{"id":12451,"date":"2025-01-15T08:47:18","date_gmt":"2025-01-15T08:47:18","guid":{"rendered":"https:\/\/blog.ezworkapp.com\/index.php\/2025\/01\/15\/bao-loi-trung-noi-dung-trong-1-vung-bang-custom-data-validation\/"},"modified":"2025-01-15T08:47:18","modified_gmt":"2025-01-15T08:47:18","slug":"bao-loi-trung-noi-dung-trong-1-vung-bang-custom-data-validation","status":"publish","type":"post","link":"https:\/\/blog.ezworkapp.com\/index.php\/2025\/01\/15\/bao-loi-trung-noi-dung-trong-1-vung-bang-custom-data-validation\/","title":{"rendered":"B\u00e1o l\u1ed7i tr\u00f9ng n\u1ed9i dung trong 1 v\u00f9ng b\u1eb1ng Custom Data Validation"},"content":{"rendered":"
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T\u00ednh n\u0103ng Data Validation l\u00e0 1 t\u00ednh n\u0103ng r\u1ea5t h\u1eefu d\u1ee5ng trong Excel gi\u00fap ch\u00fang ta nh\u1eadp d\u1eef li\u1ec7u 1 c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 nhanh ch\u00f3ng. C\u00f3 1 tr\u01b0\u1eddng h\u1ee3p m\u00e0 t\u00ednh n\u0103ng Data Validation c\u00f3 th\u1ec3 gi\u00fap ch\u00fang ta n\u1eefa, \u0111\u00f3 ch\u00ednh l\u00e0 ki\u1ec3m tra d\u1eef li\u1ec7u nh\u1eadp tr\u00f9ng trong 1 v\u00f9ng Excel. B\u00e0i h\u00f4m nay c\u00e1c b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c h\u01b0\u1edbng d\u1eabn thi\u1ebft l\u1eadp cho t\u00ednh n\u0103ng nay.<\/p>\n

Trong Excel, 1 sheet b\u1ea5t k\u00ec, b\u1ea1n ch\u1ecdn v\u00f9ng c\u1ea7n ki\u1ec3m tra d\u1eef li\u1ec7u nh\u1eadp tr\u00f9ng r\u1ed3i b\u1ea5m th\u1ebb Data\u00a0> ch\u1ecdn Data Validation. Trong h\u1ed9p tho\u1ea1i Data Validation, th\u1ebb Settings, m\u1ee5c Allow, ch\u1ecdn Custom v\u00e0 \u0111\u01b0a v\u00e0o c\u00f4ng th\u1ee9c sau \u0111\u00e2y \u1edf trong m\u1ee5c Formula:<\/p>\n

=COUNTIF($A$1:$A$10,A1)=1<\/strong><\/p>\n

\"khong<\/a><\/p>\n

\u0110\u1ec3 ra 1 th\u00f4ng b\u00e1o khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadp d\u1eef li\u1ec7u tr\u00f9ng trong v\u00f9ng c\u1ea7n ki\u1ec3m tra, trong c\u1eeda s\u1ed5 Data Validation, th\u1ebb Error Alert, c\u00e1c b\u1ea1n thi\u1ebft l\u1eadp nh\u01b0 h\u00ecnh minh ho\u1ea1<\/p>\n

\"khong<\/a><\/p>\n

https:\/\/www.hocexcel.online\/ex101<\/a><\/p>\n

\u00a0<\/p>\n

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\n<\/a>\n<\/div>\n<\/div>\n<\/div>\n
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Click \u0111\u0103ng k\u00fd h\u1ecdc t\u1ea1i:<\/p>\n

T\u1ea5t c\u1ea3 kho\u00e1 h\u1ecdc\u00a0\ud83d\udcd6<\/span><\/a><\/p>\n

H\u01b0\u1edbng d\u1eabn k\u00edch ho\u1ea1t<\/a><\/p>\n

HKD H\u1ecdc Excel Online
S\u1ed1 \u0110K: 17A80048102<\/p>\n<\/div>\n

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\u00a9 document.currentScript.insertAdjacentHTML(‘afterend’, ” + new Intl.DateTimeFormat(document.documentElement.lang, {year: ‘numeric’}).format() + ”); H\u1ecdc Excel Online. All rights reserved.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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