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if (((string)((ComboBoxItem)cmbField.SelectedItem).Value).Equals("System.DateTime"))
{
                    //ÅжÏÈÕÆÚµÄ;
                
                    if (checkBox1.Checked == true)
                    {
                        value = "#" + cmbValue.SelectedItem.ToString().Trim() + "#";
                    }
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asp.net c# Êý¾Ý¿â±¸·Ý

protected void btnsearch_ServerClick(object sender, EventArgs e)
    {
        string lujing=this.Text2.Value.ToString().Trim();
        string shujuku = this.jine.Value;
      &nbs ......

asp.net c#Êý¾Ý¿â»¹Ô­

public partial class shujuku_huanyuan : System.Web.UI.Page
{
    SqlConnection conn =  new SqlConnection(@"server=HUAZD-33\XXD33;uid=sa;pwd=111111;database=master;");
   
    protected void Page_Load(object sender, EventArgs e)
  &nbs ......

vb.net²Ù×÷Êý¾Ý¿âÖ®ACCESS£¨1£©

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Access µÄ SQL ÖУ¬¼ÆËãÏàÓ¦±àºÅµÄ¼Ç¼֮¼ä ¼Ó ¼õ µÄ²éѯÃüÁî
ÀýÈç ¼ÆËãIDΪ 6 µÄ ºÏ¼Æ ¼õÈ¥ ID Ϊ 2¡¢3¡¢4 ÒÔ¼°¼ÓÉÏ ID Ϊ 5 µÄºÏ¼Æ
SELECT SUM(R) AS ½á¹û
from
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  SELECT -ºÏ¼Æ AS R from T1 WHERE (ID = 2) UNION
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