public DataTable GetMPageDataTable(int pageIndex, int pageSize, string fields, string tableName, string conditions, string orderField, bool isDesc, bool showMehtodSql)
{
DataTable result;
try
{
int num = 0;
object obj = this.ExecuteScalar(string.Concat(new string[]
{
"select count(1) from ",
tableName,
" where 1 > 0 ",
conditions,
""
}));
if (obj != null)
{
num = int.Parse(obj.ToString());
}
int num2 = (num % pageSize == 0) ? pageSize : (num % pageSize);
int num3 = (num % pageSize == 0) ? (num / pageSize) : (SQLHelp.GetInt(num / pageSize) + 1);
string text;
if (isDesc)
{
if (pageIndex <= 1)
{
text = string.Concat(new object[]
{
"select top ",
pageSize,
" ",
fields,
" from ",
tableName,
" where 1 > 0 ",
conditions,
" order by ",
orderField,
" desc"
});
}
else
{
if (pageIndex >= num3)
{
text = string.Concat(new object[]
{
"select * from (select top ",
num2,
" ",
fields,
" from ",
tableName,
" where 1 > 0 ",
conditions,
" order by ",
orderField,
" asc) T order by ",
orderField,
" desc"
});
}
else
{
text = string.Concat(new object[]
{
"Select Top ",
pageSize,
" ",
fields,
" From ",
tableName,
" Where ",
orderField,
"<(Select Min(",
orderField,
") From (Select Top ",
(pageIndex - 1) * pageSize,
" ",
orderField,
" From ",
tableName,
" where 1=1 ",
conditions,
" Order By ",
orderField,
" desc) T) ",
conditions,
" Order By ",
orderField,
" desc "
});
}
}
}
else
{
if (pageIndex <= 1)
{
text = string.Concat(new object[]
{
"select top ",
pageSize,
" ",
fields,
" from ",
tableName,
" where 1 > 0 ",
conditions,
" order by ",
orderField,
" asc"
});
}
else
{
if (pageIndex >= num3)
{
text = string.Concat(new object[]
{
"select * from (select top ",
num2,
" ",
fields,
" from ",
tableName,
" where 1 > 0 ",
conditions,
" order by ",
orderField,
" desc) T order by ",
orderField,
" asc"
});
}
else
{
text = string.Concat(new object[]
{
"Select Top ",
pageSize,
" ",
fields,
" From ",
tableName,
" Where ",
orderField,
">=(Select Max(",
orderField,
") From (Select Top ",
(pageIndex - 1) * pageSize,
" ",
orderField,
" From ",
tableName,
" where 1=1 ",
conditions,
" Order By ",
orderField,
" Asc) T) ",
conditions,
" Order By ",
orderField,
" Asc"
});
}
}
}
if (showMehtodSql)
{
HttpContext.Current.Response.Write(text);
}
DataTable dataTable = this.GetDataTable(text);
result = dataTable;
}
catch (Exception)
{
result = null;
}
return(result);
}
public DataTable GetPageDataTable(int pageIndex, int pageSize, int recordCount, string fields, string tableName, string orderField, string conditions, bool isDesc, bool showMehtodSql)
{
DataTable result;
try
{
using (SqlConnection sqlConnection = new SqlConnection(this.connStr))
{
sqlConnection.Open();
string text;
string text2;
if (isDesc)
{
text = "desc";
text2 = "asc";
}
else
{
text = "asc";
text2 = "desc";
}
int num = (recordCount % pageSize == 0) ? pageSize : (recordCount % pageSize);
int num2 = (recordCount % pageSize == 0) ? (recordCount / pageSize) : (SQLHelp.GetInt(recordCount / pageSize) + 1);
string text3;
if (pageIndex <= 1)
{
text3 = string.Concat(new object[]
{
"select top ",
pageSize,
" ",
fields,
" from ",
tableName,
" order by ",
orderField,
" ",
text
});
}
else
{
if (pageIndex >= num2)
{
text3 = string.Concat(new object[]
{
"select * from (select top ",
num,
" ",
fields,
" from ",
tableName,
" order by ",
orderField,
" ",
text2,
")table1 order by ",
orderField,
" ",
text
});
}
else
{
text3 = string.Concat(new object[]
{
"select * from (select top ",
pageSize,
" * from (select top ",
pageIndex * pageSize,
" ",
fields,
" from ",
tableName,
" order by ",
orderField,
" ",
text,
")table1 order by ",
orderField,
" ",
text2,
")table2 order by ",
orderField,
" ",
text
});
}
}
SqlDataAdapter sqlDataAdapter = new SqlDataAdapter(text3, sqlConnection);
DataTable dataTable = new DataTable();
sqlDataAdapter.Fill(dataTable);
if (showMehtodSql)
{
HttpContext.Current.Response.Write(text3);
}
result = dataTable;
}
}
catch (Exception ex)
{
throw new Exception(" " + ex.Message);
}
return(result);
}
