead of Eval that is only one way.

Comments

Post a Comment

Popular posts from this blog

Rxjs Forkjoin vs Zip

These Rxjs combination operators are handy to make Rest calls in parallel and combine their results. Both take n observables and will return the results, with the difference that forkJoin will complete even if one of the nested observables errors of completes.
Post a Comment
Read more

React JS Patterns

React JS is always evolving, and evolving quickly. These evolutions can be very significant ones, for example, the addition of hooks. React has a lot of code patterns, often these patterns are motivated by the DRY and/or the open-close principle. These patterns sometimes come in to replace a previous one, yet the previous ones still stays in use, as a consequence, the list of patterns keep growing. The goal of the next few posts will be to list the patterns commonly used in React JS developpement. Some patterns are more specific to JSX and I will start with these, and maybe add patterns specific to Redux.
4 comments
Read more

ES6: object literal property shorthands

New shorthands for properties having the same name as the variable assigned to them, concise properties. Shorthand for functions, concise functions, although the underlying function is anonymous therefore cannot be reference, for example in the case of recursion. Also computed property names allows the use of variables as property names, inside object literals, using square brackets. And template literals were added, the backtick operator used designate an interpolatable string where variables are surrounded by curly braces and preceded by a dollar sign.
Post a Comment
Read more