SpreadJS是一個面向企業級應用開發的綜合性、高效能的基于HTML5的純JavaScript的電子表格控件。SpreadJS有著強大的表單處理能力和電子表格功能。這些功能包括跨表單引用和計算，這樣就能夠充分利用多個表單上的數據和公式。它具有豐富的客戶端JavaScript API，為您提供了所需要的靈活的客戶端編程。本文主要描述了在SpreadJS中，怎樣添加背景圖片和水印。
點擊下載SpreadJS正式版
添加背景圖片
你可以給一個單元格，一列，一行或者整個表格設置背景圖片。
你需要提供一個Base 64 編碼的位圖（BitMap） 或者一個指向圖片的 Uri.
ImageLayout 枚舉描述了背景圖片如何填充所在的區域：拉伸填充，按比例拉伸，居中，或者保持原尺寸。
參考代碼
以下代碼給單元格，列和行添加了背景圖片：
JavaScript
var cellImage = document.getElementById("circle").src;
var rowImage = "./css/images/quarter1.png";
var colImage = document.getElementById("logo").src;
sheet.getCell(3, 3).backgroundImage(cellImage);
sheet.getRange(1, -1, 1, -1).backgroundImage(rowImage);
sheet.getRange(-1, 1, -1, 1).backgroundImage(colImage);
...
<img src="./css/images/box3.png" id="logo"/>
<img src="./css/images/greencircle.png" id="circle"/>參考代碼
以下代碼使用 Base64 設置背景圖片：
JavaScript
var base64Image =
"data:image/png;base64,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";
var cellImage = base64Image;
sheet.getCell(1, 1).backgroundImage(cellImage);
參考代碼
以下代碼給一行添加了背景圖片，并將其居中。
JavaScript
var cellImage = document.getElementById("circle").src;
var rowImage = "./css/images/quarter1.png";
var colImage = document.getElementById("logo").src;
activeSheet.getCell(3, 3).backgroundImage(cellImage);
activeSheet.getRange(1, -1, 1, -1).backgroundImage(rowImage);
activeSheet.getRange(-1, 1, -1, 1).backgroundImage(colImage);
activeSheet.getRange(1, -1, 1, -1).backgroundImageLayout(GC.Spread.Sheets.ImageLayout.Center);
...
<img src="./css/images/box3.png" id="logo"/>
<img src="./css/images/greencircle.png" id="circle"/>添加水印
水印指的是，當單元格的值為空時，顯示的內容。
你可以為單元格設置水印。
要添加水印，你需要：
水印文字不會溢出到該單元格的外面。
示例代碼
此代碼將會在 B1 和 B2 單元格中設置水印。
JavaScript
var type = new GC.Spread.Sheets.Style();
type.watermark = "User name";sheet.setStyle(0, 1, type);
var type = new GC.Spread.Sheets.Style();
type.watermark = "Password";sheet.setStyle(1, 1, type);
本文內容到這里就結束了，感興趣的朋友可以繼續關注我們哦，小編會繼續更新半島外圍網上直營相關的文章資訊~您也可以下載SpreadJS試用版進行評估哦~
想要購買SpreadJS正版授權，或了解更多產品信息請點擊
標簽：
本站文章除注明轉載外，均為本站原創或翻譯。歡迎任何形式的轉載，但請務必注明出處、不得修改原文相關鏈接，如果存在內容上的異議請郵件反饋至chenjj@ke049m.cn
文章轉載自：
半島外圍網上直營 
11次
相關產品
正式授權
最新文章 
半島外圍網上直營相關的文章 
微信
在線咨詢
渝公網安備
50010702500608號
客服熱線