你的位置:首页 > ASP.net教程

[ASP.net教程]C#设置系统日期和时间


C#设置系统日期和时间的代码分享,使用C#代码设置系统日期和时间的程序开发步骤如下:(1)为了使用DllImportAttribute类,需要引入命名空间:using System.Runtime.InteropServices;(2)自定义类SetSystemDateTime用于设置系统时间。代码如下:    public class SetSystemDateTime    {    [DllImportAttribute( "Kernel32.dll" )]    public static extern void GetLocalTime(SystemTime st ) ;    [DllImportAttribute( "Kernel32.dll" )]    public static extern void SetLocalTime(SystemTime st ) ;    }(3)自定义类SystemTime用于定义日期时间类。代码如下:    [StructLayoutAttribute( LayoutKind.Sequential)]    public class SystemTime    {    public ushort vYear;    public ushort vMonth;    public ushort vDayOfWeek;    public ushort vDay;    public ushort vHour;    public ushort vMinute;    public ushort vSecond;    }(4)选择一个时间,单击“设置系统新日期时间”按钮,在该按钮的Click事件下,调用自定义类SetSystemDateTime和SystemTime,修改当前系统日期时间。代码如下:private void button2_Click(object sender, EventArgs e)    {      //设置系统当前日期时间      if (MessageBox.Show("您真的确定更改系统当前日期和时间吗?", "信息提示", MessageBoxButtons.OK) == DialogResult.OK)      {        DateTime Year = this.dateTimePicker1.Value;        SystemTime MySystemTime = new SystemTime();        SetSystemDateTime.GetLocalTime(MySystemTime);        MySystemTime.vYear = (ushort)this.dateTimePicker1.Value.Year;        MySystemTime.vMonth = (ushort)this.dateTimePicker1.Value.Month;        MySystemTime.vDay = (ushort)this.dateTimePicker1.Value.Day;        MySystemTime.vHour = (ushort)this.dateTimePicker2.Value.Hour;        MySystemTime.vMinute = (ushort)this.dateTimePicker2.Value.Minute;        MySystemTime.vSecond = (ushort)this.dateTimePicker2.Value.Second;        SetSystemDateTime.SetLocalTime(MySystemTime);      }    }