ASP. For the current time, this week, last week, next week, Monday, Sunday, day

This week, 1st, returns the result format: 2014-5-5 0:00:00

public static DateTime Getmondaydate ()

{

DateTime Dt=datetime.now;

int today= (int) dt. DayOfWeek;

if (dt. Dayofweek.tostring ()! = "Sunday")//You can also use the today!=0

{

Return dt. AddDays (1-today). Date;

}

Else

{

Return dt. AddDays ( -6-today). date;//If today is Sunday, get the week 1st period is the date of the next Monday, so subtract 7 days

}

}

This Sunday day

public static DateTime Getsundaydate ()

{

DateTime Dt=datetime.now;

int today= (int) dt. DayOfWeek;

if (dt. Dayofweek.tostring ()! = "Sunday")//You can also use the today!=0

{

Return dt. AddDays (7-today). Date;

}

Else

{

Return dt. AddDays (-today). date;//If today is Sunday, get the Sunday date is the date of next Sunday, so subtract 7 days

}

}

Last 1st

public static DateTime Getlastmondaydate ()

{

DateTime Dt=datetime.now;

int today= (int) dt. DayOfWeek;

if (dt. Dayofweek.tostring ()! = "Sunday")//You can also use the today!=0

{

Return dt. AddDays (-today-6). Date;

}

Else

{

Return dt. AddDays (-TODAY-13). date;//If today is Sunday, get the date of last Monday is the date of this week Monday, so subtract 7 days

}

}

Last week Giges period

public static DateTime Getlastsundaydate ()

{

DateTime Dt=datetime.now;

int today= (int) dt. DayOfWeek;

if (dt. Dayofweek.tostring ()! = "Sunday")//You can also use the today!=0

{

Return dt. AddDays (-today). Date;

}

Else

{

Return dt. AddDays (-today-7). date;//If today is Sunday, get the date of last Sunday is the date of this week Sunday, so subtract 7 days

}

}

Next week 1st

public static DateTime Getnextmondaydate ()

{

DateTime Dt=datetime.now;

int today= (int) dt. DayOfWeek;

if (dt. Dayofweek.tostring ()! = "Sunday")//You can also use the today!=0

{

Return dt. AddDays (-today+8). Date;

}

Else

{

Return dt. AddDays (-today+1). date;//If today is Sunday, get the next week 1st period is next Monday date, so subtract 7 days

}

}

Next Sunday Day

public static DateTime Getnextsundaydate ()

{

DateTime Dt=datetime.now;

int today= (int) dt. DayOfWeek;

if (dt. Dayofweek.tostring ()! = "Sunday")//You can also use the today!=0

{

Return dt. AddDays (14-today). Date;

}

Else

{

Return dt. AddDays (7-today). date;//If today is Sunday, get the next Sunday day is next Sunday date, so subtract 7 days

}

}