case 1:

case 3:

case 5:

case 7:

case 8:

case 10:

case 12:

return 31 ;

case 4:

case 6:

case 9:

case 11:

return 30 ;

default:

return 31 ;

}



}

private void SetRightFmt()

{

if (IsNull())

EmptyInput() ;

else

{

SetRightMonthDay() ;

}

this.Refresh() ;

}

private void SetRightMonthDay()

{

int MaxDay = GetThisMonthMaxDay() ;

int Day = int.Parse(tbDay.Text) ;



if (Day > MaxDay)

tbDay.Text = MaxDay.ToString() ;

}



private void IncDecDate(int iSign)

{

string strYear = tbYear.Text ;

if (strYear == "")

strYear = DateTime.Now.Year.ToString() ;

string strMonth = tbMonth.Text ;

if (strMonth == "")

strMonth = DateTime.Now.Month.ToString() ;

string strDay = tbDay.Text ;

if (strDay == "")

strDay = DateTime.Now.Day.ToString() ;



string strDate = strYear +"-"+ strMonth +"-" +strDay ;



DateTime dtOld = DateTime.Parse(strDate) ;

if (tbYear.Focused)

{

this.Value = dtOld.AddYears(1*iSign) ;

}

else if (tbMonth.Focused)

{

this.Value = dtOld.AddMonths(1*iSign) ;

}

else

{

this.Value = dtOld.AddDays(1*iSign) ;

}

}

private Form GetWindow()

{

Control con = this ;

while(!(con.Parent is Form))

con = con.Parent ;

return (Form)con.Parent ;

}

/// <summary>

/// 清理所有正在使用的资源。

/// </summary>

protected override void Dispose( bool disposing )

{

if( disposing )

{

if(components != null)

{

components.Dispose();

}

}

base.Dispose( disposing );

}

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