Home >Backend Development >PHP Tutorial >repeater aspnet Repeater control description and detailed introduction and usage

repeater aspnet Repeater control description and detailed introduction and usage

WBOY
WBOYOriginal
2016-07-29 08:42:291638browse

The Repeater control does not have built-in rendering capabilities, which means that the user must provide a layout for the Repeater control by creating a template. When the page runs, the Repeater control steps through the records in the data source, rendering an item for each record.
It is very simple and not powerful enough to use, but as the old saying goes, you can't kill a chicken with a bull's knife. If you don't use a bull's knife, what's the point? Can't we kill the chicken? And we often face this in daily applications. As for the choice, if we display complex data, we can use gridview, and generally use DataList for complex data. What about simple data presentation? We use Repeater because it is simple, compact, and most importantly, flexible.
 We said above that it does not have built-in presentation function, so we have to use some templates to achieve its data presentation. By the way, when it comes to presentation, I have to say more. It does not give you the function of adding static items. In other words, it only deals with the database, and ordinary people will not talk to you.
 The following table describes the templates supported by the Repeater control.
 Template Properties Description
 ItemTemplate
 Contains HTML elements and controls that are rendered once for each data item in the data source.
 AlternatingItemTemplate
 Contains HTML elements and controls that are rendered once for each data item in the data source. In general, you can use this template to create a different appearance for alternating items, such as specifying a different background color than the one specified in the ItemTemplate.
 HeaderTemplate and FooterTemplate
 Contain text and controls that are rendered at the beginning and end of the list respectively.
 SeparatorTemplate
 Contains the elements rendered between each item. A typical example might be a straight line (using the hr element).
 We define the format in these templates, and when the web page is presented, it will be more beautiful. Of course, if you make it ugly, it will not be beautiful.
 In addition, the Item template must be defined
 If the Repeater control If no data source is specified, it will not be displayed. If there is no data in the specified data source, the header and footer templates will continue to be displayed.
 The main points we want to talk about about this control are the following
 1. Understand several templates of this control
 2. Simple and practical Repeater control to realize data reading and presentation.
  3. Realize the nested use of this control
  4. Realize data paging (I previously posted on my blog that the control is used for paging outside the repeater, but it always feels unsightly. This time we put the paging in the footer template to Make the control more beautiful)
 5. Let our data items become links. Only in this way will it be complete.

The above introduces the description, detailed introduction and usage of repeater aspnet Repeater control, including the content of repeater. I hope it will be helpful to friends who are interested in PHP tutorials.

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn