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Calendar Controls for WinForms UI Tutorial
Add selected and special days at design time for .NET Windows Forms C# template projects
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Design Time Support - WinForms Calendar Controls

The Windows Forms Calendar controls offer rich design-time support functionality which makes it easy to customizing and configuring the created Calendar. With the Calendar Control for Windows Forms, developers can easily manage shortcuts and images, apply themes in design time and easily switch between them. The Windows Forms Calendar controls are also compatible with Visual Style Builder, Element Hierarchy Editor, and Shape Editor and can fully control the User Interface design in Windows Forms development.

How to Customize Dates at Design Time

The following tutorial shows how to add selected dates and special dates at design time in C# for Windows Forms development environment.
  1. Open the Property Window, and choose the ellipses
  2. The properties of ChooseDates and DateValue could be configured at design time
  3. Click the button Add, a value can be added to the DateValue
  4. If developers need to customize an existed date value, click the date in the Members list and choose the property of DateValue from the drop down list, where the date could be changed.
  5. The Remove button in the Members list allows developers easily delete a date.
  6. The Up and Down buttons are designed for developers to easily reorder the properties
  7. If developers need to give up the changes that have made, just click the Cancel button.
  8. After finishing the customizing, hit the OK button to save the changes and close the property window.

How to Add Special Days at Design Time

If developers need to add some special days like public holidays, vacation time, birthdays to the Calendar as a schedule at design time in the development of C# WinForms application, the following steps could achieve this easily.
  1. Open the Property Window, and choose the ellipses
  2. Customize the property of SpecialDays, which allows users adding, removing, and changing the days.
  3. The Add button is used to append a day to the Calendar.
  4. The Remove button is used to remove a chosen date from the Calendar
  5. The Up and Down buttons are designed for developers to easily reorder the marked special days
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