带复选框日期选择控件

运行效果如下：

 

实例代码如下：

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using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms;   namespace Demo.UC {     public partial class ChbDater : UserControl     {         /// <summary>         /// 本次操作所选日期列表         /// </summary>         private List<string> dataList = new List<string>();         public List<string> CurrentDataList         {             get { return this.dataList; }             set             {                 dataList = value;             }         }           public ChbDater()         {             InitializeComponent();         }           private void ChbDater_Load(object sender, EventArgs e)         {             InitYearAndMonth();               InitDaysControl(DateTime.Now.Year, DateTime.Now.Month);         }           private void InitDaysControl(int year, int month)         {             int uDays = 0;             if (month != 1) uDays = DateTime.DaysInMonth(year, month - 1);//当前月上一月的总天数             DateTime oneDay = new DateTime(year, month, 1);//当前月的第一天             int count = GetDays(oneDay.ToString("dddd"));             //初始化上一月日期信息             int k = count;             for (int i = count - 1; i > 0; i--)             {                 k--;                 CheckBox chb = tlpcontent.Controls.Find("checkBox" + k, true)[0] as CheckBox;                 if (chb != null)                 {                     if (k != 1) uDays--;                     chb.Text = uDays.ToString();                     chb.Visible = true;                     chb.Enabled = false;                 }             }             //当前月日期初始化             int days = DateTime.DaysInMonth(year, month);//当前月的总天数             for (int i = 0; i < days; i++)             {                 CheckBox chb = tlpcontent.Controls.Find("checkBox" + (i + count), true)[0] as CheckBox;                 if (chb != null)                 {                     //chb.Text = oneDay.AddDays(i).ToString("yyyy-MM-dd (dddd)");                     chb.Text = oneDay.AddDays(i).ToString("dd");                     chb.Enabled = true;                     chb.Visible = true;                 }             }             //下一月日期初始化             DateTime downMonth = new DateTime(year, month, 1);             if (month != 12) downMonth = new DateTime(year, month + 1, 1);//当前月的第一天             int kk = 0;             for (int i = (days + count); i <= 42; i++)             {                 CheckBox chb = tlpcontent.Controls.Find("checkBox" + i, true)[0] as CheckBox;                 chb.Text = downMonth.AddDays(kk).ToString("dd");                 chb.Visible = true;                 chb.Enabled = false;                 kk++;             }         }           private int GetDays(string weekDay)         {             switch (weekDay)             {                 case "星期一":                     return 1;                 case "星期二":                     return 2;                 case "星期三":                     return 3;                 case "星期四":                     return 4;                 case "星期五":                     return 5;                 case "星期六":                     return 6;                 case "星期天":                 case "星期日":                     return 7;             }             return 0;         }           private void InitYearAndMonth()         {             List<int> years = new List<int>();             for (int i = -5; i <= 5; i++)//前置5年，后置5年 共11年             {                 if (i < 0) years.Add(DateTime.Now.Year + i);                 if (i >= 0) years.Add(DateTime.Now.Year + i);             }               this.cmbYear.DataSource = years;             this.cmbYear.SelectedIndex = 5;             this.cmbMonth.Text = DateTime.Now.Month.ToString();         }           private void cmbYear_SelectedIndexChanged(object sender, EventArgs e)         {             if (string.IsNullOrEmpty(this.cmbYear.Text)) this.cmbYear.Text = DateTime.Now.Year.ToString();             if (string.IsNullOrEmpty(this.cmbMonth.Text)) this.cmbMonth.Text = DateTime.Now.Month.ToString();             InitDaysControl(int.Parse(this.cmbYear.Text), int.Parse(this.cmbMonth.Text));         }           private void checkBox1_CheckedChanged(object sender, EventArgs e)         {             CheckBox chb = sender as CheckBox;             if (chb.Checked)             {                 string month = this.cmbMonth.Text;                 if (int.Parse(month) < 10) month = "0" + month;                 CurrentDataList.Add(this.cmbYear.Text + "-" + month + "-" + chb.Text);                 chb.BackColor = Color.Wheat;             }             else             {                 string month = this.cmbMonth.Text;                 if (int.Parse(month) < 10) month = "0" + month;                 CurrentDataList.Remove(this.cmbYear.Text + "-" + month + "-" + chb.Text);                 chb.BackColor = SystemColors.Control;             }         }           private void btnTest_Click(object sender, EventArgs e)         {             StringBuilder buf = new StringBuilder();             foreach (string item in CurrentDataList)             {                 buf.Append(item);                 buf.Append("\n");             }             MessageBox.Show(buf.ToString());         }         } }