XForms/控制按鈕外觀

本示例演示瞭如何使用標籤、提示文字和影像來控制按鈕外觀。要檢視按鈕影像，您需要在執行此程式的資料夾中建立一個名為 XForms-button.jpg 的檔案。

本示例需要在程式中使用影像。

您可以從此處下載此影像：.

程式

<html
   xmlns="http://www.w3.org/1999/xhtml" 
   xmlns:xf="http://www.w3.org/2002/xforms" 
   xmlns:ev="http://www.w3.org/2001/xml-events">
   <head>
      <title>XForms Trigger Appearances</title>
      <xf:model>
         <xf:instance xmlns="">
            <data>
               <label>Label text from the model</label>
               <message>Message text from the model</message>
               <hint>Hint text from the model</hint>
            </data>
         </xf:instance>
         <xf:submission method="post" id="submission" />
      </xf:model>
   </head>
   <body>
      <h1>Test of Trigger Appearances</h1>
      <p>A simple model button that brings up a message in a window:
      <br/>
         <xf:trigger>
            <xf:label>Simple Button</xf:label>
            <xf:message level="modal" ev:event="DOMActivate">Button clicked</xf:message>
         </xf:trigger>
         <br/>
      </p>
      <p>A model button that also displays "hint text" when you hover over the button:
			<br />
         <xf:trigger>
            <xf:label>Button With Hint Text On Hover</xf:label>
            <xf:message level="modal" ev:event="DOMActivate">Button clicked</xf:message>
            <xf:hint>This is the hint text.</xf:hint>
         </xf:trigger>
         <br />
      </p>
      <p>A button that includes an image and hint text:
			<br />
         <xf:trigger appearance="xf:image">
            <img src="XForms-button.jpg" />
            <xf:message level="modal" ev:event="DOMActivate">Image 
clicked</xf:message>
            <xf:hint>This hint text comes up if you hover over a button.</xf:hint>
         </xf:trigger>
         <br />
      </p>
      <p>A button that includes text, and image and text:
			<br />
         <xf:trigger appearance="xf:image">
            <xf:label>Text before the image... <img src="XForms-button.jpg" /> ...text after the image.</xf:label>
            <xf:message level="modal" ref="message" ev:event="DOMActivate" />
            <xf:hint>Hints work with labels and images.</xf:hint>
         </xf:trigger>
         <br />
      </p>
      <p>A trigger that extracts the label, hint and message text from the model:
			<br />
         <xf:trigger>
            <xf:label ref="label" />
            <xf:message level="modal" ref="message" ev:event="DOMActivate" />
            <xf:hint ref="hint" />
         </xf:trigger>
         <br />
      </p>
   </body>
</html>

討論

XForm 規範還使用 xf:help 標籤，允許上下文相關的幫助。此標籤的工作方式與 hint 標籤相同，但會由瀏覽器的幫助功能或系統幫助功能啟用。您也可以使用樣式表來使用 help 標籤。

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