双福语音浏览器,股票交易费,郭德纲最新相声
/// <summary>
/// 执行存储过程(返回记录集)
/// </summary>
/// <param name="procname">过程名</param>
/// <param name="hashtable">传入的参数表</param>
/// <returns>返回记录集</returns>
public dataset execprocedure(string procname, system.collections.hashtable hashtable)
{
system.data.dataset ds = new dataset();
com.commandtext = procname;
com.commandtype = commandtype.storedprocedure;
system.collections.idictionaryenumerator ide = hashtable.getenumerator();
while (ide.movenext())
{
system.data.sqlclient.sqlparameter p = new system.data.sqlclient.sqlparameter(ide.key.tostring(), ide.value);
com.parameters.add(p);
}
try
{
system.data.sqlclient.sqldataadapter da = new system.data.sqlclient.sqldataadapter(com);
da.fill(ds);
da.dispose();
}
catch (exception ee)
{
throw new exception(ee.message.tostring());
}
finally
{
com.cancel();
}
return ds;
}
#endregion
#region 数据操作
/// <summary>
/// 统计某表记录总数
/// </summary>
/// <param name="keyfield">主键/索引键</param>
/// <param name="tablename">数据库.用户名.表名</param>
/// <param name="condition">查询条件</param>
/// <returns>返回记录总数</returns>
public int getrecordcount(string keyfield, string tablename, string condition)
{
int recordcount = 0;
string sql = "select count(" + keyfield + ") as count from " + tablename + " " + condition;
system.data.dataset ds = getdataset(sql);
if (ds.tables[0].rows.count > 0)
{
recordcount =convert.toint32(ds.tables[0].rows[0][0]);
}
ds.clear();
ds.dispose();
return recordcount;
}
/// <summary>
/// 统计某表记录总数
/// </summary>
/// <param name="field">可重复的字段</param>
/// <param name="tablename">数据库.用户名.表名</param>
/// <param name="condition">查询条件</param>
/// <param name="flag">字段是否主键</param>
/// <returns>返回记录总数</returns>
public int getrecordcount(string field, string tablename, string condition, bool flag)
{
int recordcount = 0;
if (flag)
{
recordcount = getrecordcount(field, tablename, condition);
}
else
{
string sql = "select count(distinct(" + field + ")) as count from " + tablename + " " + condition;
system.data.dataset ds = getdataset(sql);
if (ds.tables[0].rows.count > 0)
{
recordcount = convert.toint32(ds.tables[0].rows[0][0]);
}
ds.clear();
ds.dispose();
}
return recordcount;
}
/// <summary>
/// 统计某表分页总数
/// </summary>
/// <param name="keyfield">主键/索引键</param>
/// <param name="tablename">表名</param>
/// <param name="condition">查询条件</param>
/// <param name="pagesize">页宽</param>
/// <param name="recordcount">记录总数</param>
/// <returns>返回分页总数</returns>
public int getpagecount(string keyfield, string tablename, string condition, int pagesize, int recordcount)
{
int pagecount = 0;
pagecount = (recordcount % pagesize) > 0 ? (recordcount / pagesize) + 1 : recordcount / pagesize;
if (pagecount < 1) pagecount = 1;
return pagecount;
}
/// <summary>
/// 统计某表分页总数
/// </summary>
/// <param name="keyfield">主键/索引键</param>
/// <param name="tablename">表名</param>
/// <param name="condition">查询条件</param>
/// <param name="pagesize">页宽</param>
/// <returns>返回页面总数</returns>
public int getpagecount(string keyfield, string tablename, string condition, int pagesize, ref int recordcount)
{
recordcount = getrecordcount(keyfield, tablename, condition);
return getpagecount(keyfield, tablename, condition, pagesize, recordcount);
}
/// <summary>
/// 统计某表分页总数
/// </summary>
/// <param name="field">可重复的字段</param>
/// <param name="tablename">表名</param>
/// <param name="condition">查询条件</param>
/// <param name="pagesize">页宽</param>
/// <param name="flag">是否主键</param>
/// <returns>返回页页总数</returns>
public int getpagecount(string field, string tablename, string condition, ref int recordcount, int pagesize, bool flag)
{
recordcount = getrecordcount(field, tablename, condition, flag);
return getpagecount(field, tablename, condition, pagesize, ref recordcount);
}
#endregion
#region 分页函数
/// <summary>
/// 构造分页查询sql语句
/// </summary>
/// <param name="keyfield">主键</param>
/// <param name="fieldstr">所有需要查询的字段(field1,field2...)</param>
/// <param name="tablename">库名.拥有者.表名</param>
/// <param name="condition">查询条件1(where ...)</param>
