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VB6, IsNull, 在VB6中出現"NULL值使用不正確"
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| '# 在VB6中出現"NULL值使用不正確" | |
| '# 參考文章http://www.blueshop.com.tw/board/FUM200501271723350KG/BRD200512090832443X3.html | |
| '# 法一：使用 IIF 與 IsNull 函數 | |
| '# [變數] = IIf(IsNull([變數]), [預設值], [變數]) | |
| field_value = IIf(IsNull(rs.Fields(9).Value), "", rs.Fields(9).Value) | |
| '# 法二: 串接空字串 | |
| '# 變數 = Trim(變數 & "") | |
| field_value = rs.Fields(9).Value & "" | |
| ' 註：此例中 rs 是VB6的Recordset物件 |
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