The value and text of my datetime picker is not matching. I am setting the value and I can see the new value in debug but Text property is set to current date and users see the Text.

This control is not bound to any date.

Here is the designer code,
private System.Windows.Forms.DateTimePicker myDatetimePicker;
this.myDatetimePicker = new System.Windows.Forms.DateTimePicker();

this.myDatetimePicker.CustomFormat = "MM/dd/yyyy";
this.myDatetimePicker.Format = System.Windows.Forms.DateTimePickerFormat.Custom;
this.myDatetimePicker.Location = new System.Drawing.Point(184, 160);
this.myDatetimePicker.Name = "myDatetimePicker";
this.myDatetimePicker.Size = new System.Drawing.Size(170, 21);
this.myDatetimePicker.TabIndex = 66;

and here is how I am setting the new value.

platformBiosDatetextBox.Value = newDateTime;

After setting new value, I can see that new value is updated but text property is still null. If I check the value in another event, I see that value is set to new value but Text property is set to current date.

I tried with other formats like short but that didn't help.

I tried to assign a string to Text property but that didn't help either.

Am I making any mistakes here?

Thanks

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Sreekanth

The typical explanation for mysterious bugs like this is that you are looking at an instance of the form that is not visible. Most typically created when you use new Form1() when you really need to refer to the running instance of Form1. Add this code to verify if that's the case:

this.Show().

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Hans Passant.

Thanks for the reply.

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Sreekanth

DateTimePicker bug?

http://social.msdn.microsoft.com/Forums/en-US/vbgeneral/thread/49e10d02-5af4-4b2c-ab78-f9328514ab79/

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Thanks, A.m.a.L

Hi Cheers,

Which version of .NET framework did you use? I cannot reproduce the issue on .NET 3.5.

Actually when the form is load, the value of the DateTimePicker has been set to today and the Text property is also string of today. When I click the button to set Value property of DateTimePicker, the Text property changed to the new string according to the value at once.

Did I miss something to reproduce your problem?

Sincerely,
Kira Qian

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I have encountered similar problem. It seems to be related to the Visibility of the DateTimePicker. If it is not visible, the Text property does not exists and is not updated. According to MS it is "by design".

I solved the problem by inheriting the DateTimePicker into new control with following code: