我的数据集格式如下所示
EMPNAME FRMDATE TODATE
ANU 01-10-2012 01-20-2012
HARI 01-05-2012 02-05-2012
现在通过文本框输入01-17-2012
作为特定员工的输入。
我的问题是:如何检查i / p日期是否在数据集中的这两列(FRMDATE,TODATE)之间?
答案 0 :(得分:0)
试试这个
DataRow []_dr= ds.Tables[0].Select( inputDate +">= FRMDATE AND "+inputDate +" <= TODATE");
答案 1 :(得分:0)
我相信下面的方法对您有所帮助,因为有关比较日期的额外阅读材料可以看看这两个主题:
Using linq or lambda to compare dates
Check if datetime instance falls in between other two datetime objects
using System;
using System.Data;
using System.Data.SqlClient;
using System.Web.Configuration;
public bool IsDateInRange(string date, string employeeId)
{
DateTime dateToCompare = DateTime.MinValue;
bool isInRange = false;
if (!String.IsNullOrEmpty(date) && !String.IsNullOrEmpty(employeeId) &&
DateTime.TryParse(date, out dateToCompare))
{
DataTable table = new DataTable();
string connectionString = WebConfigurationManager.ConnectionStrings["conn"].ConnectionString;
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
using (SqlCommand command = new SqlCommand())
{
command.Connection = connection;
command.CommandText = "SELECT TOP 1 * FROM EmployeeDates WHERE EMPNAME = @EmpName";
command.Parameters.AddWithValue("@EmpName", employeeId);
SqlDataAdapter adapter = new SqlDataAdapter(command);
adapter.Fill(table);
DateTime fomDate = (DateTime)table.Rows[0]["FRMDATE"];
DateTime toDate = (DateTime)table.Rows[0]["TODATE"];
//DateTime.Ticks converts a date into long
//Now you can simply compare whether the input date falls between the required range
if (dateToCompare.Ticks >= fomDate.Ticks && dateToCompare.Ticks <= toDate.Ticks)
{
isInRange = true;
}
connection.Close();
}
}
}
return isInRange;
}
答案 2 :(得分:0)
db.ClubPorsant.Where(p => p.CreateDate> = _FromDate && p.CreateDate <= _ToDate).OrderByDescending(p => p.MablaghVariz).ThenByDescending(p => p.Shomarehesab).ToList() ;