/// <param name="condition2">查询条件2(order by ...)</param>
/// <param name="currentpage">当前页号</param>
/// <param name="pagesize">页宽</param>
/// <returns>sql语句</returns>
public static string joinpagesql(string keyfield, string fieldstr, string tablename, string condition, string condition2, int currentpage, int pagesize)
{
string sql = null;
if (currentpage == 1)
{
sql = "select top " + currentpage * pagesize + " " + fieldstr + " from " + tablename + " " + condition + " " + condition2 + " ";
}
else
{
sql = "select * from (";
sql += "select top " + currentpage * pagesize + " " + fieldstr + " from " + tablename + " " + condition + " " + condition2 + ") a ";
sql += "where " + keyfield + " not in (";
sql += "select top " + (currentpage - 1) * pagesize + " " + keyfield + " from " + tablename + " " + condition + " " + condition2 + ")";
}
return sql;
}
/// <summary>
/// 构造分页查询sql语句
/// </summary>
/// <param name="field">字段名(非主键)</param>
/// <param name="tablename">库名.拥有者.表名</param>
/// <param name="condition">查询条件1(where ...)</param>
/// <param name="condition2">查询条件2(order by ...)</param>
/// <param name="currentpage">当前页号</param>
/// <param name="pagesize">页宽</param>
/// <returns>sql语句</returns>
public static string joinpagesql(string field, string tablename, string condition, string condition2, int currentpage, int pagesize)
{
string sql = null;
if (currentpage == 1)
{
sql = "select top " + currentpage * pagesize + " " + field + " from " + tablename + " " + condition + " " + condition2 + " group by " + field;
}
else
{
sql = "select * from (";
sql += "select top " + currentpage * pagesize + " " + field + " from " + tablename + " " + condition + " " + condition2 + " group by " + field + " ) a ";
sql += "where " + field + " not in (";
sql += "select top " + (currentpage - 1) * pagesize + " " + field + " from " + tablename + " " + condition + " " + condition2 + " group by " + field + ")";
}
return sql;
}
/// <summary>
/// 页面分页显示功能
/// </summary>
/// <param name="parameters">参数串(a=1&b=2...)</param>
/// <param name="recordcount">记录总数</param>
/// <param name="pagesize">页宽</param>
/// <param name="currentpage">当前页号</param>
/// <param name="showjump">是否显示跳转输入框及按钮</param>
/// <param name="style">样式(1:上页下页...,2:1234...)</param>
/// <returns></returns>
public static string paging(string parameters, int recordcount, int pagecount, int pagesize, int currentpage, bool showjump, int style)
{
string str;
if (recordcount <= pagesize) return "";
if (parameters != "") parameters += "&";
if (currentpage < 1) currentpage = 1;
if (currentpage > pagecount) currentpage = pagecount;
str = "<table align='center' width=\"100%\"><tr><td align=\"center\">";
str += "共 " + recordcount + " 条记录 页次：" + currentpage + "/" + pagecount + "页 ";
str += pagesize + "条/页 ";
if (style == 1)
{
if (currentpage == 1)
str += "<font color=\"#999999\">首页 上页</font> ";
else
{
str += "<a href='?" + parameters + "page=1' class=\"link\">首页</a> ";
str += "<a href='?" + parameters + "page=" + (currentpage - 1) + "' class=\"link\">上页</a> "; ;
}
if (currentpage == pagecount )
{
str += "<font color=\"#999999\">下页 尾页</font> ";
}
else
{
str += "<a href='?" + parameters + "page=" + (currentpage + 1) + "' class=\"link\">下页</a> ";
str += "<a href='?" + parameters + "page=" + pagecount + "' class=\"link\">尾页</a> ";
}
}
else if (style == 2)
{
int numbersize = 10;
int pagenumber = (currentpage - 1) / numbersize;
if (pagenumber * numbersize > 0)
str += "<a href='?" + parameters + "page=" + pagenumber * numbersize + "' title=上十页 >[<<]</a> ";
int i;
for (i = pagenumber * numbersize + 1; i <= (pagenumber + 1) * numbersize; i++)
{
if (i == currentpage)
str += "<strong><font color=#ff0000>[" + i + "]</font></strong> ";
else
str += "<a href='?" + parameters + "page=" + i + "'>[" + i + "]</a> ";
if (i == pagecount) break;
}
if (i < recordcount) str += "<a href='?" + parameters + "page=" + i + "' title=下十页>[>>]</a> ";
}
if (showjump)
{
str += "";
}
str += "</td></tr></table>";
return str;
}
#endregion
}
}
2
如对本文有疑问，请在下面进行留言讨论，广大热心网友会与你互动！！
点击进行留言回复
我要评论
网友评论