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C# accessÈÕÆÚ²éѯ¼Ó#
if (((string)((ComboBoxItem)cmbField.SelectedItem).Value).Equals("System.DateTime"))
{
//ÅжÏÈÕÆÚµÄ;
if (checkBox1.Checked == true)
{
value = "#" + cmbValue.SelectedItem.ToString().Trim() + "#";
}
}
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using System.Security.Cryptography;
using System.IO;
using System.text;
/// <summary>
/// ¼ÓÃÜ
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SELECT SUM(R) AS ½á¹û
from
(
SELECT ºÏ¼Æ AS R from T1 WHERE (ID = 6) UNION
SELECT -ºÏ¼Æ AS R from T1 WHERE (ID = 2) UNION
SELECT -ºÏ¼Æ AS R f ......