How do retrieve data from database to calender in C# winform

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WinForms

C#3.5

database

Binding

I have created a database with columns cal_id, event name, event start time, event finish time, event date.
but i am getting the point how we can retrieve or show that data in the calendar control.
as in asp.net, we use calender1_dayRender() to retrieve data from the database. how we can show calendar data from the database to calender in c# winform.

What I have tried:

i found a code for asp.net
but dayRender is not available in winform calender.

protected void Calendar1_DayRender(object sender, DayRenderEventArgs e)   
{  
  
    Literal l = new Literal(); //Creating a literal  
    l.Visible = true;  
    l.Text = "<br>"; //for breaking the line in cell  
    e.Cell.Controls.Add(l); //adding in all cell  
  
    da = new SqlDataAdapter("select * from Events", con);  
    DataTable dt = new DataTable();  
    da.Fill(dt);  
    foreach(DataRow dr in dt.Rows)   
    {  
        string x = dr[1].ToString();  
  
        if (dr[1].ToString() == e.Day.Date.ToString()) //comparision  
        {  
            Label lb = new Label();  
            lb.Visible = true;  
            lb.Text = dr[0].ToString();  
  
            string a = lb.Text;  
            e.Cell.Controls.Add(lb);  
            e.Cell.BackColor = System.Drawing.Color.OrangeRed; // changing cell color  
            e.Cell.ToolTip = dr[0].ToString(); //adding tooltip  
        }  
    }