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C# code:
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
namespace Security
{

public class ValidateBase : System.Web.UI.Page
{
private string sqlConnStr;
private SqlConnection conn;
public ValidateBase()
{
this.sqlConnStr = "Data Source=192.168.1.102;Initial Catalog=didian_data;User=sa;Password=sa;";
}
public ValidateBase(string connStr)
{
this.sqlConnStr = connStr;
}
private void Open()
{
if (this.conn == null)
this.conn = new SqlConnection(this.sqlConnStr);
if (this.conn.State == ConnectionState.Closed)
this.conn.Open();
}
private void Close()
{
if (this.conn.State == ConnectionState.Open)
this.conn.Close();
if (this.conn != null)
this.conn.Dispose();
this.conn = null;
}
public void BuildParameters(SqlParameter[] param, ref SqlCommand comm)
{
//Èô²ÎÊý²»Îª¿Õ£¬ÔòÌí¼Óµ½ÃüÁî¶ÔÏó
if (param != null


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DateTime endTime=DateTime(em_2.Text)

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@SYS_LNNO varchar(20),
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select cast(convert(numeric(18,2),1275674000000/100000000)as real)
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