App_Code/MachineryMgr.cs

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using System;
using System.Data;
using System.Data.SqlClient;

/// <summary>
/// Machinery管理类
/// </summary>
public class MachineryMgr
{
	/// <summary>
	/// 初始化管理类
	/// </summary>
	public MachineryMgr()
	{
	}

	#region　函数UpdateMachinery | 更新Machinery信息
	/// <summary>
	/// 更新Machinery类信息
	/// </summary>
	/// <param name="machinery">设备信息类参数</param>
	/// <returns>更新成功返回true 否则返回false</returns>
	public bool UpdateMachinery(Machinery machinery)
	{
		string strSQL = "";
		SqlDataAdapter sa = null;
		SqlCommandBuilder builder = null;
		DataRow row = null;
		DataTable dt = null;
		bool returnValue = false;
		if (machinery != null)
		{
			if (machinery.MachineryID == 0)
			{
				strSQL = "SELECT Top 0 * FROM Machinery";
			}
			else
			{
				strSQL = "SELECT * FROM Machinery WHERE MachineryID = '" + machinery.MachineryID + "'";
			}

			dt = CMMgr.GetDataTable(strSQL);

			 if (dt.Rows.Count > 0)
			{
				row = dt.Rows[0];
			}
			else
			{
				row = dt.NewRow();
			}
			row["MachineryName"] = machinery.MachineryName;
			row["Corp"] = machinery.Corp;
			if (machinery.BuysDate == DateTime.MaxValue)
			{
				row["BuysDate"] = System.DBNull.Value;
			}
			else
			{
				row["BuysDate"] = machinery.BuysDate;