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could you please explain what you want to do exactly??<br />
becuase the DateTimePicker has already this functionality!! Just place a DateTimePicker on a form and focus the date portion and it will role up or down on up down keys. Same is true for month/years ..
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could you please explain what you want to do exactly??
becuase the DateTimePicker has already this functionality!! Just place a DateTimePicker on a form and focus the date portion and it will role up or down on up down keys. Same is true for month/years ..

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DateTime d = DateTimePicker.Value;<br />
d.AddDays(1d);<br />
DateTimePicker.Value = d;
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DateTime d = DateTimePicker.Value;
d.AddDays(1d);
DateTimePicker.Value = d;

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Yes, or as AlexFM shows yoiu can do it as a single line of code...I was just trying to break it down.
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Yes, or as AlexFM shows yoiu can do it as a single line of code...I was just trying to break it down.

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Actually, DateTime.AddDays returns DateTime and doesn't change current instance, so you version should be changed.
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Actually, DateTime.AddDays returns DateTime and doesn't change current instance, so you version should be changed.

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How to plus more day to DateTimePicker current
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How to plus more day to DateTimePicker current

Help me about DateTimePicker

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).