CODEWITHSUNDEEP
c#wpftextboxcustom-controls
Omri Btian
Omri Btian

Reputation: 6547

Overriding TextBox height property default value

I'm creating a custom control deriving from TextBox. I am trying to override the default value of it's Height property, but I keep getting an error that the types don't match.

Metadata override and base metadata must be of the same type or derived type.

on MSDN it states that Height property is of type System.Double.

I have tried the following:

1) converting to double

HeightProperty.OverrideMetadata(typeof(SuggestionTextBox), new UIPropertyMetadata(Convert.ToDouble(200)));

and

HeightProperty.OverrideMetadata(typeof(SuggestionTextBox), new UIPropertyMetadata((double)200));

2) Tried to figure out the the default value by

HeightProperty.DefaultMetadata.DefaultValue

Which returns Double.NaN

EDIT: I'm doing this in the static constructor of the control as shown in the example on MSDN

Any Idea how I can override it's default values?

Upvotes: 2

Views: 827

Answers (1)

Nitin Purohit
Nitin Purohit

Reputation: 18578

The problem is not with the Type of Default value but with the Type of PropertyMetaData, Instead of UIPropertyMetadata you will have to use FrameworkPropertyMetadata as this is what HeightProperty metadata type is.

HeightProperty.OverrideMetadata(typeof(SuggestionTextBox), new FrameworkPropertyMetadata(Convert.ToDouble(200)));

Upvotes: 5

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