HoverTree.DBTools/KeleyiSQLHelper.cs

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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;

namespace HoverTree.DBTools
{
    /// <summary>
    /// Copyright (C) 2009-2015 51aspx.com 
    /// 柯乐义SQLServer访问类
    /// 
    /// </summary>
    public abstract class KeleyiSQLHelper
    {
        /// <summary>
        /// 修改连接串适应具体环境
        /// </summary>
        protected static string connectionString = "Data Source=.;Initial Catalog=HoverTree;Integrated Security=True;";

        

        #region 公用方法
        public static int GetMaxID(string FieldName, string TableName)
        {
            string strsql = "select max(" + FieldName + ")+1 from " + TableName;
            object obj = GetSingle(strsql);
            if (obj == null)
            {
                return 1;
            }
            else
            {
                return int.Parse(obj.ToString());
            }
        }
        public static bool Exists(string strSql, params SqlParameter[] cmdParms)
        {
            object obj = GetSingle(strSql, cmdParms);
            int cmdresult;
            if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
            {
                cmdresult = 0;
            }
            else
            {
                cmdresult = int.Parse(obj.ToString());
            }
            if (cmdresult == 0)
            {
                return false;
            }
            else
            {
                return true;
            }
        }
        #endregion
        #region 执行简单SQL语句
        /// <summary>