Set Value of Property When Delete Key is Pressed in PropertyGrid

Question

I am currently working on a project that hosts WinForms designer. I am using PropertyGrid to display manipulate properties of the controls that are dropped on the DesignSurface.

I have created UITypeEditor's to modify values of my custom controls properties.

How can I reset the value of the property to null when Delete key is pressed in the PropertyGrid.

score 4 · Answer 1 · answered Jan 31 '11 at 14:36

4

Actually, all you have to do is add the "DefaultValue" attribute to your property and specify that the default value is null.

Example:

[DefaultValue(typeof(Image), null)]
public Image MyLittlePicture { get; set; }

answered Jan 31 '11 at 14:36

Timothy Khouri

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Can't check right now .. will check and let you know if that works. – Zuhaib Mar 22 '11 at 09:34

score 2 · Accepted Answer · answered Sep 30 '10 at 12:39

2

This is handled in the PropertyDescriptor.

You override ResetValue and CanResetValue.

answered Sep 30 '10 at 12:39

leppie

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Thanks this worked .. I had to implement `ComponentDesigner` & `PropertyDescriptor`. – Zuhaib Sep 30 '10 at 14:06

Set Value of Property When Delete Key is Pressed in PropertyGrid

2 Answers2