在 toolStrip 中增加DateTimePicker 控件,并解决两个日期型控件联动问题

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在 toolStrip 中增加DateTimePicker 控件,并解决两个日期型控件联动问题      DateTimePicker dtpStart, dtpEnd; //两个日期控件      private void initializeControls()      {         try         {            #region 增加 日期            dtpStart = new DateTimePicker();            //dtpStart.Format = DateTimePickerFormat.Custom;//自动设置            //dtpStart.CustomFormat = "MM月dd日";//自定义格式             dtpStart.Format = DateTimePickerFormat.Short;            dtpStart.Width = 120;            dtpStart.Value = DateTime.Now;            dtpStart.ShowCheckBox = true;           // Controls.Add(dtpStart);            ToolStripControlHost dateStartItem = new ToolStripControlHost(dtpStart);            this.toolStrip1.Items.Insert(1, dateStartItem);            dtpEnd = new DateTimePicker();            //dtpEnd.Format = DateTimePickerFormat.Custom;//自动设置            //dtpEnd.CustomFormat = "MM月dd日";//自定义格式             dtpEnd.Format = DateTimePickerFormat.Short;            dtpEnd.Width = 120;            dtpEnd.Value = DateTime.Now;            dtpEnd.ShowCheckBox = true;            //Controls.Add(dtpEnd);            ToolStripControlHost dateEndItem = new ToolStripControlHost(dtpEnd);            this.toolStrip1.Items.Insert(3, dateEndItem);            dtpEnd.Enabled = false; //使之不能使用,以便控件两个控件联动.            dtpStart.Checked = false;            dtpEnd.Checked = false;            #endregion            //先注册声明一个事件绑定：            dtpStart.Leave += new EventHandler(dtpStart_Leave);            dtpStart.MouseLeave += new EventHandler(dtpStart_Leave);            tsmCDSave.Enabled = false ;            tsmHS.Enabled = false ;            tsmHSsave.Enabled = false;            tsmCF.Enabled = false;            tsmCFsave.Enabled = false;            tsmDJ.Enabled = false;            tsmDJsave.Enabled = false;            tsmTzUpt.Enabled = false;         }         catch (Exception exc)         {            MessageBox.Show(exc.Message, "异常信息 initializeControls ", MessageBoxButtons.OK, MessageBoxIcon.Error);         }      }      private void dtpStart_Leave(object sender, EventArgs e)      {         try         {            if (dtpStart.Checked )            {               dtpEnd.Checked = true;               dtpStart.Checked = true;               dtpEnd.Enabled = true;            }            else if( !dtpStart.Checked  )            {               dtpEnd.Checked = false;               dtpStart.Checked = false;               dtpEnd.Enabled = false;            }            toolTip1.SetToolTip(this.dtpStart, "日期只能都选或者都不选");         }         catch (Exception exc)         {            MessageBox.Show(exc.Message, "异常信息 dtpStart_MouseEnter ", MessageBoxButtons.OK, MessageBoxIcon.Error);         }      }
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