本文内容

• 概述
• Ext.Net.RendererFormat 枚举
• 演示

 

概述

研究 Ext.Net Demo 时，经常能看到将 GridPanel 的某列添加 <Renderer Format="UsMoney" />"，改变列的呈现。本文演示 Ext.Net 提供的常用数据格式函数。

 

Ext.Net.RendererFormat 枚举

Ext.Net 的 RendererFormat 枚举类型将一些常用的数据格式转换函数，也就是改变数据呈现的格式，变成枚举类型，以便重用。如下表所示：

函数枚举	说明
None	无
Capitalize	Converts the first character only of a string to upper case
Date	Parse a value into a formatted date using the specified format pattern
DateRenderer	Returns a date rendering function that can be reused to apply a date format multiple times efficiently format : String (optional) Any valid date format string (defaults to 'm/d/Y')
DefaultValue	Checks a reference and converts it to the default value if it's empty
Ellipsis	Truncate a string and add an ellipsis ('...') to the end if it exceeds the specified length defaultValue : String The value to insert of it's undefined (defaults to "")
FileSize	Simple format for a file size (xxx bytes, xxx KB, xxx MB) length : Number The maximum length to allow before truncating word : Boolean True to try to find a common work break
HtmlDecode	Convert certain characters (&, <, >, and ') from their HTML character equivalents
HtmlEncode	Convert certain characters (&, <, >, and ') to their HTML character equivalents for literal display in web pages
Nl2br	Converts newline characters to the HTML tag <br/>
Number	Formats the number according to the format string. examples (123456.789): 0 - (123456) show only digits, no precision 0.00 - (123456.78) show only digits, 2 precision 0.0000 - (123456.7890) show only digits, 4 precision 0,000 - (123,456) show comma and digits, no precision 0,000.00 - (123,456.78) show comma and digits, 2 precision 0,0.00 - (123,456.78) shortcut method, show comma and digits, 2 precision To reverse the grouping (,) and decimal (.) for international numbers, add /i to the end. For example: 0.000,00/i
NumberRenderer	Returns a number rendering function that can be reused to apply a number format multiple times efficiently
Lowercase	Converts a string to all lower case letters
Plural	Selectively do a plural form of a word based on a numeric value. For example, in a template, {commentCount:plural("Comment")} would result in "1 Comment" if commentCount was 1 or would be "x Comments" if the value is 0 or greater than 1
Round	Rounds the passed number to the required decimal precision. singular : String The singular form of the word plural : String (optional) The plural form of the word (defaults to the singular with an "s")
StripScripts	Strips all script tags precision : Number The number of decimal places to which to round the first parameter's value
StripTags	Strips all HTML tags
Substr	Returns a substring from within an original string
Trim	Trims any whitespace from either side of a string start : Number The start index of the substring length : Number The length of the substring
Undef	Checks a reference and converts it to empty string if it is undefined
Uppercase	Converts a string to all upper case letters
UsMoney	Format a number as US currency
EuroMoney	Format a number as Euro currency

 

演示

代码如下所示：

<%@ Page Language="C#" %>

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>

<%@ Import Namespace="System.Data" %>

1: 

2:         protected void Page_Load(object sender, EventArgs e)

3:         {

4:             if (!X.IsAjaxRequest)

5:             {

6:                 DataTable dt = ExtNetRendererFormatDemo.DataSource.CreateDataSource();

7:                 this.Store1.DataSource = dt;

8:                 this.Store1.DataBind();

9:             }

10:         }

11:

</

script

>

运行界面：

说明：

1，两列“员工姓名”的区别，分别为全部大写和头字母大写；

2，两列“出生日期”的区别，日期格式不同；

3，两列“工作”的区别，分别为美元和欧元表示。