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<title>第十三章 数据库编程基础</title>
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<div style='text-align:justify;mso-line-spacing:"100 50 0";position:absolute;
top:6.5%;left:9.36%;width:13.48%;height:5.25%'><nobr><span style='font-family:
"Times New Roman";mso-ascii-font-family:"Times New Roman";mso-fareast-font-family:
楷体_GB2312'><b><span style='mso-spacerun:yes'> </span>3</b></span><span
style='font-family:楷体_GB2312;mso-fareast-font-family:楷体_GB2312'><b>．方法 </b></span></nobr></div>
<div style='mso-line-spacing:"100 50 0";position:absolute;top:14.49%;
left:9.36%;width:85.58%;height:5.25%'><span style='font-family:宋体;mso-ascii-font-family:
宋体;mso-fareast-font-family:宋体'><b>（</b></span><span lang=EN-US
style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>1</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>）</b></span><span
lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>Refresh</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>方法</b></span><span
style='font-family:"Arial Unicode MS";mso-fareast-font-family:"Arial Unicode MS";
display:none'><b> </b></span></div>
<div style='mso-line-spacing:"100 50 0"'><span style='position:absolute;
top:22.5%;left:9.36%;width:102.05%;height:5.25%'><span style='font-family:
宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>可以在数据控件上使用</b></span><span
lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>Refresh</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>方法来打开或重新打开数据</b></span></span><span
style='position:absolute;top:27.75%;left:9.36%;width:102.8%;height:5.25%'><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>库（如果</b></span><span
style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS"'><b> DatabaseName</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>、</b></span><span
lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>ReadOnly</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>或</b></span><span
lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>Connect</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>属性的设置</b></span></span><span
style='position:absolute;top:33.5%;left:9.36%;width:85.58%;height:4.75%'><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>值发生改变）。</b></span><span
style='font-family:"Arial Unicode MS";mso-fareast-font-family:"Arial Unicode MS";
display:none'><b> </b></span></span></div>
<div style='mso-line-spacing:"100 50 0";position:absolute;top:41.25%;
left:9.36%;width:85.58%;height:5.25%'><span style='font-family:宋体;mso-ascii-font-family:
宋体;mso-fareast-font-family:宋体'><b>（</b></span><span lang=EN-US
style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>2</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>）</b></span><span
lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>UpdateControls</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>方法</b></span><span
style='font-family:"Arial Unicode MS";mso-fareast-font-family:"Arial Unicode MS";
display:none'><b> </b></span></div>
<div style='mso-line-spacing:"100 50 0"'><span style='position:absolute;
top:49.25%;left:9.36%;width:101.68%;height:5.25%'><span style='font-family:
宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>此方法用于从数据控件的</b></span><span
lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>Recordset</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>对象中读取当前记录，</b></span></span><span
style='position:absolute;top:55.0%;left:9.36%;width:85.58%;height:4.75%'><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>并将数据显示在相关约束控件上。</b></span><span
style='font-family:"Arial Unicode MS";mso-fareast-font-family:"Arial Unicode MS";
display:none'><b> </b></span></span></div>
<div style='mso-line-spacing:"100 50 0";position:absolute;top:62.5%;
left:9.36%;width:85.58%;height:5.25%'><span style='font-family:宋体;mso-ascii-font-family:
宋体;mso-fareast-font-family:宋体'><b>（</b></span><span lang=EN-US
style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>3</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>）</b></span><span
lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>UpdateRecord</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>方法</b></span><span
style='font-family:"Arial Unicode MS";mso-fareast-font-family:"Arial Unicode MS";
display:none'><b> </b></span></div>
<div style='text-align:justify;mso-line-spacing:"100 50 0";position:absolute;
top:71.0%;left:9.36%;width:85.58%;height:15.25%'><span style='font-family:
宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>当约束控件的内容改变时，如果不移动记录指针，则数据库中的值不会改变，可通过调用</b></span><span
lang=EN-US style='mso-fareast-language:ZH-CN'><b>UpdateRecord</b></span><span
style='font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体'><b>方法来确认对记录的修改，将约束控件中的数据强制写入数据库中。</b></span><span
style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:楷体_GB2312'><b> </b></span></div>
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